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China Hot selling for Clean Vacuum of Oil-Free Dry Air Cooled Screw Vacuum Pump vacuum pump and compressor

Product Description

Product Description

Dry screw vacuum pump, is the use of a pair of screw, made in the pump shell synchronous high-speed reverse rotation of the effects of the suction and exhaust and suction device, 2 screw fine dynamic balancing correction, and is supported by bearings, is installed in the pump shell, between screw and screw has a certain gap, so the pump work, no friction between each other, smooth running, low noise, Working chamber without lubricating oil, therefore, dry screw pump can remove a lot of steam and a small amount of dust gas occasions, higher limit vacuum, lower power consumption, energy saving, maintenance-free and other advantages.Dry Oil-Free Air Cooling Screw Vacuum Pump ,This is an advanced and widely used vacuum pump at present, It is 1 of the best-selling products of our company.
 It adopts explosion-proof motor with high configuration, It has the characteristics of low noise, no oil and pollution, clean and high vacuum, simple and convenient use, operation and maintenance, Widely used in many industries, For example, oil and gas recovery, vacuum coating, biomedicine, food processing, single crystal furnace, vacuum forming, vacuum melting, electronic photovoltaic, semiconductor synthesis and many other industries are used.
The dry oil-free screw vacuum pump produced by our company is divided into air cooling and water cooling according to the extraction rate, and there are many models for you to choose.

Our Advantages

There is no medium in the working chamber, which can obtain a clean vacuum.
. No clearance between rotating parts, high speed operation, small overall volume.

There is no compression in the gas, suitable for extraction of coagulable gas.

Can remove a lot of steam and a small amount of dust gas occasions.
. High vacuum, the ultimate vacuum up to 1 Pa.

Screw material is high strength special material, material density, wear resistance, stable performance.

No friction rotating parts, low noise.
. Simple structure, convenient maintenance.
Wider range of use: corrosive environment can be used.

No oil consumption, no water.

Pump gas directly discharged from the pump body, no pollution of water, no environmental pressure, more convenient gas recovery.

It can be composed of oil-free unit with Roots pump and molecular pump.

 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Product Parameters

Type
(Air cooled series)
                                                                            Basic parameters 
Pumping speed
(m3/h)
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
(mm)
outlet caliber (mm) Pump head weight
(kg)
noise dB(A) Overall dimension
(length*width*height)
(mm)
LG-10 10 ≤5 0.75 2730 KF16 KF16 30 ≤ 72 655x260x285
LG-20 20 ≤5 1.1 2840 KF25 KF25 55 ≤72 720x305x370
LG-50 50 ≤10 2.2 2850 KF40 KF40 90 ≤75 920x350x420
LG-70 70 ≤30 3 2850 KF40 KF40 110 ≤75 910x390x460
LG-90 90 ≤30 4 2870 KF50 KF50 125 ≤80 1000x410x495

Characteristic Curve

 

Detailed Photos

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

Product quality wins consumer cooperation

In shipment

ISO 9001

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Lifetime Paid Service
Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Customization:
Available

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screw vane pump

What are the cost considerations when purchasing and maintaining screw vacuum pumps?

When purchasing and maintaining screw vacuum pumps, several cost considerations come into play. Here’s a detailed explanation of the key factors to consider:

1. Initial Purchase Cost:

The initial purchase cost of a screw vacuum pump is an important consideration. The cost can vary depending on factors such as the pump’s capacity, specifications, features, and the manufacturer. Generally, screw vacuum pumps tend to have a higher upfront cost compared to some other types of vacuum pumps. However, it’s essential to evaluate the long-term benefits and performance advantages offered by screw vacuum pumps to determine their overall value for the specific application.

2. Energy Consumption:

Energy consumption is a significant ongoing cost associated with operating screw vacuum pumps. While screw vacuum pumps are known for their high efficiency, it’s important to consider the power requirements and energy consumption of the specific pump model. Opting for energy-efficient screw vacuum pumps can result in long-term cost savings by reducing electricity bills and minimizing the environmental impact. Additionally, pumps equipped with advanced control systems or variable speed drives allow for better energy optimization and can further enhance cost-effectiveness.

3. Maintenance and Service:

Maintenance and service costs are important considerations throughout the lifecycle of a screw vacuum pump. Regular maintenance is necessary to ensure optimal performance, reliability, and longevity of the equipment. The specific maintenance requirements and associated costs can vary depending on the pump model and manufacturer. It’s crucial to follow the manufacturer’s recommended maintenance schedule and guidelines. Some maintenance tasks may include changing seals, replacing filters, inspecting and lubricating bearings, and monitoring performance parameters. Proper maintenance can prevent costly breakdowns, extend the pump’s service life, and minimize unexpected repair expenses.

4. Spare Parts and Consumables:

When budgeting for screw vacuum pumps, it’s important to consider the cost of spare parts and consumables. Over time, certain components of the pump may require replacement, such as seals, gaskets, filters, or lubricants. The availability and cost of these spare parts can vary depending on the pump model and manufacturer. It’s advisable to inquire about the availability, pricing, and expected lifespan of consumables when purchasing the pump and factor these costs into the overall budget.

5. Operational Downtime:

Operational downtime can have significant cost implications for any industrial process. When a screw vacuum pump requires maintenance, repair, or replacement, it may result in downtime, leading to production interruptions, decreased efficiency, and potential revenue loss. Therefore, it’s important to consider the reliability, serviceability, and availability of technical support when choosing a screw vacuum pump. Opting for reputable manufacturers with a track record of providing reliable products and responsive customer support can help minimize operational downtime and mitigate associated costs.

6. Lifecycle Cost Analysis:

When evaluating the cost considerations of screw vacuum pumps, it’s beneficial to conduct a lifecycle cost analysis. This analysis takes into account not only the initial purchase cost but also the long-term operational costs, maintenance expenses, energy consumption, and expected service life of the pump. By considering the total cost of ownership over the pump’s lifespan, including factors like efficiency, reliability, and maintenance requirements, it becomes easier to assess the cost-effectiveness of different pump options and make informed purchasing decisions.

7. Warranty and After-Sales Support:

Considering the warranty and after-sales support offered by the pump manufacturer is essential. A comprehensive warranty can provide cost protection against potential defects or premature failures. Additionally, reliable after-sales support, technical assistance, and readily available spare parts can contribute to minimizing downtime, reducing repair costs, and ensuring the long-term performance of the screw vacuum pump.

In summary, the cost considerations when purchasing and maintaining screw vacuum pumps include the initial purchase cost, energy consumption, maintenance and service expenses, spare parts and consumables, operational downtime, lifecycle cost analysis, and warranty and after-sales support. By carefully evaluating these factors and assessing the specific needs of the application, businesses can make informed decisions to optimize cost-effectiveness and achieve reliable vacuum pump performance.

screw vane pump

Are there noise and vibration considerations when using screw vacuum pumps?

Yes, there are noise and vibration considerations when using screw vacuum pumps. Here’s a detailed explanation of the noise and vibration factors associated with screw vacuum pumps:

1. Noise Generation:

Screw vacuum pumps can generate noise during their operation. The noise level depends on various factors, including the pump’s design, speed, motor type, and the specific application. While screw vacuum pumps are generally quieter compared to some other types of vacuum pumps, noise levels can still vary. It’s important to consider the noise emissions of the pump, especially in environments where noise control and worker comfort are important factors.

2. Vibration:

Screw vacuum pumps can also produce vibrations during their operation. Vibrations may result from mechanical forces, imbalances, misalignment, or resonance within the pump or its associated components. Excessive vibration can lead to reduced pump performance, accelerated wear of parts, and potential damage to the pump or connected equipment. It’s essential to minimize and control vibrations to ensure smooth and reliable operation.

3. Impact on Performance:

Excessive noise and vibration can negatively impact the performance of screw vacuum pumps. High noise levels can indicate inefficiencies, mechanical issues, or the need for maintenance. Vibrations can cause misalignment, decreased sealing effectiveness, and increased wear on components, affecting the pump’s overall efficiency and vacuum generation capability. Monitoring and addressing noise and vibration concerns are crucial to maintaining optimal pump performance.

4. Noise Control Measures:

To mitigate noise generated by screw vacuum pumps, several noise control measures can be implemented. These include using sound enclosures or barriers around the pump to reduce noise propagation, installing vibration isolation mounts or pads to minimize vibration transmission to surrounding structures, and employing acoustic insulation materials to absorb and dampen noise. Additionally, selecting pumps with lower noise ratings or opting for models specifically designed for reduced noise emissions can help minimize noise concerns.

5. Vibration Control and Maintenance:

To address vibration issues, it is important to ensure proper installation and alignment of the screw vacuum pump. This includes using appropriate mounting techniques and ensuring proper anchoring to reduce vibrations. Regular maintenance, such as inspections, lubrication, and replacement of worn-out components, can help prevent excessive vibrations and maintain smooth pump operation. Additionally, balancing rotating parts and addressing any misalignment or resonance issues can help minimize vibrations and extend the pump’s service life.

6. Occupational Health and Safety:

Noise and vibration considerations are essential from an occupational health and safety perspective. Prolonged exposure to high noise levels can have detrimental effects on worker health, including hearing damage and increased stress levels. Vibrations can also contribute to operator discomfort and fatigue. It is important to comply with relevant workplace noise regulations, provide appropriate personal protective equipment, and implement measures to minimize noise and vibration exposure for personnel working with or around screw vacuum pumps.

In summary, noise and vibration considerations are important when using screw vacuum pumps. By implementing noise control measures, addressing vibration issues, ensuring proper maintenance, and prioritizing occupational health and safety, the noise and vibration levels associated with screw vacuum pumps can be effectively managed. This helps maintain pump performance, prolong equipment life, and provide a safe and comfortable working environment.

screw vane pump

What are the advantages of using a screw vacuum pump in industrial processes?

Using a screw vacuum pump in industrial processes offers several advantages, making it a preferred choice for various applications. Here are some key advantages:

  • High Efficiency: Screw vacuum pumps are known for their high efficiency in handling large volumes of gas or vapor. They operate based on positive displacement, ensuring consistent performance regardless of pressure differentials. This high volumetric efficiency allows for faster evacuation and quicker process cycles, increasing overall productivity.
  • Wide Operating Range: Screw vacuum pumps are capable of maintaining stable vacuum levels across a wide range of pressures. They can achieve both low and high vacuum levels, making them versatile for different industrial processes. This wide operating range enables their use in applications that require precise control of vacuum levels.
  • Continuous Operation: Screw vacuum pumps are designed for continuous operation without the need for frequent shutdowns or maintenance. They can handle demanding industrial processes that require sustained vacuum levels for extended periods. This continuous operation improves productivity and reduces downtime.
  • Reliability and Durability: Screw vacuum pumps are known for their reliability and robust construction. They are designed to withstand harsh operating conditions, including high temperatures, corrosive environments, and heavy-duty applications. Their durable design and materials ensure long service life and minimal maintenance requirements.
  • Low Noise Levels: Screw vacuum pumps generally produce lower noise levels compared to other types of vacuum pumps. This feature is particularly beneficial in industrial settings where noise reduction is important for the comfort and safety of workers.
  • Ability to Handle Wet and Dirty Gases: Screw vacuum pumps can handle wet and dirty gases effectively without compromising performance. They are designed to handle condensable vapors, particulates, and liquid carryover, which makes them suitable for applications where the gas or vapor may contain contaminants.
  • Reduced Environmental Impact: Screw vacuum pumps often incorporate energy-efficient designs, resulting in reduced power consumption and lower operating costs. Additionally, some models may include features such as oil-free operation, which eliminates the need for lubricating oil and reduces the environmental impact.
  • Application Versatility: Screw vacuum pumps find applications in a wide range of industries, including chemical processing, pharmaceuticals, food and beverage, power generation, electronics manufacturing, and more. They are capable of handling various gases and vapors, making them adaptable to different industrial processes.

Overall, the advantages of using a screw vacuum pump in industrial processes include high efficiency, wide operating range, continuous operation, reliability, low noise levels, ability to handle wet and dirty gases, reduced environmental impact, and application versatility. These factors contribute to improved productivity, cost savings, and enhanced process control, making screw vacuum pumps a popular choice in many industrial settings.

China Hot selling for Clean Vacuum of Oil-Free Dry Air Cooled Screw Vacuum Pump   vacuum pump and compressor	China Hot selling for Clean Vacuum of Oil-Free Dry Air Cooled Screw Vacuum Pump   vacuum pump and compressor
editor by CX 2024-04-15

China best 850W Air Compression Pumpoil Free Piston Vacuum Pump Small Air Compressor Cn Zhe Made in China Silent Oil Pump for Packaging Machinery with Best Sales

Product Description

  

Model

BST850AFZ/BSZ

Voltage/frequency  (V/Hz)

220-240V/50Hz 100v-120v/60Hz

Input power(W)

≤550

Speed (r/min)

≥1350  1650

Primary vacuumKPa

-93KPa

Secondary vacuumKPa

-98KPa

Restart pressure (KPa)

0KPa

Rated volume flow  (m3/h)

≥12m3/h @0KPa; 

Noise dB(A)

≤62dB(A)

Ambient temperature  ºC

-5-40 ºC

Insulation Class

F

Cold insulation resistance  (MΩ)

≥100MΩ

Voltage resistance

1500V/50Hz 1min(No breakdown)

Thermal protector

Automatic reset 135±5ºC

Capacitance (μF)

25μF±5%  75μF±5% 

Net weight (Kg)

10.5Kg

Installation Dimensions (mm)

223.2×88.9 mm(4XM6)

External Dimensions (mm)

268.8*128*214.7mm

Typical application
Respirator (ventilator) oxygenerator
Disinfectant sprayer Blood analyzer
Clinical aspirator Dialysis / hemodialysis
Dental vacuum drying oven Air suspension system
Vending machines / coffee blenders and coffee machines Massage chair
Chromatographic analyzer Teaching instrument platform
On board access control system Airborne oxygen generator


      Why choose CHINAMFG air compressor
1. It saves 10-30% energy than the air compressor produced by ordinary manufacturers.
2. It is widely used in medical oxygen generator and ventilator .
3.  A large number of high-speed train and automobile application cases, supporting – 41 to 70 ºC, 0-6000 CHINAMFG above sea level .
4. Medium and high-end quality, with more than 7000 hours of trouble free operation for conventional products and more than 15000 hours of trouble free operation for high-end  products.
5. Simple operation, convenient maintenance and remote guidance.
6. Faster delivery time, generally completed within 25 days within 1000 PCs.

 

Machine Parts

Name: Motor 
Brand: COMBESTAIR 
Original: China
1.The coil adopts the fine pure copper enameled wire, and the rotor adopts the famous brand silicon steel sheet such as ZheJiang baosteel.
2.The customer can choose the insulation grade B or F motor according to What he wants.
3.The motor has a built-in thermal protector, which can select external heat sensor.
4.Voltage from AC100V ~120V, 200V ~240V, 50Hz / 60Hz, DC6V~200V optional ; AC motor can choose double voltage double frequency ; DC Motor can choose the control of the infinitely variable speed.

Machine Parts

Name: Bearing
Brand: ERB , CHINAMFG , NSK 
Original: China ect.
1.Standard products choose the special bearing ‘ERB’ in oil-free compressor, and the environment temperature tolerance from -50ºC to 180 ºC . Ensure no fault operation for 20,000 hours.
2.Customers can select TPI, NSK and other imported bearings according to the working condition.

Machine Parts

Name: Valve plates
Brand: SANDVIK
Original: Sweden
1.Custom the valve steel of Sweden SANDVIK; Good flexibility and long durability.
2.Thickness from 0.08mm to 1.2mm, suitable for maximum pressure from 0.8 MPa to 1.2 MPa.

