Liquid Ring Vacuum Pumps

They are typically used as a vacuum pump, but can also be used as a gas compressor. The function of a liquid-ring pump is similar to a rotary vane pump, with the difference being that the vanes are an integral part of the rotor and churn a rotating ring of liquid to form the compression-chamber seal. They are an inherently low-friction design, with the rotor being the only moving part. Sliding friction is limited to the shaft seals. Liquid-ring pumps are typically powered by an induction motor.


  • Power generation equipment
  • Petrochemical
  • Seawater deaeration
  • Pharmaceutical
  • Ground water remediation/vapor extraction
  • Food production
  • Aerospace
  • Food and Beverage
  • Pulp and Paper
  • Environmental
  • Oil & Gas
Phillip Hall

Service you can count on

“Your service was unbelievable from initial research and engineering, through to fabrication, installation, and long term field service.”

McKenna Engineering offers sales, service, and repair to Liquid Ring Vacuum Pumps from the following manufacturers:


Tuthill Corporation has been manufacturing pumps, meters, vacuum systems, and blowers for use in a variety of markets including agriculture, construction, chemical, water & waste water, energy & power, and medical.


For more than 110 years, Nash as manufactured liquid ring vacuum pumps, compressors that deliver value by enhancing performance, reliability and efficiency. Nash delivers the lowest cost of ownership for its products in industries such as oil and gas, pulp and paper, chemical, electric power, mining and more.


SIHI Pumps is one of the world leaders in liquid ring vacuum pump, liquid ring compressor technology, and dry running vacuum pumps. SIHI liquid ring vacuum pump, compressor technology, and dry running vacuum pumps provides reliable, trouble free operation for many industries & applications.

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310 736-6901

General Engineering

License No. 830191