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Liquid ring pumps

Liquid ring vacuum pumps are a common choice when it comes to flow-through systems. They offer flexibility for both full and partial recirculation. Although different liquids can be used, water is usually applied.

The operation of a liquid ring vacuum pump revolves around an eccentrically mounted rotor at the heart of the pump. This rotor is partially filled with an operating fluid. When the rotor rotates, the rotor blades come into contact with this liquid. This creates an internal fluid ring due to the centrifugal force that occurs.

At DOVAC, we offer several versions of liquid ring vacuum pumps, including single-stage and two-stage versions. The main difference between the two is the ability to achieve higher vacuum levels.

With their reliable operation and versatile applications, liquid ring vacuum pumps are an essential part of many industrial processes. In case of questions or for more information, we are always at your service.

Main use sectors

  • General mechanical engineering, built-in pumps
  • Process industry
  • Food production, evaporators
  • Beverage industry, filling machines
  • Automotive
  • Plastic production, extruders