Machine Parts

Name: Piston ring
Brand: COMBESTAIR-OEM , Saint-Gobain
Original: China , France
1.Using domestic famous brand–Polytetrafluoroethylene composite material; Wear-resistant high temperature; Ensure more than 10,000 hours of service life.
2.High-end products: you can choose the ST.gobain’s piston ring from the American import.

serial
number
Code number Name and specification Quantity Material Note
1 212571109 Fan cover 2 Reinforced nylon 1571  
2 212571106 Left fan 1 Reinforced nylon 1571  
3 212571101 Left box 1 Die-cast aluminum alloy YL104  
4 212571301 Connecting rod 2 Die-cast aluminum alloy YL104  
5 212571304 Piston cup 2 PHB filled PTFE  
6 212571302 Clamp 2 Die-cast aluminum alloy YL102  
7 7050616 Screw of cross head 2 Carbon structural steel of cold heading M6•16
8 212571501 Air cylinder 2 Thin wall pipe of aluninun alloy 6A02T4  
9 17103 Seal ring of Cylinder 2 Silicone rubber  
10 212571417 Sealing ring of cylinder cover 2 Silicone rubber  
11 212571401 Cylinder head 2 Die-cast aluminum alloy YL102  
12 7571525 Screw of inner hexagon Cylinder head 12   M5•25
13 17113 Sealing ring of connecting pipe 4 Silicong rubber  
14 212571801 Connecting pipe 2 Aluminum and aluminum alloy connecting rod LY12  
15 7100406 Screw of Cross head 4 1Cr13N19 M4•6
16 212571409 Limit block 2 Die-cast aluminum alloy YL102  
17 000402.2 Air outlet valve 2 7Cr27 quenching steel belt of The Swedish sandvik  
18 212571403 valve 2 Die-cast aluminum alloy YL102  
19 212571404 Air inlet valve 2 7Cr27 quenching steel belt of The Swedish sandvik  
20 212571406 Metal gasket 2 Stainless steel plate of heat and acidresistance  
21 212571107 Right fan 1 Reinforced nylon 1571  
22 212571201 Crank 2 Gray castiron  H20-40  
23 14040 Bearing 6006-2Z 2    
24 70305 Tighten screw of inner hexagon flat end 2   M8•8
25 7571520 Screw of inner hexagon Cylinder head 2   M5•20
26 212571102 Right box 1 Die-cast aluminum alloy YL104  
27 6P-4 Lead protective ring 1    
28 7095712-211 Hexagon head bolt 2 Carbon structural steel of cold heading M5•152
29 715710-211 Screw of Cross head 2 Carbon structural steel of cold heading M5•120
30 16602 Light spring washer 4   ø5
31 212571600 Stator 1    
32 70305 Lock nut of hexagon flange faces 2    
33 212571700 Rotor 1    
34 14032 Bearing 6203-2Z 2    

 


FAQ

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our factory is located in Linbei industrial area No.30 HangZhou City of ZHangZhoug Province, China

Q3: Warranty terms of your machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: Generally, 1000 pcs can be delivered within 25 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome

Q7:Can you accept non-standard customization?

A7:We have the ability to develop new products and can customize, develop and research according to your requirements

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After-sales Service: Remote Guided Maintenance
Warranty: 2 Years
Principle: Mixed-Flow Compressor
Samples:
US$ 65/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

vacuum pump

What Is the Vacuum Level and How Is It Measured in Vacuum Pumps?

The vacuum level refers to the degree of pressure below atmospheric pressure in a vacuum system. It indicates the level of “emptiness” or the absence of gas molecules in the system. Here’s a detailed explanation of vacuum level measurement in vacuum pumps:

Vacuum level is typically measured using pressure units that represent the difference between the pressure in the vacuum system and atmospheric pressure. The most common unit of measurement for vacuum level is the Pascal (Pa), which is the SI unit. Other commonly used units include Torr, millibar (mbar), and inches of mercury (inHg).

Vacuum pumps are equipped with pressure sensors or gauges that measure the pressure within the vacuum system. These gauges are specifically designed to measure the low pressures encountered in vacuum applications. There are several types of pressure gauges used for measuring vacuum levels:

1. Pirani Gauge: Pirani gauges operate based on the thermal conductivity of gases. They consist of a heated element exposed to the vacuum environment. As gas molecules collide with the heated element, they transfer heat away, causing a change in temperature. By measuring the change in temperature, the pressure can be inferred, allowing the determination of the vacuum level.

2. Thermocouple Gauge: Thermocouple gauges utilize the thermal conductivity of gases similar to Pirani gauges. They consist of two dissimilar metal wires joined together, forming a thermocouple. As gas molecules collide with the thermocouple, they cause a temperature difference between the wires, generating a voltage. The voltage is proportional to the pressure and can be calibrated to provide a reading of the vacuum level.

3. Capacitance Manometer: Capacitance manometers measure pressure by detecting the change in capacitance between two electrodes caused by the deflection of a flexible diaphragm. As the pressure in the vacuum system changes, the diaphragm moves, altering the capacitance and providing a measurement of the vacuum level.

4. Ionization Gauge: Ionization gauges operate by ionizing gas molecules in the vacuum system and measuring the resulting electrical current. The ion current is proportional to the pressure, allowing the determination of the vacuum level. There are different types of ionization gauges, such as hot cathode, cold cathode, and Bayard-Alpert gauges.

5. Baratron Gauge: Baratron gauges utilize the principle of capacitance manometry but with a different design. They consist of a pressure-sensing diaphragm separated by a small gap from a reference electrode. The pressure difference between the vacuum system and the reference electrode causes the diaphragm to deflect, changing the capacitance and providing a measurement of the vacuum level.

It’s important to note that different types of vacuum pumps may have different pressure ranges and may require specific pressure gauges suitable for their operating conditions. Additionally, vacuum pumps are often equipped with multiple gauges to provide information about the pressure at different stages of the pumping process or in different parts of the system.

In summary, vacuum level refers to the pressure below atmospheric pressure in a vacuum system. It is measured using pressure gauges specifically designed for low-pressure environments. Common types of pressure gauges used in vacuum pumps include Pirani gauges, thermocouple gauges, capacitance manometers, ionization gauges, and Baratron gauges.

\vacuum pump

Can Vacuum Pumps Be Used for Soil and Groundwater Remediation?

Vacuum pumps are indeed widely used for soil and groundwater remediation. Here’s a detailed explanation:

Soil and groundwater remediation refers to the process of removing contaminants from the soil and groundwater to restore environmental quality and protect human health. Vacuum pumps play a crucial role in various remediation techniques by facilitating the extraction and treatment of contaminated media. Some of the common applications of vacuum pumps in soil and groundwater remediation include:

1. Soil Vapor Extraction (SVE): Soil vapor extraction is a widely used remediation technique for volatile contaminants present in the subsurface. It involves the extraction of vapors from the soil by applying a vacuum to the subsurface through wells or trenches. Vacuum pumps create a pressure gradient that induces the movement of vapors towards the extraction points. The extracted vapors are then treated to remove or destroy the contaminants. Vacuum pumps play a vital role in SVE by maintaining the necessary negative pressure to enhance the volatilization and extraction of contaminants from the soil.

2. Dual-Phase Extraction (DPE): Dual-phase extraction is a remediation method used for the simultaneous extraction of both liquids (such as groundwater) and vapors (such as volatile organic compounds) from the subsurface. Vacuum pumps are utilized to create a vacuum in extraction wells or points, drawing out both the liquid and vapor phases. The extracted groundwater and vapors are then separated and treated accordingly. Vacuum pumps are essential in DPE systems for efficient and controlled extraction of both liquid and vapor-phase contaminants.

3. Groundwater Pumping and Treatment: Vacuum pumps are also employed in groundwater remediation through the process of pumping and treatment. They are used to extract contaminated groundwater from wells or recovery trenches. By creating a vacuum or negative pressure, vacuum pumps facilitate the flow of groundwater towards the extraction points. The extracted groundwater is then treated to remove or neutralize the contaminants before being discharged or re-injected into the ground. Vacuum pumps play a critical role in maintaining the required flow rates and hydraulic gradients for effective groundwater extraction and treatment.

4. Air Sparging: Air sparging is a remediation technique used to treat groundwater and soil contaminated with volatile organic compounds (VOCs). It involves the injection of air or oxygen into the subsurface to enhance the volatilization of contaminants. Vacuum pumps are utilized in air sparging systems to create a vacuum or negative pressure zone in wells or points surrounding the contaminated area. This induces the movement of air and oxygen through the soil, facilitating the release and volatilization of VOCs. Vacuum pumps are essential in air sparging by maintaining the necessary negative pressure gradient for effective contaminant removal.

5. Vacuum-Enhanced Recovery: Vacuum-enhanced recovery, also known as vacuum-enhanced extraction, is a remediation technique used to recover non-aqueous phase liquids (NAPLs) or dense non-aqueous phase liquids (DNAPLs) from the subsurface. Vacuum pumps are employed to create a vacuum or negative pressure gradient in recovery wells or trenches. This encourages the movement and extraction of NAPLs or DNAPLs towards the recovery points. Vacuum pumps facilitate the efficient recovery of these dense contaminants, which may not be easily recoverable using traditional pumping methods.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, liquid ring pumps, or air-cooled pumps, may be used in soil and groundwater remediation depending on the specific requirements of the remediation technique and the nature of the contaminants.

In summary, vacuum pumps play a vital role in various soil and groundwater remediation techniques, including soil vapor extraction, dual-phase extraction, groundwater pumping and treatment, air sparging, and vacuum-enhanced recovery. By creating and maintaining the necessary pressure differentials, vacuum pumps enable the efficient extraction, treatment, and removal of contaminants, contributing to the restoration of soil and groundwater quality.

vacuum pump

What Is a Vacuum Pump, and How Does It Work?

A vacuum pump is a mechanical device used to create and maintain a vacuum or low-pressure environment within a closed system. Here’s a detailed explanation:

A vacuum pump operates on the principle of removing gas molecules from a sealed chamber, reducing the pressure inside the chamber to create a vacuum. The pump accomplishes this through various mechanisms and techniques, depending on the specific type of vacuum pump. Here are the basic steps involved in the operation of a vacuum pump:

1. Sealed Chamber:

The vacuum pump is connected to a sealed chamber or system from which air or gas molecules need to be evacuated. The chamber can be a container, a pipeline, or any other enclosed space.

2. Inlet and Outlet:

The vacuum pump has an inlet and an outlet. The inlet is connected to the sealed chamber, while the outlet may be vented to the atmosphere or connected to a collection system to capture or release the evacuated gas.

3. Mechanical Action:

The vacuum pump creates a mechanical action that removes gas molecules from the chamber. Different types of vacuum pumps use various mechanisms for this purpose:

– Positive Displacement Pumps: These pumps physically trap gas molecules and remove them from the chamber. Examples include rotary vane pumps, piston pumps, and diaphragm pumps.

– Momentum Transfer Pumps: These pumps use high-speed jets or rotating blades to transfer momentum to gas molecules, pushing them out of the chamber. Examples include turbomolecular pumps and diffusion pumps.

– Entrapment Pumps: These pumps capture gas molecules by adsorbing or condensing them on surfaces or in materials within the pump. Cryogenic pumps and ion pumps are examples of entrainment pumps.

4. Gas Evacuation:

As the vacuum pump operates, it creates a pressure differential between the chamber and the pump. This pressure differential causes gas molecules to move from the chamber to the pump’s inlet.

5. Exhaust or Collection:

Once the gas molecules are removed from the chamber, they are either exhausted into the atmosphere or collected and processed further, depending on the specific application.

6. Pressure Control:

Vacuum pumps often incorporate pressure control mechanisms to maintain the desired level of vacuum within the chamber. These mechanisms can include valves, regulators, or feedback systems that adjust the pump’s operation to achieve the desired pressure range.

7. Monitoring and Safety:

Vacuum pump systems may include sensors, gauges, or indicators to monitor the pressure levels, temperature, or other parameters. Safety features such as pressure relief valves or interlocks may also be included to protect the system and operators from overpressure or other hazardous conditions.

It’s important to note that different types of vacuum pumps have varying levels of vacuum they can achieve and are suitable for different pressure ranges and applications. The choice of vacuum pump depends on factors such as the required vacuum level, gas composition, pumping speed, and the specific application’s requirements.

In summary, a vacuum pump is a device that removes gas molecules from a sealed chamber, creating a vacuum or low-pressure environment. The pump accomplishes this through mechanical actions, such as positive displacement, momentum transfer, or entrapment. By creating a pressure differential, the pump evacuates gas from the chamber, and the gas is either exhausted or collected. Vacuum pumps play a crucial role in various industries, including manufacturing, research, and scientific applications.

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editor by CX 2024-04-12

China wholesaler CHINAMFG Variable Pitch Air Cooled Oil Electrical Dry Rotary Screw Vane Vacuum Pump for Vacuum Industry with high quality

Product Description

SCREW PUMP


Due to the special geometric shapes of the 2 components, separate sealed chambers are formed respectively. The medium flows uniformly in the axial direction, the internal flow rate is low, the volume remains unchanged, and the pressure is stable, so turbulence and agitation are not generated. The output pressure of each stage pump is 0.6MPa, and the head is 60m (clean water). Because the stator is made of a variety of elastic materials, this kind of pump has the characteristics that ordinary pumps can’t handle high-viscosity fluid transportation and the transportation of medium containing hard suspended particles or medium containing fiber. The flow rate is proportional to the speed.

The single screw pump has compact structure, small volume and easy maintenance. Strong adaptability to the medium, stable flow and small pressure pulsation. The working temperature is lower than 80ºC, if high temperature medium needs to be transported, it can be customized. It is widely used in food, metallurgy, papermaking, printing and dyeing, chemical, fertilizer, pharmaceutical and other industrial sectors.

Parameter:

Head 60-120m
Speed 0-960Rpm
Power 0.75-75kw
Voltage 380V
Inlet 25-250mm
Outlet 25-250mm
Temperaturer -20C to 150C
Flow 0.8-260m3/h
Others As details

Structure

Parameter

Parts picture

More details,pls contact with us ! /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 1 Year
Warranty: 1 Year
Max.Head: >150m
Max.Capacity: >400 L/min
Driving Type: Centrifugal Pump
Material: Stainless Steel
Customization:
Available

|

vacuum pump

Can Vacuum Pumps Be Used for Vacuum Packaging?

Yes, vacuum pumps can be used for vacuum packaging. Here’s a detailed explanation:

Vacuum packaging is a method used to remove air from a package or container, creating a vacuum environment. This process helps to extend the shelf life of perishable products, prevent spoilage, and maintain product freshness. Vacuum pumps play a crucial role in achieving the desired vacuum level for effective packaging.

When it comes to vacuum packaging, there are primarily two types of vacuum pumps commonly used:

1. Single-Stage Vacuum Pumps: Single-stage vacuum pumps are commonly used for vacuum packaging applications. These pumps use a single rotating vane or piston to create a vacuum. They can achieve moderate vacuum levels suitable for most packaging requirements. Single-stage pumps are relatively simple in design, compact, and cost-effective.

2. Rotary Vane Vacuum Pumps: Rotary vane vacuum pumps are another popular choice for vacuum packaging. These pumps utilize multiple vanes mounted on a rotor to create a vacuum. They offer higher vacuum levels compared to single-stage pumps, making them suitable for applications that require deeper levels of vacuum. Rotary vane pumps are known for their reliability, consistent performance, and durability.

When using vacuum pumps for vacuum packaging, the following steps are typically involved:

1. Preparation: Ensure that the packaging material, such as vacuum bags or containers, is suitable for vacuum packaging and can withstand the vacuum pressure without leakage. Place the product to be packaged inside the appropriate packaging material.

2. Sealing: Properly seal the packaging material, either by heat sealing or using specialized vacuum sealing equipment. This ensures an airtight enclosure for the product.

3. Vacuum Pump Operation: Connect the vacuum pump to the packaging equipment or directly to the packaging material. Start the vacuum pump to initiate the vacuuming process. The pump will remove the air from the packaging, creating a vacuum environment.

4. Vacuum Level Control: Monitor the vacuum level during the packaging process using pressure gauges or vacuum sensors. Depending on the specific packaging requirements, adjust the vacuum level accordingly. The goal is to achieve the desired vacuum level suitable for the product being packaged.

