China wholesaler Liquid Water Ring Single Two Stage Air Pressure Vertical Type Reciprocating Piston Pump Slide Valve Vacuum Pump for Chemical Industry with high quality

Product Description

we located in the famous pump city of HangZhou China,our city have 40 years of experience of produce pumps.full of types & quality ensured, Perfect industrial chain ,Fast production cycle,
We can customize and design various raw material (stainless steel/Aluminum/bronze)vacuum pumps and pumps according to the requirements of users.

We are a professional manufacturer of vacuum equipment, strong technical force, sophisticated process equipment, perfect detection means, product performance to international standards. Our main products are: 2BEA, 2BEC, 2BV, SK, 2SK, 2sk-p1, SZ, SZB series water ring vacuum pump and compressor, W, WY series reciprocating vacuum pump, 2x series rotary vane vacuum pump, 2bw series water ring vacuum pump / compressor closed cycle system, ZJ series Roots vacuum pump, JZ, j2b series Roots water (liquid) ring vacuum unit and other vacuum equipment. Products are widely used in machinery, petroleum, chemical industry, papermaking, electronics, mining, metallurgy, medicine, sugar, printing and dyeing, plastics, pesticides, brick and tile machinery, low-temperature equipment, food machinery and other industries and other fields.
technical data:

2BV series vacuum pump is an upgraded product developed with new technology on the basis of traditional water ring vacuum pump in China. It adopts the design of pump coaxial direct connection, high reliability, easy installation and maintenance, and its volume is 30% less than that of traditional vacuum pump. It runs balanced, noise is less than 62 dB, has self-priming ability, and is easy to operate. Because of the oil-free design, it is basically free from maintenance because of the use of mechanical seals to eliminate leakage. 50% of the working fluid of the gas water separator equipped with the pump can be recycled, which reduces pollution and operation cost. Bronze impeller is used in the pump to improve its corrosion resistance. According to the user’s requirements, the stainless steel material is used, so the pump can operate normally in harsh environment. Therefore, it is widely used in chemical industry, medicine, food, papermaking and steel industry.

Performance characteristics

1. Pump coaxial direct connection design saves space and is easy to install.

2. The mechanical seal is used as the standard configuration, which eliminates the leakage and is easy to maintain.

3. The operation is stable and the noise can be as low as 62 dB.

4. Uniform corrosion resistant design, bronze impeller improves pump corrosion resistance, stainless steel material is more suitable for more demanding applications.

5. The unique flexible exhaust port design will not produce over compression, which ensures the best efficiency of 2BV within its performance range.

                                                         technical data

Line no Pump no m3/min -Mpa kW r.p.m L/MIN dB(A) kg
60V 2BV-2060 0.45 0.097 0.81 2880 2 62 37
61V 2BV-2061 0.86 0.097 1.45 2880 2 65 41
70V 2BV-2070 1.33 0.097 2.35 2850 2.5 66 66
71V 2BV-2071 1.83 0.097 3.85 2860 4.2 72 85
110V 2BV-5110 2.75 0.097 4 1450 6.7 63 120
111V 2BV-5111 3.83 0.097 5.5 1450 8.3 68 150
121V 2BV-5121 4.66 0.097 7.5 1450 10 69 210
131V 2BV-5131 6.66 0.097 11 1430 15 73 280
161V 2BV-5161 8.33 0.097 15 970 20 74 390
110V 2BV-6110 2.75 0.097 4 1450 6.7 63  
111V 2BV-6111 3.83 0.097 5.5 1450 8.3 68  
121V 2BV-6121 4.66 0.097 7.5 1450 10 69  
131V 2BV-6131 6.66 0.097 11 1430 15 73  
161V 2BV-6161 8.33 0.097 15 970 20 74  

impeller material: cast iron, Alumnium,bronze,stainless steel etc,
shell material: casting grey iro.
 flow: 280m3/h; power: 185kw; temperature of air: 0–80C;
sediment content of water: max 350g/m3,  PH: 2—10;

