Liquid Ring Vacuum Pumps

A reliable source for Vacuum Pump information and leading Vacuum Pump Companies & Manufacturers.

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

Boise  |  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. $$$

Rutherford  |  888-222-9940

Airtech is a leading manufacturer/supplier of various types of quality dry piston vacuum pressure pumps, rotary vane pumps (lubricated, dry), liquid ring vacuum pumps. We possess vast knowledge as a vacuum specialist. Serving medical, dental, food packaging and other industries. US warehousing.

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Airtech, Inc. $$$

Milwaukee  |  217-222-5400

Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.

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Gardner Denver, Inc $$$

Gardena  |  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 $$$

Bay Minette  |  251-937-5900

Quincy Compressor is your number one source for high-quality, reliable vacuum pumps. We have nearly 100 years of experience providing vacuum pumps to businesses across various industries across the USA and the world. We have various models to choose from, ensuring you’ll be able to find the one that suits your application’s demands. For uncompromising reliability and unbeatable performance, choose Quincy.

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Quincy Compressor, Inc. $$$

Milwaukee, WI  |  217-222-5400

Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.

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Gardner Denver, Inc. $$$

Gardena, CA  |  310-7634-7929

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 $$$

Bay Minette, AL  |  251-937-5900

Quincy Compressor is your number one source for high-quality, reliable vacuum pumps. We have nearly 100 years of experience providing vacuum pumps to businesses across various industries across the USA and the world. We have various models to choose from, ensuring you’ll be able to find the one that suits your application’s demands. For uncompromising reliability and unbeatable performance, choose Quincy.

Request A Quote

Quincy Compressor, Inc. $$$

Rutherford, NJ  |  888-222-9940

Airtech is a leading manufacturer/supplier of various types of quality dry piston vacuum pressure pumps, rotary vane pumps (lubricated, dry), liquid ring vacuum pumps. We possess vast knowledge as a vacuum specialist. Serving medical, dental, food packaging and other industries. US warehousing.

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Airtech®, Inc. $$$
placeholder image Pneumotech Inc. Airtech, Inc. Gardner Denver, Inc McKenna Engineering Quincy Compressor, Inc. Gardner Denver, Inc. McKenna Engineering Quincy Compressor, Inc. Airtech®, 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