5. Sealing and Closure: Once the desired vacuum level is reached, seal the packaging material completely to maintain the vacuum environment. This can be done by heat sealing the packaging material or using specialized sealing mechanisms designed for vacuum packaging.

6. Product Labeling and Storage: After sealing, label the packaged product as necessary and store it appropriately, considering factors such as temperature, humidity, and light exposure, to maximize product shelf life.

It’s important to note that the specific vacuum level required for vacuum packaging may vary depending on the product being packaged. Some products may require a partial vacuum, while others may require a more stringent vacuum level. The choice of vacuum pump and the control mechanisms employed will depend on the specific vacuum packaging requirements.

Vacuum pumps are widely used in various industries for vacuum packaging applications, including food and beverage, pharmaceuticals, electronics, and more. They provide an efficient and reliable means of creating a vacuum environment, helping to preserve product quality and extend shelf life.

vacuum pump

Can Vacuum Pumps Be Used for Leak Detection?

Yes, vacuum pumps can be used for leak detection purposes. Here’s a detailed explanation:

Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.

Here are some ways in which vacuum pumps can be used for leak detection:

1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.

2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.

3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.

4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.

5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.

In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.

vacuum pump

What Are the Primary Applications of Vacuum Pumps?

Vacuum pumps have a wide range of applications across various industries. Here’s a detailed explanation:

1. Industrial Processes:

Vacuum pumps play a vital role in numerous industrial processes, including:

– Vacuum Distillation: Vacuum pumps are used in distillation processes to lower the boiling points of substances, enabling separation and purification of various chemicals and compounds.

– Vacuum Drying: Vacuum pumps aid in drying processes by creating a low-pressure environment, which accelerates moisture removal from materials without excessive heat.

– Vacuum Packaging: Vacuum pumps are used in the food industry to remove air from packaging containers, prolonging the shelf life of perishable goods by reducing oxygen exposure.

– Vacuum Filtration: Filtration processes can benefit from vacuum pumps to enhance filtration rates by applying suction, facilitating faster separation of solids and liquids.

2. Laboratory and Research:

Vacuum pumps are extensively used in laboratories and research facilities for various applications:

– Vacuum Chambers: Vacuum pumps create controlled low-pressure environments within chambers for conducting experiments, testing materials, or simulating specific conditions.

– Mass Spectrometry: Mass spectrometers often utilize vacuum pumps to create the necessary vacuum conditions for ionization and analysis of samples.

– Freeze Drying: Vacuum pumps enable freeze-drying processes, where samples are frozen and then subjected to a vacuum, allowing the frozen water to sublimate directly from solid to vapor state.

– Electron Microscopy: Vacuum pumps are essential for electron microscopy techniques, providing the necessary vacuum environment for high-resolution imaging of samples.

3. Semiconductor and Electronics Industries:

High vacuum pumps are critical in the semiconductor and electronics industries for manufacturing and testing processes:

– Semiconductor Fabrication: Vacuum pumps are used in various stages of chip manufacturing, including deposition, etching, and ion implantation processes.

– Thin Film Deposition: Vacuum pumps create the required vacuum conditions for depositing thin films of materials onto substrates, as done in the production of solar panels, optical coatings, and electronic components.

– Leak Detection: Vacuum pumps are utilized in leak testing applications to detect and locate leaks in electronic components, systems, or pipelines.

4. Medical and Healthcare:

Vacuum pumps have several applications in the medical and healthcare sectors:

– Vacuum Assisted Wound Closure: Vacuum pumps are used in negative pressure wound therapy (NPWT), where they create a controlled vacuum environment to promote wound healing and removal of excess fluids.

– Laboratory Equipment: Vacuum pumps are essential in medical and scientific equipment such as vacuum ovens, freeze dryers, and centrifugal concentrators.

– Anesthesia and Medical Suction: Vacuum pumps are utilized in anesthesia machines and medical suction devices to create suction and remove fluids or gases from the patient’s body.

5. HVAC and Refrigeration:

Vacuum pumps are employed in the HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries:

– Refrigeration and Air Conditioning Systems: Vacuum pumps are used during system installation, maintenance, and repair to evacuate moisture and air from refrigeration and air conditioning systems, ensuring efficient operation.

– Vacuum Insulation Panels: Vacuum pumps are utilized in the manufacturing of vacuum insulation panels, which offer superior insulation properties for buildings and appliances.

6. Power Generation:

Vacuum pumps play a role in power generation applications:

– Steam Condenser Systems: Vacuum pumps are used in power plants to remove non-condensable gases from steam condenser systems, improving thermal efficiency.

– Gas Capture: Vacuum pumps are utilized to capture and remove gases, such as hydrogen or helium, in nuclear power plants, research reactors, or particle accelerators.

These are just a few examples of the primary applications of vacuum pumps. The versatility and wide range of vacuum pump types make them essential in numerous industries, contributing to various manufacturing processes, research endeavors, and technological advancements.

China wholesaler CHINAMFG Variable Pitch Air Cooled Oil Electrical Dry Rotary Screw Vane Vacuum Pump for Vacuum Industry   with high quality China wholesaler CHINAMFG Variable Pitch Air Cooled Oil Electrical Dry Rotary Screw Vane Vacuum Pump for Vacuum Industry   with high quality
editor by CX 2024-04-10

China Hot selling LG 50 2.2kw 50m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation vacuum pump diy

Product Description

 

Product Description

The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.

The screw vacuum pump has a simple structure, but its processing technology requires higher requirements. It must ensure that the height between rotors is parallel, and that between rotors and between rotors and the inner wall of the pump body, there is a very small gap and no friction caused by contact, so as to ensure the realization of gas transmission and reduce gas backflow without the need for oil lubrication and sealing.

This requires that the entire product must be the highest standard from material selection to processing. Because the clearance between components is required to be very small, it is necessary to ensure that the screw and pump body materials are not easy to deform, especially when the temperature changes to a certain value, the locking phenomenon cannot occur due to deformation. Special material treatment shall be selected to ensure the fine processing of all parts. In addition to the fine processing of the 2 screws, dynamic balance correction shall be carried out. The shaft end bearing must be a high-quality special bearing, which not only ensures the parallelism of the screw rotor and is not prone to slight displacement, but also ensures smooth rotation and is not affected by temperature and other factors. When the vacuum pump is working, the clearance between them is small without friction, the operation is stable, the vibration is small, the noise is low, the energy is saved, and the service life is extended. The special screw structure can continuously promote the air flow without compression. The exhaust port is lower than the screw position, the liquid discharge capacity is strong, and it is easy to clean. The pump cavity has short channels, no partitions, and the exhaust and discharge are smooth, so the working efficiency is high, the suction is super strong, and the limit vacuum degree of the pump is greatly improved, It can provide high vacuum ≤ 5Pa or even close to 1Pa; There is no lubrication and pollution in the working chamber, which can provide a clean vacuum without worrying about backflow pollution. Extracts can also be directly recycled or discharged without environmental pressure. Elaborate design, simple structure and precise processing make it more convenient to use and easier to maintain, which is favored by many industry users. It is widely used, not only to extract condensable gas, but also to extract gas containing a large amount of water vapor and a small amount of dust. The specially treated overflow surface can also be used to extract certain corrosive gas, and it is also a special product for oil and gas recovery, solvent recovery, special gas recovery and other industries.
 

Our Advantages

1,Clean and environment-friendly, the working chamber is free of lubricating oil, which is conducive to medium recovery, can obtain clean vacuum, no oil consumption, waste water discharge, and no pollution to the environment.
2,The vacuum degree is high, the limit vacuum degree is ≤ 1Pa, and the pumping capacity in the high vacuum area is large.
3,The anti-corrosion design is optional. The flow passage parts are made of titanium, stainless steel, nano ceramics, spraying NIP alloy and other materials and anti-corrosion coatings.
4,The condensable gas and a small amount of dust gas can be removed, and an automatic purging device is designed.
5,Special shaft seal design prevents mutual pollution between pumped medium and lubricating oil.
6,Variable pitch screw pump saves energy and has low noise.
7,The operation is stable, the rotor is subject to fine dynamic balance test, and the operation vibration is small.
8,High configuration, sealed in Germany, bearing NSK, gear grade 5 grinding.
 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Screw vacuum pump can be configured according to user requirements, or it can use explosion-proof motor with high configuration. Because of its low noise, no oil and no pollution, clean and high vacuum, simple and convenient use, operation and maintenance, it is widely used in oil and gas recovery, vacuum coating, biomedicine, food processing, single crystal furnace, vacuum molding, vacuum smelting, electronic photovoltaic, semiconductor synthesis and many other industries. It can be used as a single pump or as a unit with other pumps.
 

Product Parameters

The dry oil-free screw vacuum pump produced by our company can be divided into air cooling and water cooling according to the vacuum pumping rate, and there are many models for you to choose.

 Air cooling   Dry screw vacuum pump

Type
(Air cooled series)
 Basic parameters 
Pumping speed
(m3/h)
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
(mm)
outlet caliber (mm) Pump head weight
(kg)
noise dB(A) Overall dimension
(length*width*height)
(mm)
LG-10 10 ≤5 0.75 2730 KF16 KF16 30 ≤ 72 655x260x285
LG-20 20 ≤5 1.1 2840 KF25 KF25 55 ≤72 720x305x370
LG-50 50 ≤10 2.2 2850 KF40 KF40 90 ≤75 920x350x420
LG-70 70 ≤30 3 2850 KF40 KF40 110 ≤75 910x390x460
LG-90 90 ≤30 4 2870 KF50 KF50 125 ≤80 1000x410x495

Water cooling Dry screw vacuum pump

 

Type                                                                             Basic parameters
Pumping speed
m3/h
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
mm
outlet caliber mm Cooling water volume
L/min
noise dB(A) Overall dimension
(length*width*height)
mm
LGV-180 180 5 4 2900 40 40 2 < 78 1157x375x734
LGV-250 250 5 5.5 2900 50 40 5.5 <78 1462x417x820
LGV-360 360 5 7.5 2900 50 40 4 W78 1462x455x820
LGV-540 540 5 11 2900 65 50 8 W80 1578x543x860
LGV-720 720 5 15 2900 80 65 10 <80 1623x562x916
LGV-1100 1100 5 22 2900 100 80 14 w 80 1866x598x1050
LG V-1800 1800 5 37 2900 150 100 20 w 80 2092×951 x 1150

Characteristic Curve

 

Detailed Photos

Vacuum pumps are used in oiling machines

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

 New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

 High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

   Product quality wins consumer cooperation

In shipment

ISO 9001

High tech enterprise certificate

  Welcome to send your needs, we will provide you with the best service,

provide the greatest help!!!

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Lifetime Paid Service
Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Customization:
Available

|

screw vane pump

What are the cost considerations when purchasing and maintaining screw vacuum pumps?

When purchasing and maintaining screw vacuum pumps, several cost considerations come into play. Here’s a detailed explanation of the key factors to consider:

1. Initial Purchase Cost:

The initial purchase cost of a screw vacuum pump is an important consideration. The cost can vary depending on factors such as the pump’s capacity, specifications, features, and the manufacturer. Generally, screw vacuum pumps tend to have a higher upfront cost compared to some other types of vacuum pumps. However, it’s essential to evaluate the long-term benefits and performance advantages offered by screw vacuum pumps to determine their overall value for the specific application.

2. Energy Consumption:

Energy consumption is a significant ongoing cost associated with operating screw vacuum pumps. While screw vacuum pumps are known for their high efficiency, it’s important to consider the power requirements and energy consumption of the specific pump model. Opting for energy-efficient screw vacuum pumps can result in long-term cost savings by reducing electricity bills and minimizing the environmental impact. Additionally, pumps equipped with advanced control systems or variable speed drives allow for better energy optimization and can further enhance cost-effectiveness.

3. Maintenance and Service:

Maintenance and service costs are important considerations throughout the lifecycle of a screw vacuum pump. Regular maintenance is necessary to ensure optimal performance, reliability, and longevity of the equipment. The specific maintenance requirements and associated costs can vary depending on the pump model and manufacturer. It’s crucial to follow the manufacturer’s recommended maintenance schedule and guidelines. Some maintenance tasks may include changing seals, replacing filters, inspecting and lubricating bearings, and monitoring performance parameters. Proper maintenance can prevent costly breakdowns, extend the pump’s service life, and minimize unexpected repair expenses.

4. Spare Parts and Consumables:

When budgeting for screw vacuum pumps, it’s important to consider the cost of spare parts and consumables. Over time, certain components of the pump may require replacement, such as seals, gaskets, filters, or lubricants. The availability and cost of these spare parts can vary depending on the pump model and manufacturer. It’s advisable to inquire about the availability, pricing, and expected lifespan of consumables when purchasing the pump and factor these costs into the overall budget.

5. Operational Downtime:

Operational downtime can have significant cost implications for any industrial process. When a screw vacuum pump requires maintenance, repair, or replacement, it may result in downtime, leading to production interruptions, decreased efficiency, and potential revenue loss. Therefore, it’s important to consider the reliability, serviceability, and availability of technical support when choosing a screw vacuum pump. Opting for reputable manufacturers with a track record of providing reliable products and responsive customer support can help minimize operational downtime and mitigate associated costs.

6. Lifecycle Cost Analysis:

When evaluating the cost considerations of screw vacuum pumps, it’s beneficial to conduct a lifecycle cost analysis. This analysis takes into account not only the initial purchase cost but also the long-term operational costs, maintenance expenses, energy consumption, and expected service life of the pump. By considering the total cost of ownership over the pump’s lifespan, including factors like efficiency, reliability, and maintenance requirements, it becomes easier to assess the cost-effectiveness of different pump options and make informed purchasing decisions.

7. Warranty and After-Sales Support:

Considering the warranty and after-sales support offered by the pump manufacturer is essential. A comprehensive warranty can provide cost protection against potential defects or premature failures. Additionally, reliable after-sales support, technical assistance, and readily available spare parts can contribute to minimizing downtime, reducing repair costs, and ensuring the long-term performance of the screw vacuum pump.

In summary, the cost considerations when purchasing and maintaining screw vacuum pumps include the initial purchase cost, energy consumption, maintenance and service expenses, spare parts and consumables, operational downtime, lifecycle cost analysis, and warranty and after-sales support. By carefully evaluating these factors and assessing the specific needs of the application, businesses can make informed decisions to optimize cost-effectiveness and achieve reliable vacuum pump performance.

screw vane pump

What safety features should be considered when operating screw vacuum pumps?

When operating screw vacuum pumps, it is important to consider several safety features to ensure the protection of personnel, equipment, and the surrounding environment. Here’s a detailed explanation of the safety features that should be considered:

1. Overpressure Protection:

Screw vacuum pumps should be equipped with overpressure protection mechanisms to prevent the system from exceeding safe pressure limits. This can include pressure relief valves or rupture discs that automatically release excess pressure to avoid equipment damage or catastrophic failures. It is essential to set the pressure relief devices at appropriate levels and regularly inspect and maintain them to ensure their proper functioning.

2. Emergency Stop Button:

An emergency stop button should be easily accessible near the screw vacuum pump or within the control panel. This allows operators to quickly shut down the pump in case of emergencies, such as equipment malfunction, safety hazards, or personnel injury. The emergency stop button should be clearly labeled, well-maintained, and tested regularly to ensure its effectiveness.

3. Motor and Drive Protections:

The motor and drive system of the screw vacuum pump should be equipped with safety features to prevent overheating, overloading, and electrical faults. This can include thermal overload protection, motor temperature sensors, current monitoring devices, and short-circuit protection mechanisms. These safety features help safeguard the integrity of the motor and drive system, reducing the risk of fire, electrical hazards, and equipment damage.

4. Vacuum Level Monitoring:

Monitoring the vacuum level is crucial for safe operation. Screw vacuum pumps should be equipped with vacuum gauges or sensors to provide real-time information on the vacuum level. This allows operators to ensure that the system is operating within the desired range and helps detect any abnormal conditions or leaks. Alarms or visual indicators can also be implemented to alert operators when the vacuum level deviates from the set parameters.

