Liquid Ring Vacuum Pumps

Liquid ring vacuum pumps are a safe and reliable workhorse, capable of creating vacuums down to 33 mBar while handling high volumes of vapours, condensable gases and liquids with ease.

Prized for their simplicity, reliability, and versatility, their off-centre impeller uses a ‘liquid ring’ to compress and convey gases or vapours, producing near-isothermal operation and minimal wear. With only one moving part in the fluid cavity, maintenance is straightforward, uptime is high, and processes – from distillation and drying to filtration, plastic extrusion, and even live fish transfer – run smoothly.

Their adaptability extends to temperature management, fluid choice, and material construction, making them a trusted solution across a wide range of applications.

Vacuum pump technology is also proving highly effective in cutting energy, water and effluent discharge costs.

Historically, liquid ring pumps relied on service water that often went straight to drain – cheap and convenient at the time. Today, rising water and effluent treatment costs make this approach expensive. In addition, their tolerance for fluctuating process conditions reduces power consumption.

With industry facing growing pressure to reduce utility use and environmental impact, vacuum pumps are proving highly effective in cutting energy, water and effluent discharge costs.

Full recirculation 'plug and play' vacuum systems build on this proven performance, further minimising energy use, water consumption, and effluent output – reducing water consumption by up to 80%.

You can read more about liquid ring vacuum pumps and full recirculation systems on our website.

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