Working principle of water ring vacuum pump / liquid ring vacuum pump
The water-ring vacuum pump is a kind of coarse vacuum pump. The limit vacuum it can obtain is 2000-4000 Pa. The series air ejector can reach 270-670 Pa. Water ring pump can also be used as compressor, called water ring compressor, is a low-pressure compressor, its pressure range is 1-2X105 Pa meter pressure.
Water-ring vacuum pumps were originally used as self-suction pumps, and then gradually used in petroleum, chemical, mechanical, mining, light industry, medicine and food and many other industrial sectors. In many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture regain and vacuum degassing, water ring pump has been widely used. Due to the rapid development of vacuum application technology, water ring pump has been paid much attention in obtaining coarse vacuum. Because the gas compression in the water ring pump is isothermal, it can extract flammable and explosive gases, in addition, it can also extract dust, water-bearing gases, so the application of water ring pump is increasing.
The pump body contains proper amount of water as working fluid. When the impeller rotates clockwise in the diagram, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed ring which is approximately equal to the thickness of the pump cavity. The inner surface of the lower part of the water ring is exactly tangent to the hub of the impeller, and the upper inner surface of the water ring is just at the tip of the blade (in fact, the blade has a certain insertion depth in the water ring). At this time, a crescent space is formed between the hub and the water ring of the impeller, which is divided into several small cavities equal to the number of blades. If the lower zero of the impeller is taken as the starting point, the area of the small cavity increases from small to large when the impeller rotates 180 degrees, and is connected with the suction port on the end face. At this time, the gas is sucked in, and the small cavity is isolated from the suction port when the suction is finished. When the mouth is connected, the gas is discharged out of the pump.

motor for pumps material and structure:

our company located in HangZhou where famous hometown of  water pump ,with a long history of producing water pump and many years of experience.we’ll supply the best quality with cheaper price and accurately pump type for yo

Oil or Not: Oil Free
Structure: Reciprocating Vacuum Pump
Exhauster Method: Positive Displacement Pump


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

piston vacuum pump

How Does Piston Displacement Affect the Pump’s Performance?

Piston displacement is a crucial factor that significantly affects the performance of a piston vacuum pump. Here’s a detailed explanation:

Piston displacement refers to the volume of gas or air that a piston vacuum pump can move during each stroke of the piston. It determines the pump’s capacity or flow rate, which is the amount of gas that the pump can evacuate per unit of time.

1. Flow Rate:

– The piston displacement directly influences the flow rate of the pump.

– A larger piston displacement corresponds to a higher flow rate, meaning the pump can evacuate a larger volume of gas per unit of time.

– Conversely, a smaller piston displacement results in a lower flow rate.

2. Pumping Speed:

– The pumping speed is a measure of how quickly a vacuum pump can remove gas molecules from a system.

– The piston displacement is directly related to the pumping speed of the pump.

– A larger piston displacement leads to a higher pumping speed, allowing for faster evacuation of the system.

– A smaller piston displacement results in a lower pumping speed, which may require more time to achieve the desired vacuum level.

3. Vacuum Level:

– The piston displacement indirectly affects the achievable vacuum level of the pump.

– A larger piston displacement can help reach lower pressures and achieve a deeper vacuum.

– However, it’s important to note that achieving a deep vacuum also depends on other factors such as the design of the pump, the quality of the seals, and the operating conditions.

4. Power Consumption:

– The piston displacement can impact the power consumption of the pump.

– A larger piston displacement typically requires more power to operate the pump due to the increased volume of gas being moved.

– Conversely, a smaller piston displacement may result in lower power consumption.

5. Size and Weight:

– The piston displacement affects the size and weight of the pump.

– A larger piston displacement generally requires a larger pump size and may increase the weight of the pump.

– On the other hand, a smaller piston displacement can result in a more compact and lightweight pump.

It’s important to select a piston vacuum pump with an appropriate piston displacement based on the specific application requirements.

In summary, the piston displacement of a vacuum pump directly influences its flow rate, pumping speed, achievable vacuum level, power consumption, and size. Understanding the relationship between piston displacement and pump performance is crucial in choosing the right pump for a given application.

piston vacuum pump

What Industries Commonly Rely on Piston Vacuum Pumps?

Various industries rely on piston vacuum pumps for their specific applications and requirements. Here’s a detailed explanation:

1. Manufacturing and Industrial Processes:

– Piston vacuum pumps find extensive use in manufacturing and industrial processes across different sectors.

– They are commonly employed in vacuum packaging, where they help create a vacuum environment to preserve and extend the shelf life of food products.

– In the automotive industry, piston vacuum pumps are utilized in brake booster systems to provide the necessary vacuum for power braking.

– Other industrial applications include vacuum molding, vacuum drying, vacuum distillation, and vacuum filtration.

2. Pharmaceuticals and Medical Industry:

– The pharmaceutical and medical industry extensively relies on piston vacuum pumps for various critical processes.

– These pumps are used in pharmaceutical manufacturing for vacuum drying, solvent recovery, and distillation processes.

– In medical applications, piston vacuum pumps are utilized in vacuum suction devices and medical laboratory equipment.

– They are also employed in vacuum autoclaves for sterilization purposes.

3. Research and Laboratory Settings:

– Piston vacuum pumps are commonly found in research laboratories and scientific facilities.

– They are used for creating vacuum conditions in laboratory equipment such as vacuum ovens, freeze dryers, and vacuum desiccators.