5. Cooling and Ventilation:

Screw vacuum pumps generate heat during operation, and adequate cooling and ventilation systems should be in place to prevent overheating. This can include fans, heat exchangers, or cooling fins to dissipate heat effectively. Proper ventilation should be ensured to prevent the accumulation of flammable or hazardous gases. It is important to regularly inspect the cooling and ventilation systems and clean or replace components as needed to maintain optimal performance and safety.

6. Isolation and Lockout/Tagout:

Isolation valves should be installed in the suction and discharge lines of screw vacuum pumps to allow for safe maintenance, repair, or shutdown procedures. Lockout/Tagout (LOTO) procedures should be followed when performing maintenance or service activities. This involves locking and tagging the energy sources, such as electrical power or compressed air, to prevent accidental startup or release of stored energy. Adequate training and awareness of LOTO procedures are essential for personnel safety.

7. Safety Signage and Labels:

Clear and visible safety signage and labels should be placed near the screw vacuum pump and control panel to provide important safety information, warnings, and operating instructions. This includes labels for emergency stop buttons, voltage ratings, hazardous areas, and safety precautions. Safety signs should comply with relevant standards and regulations and be regularly inspected to ensure their visibility and legibility.

8. Operator Training and PPE:

Proper training should be provided to operators working with screw vacuum pumps to ensure they understand the safe operating procedures, potential hazards, and emergency protocols. Operators should also wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and hearing protection, as required by the specific operating conditions and industry regulations.

In summary, several safety features should be considered when operating screw vacuum pumps. These include overpressure protection, emergency stop buttons, motor and drive protections, vacuum level monitoring, cooling and ventilation systems, isolation and lockout/tagout procedures, safety signage, operator training, and the use of personal protective equipment. Implementing these safety features helps mitigate risks, protect personnel and equipment, and maintain a safe working environment during screw vacuum pump operation.

screw vane pump

Can screw vacuum pumps handle both dry and wet processes?

Yes, screw vacuum pumps are capable of handling both dry and wet processes, making them versatile for a wide range of applications. The ability to handle both types of processes depends on the specific design and configuration of the screw vacuum pump, as well as any additional features or accessories that may be incorporated. Here’s a detailed explanation:

Dry Processes:

In dry processes, the screw vacuum pump operates without the presence of liquid or moisture. Dry screw vacuum pumps rely on tight clearances between the rotors (screws) and the pump housing to create an effective seal. This seal prevents gas or vapor from leaking back into the inlet or escaping to the atmosphere. The absence of liquid or moisture in the process stream helps maintain the integrity of the pump’s sealing mechanism and ensures reliable operation. Dry screw vacuum pumps are commonly used in applications where the process gas or vapor is predominantly dry and free from liquid carryover or condensable vapors.

Wet Processes:

In wet processes, the screw vacuum pump encounters liquids or moisture along with gas or vapor. These liquids can be in the form of condensable vapors, liquid carryover, or entrained liquid droplets. To handle wet processes, screw vacuum pumps may incorporate additional features or accessories to prevent damage, maintain performance, and ensure reliable operation. Some common methods used to handle wet processes include:

  • Liquid Seals: Certain screw vacuum pump designs utilize a liquid sealant to create a barrier between the process gas or vapor and the pump’s internal components. The liquid sealant helps prevent gas leakage, provides lubrication, and assists in sealing the clearances between the rotors and housing. This feature enables the pump to handle wet processes effectively by containing the liquid and maintaining proper sealing.
  • Separators and Filters: Screw vacuum pumps can be equipped with separators and filters to separate liquid droplets or solid particles from the gas or vapor stream. These components help protect the pump from potential damage caused by liquid or solid contamination and ensure the efficient operation of the pump.
  • Specific Design Considerations: Screw vacuum pump manufacturers may incorporate design modifications to enhance the pump’s ability to handle wet processes. This can include optimized clearances, corrosion-resistant materials, and specialized coatings or treatments to protect against liquid or moisture exposure.

It’s important to note that the specific capabilities of a screw vacuum pump in handling wet processes may vary between different models and manufacturers. Therefore, when selecting a screw vacuum pump for a wet process application, it is advisable to consult the manufacturer’s specifications, recommendations, and any additional guidance provided to ensure the pump is suitable for the intended process conditions.

In summary, screw vacuum pumps can handle both dry and wet processes, although the specific design and features of the pump may need to be considered for optimal performance in wet applications. Dry screw vacuum pumps are suitable for predominantly dry processes, while wet processes may require the use of liquid seals, separators, filters, or specialized design considerations to handle the presence of liquids or moisture effectively.

China Hot selling LG 50 2.2kw 50m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   vacuum pump diyChina Hot selling LG 50 2.2kw 50m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   vacuum pump diy
editor by CX 2024-04-09

China manufacturer LG 20 1.1kw 20m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation with high quality

Product Description

 

Product Description

The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.

The screw vacuum pump has a simple structure, but its processing technology requires higher requirements. It must ensure that the height between rotors is parallel, and that between rotors and between rotors and the inner wall of the pump body, there is a very small gap and no friction caused by contact, so as to ensure the realization of gas transmission and reduce gas backflow without the need for oil lubrication and sealing.

This requires that the entire product must be the highest standard from material selection to processing. Because the clearance between components is required to be very small, it is necessary to ensure that the screw and pump body materials are not easy to deform, especially when the temperature changes to a certain value, the locking phenomenon cannot occur due to deformation. Special material treatment shall be selected to ensure the fine processing of all parts. In addition to the fine processing of the 2 screws, dynamic balance correction shall be carried out. The shaft end bearing must be a high-quality special bearing, which not only ensures the parallelism of the screw rotor and is not prone to slight displacement, but also ensures smooth rotation and is not affected by temperature and other factors. When the vacuum pump is working, the clearance between them is small without friction, the operation is stable, the vibration is small, the noise is low, the energy is saved, and the service life is extended. The special screw structure can continuously promote the air flow without compression. The exhaust port is lower than the screw position, the liquid discharge capacity is strong, and it is easy to clean. The pump cavity has short channels, no partitions, and the exhaust and discharge are smooth, so the working efficiency is high, the suction is super strong, and the limit vacuum degree of the pump is greatly improved, It can provide high vacuum ≤ 5Pa or even close to 1Pa; There is no lubrication and pollution in the working chamber, which can provide a clean vacuum without worrying about backflow pollution. Extracts can also be directly recycled or discharged without environmental pressure. Elaborate design, simple structure and precise processing make it more convenient to use and easier to maintain, which is favored by many industry users. It is widely used, not only to extract condensable gas, but also to extract gas containing a large amount of water vapor and a small amount of dust. The specially treated overflow surface can also be used to extract certain corrosive gas, and it is also a special product for oil and gas recovery, solvent recovery, special gas recovery and other industries.
 

Our Advantages

1,Clean and environment-friendly, the working chamber is free of lubricating oil, which is conducive to medium recovery, can obtain clean vacuum, no oil consumption, waste water discharge, and no pollution to the environment.
2,The vacuum degree is high, the limit vacuum degree is ≤ 1Pa, and the pumping capacity in the high vacuum area is large.
3,The anti-corrosion design is optional. The flow passage parts are made of titanium, stainless steel, nano ceramics, spraying NIP alloy and other materials and anti-corrosion coatings.
4,The condensable gas and a small amount of dust gas can be removed, and an automatic purging device is designed.
5,Special shaft seal design prevents mutual pollution between pumped medium and lubricating oil.
6,Variable pitch screw pump saves energy and has low noise.
7,The operation is stable, the rotor is subject to fine dynamic balance test, and the operation vibration is small.
8,High configuration, sealed in Germany, bearing NSK, gear grade 5 grinding.
 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Screw vacuum pump can be configured according to user requirements, or it can use explosion-proof motor with high configuration. Because of its low noise, no oil and no pollution, clean and high vacuum, simple and convenient use, operation and maintenance, it is widely used in oil and gas recovery, vacuum coating, biomedicine, food processing, single crystal furnace, vacuum molding, vacuum smelting, electronic photovoltaic, semiconductor synthesis and many other industries. It can be used as a single pump or as a unit with other pumps.
 

Product Parameters

The dry oil-free screw vacuum pump produced by our company can be divided into air cooling and water cooling according to the vacuum pumping rate, and there are many models for you to choose.

 Air cooling   Dry screw vacuum pump

Type
(Air cooled series)
 Basic parameters 
Pumping speed
(m3/h)
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
(mm)
outlet caliber (mm) Pump head weight
(kg)
noise dB(A) Overall dimension
(length*width*height)
(mm)
LG-10 10 ≤5 0.75 2730 KF16 KF16 30 ≤ 72 655x260x285
LG-20 20 ≤5 1.1 2840 KF25 KF25 55 ≤72 720x305x370
LG-50 50 ≤10 2.2 2850 KF40 KF40 90 ≤75 920x350x420
LG-70 70 ≤30 3 2850 KF40 KF40 110 ≤75 910x390x460
LG-90 90 ≤30 4 2870 KF50 KF50 125 ≤80 1000x410x495

Water cooling Dry screw vacuum pump

 

Type                                                                             Basic parameters
Pumping speed
m3/h
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
mm
outlet caliber mm Cooling water volume
L/min
noise dB(A) Overall dimension
(length*width*height)
mm
LGV-180 180 5 4 2900 40 40 2 < 78 1157x375x734
LGV-250 250 5 5.5 2900 50 40 5.5 <78 1462x417x820
LGV-360 360 5 7.5 2900 50 40 4 W78 1462x455x820
LGV-540 540 5 11 2900 65 50 8 W80 1578x543x860
LGV-720 720 5 15 2900 80 65 10 <80 1623x562x916
LGV-1100 1100 5 22 2900 100 80 14 w 80 1866x598x1050
LG V-1800 1800 5 37 2900 150 100 20 w 80 2092×951 x 1150

Characteristic Curve

 

Detailed Photos

Vacuum pumps are used in oiling machines

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

 New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

 High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

   Product quality wins consumer cooperation

In shipment

ISO 9001

High tech enterprise certificate

  Welcome to send your needs, we will provide you with the best service,

provide the greatest help!!!

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump
Customization:
Available

|

screw vane pump

What are the cost considerations when purchasing and maintaining screw vacuum pumps?

When purchasing and maintaining screw vacuum pumps, several cost considerations come into play. Here’s a detailed explanation of the key factors to consider:

1. Initial Purchase Cost:

The initial purchase cost of a screw vacuum pump is an important consideration. The cost can vary depending on factors such as the pump’s capacity, specifications, features, and the manufacturer. Generally, screw vacuum pumps tend to have a higher upfront cost compared to some other types of vacuum pumps. However, it’s essential to evaluate the long-term benefits and performance advantages offered by screw vacuum pumps to determine their overall value for the specific application.

2. Energy Consumption:

Energy consumption is a significant ongoing cost associated with operating screw vacuum pumps. While screw vacuum pumps are known for their high efficiency, it’s important to consider the power requirements and energy consumption of the specific pump model. Opting for energy-efficient screw vacuum pumps can result in long-term cost savings by reducing electricity bills and minimizing the environmental impact. Additionally, pumps equipped with advanced control systems or variable speed drives allow for better energy optimization and can further enhance cost-effectiveness.

3. Maintenance and Service:

Maintenance and service costs are important considerations throughout the lifecycle of a screw vacuum pump. Regular maintenance is necessary to ensure optimal performance, reliability, and longevity of the equipment. The specific maintenance requirements and associated costs can vary depending on the pump model and manufacturer. It’s crucial to follow the manufacturer’s recommended maintenance schedule and guidelines. Some maintenance tasks may include changing seals, replacing filters, inspecting and lubricating bearings, and monitoring performance parameters. Proper maintenance can prevent costly breakdowns, extend the pump’s service life, and minimize unexpected repair expenses.

4. Spare Parts and Consumables:

When budgeting for screw vacuum pumps, it’s important to consider the cost of spare parts and consumables. Over time, certain components of the pump may require replacement, such as seals, gaskets, filters, or lubricants. The availability and cost of these spare parts can vary depending on the pump model and manufacturer. It’s advisable to inquire about the availability, pricing, and expected lifespan of consumables when purchasing the pump and factor these costs into the overall budget.

5. Operational Downtime:

Operational downtime can have significant cost implications for any industrial process. When a screw vacuum pump requires maintenance, repair, or replacement, it may result in downtime, leading to production interruptions, decreased efficiency, and potential revenue loss. Therefore, it’s important to consider the reliability, serviceability, and availability of technical support when choosing a screw vacuum pump. Opting for reputable manufacturers with a track record of providing reliable products and responsive customer support can help minimize operational downtime and mitigate associated costs.

6. Lifecycle Cost Analysis:

When evaluating the cost considerations of screw vacuum pumps, it’s beneficial to conduct a lifecycle cost analysis. This analysis takes into account not only the initial purchase cost but also the long-term operational costs, maintenance expenses, energy consumption, and expected service life of the pump. By considering the total cost of ownership over the pump’s lifespan, including factors like efficiency, reliability, and maintenance requirements, it becomes easier to assess the cost-effectiveness of different pump options and make informed purchasing decisions.

7. Warranty and After-Sales Support:

Considering the warranty and after-sales support offered by the pump manufacturer is essential. A comprehensive warranty can provide cost protection against potential defects or premature failures. Additionally, reliable after-sales support, technical assistance, and readily available spare parts can contribute to minimizing downtime, reducing repair costs, and ensuring the long-term performance of the screw vacuum pump.

In summary, the cost considerations when purchasing and maintaining screw vacuum pumps include the initial purchase cost, energy consumption, maintenance and service expenses, spare parts and consumables, operational downtime, lifecycle cost analysis, and warranty and after-sales support. By carefully evaluating these factors and assessing the specific needs of the application, businesses can make informed decisions to optimize cost-effectiveness and achieve reliable vacuum pump performance.

screw vane pump

Can screw vacuum pumps be used for vacuum packaging and sealing processes?

Yes, screw vacuum pumps can be used for vacuum packaging and sealing processes. Screw vacuum pumps offer several advantages that make them suitable for these applications. Here’s a detailed explanation:

1. Efficient Evacuation:

Screw vacuum pumps are known for their high pumping speed, which allows them to quickly evacuate the packaging chamber. By removing air and other gases from the packaging environment, screw vacuum pumps create the necessary vacuum conditions for packaging and sealing processes.

2. Consistent Vacuum Levels:

Screw vacuum pumps are capable of maintaining consistent vacuum levels throughout the packaging and sealing process. This is important to ensure reliable and uniform packaging results. The stable vacuum levels achieved by screw vacuum pumps help preserve product quality, extend shelf life, and prevent spoilage or degradation of packaged goods.

3. Control and Automation:

Screw vacuum pumps can be easily integrated into packaging and sealing systems, allowing for precise control and automation of the vacuum process. They can be equipped with sensors, controllers, and programmable logic controllers (PLCs) to monitor and adjust the vacuum levels, packaging parameters, and sealing operations. This enables efficient and repeatable packaging processes.

4. Versatility:

Screw vacuum pumps are versatile and can handle a wide range of packaging materials, including flexible pouches, bags, trays, and rigid containers. They can accommodate different sizes and shapes of packaging, making them suitable for various industries such as food and beverage, pharmaceuticals, electronics, and consumer goods.

5. Oil-Free Operation:

Many screw vacuum pumps are designed to operate without the use of lubricating oil or fluids. This oil-free operation eliminates the risk of oil contamination in the packaging process, making them particularly suitable for applications where cleanliness and hygiene are crucial, such as in the food industry or medical packaging.

6. Reliability and Durability:

Screw vacuum pumps are known for their robust construction and reliable performance. They are designed to handle continuous operation and can withstand the demanding conditions of packaging and sealing processes, including frequent start-stop cycles and exposure to moisture, dust, or other contaminants.

