Dry Vacuum Pumps

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

Liquid ring vacuum pumps, for example, function by creating a ring of liquid around the vacuum pump’s enclosure which prevents evacuated atmosphere from re-entering the vacuum enclosure. Read More…

Dry Vacuum Pumps Dry vacuum pumps are devices that create a vacuum without the use of liquids. Many vacuum pumps require the use of oils for lubrication or other liquids to create an air-tight seal.

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.

Dry vacuum pumps, because they don't require a steady level of liquid or lubrication, require much less maintenance than other vacuum pump models. Some of the liquids used in connection with vacuum pumps historically have posed health and environmental threats.

Many vacuum pump oils produced before the 1980s contained polychlorinated biphenyls, which were later determined to be toxic, carcinogenic and an environmental pollutant. Though the use of this chemical in vacuum pumps has since become limited, dry vacuum pumps completely eliminate risks posed by lubricants or liquid sealants to their users and the environment.

Dry vacuum pumps are often used in high tech processes. Pharmaceutical processing, laboratory vacuum degassing, drying, vacuum impregnation and filtration, evaporation and distillation all make use of vacuum pumps.

Industrial processes like crystallization of certain materials, chemical processing, solvent recovery and vapor recovery are other settings in which dry vacuum pumps can be used.

Because any pump that makes no use of liquid can be called a dry vacuum pump, the range of machines that fall into the category of dry vacuum pumps is quite wide. Small vacuum pumps, laboratory vacuum pumps, rotary vane vacuum pumps, high vacuum pumps and medical vacuum pumps can all be dry models, but some of them can make use of liquids.

Every process that calls for the use of a dry vacuum pump requires a configuration that is appropriate for the task.

A dry vacuum pump used to evacuate atmosphere from a lab will be different from a pump used to reclaim gasoline vapors at a fuel station. They will differ in size, the shape and configuration of their fans, the number of fans, the number of fan blades, the level of negative pressure that can be achieved in the vacuum enclosure and many other factors.

What all of the varying dry vacuum pump configurations have in common is that they all work by removing atmosphere from an enclosure and preventing it from returning. Blades that spin around an enclosure create a small area of negative pressure, and atmosphere from within the enclosure rushes in to correct the imbalance. That atmosphere is forced out of an outlet, and more atmosphere from the enclosure rushes in to try to correct the imbalance. This cycle continues until the vacuum capacity of the pump is reached.

Dry Vacuum Pumps Informational Video