– These pumps are crucial for applications like sample preparation, material testing, and scientific experiments requiring controlled environments.

4. Electronics and Semiconductor Manufacturing:

– The electronics and semiconductor industry heavily relies on piston vacuum pumps for various manufacturing processes.

– They are utilized in vacuum deposition systems for thin film coating, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD).

– Piston pumps are also employed in vacuum furnaces for heat treatment processes in semiconductor fabrication.

– Other applications include vacuum packaging of electronic components and devices.

5. Food Processing and Packaging:

– Piston vacuum pumps play a significant role in the food processing and packaging industry.

– They are used for vacuum packaging of perishable food items, preventing spoilage and extending shelf life.

– In food processing, these pumps assist in vacuum concentration, freeze drying, and deaeration processes.

6. Environmental and Waste Management:

– Piston vacuum pumps find applications in environmental and waste management sectors.

– They are used in vacuum systems for wastewater treatment, including processes like aeration, filtration, and sludge dewatering.

– Piston pumps also assist in industrial and municipal waste management systems for vacuum collection or transfer of waste materials.

7. Other Industries:

– Piston vacuum pumps have diverse applications in additional industries:

– They are used in the glass manufacturing industry for vacuum lifting and handling of glass sheets or products.

– Piston pumps find application in the printing industry for vacuum feeding and ink transfer systems.

– They are employed in the power generation industry for steam condenser evacuation and turbine sealing systems.

In summary, piston vacuum pumps find widespread use in industries such as manufacturing and industrial processes, pharmaceuticals and medical, research and laboratory settings, electronics and semiconductor manufacturing, food processing and packaging, environmental and waste management, as well as in other sectors like glass manufacturing, printing, and power generation.

piston vacuum pump

What Is the Role of Lubrication in Piston Vacuum Pump Operation?

Lubrication plays a crucial role in the operation of a piston vacuum pump. Here’s a detailed explanation:

1. Reduction of Friction:

– Lubrication is essential for reducing friction between moving parts within the pump.

– In a piston vacuum pump, the piston moves up and down inside the cylinder, and lubrication helps to minimize the friction between the piston rings and the cylinder wall.

– By reducing friction, lubrication prevents excessive wear and heat generation, ensuring smooth and efficient operation of the pump.

2. Sealing and Leakage Prevention:

– Lubrication helps to maintain proper sealing between the piston rings and the cylinder wall.

– The lubricating oil forms a thin film between these surfaces, creating a barrier that prevents gas leakage during the compression and vacuum creation process.

– Effective sealing is crucial for maintaining the desired vacuum level and preventing air or gas from entering the pump.

3. Cooling and Heat Dissipation:

– Piston vacuum pumps generate heat during operation, particularly due to the compression of gases.

– Lubricating oil helps in dissipating the heat generated, preventing the pump from overheating.

– The oil absorbs heat from the pump’s internal components and transfers it to the pump’s housing or cooling system.

– Proper cooling and heat dissipation contribute to the pump’s overall performance and prevent damage due to excessive heat buildup.

4. Contaminant Removal:

– Lubrication also aids in removing contaminants or particles that may enter the pump.

– The oil acts as a carrier, trapping and carrying away small particles or debris that could potentially damage the pump’s components.

– The oil passes through filters that help to remove these contaminants, keeping the pump’s internal parts clean and functioning properly.

5. Corrosion Prevention:

– Some lubricating oils contain additives that provide corrosion protection.

– These additives form a protective film on the pump’s internal surfaces, preventing corrosion caused by exposure to moisture or corrosive gases.

– Corrosion prevention is crucial for maintaining the pump’s performance, extending its lifespan, and minimizing the need for repairs or component replacement.

6. Proper Lubrication Selection:

– Selecting the appropriate lubricating oil is essential for the proper functioning of a piston vacuum pump.

– Different pump models and manufacturers may recommend specific oil types or viscosities to ensure optimal performance and longevity.

– It is crucial to follow the manufacturer’s guidelines regarding oil selection, oil level, and oil change intervals.

In summary, lubrication plays a vital role in piston vacuum pump operation by reducing friction, maintaining proper sealing, dissipating heat, removing contaminants, and preventing corrosion. Proper lubrication selection and adherence to manufacturer’s guidelines are crucial for ensuring the pump’s efficient and reliable performance.

China wholesaler Liquid Water Ring Single Two Stage Air Pressure Vertical Type Reciprocating Piston Pump Slide Valve Vacuum Pump for Chemical Industry   with high quality China wholesaler Liquid Water Ring Single Two Stage Air Pressure Vertical Type Reciprocating Piston Pump Slide Valve Vacuum Pump for Chemical Industry   with high quality
editor by CX 2023-10-26