7. Cost-Effectiveness:

Using screw vacuum pumps for vacuum packaging and sealing processes can be cost-effective in the long run. They offer energy-efficient operation, low maintenance requirements, and long service life, resulting in reduced operating costs and improved productivity.

In summary, screw vacuum pumps are well-suited for vacuum packaging and sealing processes. Their efficient evacuation capabilities, ability to maintain consistent vacuum levels, control and automation features, versatility, oil-free operation, reliability, and cost-effectiveness make them a valuable choice for a wide range of industries that require vacuum packaging and sealing of products.

screw vane pump

Can screw vacuum pumps handle both dry and wet processes?

Yes, screw vacuum pumps are capable of handling both dry and wet processes, making them versatile for a wide range of applications. The ability to handle both types of processes depends on the specific design and configuration of the screw vacuum pump, as well as any additional features or accessories that may be incorporated. Here’s a detailed explanation:

Dry Processes:

In dry processes, the screw vacuum pump operates without the presence of liquid or moisture. Dry screw vacuum pumps rely on tight clearances between the rotors (screws) and the pump housing to create an effective seal. This seal prevents gas or vapor from leaking back into the inlet or escaping to the atmosphere. The absence of liquid or moisture in the process stream helps maintain the integrity of the pump’s sealing mechanism and ensures reliable operation. Dry screw vacuum pumps are commonly used in applications where the process gas or vapor is predominantly dry and free from liquid carryover or condensable vapors.

Wet Processes:

In wet processes, the screw vacuum pump encounters liquids or moisture along with gas or vapor. These liquids can be in the form of condensable vapors, liquid carryover, or entrained liquid droplets. To handle wet processes, screw vacuum pumps may incorporate additional features or accessories to prevent damage, maintain performance, and ensure reliable operation. Some common methods used to handle wet processes include:

  • Liquid Seals: Certain screw vacuum pump designs utilize a liquid sealant to create a barrier between the process gas or vapor and the pump’s internal components. The liquid sealant helps prevent gas leakage, provides lubrication, and assists in sealing the clearances between the rotors and housing. This feature enables the pump to handle wet processes effectively by containing the liquid and maintaining proper sealing.
  • Separators and Filters: Screw vacuum pumps can be equipped with separators and filters to separate liquid droplets or solid particles from the gas or vapor stream. These components help protect the pump from potential damage caused by liquid or solid contamination and ensure the efficient operation of the pump.
  • Specific Design Considerations: Screw vacuum pump manufacturers may incorporate design modifications to enhance the pump’s ability to handle wet processes. This can include optimized clearances, corrosion-resistant materials, and specialized coatings or treatments to protect against liquid or moisture exposure.

It’s important to note that the specific capabilities of a screw vacuum pump in handling wet processes may vary between different models and manufacturers. Therefore, when selecting a screw vacuum pump for a wet process application, it is advisable to consult the manufacturer’s specifications, recommendations, and any additional guidance provided to ensure the pump is suitable for the intended process conditions.

In summary, screw vacuum pumps can handle both dry and wet processes, although the specific design and features of the pump may need to be considered for optimal performance in wet applications. Dry screw vacuum pumps are suitable for predominantly dry processes, while wet processes may require the use of liquid seals, separators, filters, or specialized design considerations to handle the presence of liquids or moisture effectively.

China manufacturer LG 20 1.1kw 20m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   with high quality China manufacturer LG 20 1.1kw 20m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   with high quality
editor by CX 2024-04-09

China Professional Air Cooled Screw Vacuum Pump for Oil and Gas Recovery vacuum pump electric

Product Description

 

Product Description

Dry screw vacuum pump, is the use of a pair of screw, made in the pump shell synchronous high-speed reverse rotation of the effects of the suction and exhaust and suction device, 2 screw fine dynamic balancing correction, and is supported by bearings, is installed in the pump shell, between screw and screw has a certain gap, so the pump work, no friction between each other, smooth running, low noise, Working chamber without lubricating oil, therefore, dry screw pump can remove a lot of steam and a small amount of dust gas occasions, higher limit vacuum, lower power consumption, energy saving, maintenance-free and other advantages.

Our Advantages

There is no medium in the working chamber, which can obtain a clean vacuum.
. No clearance between rotating parts, high speed operation, small overall volume.

There is no compression in the gas, suitable for extraction of coagulable gas.

Can remove a lot of steam and a small amount of dust gas occasions.
. High vacuum, the ultimate vacuum up to 1 Pa.

Screw material is high strength special material, material density, wear resistance, stable performance.

No friction rotating parts, low noise.
. Simple structure, convenient maintenance.
Wider range of use: corrosive environment can be used.

No oil consumption, no water.

Pump gas directly discharged from the pump body, no pollution of water, no environmental pressure, more convenient gas recovery.

It can be composed of oil-free unit with Roots pump and molecular pump.

 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Product Parameters

Type                                                                             Basic parameters
Pumping speed
m3/h
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
mm
outlet caliber mm Cooling water volume
L/min
noise dB(A) Overall dimension
(length*width*height)
mm
LGV-180 180 5 4 2900 40 40 2 < 78 1157x375x734
LGV-250 250 5 5.5 2900 50 40 5.5 <78 1462x417x820
LGV-360 360 5 7.5 2900 50 40 4 W78 1462x455x820
LGV-540 540 5 11 2900 65 50 8 W80 1578x543x860
LGV-720 720 5 15 2900 80 65 10 <80 1623x562x916
LGV-1100 1100 5 22 2900 100 80 14 w 80 1866x598x1050
LG V-1800 1800 5 37 2900 150 100 20 w 80 2092×951 x 1150

Characteristic Curve

 

Detailed Photos

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

The company cooperates with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents. Adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.
 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Lifetime Paid Service
Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Customization:
Available

|

screw vane pump

Are there environmentally friendly options for screw vacuum pumps?

Yes, there are environmentally friendly options available for screw vacuum pumps. Here’s a detailed explanation of the eco-friendly features and considerations associated with screw vacuum pumps:

1. Oil-Free Operation:

One of the key environmentally friendly features of screw vacuum pumps is their ability to operate without the use of oil. Traditional vacuum pumps, such as rotary vane pumps or liquid ring pumps, often require oil for lubrication and sealing. However, oil-free screw vacuum pumps eliminate the need for oil, resulting in cleaner and more environmentally friendly operation. Oil-free pumps can be particularly beneficial in applications where the pumped gases come into direct contact with the process or need to remain free from oil contamination.

2. Reduced Emissions:

Screw vacuum pumps contribute to reduced emissions compared to certain other types of pumps. By eliminating oil from the operation, there is no risk of oil carryover or vapor emissions that could adversely affect the environment. This is especially important in applications where the pumped gases contain volatile compounds, as oil-free screw vacuum pumps help prevent the release of harmful substances into the atmosphere. Additionally, screw vacuum pumps with built-in gas and vapor ballast options can further reduce emissions by facilitating the extraction of condensable vapors and preventing their release into the environment.

3. Energy Efficiency:

Energy efficiency is a crucial factor in environmentally friendly operation. Screw vacuum pumps are known for their high efficiency, which translates into reduced energy consumption. By minimizing power requirements, energy-efficient screw vacuum pumps help conserve energy and lower greenhouse gas emissions. Choosing pumps with advanced control systems, variable speed drives, or frequency converters can further enhance energy efficiency by allowing precise control and optimization of pump performance based on demand.

4. Noise Reduction:

Screw vacuum pumps often have quieter operation compared to certain other types of pumps. The design of screw pumps, with balanced rotors and reduced internal clearances, helps minimize noise and vibration. Reduced noise levels not only contribute to a more comfortable and quieter working environment but also have positive environmental implications by minimizing noise pollution in surrounding areas.

5. Long Service Life and Durability:

Screw vacuum pumps are typically built with durable materials and have a robust design, resulting in a long service life. Prolonged equipment lifespan reduces the need for frequent replacements, minimizing waste generation and the environmental impact of manufacturing new pumps. Additionally, the durability of screw vacuum pumps translates into fewer maintenance requirements and less material consumption over time.

6. Waste Management:

When it comes to waste management, screw vacuum pumps offer advantages such as reduced oil disposal requirements. Unlike oil-sealed pumps that require regular oil changes and proper disposal of used oil, oil-free screw vacuum pumps eliminate this waste stream. This simplifies waste management processes and reduces the potential environmental hazards associated with oil handling and disposal.

7. Compliance with Environmental Regulations:

Many screw vacuum pump manufacturers prioritize environmental responsibility and design their products to comply with relevant environmental regulations and standards. These may include requirements for energy efficiency, emissions control, noise levels, and material restrictions. By choosing pumps from reputable manufacturers that prioritize environmental considerations, users can ensure the equipment meets or exceeds the necessary environmental compliance requirements.

In summary, environmentally friendly options for screw vacuum pumps include oil-free operation, reduced emissions, energy efficiency, noise reduction, long service life and durability, waste management advantages, and compliance with environmental regulations. By opting for these eco-friendly features, industries can minimize their environmental footprint and contribute to sustainable practices.

screw vane pump

What is the range of vacuum levels that screw vacuum pumps can achieve?

Screw vacuum pumps are capable of achieving a wide range of vacuum levels, depending on the specific design and operating characteristics of the pump. Here is a detailed explanation of the typical range of vacuum levels that screw vacuum pumps can achieve:

1. Low Vacuum:

Screw vacuum pumps can operate in the low vacuum range, typically defined as vacuum levels between atmospheric pressure (760 torr) and around 1 torr. In this range, screw vacuum pumps can efficiently handle applications that require moderate vacuum levels, such as packaging, drying processes, and general industrial applications.

2. Medium Vacuum:

Screw vacuum pumps are also suitable for medium vacuum applications, which typically range from about 1 torr down to approximately 10^-3 torr (or 0.001 torr). In this range, screw vacuum pumps offer reliable performance and can be used in various industries and processes, including chemical processing, vacuum distillation, freeze drying, and composite manufacturing.

3. High Vacuum:

While screw vacuum pumps are not typically used for achieving ultra-high vacuum levels, they can still operate in the high vacuum range. High vacuum is generally defined as vacuum levels below 10^-3 torr (or 0.001 torr) down to around 10^-6 torr (or 0.000001 torr). Screw vacuum pumps can be employed in high vacuum applications where slightly higher pressures are acceptable, such as in research laboratories, vacuum coating, and some semiconductor manufacturing processes.

It’s important to note that the achievable vacuum levels may vary depending on factors such as the specific design and size of the screw vacuum pump, the gas composition being pumped, system conductance, and the presence of any leaks or contaminants in the vacuum system. Additionally, the performance of a screw vacuum pump may also be influenced by the process conditions and the specific application requirements.

In summary, screw vacuum pumps can achieve vacuum levels ranging from low vacuum (around 1 torr) to medium vacuum (down to approximately 10^-3 torr) and can also operate in the high vacuum range (below 10^-3 torr). The appropriate range of vacuum level for a specific application should be determined based on the process requirements, industry standards, and the capabilities of the screw vacuum pump.

screw vane pump

Can screw vacuum pumps handle both dry and wet processes?

Yes, screw vacuum pumps are capable of handling both dry and wet processes, making them versatile for a wide range of applications. The ability to handle both types of processes depends on the specific design and configuration of the screw vacuum pump, as well as any additional features or accessories that may be incorporated. Here’s a detailed explanation:

Dry Processes:

In dry processes, the screw vacuum pump operates without the presence of liquid or moisture. Dry screw vacuum pumps rely on tight clearances between the rotors (screws) and the pump housing to create an effective seal. This seal prevents gas or vapor from leaking back into the inlet or escaping to the atmosphere. The absence of liquid or moisture in the process stream helps maintain the integrity of the pump’s sealing mechanism and ensures reliable operation. Dry screw vacuum pumps are commonly used in applications where the process gas or vapor is predominantly dry and free from liquid carryover or condensable vapors.

Wet Processes:

In wet processes, the screw vacuum pump encounters liquids or moisture along with gas or vapor. These liquids can be in the form of condensable vapors, liquid carryover, or entrained liquid droplets. To handle wet processes, screw vacuum pumps may incorporate additional features or accessories to prevent damage, maintain performance, and ensure reliable operation. Some common methods used to handle wet processes include:

  • Liquid Seals: Certain screw vacuum pump designs utilize a liquid sealant to create a barrier between the process gas or vapor and the pump’s internal components. The liquid sealant helps prevent gas leakage, provides lubrication, and assists in sealing the clearances between the rotors and housing. This feature enables the pump to handle wet processes effectively by containing the liquid and maintaining proper sealing.
  • Separators and Filters: Screw vacuum pumps can be equipped with separators and filters to separate liquid droplets or solid particles from the gas or vapor stream. These components help protect the pump from potential damage caused by liquid or solid contamination and ensure the efficient operation of the pump.
  • Specific Design Considerations: Screw vacuum pump manufacturers may incorporate design modifications to enhance the pump’s ability to handle wet processes. This can include optimized clearances, corrosion-resistant materials, and specialized coatings or treatments to protect against liquid or moisture exposure.

It’s important to note that the specific capabilities of a screw vacuum pump in handling wet processes may vary between different models and manufacturers. Therefore, when selecting a screw vacuum pump for a wet process application, it is advisable to consult the manufacturer’s specifications, recommendations, and any additional guidance provided to ensure the pump is suitable for the intended process conditions.

In summary, screw vacuum pumps can handle both dry and wet processes, although the specific design and features of the pump may need to be considered for optimal performance in wet applications. Dry screw vacuum pumps are suitable for predominantly dry processes, while wet processes may require the use of liquid seals, separators, filters, or specialized design considerations to handle the presence of liquids or moisture effectively.

China Professional Air Cooled Screw Vacuum Pump for Oil and Gas Recovery   vacuum pump electricChina Professional Air Cooled Screw Vacuum Pump for Oil and Gas Recovery   vacuum pump electric
editor by CX 2024-04-08

China high quality Air Cooled Screw Vacuum Pumps for Brick, Ceramic Manufacturing vacuum pump brakes

Product Description

Product Description

Dry screw vacuum pump, is the use of a pair of screw, made in the pump shell synchronous high-speed reverse rotation of the effects of the suction and exhaust and suction device, 2 screw fine dynamic balancing correction, and is supported by bearings, is installed in the pump shell, between screw and screw has a certain gap, so the pump work, no friction between each other, smooth running, low noise, Working chamber without lubricating oil, therefore, dry screw pump can remove a lot of steam and a small amount of dust gas occasions, higher limit vacuum, lower power consumption, energy saving, maintenance-free and other advantages.

Our Advantages

There is no medium in the working chamber, which can obtain a clean vacuum.
. No clearance between rotating parts, high speed operation, small overall volume.

There is no compression in the gas, suitable for extraction of coagulable gas.

Can remove a lot of steam and a small amount of dust gas occasions.
. High vacuum, the ultimate vacuum up to 1 Pa.

Screw material is high strength special material, material density, wear resistance, stable performance.

No friction rotating parts, low noise.
. Simple structure, convenient maintenance.
Wider range of use: corrosive environment can be used.

No oil consumption, no water.

Pump gas directly discharged from the pump body, no pollution of water, no environmental pressure, more convenient gas recovery.

It can be composed of oil-free unit with Roots pump and molecular pump.

 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Product Parameters

Type                                                                             Basic parameters
Pumping speed
m3/h
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
mm
outlet caliber mm Cooling water volume
L/min
noise dB(A) Overall dimension
(length*width*height)
mm
LGV-180 180 5 4 2900 40 40 2 < 78 1157x375x734
LGV-250 250 5 5.5 2900 50 40 5.5 <78 1462x417x820
LGV-360 360 5 7.5 2900 50 40 4 W78 1462x455x820
LGV-540 540 5 11 2900 65 50 8 W80 1578x543x860
LGV-720 720 5 15 2900 80 65 10 <80 1623x562x916
LGV-1100 1100 5 22 2900 100 80 14 w 80 1866x598x1050
LG V-1800 1800 5 37 2900 150 100 20 w 80 2092×951 x 1150

Characteristic Curve

 

Detailed Photos

 

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

The company cooperates with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents. Adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.
 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Lifetime Paid Service
Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Customization:
Available

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screw vane pump

Can screw vacuum pumps be used in food processing and packaging industries?

