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2BV20121 Water ring vacuum pump

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2BV20121 Water Ring Vacuum Pump

The 2BV series water ring vacuum pumps and compressors are a pump-integrated structure that is suitable for pumping gas and water vapor. The suction pressure can reach 33hPa absolute pressure (97% vacuum). It is important to note that when the vacuum pump is in a state where the suction pressure is lower than a thousand 80hPa when working for a long time, the cavitation protection tube should be connected to protect the pump. If equipped with an atmospheric ejector, the suction pressure can reach 10hPa. The ejector can be directly installed on the suction port of the vacuum pump, and can also be placed on the corresponding pipeline of the thousand. When used as a compressor, its maximum pressure is less than 0.32MPa(absolute pressure).

Product Overview

The 2BV20121 Water Ring Vacuum Pump is a compact and energy-efficient pump designed for pumping gas and water vapor at high vacuums. The pump-integrated structure makes it easy to install and operate. With a suction pressure of up to 33hPa absolute pressure (97% vacuum), it is suitable for a wide range of industrial applications.

Product Features

  • High vacuum degree
  • Compact structure
  • Stable operation
  • Wide applicability
  • Low energy consumption
  • Easy operation

Working Principle and Components

The 2BV20121 Water Ring Vacuum Pump works by using a liquid ring to create a vacuum. The liquid ring is formed by the centrifugal force of the impeller and the water or other liquid that is used as a medium. The liquid ring creates a seal between the impeller and the casing, trapping gas or vapor and carrying it away from the suction inlet.

The main components of the pump include the impeller, casing, liquid ring, and inlet and outlet ports. The impeller rotates within the casing, creating a centrifugal force that forms the liquid ring.


The 2BV20121 Water Ring Vacuum Pump is commonly used in the following applications:

  • Chemical industry
  • Pharmaceutical industry
  • Food industry
  • Paper and pulp industry
  • Textile industry

2BV20121 Water Ring Vacuum Pump in use

Choosing the Right Water Ring Vacuum Pump

To choose the right water ring vacuum pump for your specific application, consider the following factors:

  • The type of gas or vapor being pumped
  • The required suction pressure
  • The required flow rate
  • The operating temperature
  • The chemical compatibility of the pump materials with the pumped fluid

Common Problems and Solutions

Common problems that may arise during the operation of the 2BV20121 Water Ring Vacuum Pump include cavitation, low flow rate, and excessive noise. To solve these problems, it is recommended to:

  • Connect the cavitation protection tube if the suction pressure drops below 1080hPa
  • Check for any blockages in the inlet or outlet ports
  • Make sure the pump is properly lubricated
  • Check for any leaks in the system
  • Adjust the impeller clearance if necessary

About Ever-Power

Ever-Power is a leading player in the China vacuum pump market, offering a wide range of products including Water Ring Vacuum Pumps, Rotary Piston Vacuum Pumps, Roots Vacuum Pump, Dry Screw Vacuum Pump, Slide Valve Vacuum Pump, Liquid Ring Vacuum Pump, Rotary vane vacuum pump, and more. Our products are manufactured using state-of-the-art CNC production equipment and automatic assembly equipment. We are committed to providing high-quality products, competitive prices, and exceptional customer service. We welcome customers to contact us for customized products and services.

Ever-Power Factory