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Liquid Ring Vacuum Pumps

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When atmosphere has been removed from an enclosure, the area within the enclosure is called a vacuum. A complete vacuum is a space devoid of pressure. In practice, it is impossible to create a complete vacuum. Read More…

Liquid Ring Vacuum Pumps Liquid ring vacuum pumps are vacuum pump systems that make use of a liquid seal to maintain the negative pressure of a vacuum. Vacuum pumps are devices that remove atmosphere from an enclosure.
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Leading Manufacturers

Tarpon Springs, FL  |  727-944-3337

Here at Vac Cubes we manufacture high quality compressed-air vacuum generators, vacuum cups and accessories. We offer solutions for a full range of applications and industries including: labeling, leak detectors, filtration, carton erecting, stacking, laminating, molding, thermoforming, vacuum bagging, and much more.

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Vac Cubes $$$

Fridley, MN  |  800-893-4235

Annovi Reverberi (A.R. Pumps) manufactures a complete range of high-pressure pumps and accessories, as well as Mono-Block motor/pump combinations for the car wash market. We are A.R. Pumps, setting a new benchmark for quality, serviceability and cost effectiveness.

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AR North America $$$

Wausau, WI  |  715-845-7867

Stainless steel vacuum pumps are our specialty. Our liquid ring vacuum pumps come with packages, single or two-stage, for easy and quick installation. Lyco Wausau’s industrial vacuum pumps are used in the food, medical, pharmaceutical, chemical and industrial applications. Call us today!

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Lyco Wausau, Inc. $$$

Clifton, NJ  |  973-249-0854

A&J is a leading supplier of vacuum technology and integrated solutions for other technologies. As a global company, our line of products is extensive and includes wet/dry pumps, turbo pumps, diffusion pumps, vacuum valves, vacuum fittings, semiconductor pumps, industrial pumps, oil sealed pumps, chemical dry pumps, liquid ring pumps and more along with the necessary fluids and controls.

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A&J Vacuum Services, Inc. $$$

Raleigh. NC  |  919-713-0880

Schmalz is a manufacturer of vacuum pumps for a variety of industries and applications. As a vacuum pump supplier, we have provided many different companies with quality industrial vacuum pumps.

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Schmalz Inc. $$$
placeholder image Vac Cubes AR North America Lyco Wausau, Inc. A&J Vacuum Services, Inc. Schmalz Inc.

No machinery can completely remove atmospheric pressure from a space, but different vacuums can create varying levels of low atmospheric pressure depending on their construction. Liquid ring vacuum pumps are not the most powerful vacuum pump systems, but they are effective and reliable.

They are used in many industrial processes including the vacuum forming of products like egg cartons and other forms of packaging. They can also be used in more complex industrial applications like soil remediation (the collection of contaminated groundwater) and petroleum refining.

Liquid Ring Vacuum Pumps Liquid Ring Vacuum Pumps - Busch LLC

Vapor recovery processes, which involve the reuptake of vapors created or released by an industrial process, are often accomplished with the use of a liquid ring vacuum pump. Liquid ring vacuum pumps are made up of a circular enclosure, a rotating vane with paddles, a set volume of liquid and openings for intake and outlet of gas from the vacuum enclosure.

The liquid in a liquid ring vacuum is often water, but it can also be oil or another liquid. Depending on the properties of the gas being evacuated, water or oil may not be appropriate because of reactivity concerns. Regardless of whatever liquid is used, the process by which liquid vacuum pumps create a vacuum is always the same.

The spinning of the rotating vane causes the liquid to form a ring around the outside of the circular enclosure. This creates an air-tight seal and individual compression chambers between each of the vane's paddles, all of which are partially submerged in the liquid at all times.

As the vane spins, it draws air through its inlet, compresses it and forces it through the outlet. The expelled atmosphere cannot rush back in through the pump because of the liquid seal.

Liquid Ring Vacuum Pumps Informational Video