Yes, screw vacuum pumps can be used in food processing and packaging industries. Here’s a detailed explanation of their suitability and applications in these industries:

1. Vacuum Packaging:

Screw vacuum pumps are commonly used in vacuum packaging applications within the food industry. Vacuum packaging helps extend the shelf life of food products by removing air from the packaging, reducing spoilage, and preserving freshness. Screw vacuum pumps create the necessary vacuum environment by efficiently evacuating air from the packaging containers or bags. Their oil-free operation ensures that there is no risk of oil contamination in the packaged food, making them ideal for maintaining food quality and safety standards.

2. Food Processing:

Screw vacuum pumps are also suitable for various food processing applications. They can be used in processes such as deaeration, freeze drying, and evaporation. In deaeration processes, screw vacuum pumps efficiently remove air and gases from food mixtures, improving the quality and texture of the final product. In freeze drying, screw vacuum pumps facilitate the removal of moisture from frozen food products, preserving their nutritional value and extending their shelf life. Similarly, in evaporation processes, screw vacuum pumps help create the necessary vacuum conditions for concentrating liquids and reducing their volume, such as in the production of fruit juices or dairy products.

3. Sanitary Design:

Screw vacuum pumps designed for food processing and packaging industries often incorporate sanitary features to meet strict hygiene standards. These pumps are constructed with materials that are resistant to corrosion and can withstand frequent cleaning and sterilization processes. They may also have smooth surfaces, rounded edges, and minimal crevices to prevent the accumulation of food particles or bacteria. Sanitary design ensures compliance with food safety regulations and facilitates easy cleaning, reducing the risk of contamination and ensuring the integrity of the food products.

4. Contamination Prevention:

The oil-free operation of screw vacuum pumps is particularly advantageous in food processing and packaging industries. Since oil-free pumps eliminate the risk of oil contamination, they are suitable for processes where maintaining the purity and quality of food products is critical. Oil contamination can affect the taste, odor, and overall quality of food items. By using oil-free screw vacuum pumps, manufacturers can ensure that their products remain uncontaminated and meet the required food safety standards.

5. Efficiency and Reliability:

Screw vacuum pumps are known for their efficiency and reliability. They offer consistent performance and can handle varying load demands effectively. This is beneficial in food processing and packaging industries, where the production volumes can vary, and reliable vacuum generation is crucial. The robust design and low maintenance requirements of screw vacuum pumps contribute to their overall reliability, minimizing downtime and ensuring continuous operation in food processing and packaging facilities.

6. Compliance with Regulations:

Screw vacuum pumps designed for food processing and packaging industries are often manufactured to comply with relevant regulations and standards. These pumps may adhere to guidelines such as the Food and Drug Administration (FDA) regulations or the European Hygienic Engineering and Design Group (EHEDG) standards. Compliance with these regulations ensures that the equipment meets the necessary hygiene and safety requirements for food processing and packaging applications.

In summary, screw vacuum pumps can be effectively used in food processing and packaging industries. Their applications include vacuum packaging, food processing processes like deaeration, freeze drying, and evaporation. With their sanitary design, contamination prevention capabilities, efficiency, reliability, and compliance with regulations, screw vacuum pumps offer reliable and safe vacuum solutions for the food industry.

screw vane pump

Can screw vacuum pumps be used for vacuum packaging and sealing processes?

Yes, screw vacuum pumps can be used for vacuum packaging and sealing processes. Screw vacuum pumps offer several advantages that make them suitable for these applications. Here’s a detailed explanation:

1. Efficient Evacuation:

Screw vacuum pumps are known for their high pumping speed, which allows them to quickly evacuate the packaging chamber. By removing air and other gases from the packaging environment, screw vacuum pumps create the necessary vacuum conditions for packaging and sealing processes.

2. Consistent Vacuum Levels:

Screw vacuum pumps are capable of maintaining consistent vacuum levels throughout the packaging and sealing process. This is important to ensure reliable and uniform packaging results. The stable vacuum levels achieved by screw vacuum pumps help preserve product quality, extend shelf life, and prevent spoilage or degradation of packaged goods.

3. Control and Automation:

Screw vacuum pumps can be easily integrated into packaging and sealing systems, allowing for precise control and automation of the vacuum process. They can be equipped with sensors, controllers, and programmable logic controllers (PLCs) to monitor and adjust the vacuum levels, packaging parameters, and sealing operations. This enables efficient and repeatable packaging processes.

4. Versatility:

Screw vacuum pumps are versatile and can handle a wide range of packaging materials, including flexible pouches, bags, trays, and rigid containers. They can accommodate different sizes and shapes of packaging, making them suitable for various industries such as food and beverage, pharmaceuticals, electronics, and consumer goods.

5. Oil-Free Operation:

Many screw vacuum pumps are designed to operate without the use of lubricating oil or fluids. This oil-free operation eliminates the risk of oil contamination in the packaging process, making them particularly suitable for applications where cleanliness and hygiene are crucial, such as in the food industry or medical packaging.

6. Reliability and Durability:

Screw vacuum pumps are known for their robust construction and reliable performance. They are designed to handle continuous operation and can withstand the demanding conditions of packaging and sealing processes, including frequent start-stop cycles and exposure to moisture, dust, or other contaminants.

7. Cost-Effectiveness:

Using screw vacuum pumps for vacuum packaging and sealing processes can be cost-effective in the long run. They offer energy-efficient operation, low maintenance requirements, and long service life, resulting in reduced operating costs and improved productivity.

In summary, screw vacuum pumps are well-suited for vacuum packaging and sealing processes. Their efficient evacuation capabilities, ability to maintain consistent vacuum levels, control and automation features, versatility, oil-free operation, reliability, and cost-effectiveness make them a valuable choice for a wide range of industries that require vacuum packaging and sealing of products.

screw vane pump

What is a screw vacuum pump, and how does it operate?

A screw vacuum pump is a type of positive displacement vacuum pump that utilizes two or more intermeshing screws to create a vacuum by trapping and transporting gas or vapor from the inlet to the outlet of the pump. It operates based on the principle of volumetric compression.

The basic components of a screw vacuum pump include rotors (screws), a housing, and inlet and outlet ports. The rotors are typically helical in shape and have precise screw profiles. They are mounted on parallel shafts within the pump housing. As the rotors rotate, the intermeshing screws create sealed cavities or “pockets” between the rotor lobes and the housing.

The operation of a screw vacuum pump typically involves the following steps:

  1. Inlet Stage: At the beginning of the pump cycle, the rotors start rotating. As the cavity between the rotor lobes and the housing passes the inlet port, gas or vapor is drawn into the cavity. The volume of the cavity expands, creating a low-pressure zone at the inlet.
  2. Compression Stage: As the rotors continue to rotate, the cavity moves towards the outlet port, gradually reducing its volume. This reduction in volume compresses the gas or vapor trapped within the cavity, causing its pressure to increase.
  3. Outlet Stage: Finally, when the cavity reaches the outlet port, the compressed gas or vapor is discharged from the pump, and the cycle repeats.

It is important to note that screw vacuum pumps can operate with either dry or liquid seals. Dry screw vacuum pumps rely on tight clearances between the rotors and the housing to create an effective seal, while liquid-sealed screw vacuum pumps use a liquid sealant to prevent gas leakage and provide lubrication between the rotor surfaces.

Screw vacuum pumps offer several advantages in various applications:

  • High Efficiency: Screw vacuum pumps can achieve high volumetric efficiency due to their positive displacement design, enabling them to handle large volumes of gas or vapor efficiently.
  • Continuous Operation: These pumps are capable of continuous operation, making them suitable for demanding industrial processes requiring sustained vacuum levels.
  • Reliability: Screw vacuum pumps are known for their reliability and robust construction, making them suitable for harsh operating conditions.
  • Low Noise Levels: Compared to other types of vacuum pumps, screw vacuum pumps often produce lower noise levels during operation.
  • Wide Range of Applications: Screw vacuum pumps find applications in various industries, including chemical processing, pharmaceuticals, food and beverage, wastewater treatment, and more.

In summary, a screw vacuum pump is a positive displacement pump that utilizes intermeshing screws to create a vacuum by trapping and compressing gas or vapor. Its operation involves drawing gas into the cavity, compressing it, and then discharging it. Screw vacuum pumps offer high efficiency, reliability, and suitability for a wide range of applications, making them a popular choice in many industries.

China high quality Air Cooled Screw Vacuum Pumps for Brick, Ceramic Manufacturing   vacuum pump brakesChina high quality Air Cooled Screw Vacuum Pumps for Brick, Ceramic Manufacturing   vacuum pump brakes
editor by CX 2024-04-04

China Professional Air Cooled Screw Vacuum Pumps for Lectronics, Metallurgy, Chemical, Food, Machinery, Medicine, Aerospace and Other Departments vacuum pump for ac

Product Description

Dry Screw Vacuum Pump RSB571

Product Description

Dry screw vacuum pump, is the use of a pair of screw, made in the pump shell synchronous high-speed reverse rotation of the effects of the suction and exhaust and suction device, 2 screw fine dynamic balancing correction, and is supported by bearings, is installed in the pump shell, between screw and screw has a certain gap, so the pump work, no friction between each other, smooth running, low noise, Working chamber without lubricating oil, therefore, dry screw pump can remove a lot of steam and a small amount of dust gas occasions, higher limit vacuum, lower power consumption, energy saving, maintenance-free and other advantages.

There is no medium in the working chamber, which can obtain a clean vacuum.
No clearance between rotating parts, high speed operation, small overall volume.

There is no compression in the gas, suitable for extraction of coagulable gas.

Can remove a lot of steam and a small amount of dust gas occasions.
High vacuum, the ultimate vacuum up to 1 Pa.

Screw material is high strength special material, material density, wear resistance, stable performance.

No friction rotating parts, low noise.
Simple structure, convenient maintenance.
Wider range of use: corrosive environment can be used.

No oil consumption, no water.

Pump gas directly discharged from the pump body, no pollution of water, no environmental pressure, more convenient gas recovery.

It can be composed of oil-free unit with Roots pump and molecular pump.

Product Parameters

Product Model 50/60Hz RSB571
Pumping Speed 50Hz 18m³/H
60Hz 22m³/H
Ultimate Pressure mbar 0.03
Inlet Diameter   KF40
Voltage 50Hz 200-240/345-415V
60Hz 220-275/380-480V
Motor Power kW 1.5
Rotate Speed r/min 2900/3500
Noise Level dB 72
Cooling Mode   Air Cooling
Net Weight kg 48

 

Detailed Photos

Installation Instructions

 

Certifications

Company Profile

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Screw Number: Double Screw Pump
Screw Suction Method: Single Suction
Pump Shaft Position: Horizontal
Performance: Anticorrosion
Application: Chemical
Certification: CE, ISO
Samples:
US$ 4500/Set
1 Set(Min.Order)

|

Customization:
Available

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screw vane pump

What are the cost considerations when purchasing and maintaining screw vacuum pumps?

When purchasing and maintaining screw vacuum pumps, several cost considerations come into play. Here’s a detailed explanation of the key factors to consider:

1. Initial Purchase Cost:

The initial purchase cost of a screw vacuum pump is an important consideration. The cost can vary depending on factors such as the pump’s capacity, specifications, features, and the manufacturer. Generally, screw vacuum pumps tend to have a higher upfront cost compared to some other types of vacuum pumps. However, it’s essential to evaluate the long-term benefits and performance advantages offered by screw vacuum pumps to determine their overall value for the specific application.

2. Energy Consumption:

Energy consumption is a significant ongoing cost associated with operating screw vacuum pumps. While screw vacuum pumps are known for their high efficiency, it’s important to consider the power requirements and energy consumption of the specific pump model. Opting for energy-efficient screw vacuum pumps can result in long-term cost savings by reducing electricity bills and minimizing the environmental impact. Additionally, pumps equipped with advanced control systems or variable speed drives allow for better energy optimization and can further enhance cost-effectiveness.

3. Maintenance and Service:

Maintenance and service costs are important considerations throughout the lifecycle of a screw vacuum pump. Regular maintenance is necessary to ensure optimal performance, reliability, and longevity of the equipment. The specific maintenance requirements and associated costs can vary depending on the pump model and manufacturer. It’s crucial to follow the manufacturer’s recommended maintenance schedule and guidelines. Some maintenance tasks may include changing seals, replacing filters, inspecting and lubricating bearings, and monitoring performance parameters. Proper maintenance can prevent costly breakdowns, extend the pump’s service life, and minimize unexpected repair expenses.

4. Spare Parts and Consumables:

When budgeting for screw vacuum pumps, it’s important to consider the cost of spare parts and consumables. Over time, certain components of the pump may require replacement, such as seals, gaskets, filters, or lubricants. The availability and cost of these spare parts can vary depending on the pump model and manufacturer. It’s advisable to inquire about the availability, pricing, and expected lifespan of consumables when purchasing the pump and factor these costs into the overall budget.

5. Operational Downtime:

Operational downtime can have significant cost implications for any industrial process. When a screw vacuum pump requires maintenance, repair, or replacement, it may result in downtime, leading to production interruptions, decreased efficiency, and potential revenue loss. Therefore, it’s important to consider the reliability, serviceability, and availability of technical support when choosing a screw vacuum pump. Opting for reputable manufacturers with a track record of providing reliable products and responsive customer support can help minimize operational downtime and mitigate associated costs.

6. Lifecycle Cost Analysis:

When evaluating the cost considerations of screw vacuum pumps, it’s beneficial to conduct a lifecycle cost analysis. This analysis takes into account not only the initial purchase cost but also the long-term operational costs, maintenance expenses, energy consumption, and expected service life of the pump. By considering the total cost of ownership over the pump’s lifespan, including factors like efficiency, reliability, and maintenance requirements, it becomes easier to assess the cost-effectiveness of different pump options and make informed purchasing decisions.

7. Warranty and After-Sales Support:

Considering the warranty and after-sales support offered by the pump manufacturer is essential. A comprehensive warranty can provide cost protection against potential defects or premature failures. Additionally, reliable after-sales support, technical assistance, and readily available spare parts can contribute to minimizing downtime, reducing repair costs, and ensuring the long-term performance of the screw vacuum pump.

In summary, the cost considerations when purchasing and maintaining screw vacuum pumps include the initial purchase cost, energy consumption, maintenance and service expenses, spare parts and consumables, operational downtime, lifecycle cost analysis, and warranty and after-sales support. By carefully evaluating these factors and assessing the specific needs of the application, businesses can make informed decisions to optimize cost-effectiveness and achieve reliable vacuum pump performance.

screw vane pump

Can screw vacuum pumps be used for vacuum packaging and sealing processes?

Yes, screw vacuum pumps can be used for vacuum packaging and sealing processes. Screw vacuum pumps offer several advantages that make them suitable for these applications. Here’s a detailed explanation:

1. Efficient Evacuation:

Screw vacuum pumps are known for their high pumping speed, which allows them to quickly evacuate the packaging chamber. By removing air and other gases from the packaging environment, screw vacuum pumps create the necessary vacuum conditions for packaging and sealing processes.

2. Consistent Vacuum Levels:

Screw vacuum pumps are capable of maintaining consistent vacuum levels throughout the packaging and sealing process. This is important to ensure reliable and uniform packaging results. The stable vacuum levels achieved by screw vacuum pumps help preserve product quality, extend shelf life, and prevent spoilage or degradation of packaged goods.

3. Control and Automation:

Screw vacuum pumps can be easily integrated into packaging and sealing systems, allowing for precise control and automation of the vacuum process. They can be equipped with sensors, controllers, and programmable logic controllers (PLCs) to monitor and adjust the vacuum levels, packaging parameters, and sealing operations. This enables efficient and repeatable packaging processes.

