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.

Leading Manufacturers

Randolph, NJ  |  973-252-8200

Experts in the design of process liquid ring vacuum pump systems since 1986. Reliability is our primary goal. We design the most advantageous vacuum system for each customer’s objectives. Our expertise includes Liquid Ring, Rotary Vane, Once-Thru-Oil Rotary Vane and Dry Vacuum Pumps, plus multi-stage hybrid designs and vapor extraction/recovery.

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Wintek Corporation $$$

Gardena, CA  |  310-667-4375

McKenna Engineering has over four decades years of experience developing vacuum pump solutions for every industry under the sun, around the world. Markets served include chemical, aerospace, high tech, and many more. We are an ISO 9001:2015 certified company. When you choose McKenna, you choose top-notch services and products that are delivered on time. Contact us today to get started with us!

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McKenna Engineering $$$

Greentown, PA  |  570-676-3500

Vacuum Pump Rebuilders and Welding Services: Offering vacuum pump sales, vacuum pump service, vacuum pump rebuilding and a full selection of vacuum pump parts for most makes and models of vacuum pumps including Alcatel, Busch, Edwards, Kinney, Leybold, Precision, Varian and Welch. We specialize in providing high quality rebuilt vacuum pumps that are affordable and dependable.

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Vacuum Pump Rebuilders & Welding Services $$$

Kalama, WA  |  360-574-6722

Somarakis, Inc. supplies the very best in high performance positive displacement blowers, screw compressors and vacuum pumps. Based on 42 years of experience, Somarakis offers client-orientated solutions in the field of twin shaft rotary piston machines for a number of industrial vacuum pump applications. Committed to quality and innovation, Somarakis, Inc. has the solution to your vacuum pump challenge.

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Somarakis, Inc. $$$

Boise, ID  |  208-362-4721

Pneumotech Inc. Is the Nations Foremost Manufacturer of Compressed Air & Vacuum Systems. We offer innovative cost-effective solutions to your compressed air and vacuum system requirements. As a further service benefit to you; "the Customer" we also offer automated lubrication systems, design, repair, installation, parts, components, systems and lubricant sales.

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Pneumotech Inc. $$$
placeholder image Wintek Corporation McKenna Engineering Vacuum Pump Rebuilders & Welding Services Somarakis, Inc. Pneumotech 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