4. Versatility:

Screw vacuum pumps are versatile and can handle a wide range of packaging materials, including flexible pouches, bags, trays, and rigid containers. They can accommodate different sizes and shapes of packaging, making them suitable for various industries such as food and beverage, pharmaceuticals, electronics, and consumer goods.

5. Oil-Free Operation:

Many screw vacuum pumps are designed to operate without the use of lubricating oil or fluids. This oil-free operation eliminates the risk of oil contamination in the packaging process, making them particularly suitable for applications where cleanliness and hygiene are crucial, such as in the food industry or medical packaging.

6. Reliability and Durability:

Screw vacuum pumps are known for their robust construction and reliable performance. They are designed to handle continuous operation and can withstand the demanding conditions of packaging and sealing processes, including frequent start-stop cycles and exposure to moisture, dust, or other contaminants.

7. Cost-Effectiveness:

Using screw vacuum pumps for vacuum packaging and sealing processes can be cost-effective in the long run. They offer energy-efficient operation, low maintenance requirements, and long service life, resulting in reduced operating costs and improved productivity.

In summary, screw vacuum pumps are well-suited for vacuum packaging and sealing processes. Their efficient evacuation capabilities, ability to maintain consistent vacuum levels, control and automation features, versatility, oil-free operation, reliability, and cost-effectiveness make them a valuable choice for a wide range of industries that require vacuum packaging and sealing of products.

screw vane pump

What are the different types of screw vacuum pumps available in the market?

There are several different types of screw vacuum pumps available in the market, each with its own design and operating characteristics. Here are some of the commonly used types of screw vacuum pumps:

1. Single-Stage Screw Vacuum Pumps:

Single-stage screw vacuum pumps consist of a single pair of intermeshing screws (rotors) that rotate to create vacuum. These pumps are commonly used for low to medium vacuum applications and can achieve a wide range of vacuum levels. Single-stage screw vacuum pumps are known for their compact design, high pumping speed, and efficient operation.

2. Multi-Stage Screw Vacuum Pumps:

Multi-stage screw vacuum pumps consist of multiple stages, each with its own pair of intermeshing screws. The gas or vapor is sequentially compressed and evacuated through multiple stages, allowing for higher vacuum levels to be achieved. Multi-stage screw vacuum pumps are suitable for applications requiring deeper vacuum levels, such as in chemical processing, power generation, and semiconductor manufacturing.

3. Dry Screw Vacuum Pumps:

Dry screw vacuum pumps operate without the use of any lubricating fluid in the pumping chamber. These pumps rely on tight clearances between the rotors and housing to create a seal and achieve vacuum. Dry screw vacuum pumps are preferred in applications where oil contamination or the presence of lubricating fluids is undesirable, such as in the electronics, pharmaceutical, and food processing industries.

4. Liquid Ring Screw Vacuum Pumps:

Liquid ring screw vacuum pumps combine the principles of liquid ring vacuum pumps and screw vacuum pumps. These pumps use a liquid ring as the sealing and compression medium, while the screws provide the positive displacement action. Liquid ring screw vacuum pumps are known for their capability to handle wet processes and carryover of liquid or condensable vapors. They are commonly used in applications where both liquid and gas handling is required, such as in chemical processing, wastewater treatment, and oil refining.

5. Variable Pitch Screw Vacuum Pumps:

Variable pitch screw vacuum pumps feature rotors with varying helical pitches along their length. This design allows for better optimization of the compression process and improved efficiency. Variable pitch screw vacuum pumps are often used in applications that require a wide operating range and high efficiency, such as in semiconductor manufacturing, research laboratories, and vacuum coating processes.

6. Oil-Injected Screw Vacuum Pumps:

Oil-injected screw vacuum pumps utilize injected oil as a sealing and lubricating medium. The oil creates a seal between the rotors and housing and provides lubrication to minimize friction. These pumps are commonly used in industrial applications where a higher level of vacuum is required, such as in power plants, chemical processes, and central vacuum systems.

7. Oil-Free Screw Vacuum Pumps:

Oil-free screw vacuum pumps are designed to operate without the use of any lubricating oil or fluid. These pumps employ alternative methods, such as dry running or the use of non-contacting technologies, to achieve the necessary sealing and lubrication. Oil-free screw vacuum pumps are favored in applications where oil contamination is a concern, such as in electronics manufacturing, pharmaceutical production, and food processing.

These are just a few examples of the different types of screw vacuum pumps available in the market. The choice of the most suitable type depends on specific application requirements, desired vacuum levels, process conditions, and industry standards.

China Professional Air Cooled Screw Vacuum Pumps for Lectronics, Metallurgy, Chemical, Food, Machinery, Medicine, Aerospace and Other Departments   vacuum pump for ac	China Professional Air Cooled Screw Vacuum Pumps for Lectronics, Metallurgy, Chemical, Food, Machinery, Medicine, Aerospace and Other Departments   vacuum pump for ac
editor by CX 2024-04-03

China Standard Permanent Magnet Frequency Conversion Low Pressure Vacuum Pump Screw Vacuum Pumps for Air Compressor vacuum pump electric

Product Description

                                       EXTERIOR DESIGN                                                                INTERIOR DESIGN

ZheJiang CHINAMFG Machinery Manufacturing Co. , Ltd. is located in HangZhou, ZheJiang .CHINAMFG is a comprehensive screw air compressor

manufacturer that engaged in R & D, design, production and sales. It has a plant of 20,000 square meters, including a large production workshop,

a comprehensive first-class exhibition hall and a testing laboratory.

CHINAMFG has excellent mechanical engineering designers, an experienced staff team and a professional management team. The production

concept focuses on energy-saving and is committed to perfecting and improving the technological process in order to get the core technology

of super frequency energy-saving, achieving the characteristics of mute, durability, power saving and safety.

The company has 9 series of products with multiple models. Including Fixed speed air compressor, PM VSD air compressor, PM VSD

two-stage air compressor, 4-in-1 air compressor, Oil free water lubrcating air compressor, Diesel portable screw air compressor, Electric

portable screw air compressor, Air dryer, Adsorption machine and the matching spare parts. CHINAMFG adheres to the business philosophy of

cooperation and mutual benefit to provide a one-stop service for every customer!

CHINAMFG air compressors not only cover the domestic market but also are exported to more than 20 countries and regions such as South

Africa, Australia, Thailand, Russia, Argentina, Canada and so on. CHINAMFG products have won a good reputation from users for their excellent

quality and style. The company has always adhered to the concept of quality first, service first and dedication to providing every customer with

excellent products and meticulous after-sales service!

CHINAMFG warmly welcome customers to visit our factory and establish a wide range of cooperation!

Frequency Asked Question:

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our Factory is Located in Xihu (West Lake) Dis. CountyHangZhou CityZheJiang  Province, China.

Q3: Will you provide spare parts of your products? 
A3: Yes, We provide all parts to customer, so you can do repair or maintenance without trouble.

Q4: Can you accept OEM orders? 
A4: Yes, with professional design team, OEM orders are highly welcome.

Q5: How long will you take to arrange production?
A5: Immediate delivery for stock products.380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 25-30 days.

Q6: Warranty terms of your machine?
A6Two years warranty for the machine and technical support always according to your needs.

Q7: Can you provide the best price?
A7:According to your order, we will provide you the best price. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 24 Hours
Warranty: 1 Year, 2 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Horizontal
Customization:
Available

|

screw vane pump

How do screw vacuum pumps compare to other types of vacuum pumps in terms of performance?

Screw vacuum pumps offer several advantages and unique characteristics compared to other types of vacuum pumps. Here’s a detailed explanation of how screw vacuum pumps compare to other vacuum pump types in terms of performance:

1. Efficiency and Energy Consumption:

Screw vacuum pumps are known for their high efficiency and energy-saving capabilities. Compared to other types of vacuum pumps, such as rotary vane pumps or liquid ring pumps, screw vacuum pumps typically have a higher efficiency rating. They achieve this through design features like internal compression, which minimizes energy losses and reduces power consumption. The efficient operation of screw vacuum pumps can result in lower operating costs and reduced environmental impact.

2. Vacuum Level and Flow Rate:

Screw vacuum pumps are capable of achieving both high vacuum levels and high flow rates. They are particularly well-suited for applications requiring a wide operating range, from low to medium vacuum levels. While other types of pumps, like rotary vane pumps, may excel in certain vacuum ranges, screw vacuum pumps offer a versatile performance that suits a variety of industrial applications.

3. Handling of Wet and Contaminated Gases:

Screw vacuum pumps exhibit good tolerance for wet and contaminated gases. They can handle gases containing moisture, condensable vapors, particulates, or even liquid droplets without significant performance degradation. This capability makes screw vacuum pumps suitable for applications where the pumped gases may contain impurities or where condensation is likely to occur. In comparison, some other types of pumps may be more sensitive to moisture or require additional equipment, such as gas traps or separators, to handle wet or contaminated gases effectively.

4. Reliability and Maintenance:

Screw vacuum pumps are generally known for their reliability and low maintenance requirements. They have a robust design with fewer moving parts compared to certain types of pumps, such as rotary vane pumps or liquid ring pumps. This simpler design contributes to reduced wear and tear, resulting in longer service intervals and lower maintenance costs. Additionally, screw vacuum pumps often have longer service life due to their durable construction and efficient operation.

5. Noise and Vibration:

Screw vacuum pumps tend to produce lower noise levels and vibration compared to some other types of pumps. The design of screw vacuum pumps, with balanced rotors and reduced internal clearances, helps minimize noise and vibration during operation. This characteristic can be advantageous in applications where noise reduction and a quieter working environment are desired.

6. Size and Compactness:

Screw vacuum pumps are generally compact in size, making them suitable for installations where space is limited. Their compact design allows for easier integration into existing systems or equipment layouts. In comparison, some other types of pumps, such as liquid ring pumps or some types of dry pumps, may have larger footprints or require additional ancillary equipment, which can pose challenges in space-constrained environments.

7. Specific Application Considerations:

It’s important to note that the choice of vacuum pump type should consider the specific requirements of the application. While screw vacuum pumps offer numerous advantages, certain applications may benefit from the characteristics of other vacuum pump types. For example, oil-sealed rotary vane pumps may be preferred in applications requiring very high vacuum levels, while dry scroll pumps may be suitable for oil-free or cleanroom environments.

In summary, screw vacuum pumps offer high efficiency, versatility in vacuum level and flow rate, good tolerance for wet and contaminated gases, reliability with low maintenance requirements, reduced noise and vibration levels, compactness, and space-saving advantages. However, it is crucial to evaluate the specific needs of the application and consult with experts to determine the most suitable vacuum pump type for optimal performance and efficiency.

screw vane pump

What are the maintenance and servicing requirements for screw vacuum pumps?

Screw vacuum pumps require regular maintenance and servicing to ensure optimal performance, reliability, and longevity. Here’s a detailed explanation of the typical maintenance and servicing requirements for screw vacuum pumps:

1. Regular Inspections:

Perform regular visual inspections of the screw vacuum pump to check for any signs of wear, damage, or leaks. Inspect the pump, motor, and associated components for loose connections, worn-out parts, or abnormal vibrations. Ensure that all safety features and interlocks are functioning correctly.

2. Lubrication:

If the screw vacuum pump is equipped with lubrication points, follow the manufacturer’s guidelines for lubrication intervals and the type of lubricant to use. Proper lubrication helps reduce friction, wear, and heat generation, ensuring smooth operation and extending the life of the pump.

3. Cleaning and Filtration:

Keep the screw vacuum pump and its surrounding area clean and free from debris, dust, or contaminants that can affect its performance. Regularly clean or replace air filters to prevent clogging and maintain proper airflow. Clean the pump’s exterior surfaces using suitable cleaning agents and methods recommended by the manufacturer.

4. Belt and Pulley Maintenance:

If the screw vacuum pump is belt-driven, inspect the condition of the belts and pulleys regularly. Check for any signs of wear, cracks, or belt tension issues. Adjust or replace belts as necessary to maintain proper tension and alignment, ensuring efficient power transmission.

5. Cooling System Maintenance:

If the screw vacuum pump is equipped with a cooling system, regularly check and maintain the cooling components. Clean or replace cooling fins, check coolant levels, and ensure proper circulation to prevent overheating and ensure optimal cooling efficiency.

6. Seal Inspection and Replacement:

Inspect the seals, gaskets, and O-rings of the screw vacuum pump regularly. Look for signs of wear, leaks, or degradation. Replace worn-out or damaged seals promptly to maintain proper sealing and prevent air leaks that can impact the pump’s performance.

7. Vibration and Noise Monitoring:

Monitor the vibration and noise levels during the operation of the screw vacuum pump. Excessive vibration or unusual noise can indicate a mechanical problem or misalignment. Take corrective measures if required to minimize vibration and noise, ensuring smooth and quiet operation.

8. Scheduled Maintenance:

Follow the manufacturer’s recommended maintenance schedule for the screw vacuum pump. This may include periodic servicing, such as changing of oil or fluids, inspection and replacement of internal components, and performance checks. Adhering to the scheduled maintenance helps prevent unexpected breakdowns and ensures the pump operates at its best.

9. Expert Servicing:

For complex maintenance or repairs, it is advisable to seek the assistance of qualified technicians or service professionals with experience in screw vacuum pumps. They have the expertise and knowledge to diagnose and resolve issues effectively, ensuring proper maintenance and servicing of the pump.

10. Training and Documentation:

Ensure that the personnel responsible for the screw vacuum pump’s maintenance and servicing are adequately trained on the proper procedures, safety guidelines, and best practices. Maintain comprehensive documentation, including service records, manuals, and relevant technical information for reference and future servicing needs.

In summary, regular inspections, lubrication, cleaning, filtration, belt and pulley maintenance, cooling system maintenance, seal inspection and replacement, vibration and noise monitoring, scheduled maintenance, expert servicing, training, and documentation are important aspects of maintaining and servicing screw vacuum pumps. By following these guidelines and the manufacturer’s recommendations, the pump can operate efficiently, minimize downtime, and have an extended service life.

screw vane pump

What are the advantages of using a screw vacuum pump in industrial processes?

Using a screw vacuum pump in industrial processes offers several advantages, making it a preferred choice for various applications. Here are some key advantages:

  • High Efficiency: Screw vacuum pumps are known for their high efficiency in handling large volumes of gas or vapor. They operate based on positive displacement, ensuring consistent performance regardless of pressure differentials. This high volumetric efficiency allows for faster evacuation and quicker process cycles, increasing overall productivity.
  • Wide Operating Range: Screw vacuum pumps are capable of maintaining stable vacuum levels across a wide range of pressures. They can achieve both low and high vacuum levels, making them versatile for different industrial processes. This wide operating range enables their use in applications that require precise control of vacuum levels.
  • Continuous Operation: Screw vacuum pumps are designed for continuous operation without the need for frequent shutdowns or maintenance. They can handle demanding industrial processes that require sustained vacuum levels for extended periods. This continuous operation improves productivity and reduces downtime.
  • Reliability and Durability: Screw vacuum pumps are known for their reliability and robust construction. They are designed to withstand harsh operating conditions, including high temperatures, corrosive environments, and heavy-duty applications. Their durable design and materials ensure long service life and minimal maintenance requirements.
  • Low Noise Levels: Screw vacuum pumps generally produce lower noise levels compared to other types of vacuum pumps. This feature is particularly beneficial in industrial settings where noise reduction is important for the comfort and safety of workers.
  • Ability to Handle Wet and Dirty Gases: Screw vacuum pumps can handle wet and dirty gases effectively without compromising performance. They are designed to handle condensable vapors, particulates, and liquid carryover, which makes them suitable for applications where the gas or vapor may contain contaminants.
  • Reduced Environmental Impact: Screw vacuum pumps often incorporate energy-efficient designs, resulting in reduced power consumption and lower operating costs. Additionally, some models may include features such as oil-free operation, which eliminates the need for lubricating oil and reduces the environmental impact.
  • Application Versatility: Screw vacuum pumps find applications in a wide range of industries, including chemical processing, pharmaceuticals, food and beverage, power generation, electronics manufacturing, and more. They are capable of handling various gases and vapors, making them adaptable to different industrial processes.

Overall, the advantages of using a screw vacuum pump in industrial processes include high efficiency, wide operating range, continuous operation, reliability, low noise levels, ability to handle wet and dirty gases, reduced environmental impact, and application versatility. These factors contribute to improved productivity, cost savings, and enhanced process control, making screw vacuum pumps a popular choice in many industrial settings.

China Standard Permanent Magnet Frequency Conversion Low Pressure Vacuum Pump Screw Vacuum Pumps for Air Compressor   vacuum pump electricChina Standard Permanent Magnet Frequency Conversion Low Pressure Vacuum Pump Screw Vacuum Pumps for Air Compressor   vacuum pump electric
editor by CX 2024-03-29

China Standard Lgv 180 4kw 180m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation manufacturer

Product Description

 

Product Description

The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.

The screw vacuum pump has a simple structure, but its processing technology requires higher requirements. It must ensure that the height between rotors is parallel, and that between rotors and between rotors and the inner wall of the pump body, there is a very small gap and no friction caused by contact, so as to ensure the realization of gas transmission and reduce gas backflow without the need for oil lubrication and sealing.

This requires that the entire product must be the highest standard from material selection to processing. Because the clearance between components is required to be very small, it is necessary to ensure that the screw and pump body materials are not easy to deform, especially when the temperature changes to a certain value, the locking phenomenon cannot occur due to deformation. Special material treatment shall be selected to ensure the fine processing of all parts. In addition to the fine processing of the 2 screws, dynamic balance correction shall be carried out. The shaft end bearing must be a high-quality special bearing, which not only ensures the parallelism of the screw rotor and is not prone to slight displacement, but also ensures smooth rotation and is not affected by temperature and other factors. When the vacuum pump is working, the clearance between them is small without friction, the operation is stable, the vibration is small, the noise is low, the energy is saved, and the service life is extended. The special screw structure can continuously promote the air flow without compression. The exhaust port is lower than the screw position, the liquid discharge capacity is strong, and it is easy to clean. The pump cavity has short channels, no partitions, and the exhaust and discharge are smooth, so the working efficiency is high, the suction is super strong, and the limit vacuum degree of the pump is greatly improved, It can provide high vacuum ≤ 5Pa or even close to 1Pa; There is no lubrication and pollution in the working chamber, which can provide a clean vacuum without worrying about backflow pollution. Extracts can also be directly recycled or discharged without environmental pressure. Elaborate design, simple structure and precise processing make it more convenient to use and easier to maintain, which is favored by many industry users. It is widely used, not only to extract condensable gas, but also to extract gas containing a large amount of water vapor and a small amount of dust. The specially treated overflow surface can also be used to extract certain corrosive gas, and it is also a special product for oil and gas recovery, solvent recovery, special gas recovery and other industries.
 

Our Advantages

1,Clean and environment-friendly, the working chamber is free of lubricating oil, which is conducive to medium recovery, can obtain clean vacuum, no oil consumption, waste water discharge, and no pollution to the environment.
2,The vacuum degree is high, the limit vacuum degree is ≤ 1Pa, and the pumping capacity in the high vacuum area is large.
3,The anti-corrosion design is optional. The flow passage parts are made of titanium, stainless steel, nano ceramics, spraying NIP alloy and other materials and anti-corrosion coatings.
4,The condensable gas and a small amount of dust gas can be removed, and an automatic purging device is designed.
5,Special shaft seal design prevents mutual pollution between pumped medium and lubricating oil.
6,Variable pitch screw pump saves energy and has low noise.
7,The operation is stable, the rotor is subject to fine dynamic balance test, and the operation vibration is small.
8,High configuration, sealed in Germany, bearing NSK, gear grade 5 grinding.
 

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Screw vacuum pump can be configured according to user requirements, or it can use explosion-proof motor with high configuration. Because of its low noise, no oil and no pollution, clean and high vacuum, simple and convenient use, operation and maintenance, it is widely used in oil and gas recovery, vacuum coating, biomedicine, food processing, single crystal furnace, vacuum molding, vacuum smelting, electronic photovoltaic, semiconductor synthesis and many other industries. It can be used as a single pump or as a unit with other pumps.
 

Product Parameters

The dry oil-free screw vacuum pump produced by our company can be divided into air cooling and water cooling according to the vacuum pumping rate, and there are many models for you to choose.

 Air cooling    Dry screw vacuum pump

Type
(Air cooled series)
 Basic parameters 
Pumping speed
(m3/h)
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
(mm)
outlet caliber (mm) Pump head weight
(kg)
noise dB(A) Overall dimension
(length*width*height)
(mm)
LG-10 10 ≤5 0.75 2730 KF16 KF16 30 ≤ 72 655x260x285
LG-20 20 ≤5 1.1 2840 KF25 KF25 55 ≤72 720x305x370
LG-50 50 ≤10 2.2 2850 KF40 KF40 90 ≤75 920x350x420
LG-70 70 ≤30 3 2850 KF40 KF40 110 ≤75 910x390x460
LG-90 90 ≤30 4 2870 KF50 KF50 125 ≤80 1000x410x495

Water cooling Dry screw vacuum pump

 

Type                                                                             Basic parameters
Pumping speed
m3/h
Presure limit(Pa)  Power (kW)  revolution (rpm) Inlet caliber
mm
outlet caliber mm Cooling water volume
L/min
noise dB(A) Overall dimension
(length*width*height)
mm
LGV-180 180 5 4 2900 40 40 2 < 78 1157x375x734
LGV-250 250 5 5.5 2900 50 40 5.5 <78 1462x417x820
LGV-360 360 5 7.5 2900 50 40 4 W78 1462x455x820
LGV-540 540 5 11 2900 65 50 8 W80 1578x543x860
LGV-720 720 5 15 2900 80 65 10 <80 1623x562x916
LGV-1100 1100 5 22 2900 100 80 14 w 80 1866x598x1050
LG V-1800 1800 5 37 2900 150 100 20 w 80 2092×951 x 1150

Characteristic Curve

 

Detailed Photos

Vacuum pumps are used in oiling machines

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

 New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

 High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

   Product quality wins consumer cooperation

In shipment

ISO 9001

High tech enterprise certificate

  Welcome to send your needs, we will provide you with the best service,

provide the greatest help!!!

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After-sales Service: Lifetime Paid Service
Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Customization:
Available

|

screw vane pump

Can screw vacuum pumps be used in food processing and packaging industries?

Yes, screw vacuum pumps can be used in food processing and packaging industries. Here’s a detailed explanation of their suitability and applications in these industries:

1. Vacuum Packaging:

Screw vacuum pumps are commonly used in vacuum packaging applications within the food industry. Vacuum packaging helps extend the shelf life of food products by removing air from the packaging, reducing spoilage, and preserving freshness. Screw vacuum pumps create the necessary vacuum environment by efficiently evacuating air from the packaging containers or bags. Their oil-free operation ensures that there is no risk of oil contamination in the packaged food, making them ideal for maintaining food quality and safety standards.

2. Food Processing:

Screw vacuum pumps are also suitable for various food processing applications. They can be used in processes such as deaeration, freeze drying, and evaporation. In deaeration processes, screw vacuum pumps efficiently remove air and gases from food mixtures, improving the quality and texture of the final product. In freeze drying, screw vacuum pumps facilitate the removal of moisture from frozen food products, preserving their nutritional value and extending their shelf life. Similarly, in evaporation processes, screw vacuum pumps help create the necessary vacuum conditions for concentrating liquids and reducing their volume, such as in the production of fruit juices or dairy products.

3. Sanitary Design:

Screw vacuum pumps designed for food processing and packaging industries often incorporate sanitary features to meet strict hygiene standards. These pumps are constructed with materials that are resistant to corrosion and can withstand frequent cleaning and sterilization processes. They may also have smooth surfaces, rounded edges, and minimal crevices to prevent the accumulation of food particles or bacteria. Sanitary design ensures compliance with food safety regulations and facilitates easy cleaning, reducing the risk of contamination and ensuring the integrity of the food products.

4. Contamination Prevention:

The oil-free operation of screw vacuum pumps is particularly advantageous in food processing and packaging industries. Since oil-free pumps eliminate the risk of oil contamination, they are suitable for processes where maintaining the purity and quality of food products is critical. Oil contamination can affect the taste, odor, and overall quality of food items. By using oil-free screw vacuum pumps, manufacturers can ensure that their products remain uncontaminated and meet the required food safety standards.

5. Efficiency and Reliability:

Screw vacuum pumps are known for their efficiency and reliability. They offer consistent performance and can handle varying load demands effectively. This is beneficial in food processing and packaging industries, where the production volumes can vary, and reliable vacuum generation is crucial. The robust design and low maintenance requirements of screw vacuum pumps contribute to their overall reliability, minimizing downtime and ensuring continuous operation in food processing and packaging facilities.

6. Compliance with Regulations:

Screw vacuum pumps designed for food processing and packaging industries are often manufactured to comply with relevant regulations and standards. These pumps may adhere to guidelines such as the Food and Drug Administration (FDA) regulations or the European Hygienic Engineering and Design Group (EHEDG) standards. Compliance with these regulations ensures that the equipment meets the necessary hygiene and safety requirements for food processing and packaging applications.

In summary, screw vacuum pumps can be effectively used in food processing and packaging industries. Their applications include vacuum packaging, food processing processes like deaeration, freeze drying, and evaporation. With their sanitary design, contamination prevention capabilities, efficiency, reliability, and compliance with regulations, screw vacuum pumps offer reliable and safe vacuum solutions for the food industry.

screw vane pump

Can screw vacuum pumps be used in pharmaceutical and chemical industries?

Yes, screw vacuum pumps can be used in both the pharmaceutical and chemical industries. Here’s a detailed explanation of their applications and benefits in these industries:

Pharmaceutical Industry:

In the pharmaceutical industry, screw vacuum pumps play a crucial role in various processes, including:

1. Drying and Dehydration: Screw vacuum pumps are used for drying pharmaceutical products, such as tablets, powders, and granules. They create a vacuum environment that facilitates the removal of moisture, ensuring product stability and extending shelf life.

2. Distillation and Evaporation: Screw vacuum pumps are employed in distillation and evaporation processes to remove solvents, concentrate solutions, or separate components. They enable precise control over temperature and pressure conditions, ensuring efficient and high-quality separation of pharmaceutical compounds.

3. Filtration and Sterilization: Screw vacuum pumps are utilized in filtration systems to create suction for the filtration of pharmaceutical liquids and solutions. They are also employed in sterilization processes, such as autoclaves, where they help create the necessary vacuum conditions for steam sterilization.

4. Freeze Drying: Screw vacuum pumps are commonly used in freeze drying, also known as lyophilization, which is a widely used method for preserving sensitive pharmaceutical products. They facilitate the removal of water from frozen products under vacuum, preserving their structure, stability, and efficacy.

Chemical Industry:

In the chemical industry, screw vacuum pumps find applications in various processes, including:

1. Vacuum Distillation: Screw vacuum pumps are employed in vacuum distillation processes to separate and purify chemical compounds based on their boiling points. They create a vacuum environment that lowers the boiling points of the substances, enabling more efficient separation and reducing the energy required for the process.

2. Solvent Recovery: Screw vacuum pumps are used for solvent recovery in chemical production. They help remove solvents from mixtures, allowing for their reuse and reducing waste and environmental impact.

3. Vacuum Filtration: Screw vacuum pumps are utilized in vacuum filtration systems to facilitate the separation of solids from liquids or gases. They create suction that aids in the filtration process, improving efficiency and throughput.

4. Reactor Applications: Screw vacuum pumps are employed in various reactor applications, including creating vacuum conditions for chemical reactions that require low pressure or removing byproducts or unreacted gases from the reaction vessel.

Benefits:

There are several benefits of using screw vacuum pumps in the pharmaceutical and chemical industries:

1. Efficiency: Screw vacuum pumps offer high pumping speeds, allowing for rapid evacuation and faster processing times in pharmaceutical and chemical processes.

2. Control: Screw vacuum pumps can be easily integrated into automated systems, allowing for precise control and adjustment of vacuum levels, temperature, and other process parameters.

3. Versatility: Screw vacuum pumps can handle a wide range of chemical compounds and pharmaceutical products, making them suitable for diverse applications in these industries.

4. Reliability: Screw vacuum pumps are known for their robust construction and reliable performance, ensuring continuous operation and minimizing downtime.

5. Oil-Free Operation: Many screw vacuum pumps are designed for oil-free operation, which is essential in pharmaceutical and chemical applications where contamination from lubricating oil must be avoided.

6. Compliance: Screw vacuum pumps can meet the stringent requirements and standards of the pharmaceutical and chemical industries, including Good Manufacturing Practice (GMP) guidelines and safety regulations.

In summary, screw vacuum pumps are well-suited for applications in the pharmaceutical and chemical industries. Their efficiency, control capabilities, versatility, reliability, oil-free operation, and compliance with industry standards make them valuable assets in various processes, ranging from drying and distillation to filtration and sterilization.

screw vane pump

Can screw vacuum pumps handle both dry and wet processes?

Yes, screw vacuum pumps are capable of handling both dry and wet processes, making them versatile for a wide range of applications. The ability to handle both types of processes depends on the specific design and configuration of the screw vacuum pump, as well as any additional features or accessories that may be incorporated. Here’s a detailed explanation:

Dry Processes:

In dry processes, the screw vacuum pump operates without the presence of liquid or moisture. Dry screw vacuum pumps rely on tight clearances between the rotors (screws) and the pump housing to create an effective seal. This seal prevents gas or vapor from leaking back into the inlet or escaping to the atmosphere. The absence of liquid or moisture in the process stream helps maintain the integrity of the pump’s sealing mechanism and ensures reliable operation. Dry screw vacuum pumps are commonly used in applications where the process gas or vapor is predominantly dry and free from liquid carryover or condensable vapors.

Wet Processes:

In wet processes, the screw vacuum pump encounters liquids or moisture along with gas or vapor. These liquids can be in the form of condensable vapors, liquid carryover, or entrained liquid droplets. To handle wet processes, screw vacuum pumps may incorporate additional features or accessories to prevent damage, maintain performance, and ensure reliable operation. Some common methods used to handle wet processes include:

  • Liquid Seals: Certain screw vacuum pump designs utilize a liquid sealant to create a barrier between the process gas or vapor and the pump’s internal components. The liquid sealant helps prevent gas leakage, provides lubrication, and assists in sealing the clearances between the rotors and housing. This feature enables the pump to handle wet processes effectively by containing the liquid and maintaining proper sealing.
  • Separators and Filters: Screw vacuum pumps can be equipped with separators and filters to separate liquid droplets or solid particles from the gas or vapor stream. These components help protect the pump from potential damage caused by liquid or solid contamination and ensure the efficient operation of the pump.
  • Specific Design Considerations: Screw vacuum pump manufacturers may incorporate design modifications to enhance the pump’s ability to handle wet processes. This can include optimized clearances, corrosion-resistant materials, and specialized coatings or treatments to protect against liquid or moisture exposure.

It’s important to note that the specific capabilities of a screw vacuum pump in handling wet processes may vary between different models and manufacturers. Therefore, when selecting a screw vacuum pump for a wet process application, it is advisable to consult the manufacturer’s specifications, recommendations, and any additional guidance provided to ensure the pump is suitable for the intended process conditions.

In summary, screw vacuum pumps can handle both dry and wet processes, although the specific design and features of the pump may need to be considered for optimal performance in wet applications. Dry screw vacuum pumps are suitable for predominantly dry processes, while wet processes may require the use of liquid seals, separators, filters, or specialized design considerations to handle the presence of liquids or moisture effectively.

China Standard Lgv 180 4kw 180m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   manufacturer China Standard Lgv 180 4kw 180m3/H Air Cooled Dry Oil Free Screw Vacuum Pump for Lab Vacuum Distillation   manufacturer
editor by CX 2024-03-24