Vacuum Pump Manufacturers banner

Oilless Vacuum Pumps

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

Oilless pumps are used in contexts in which accidental exposure to oil could damage products or endanger people. Medical vacuum pumps are often oilless to minimize patient and instrument exposure to oil. In the fabrication of hi-tech electronics, oilless pumps may also be necessary to avoid contaminating sensitive instruments with small amounts of oil. Read More…

Oilless Vacuum Pumps Oilless vacuum pumps are devices that create vacuums in enclosed spaces without the use of oil for lubrication, as a sealant or for any other purpose. Many varieties of oilless pumps are dry vacuum pumps, but some are not. Liquid ring pumps, for example, may make no use of oil, but they are not completely dry systems.
Request for Quote

Leading Manufacturers

Michigan City, IN  |  888-925-5444

As an industry leader with over 50 years of experience providing the best vacuum pump solution for customers, DEKKER is an ISO 9001:2015 certified company that delivers superior products & service. Our custom engineered systems meet even the most demanding applications, from aeronautical to waste water & everything in between. Call DEKKER today with any questions or check out our helpful website!

Request A Quote

DEKKER Vacuum Technologies, Inc. $$$

Nashua, NH  |  800-248-8254

Today’s superior cutting edge vacuum pump products, offering reliability and high performance. Pfeiffer Vacuum is an intentional manufacturer and leading innovator of the Turbopump for high to ultra-high vacuum range. Plus, Rotary Vane Pumps, Dry Pumps, Roots pumps, Screw Pumps, Leak Detectors and more. Contact us for the best products and support available.

Request A Quote

Pfeiffer Vacuum, Inc. $$$

Fremont, CA  |  650-969-8811

Since 1976, Duniway Stockroom Corporation has offered new and used vacuum equipment. We provide hardware, valves, ion pumps, diffusion pumps, mechanical pumps, turbo pumps, vacuums sensors, gauge controls, supplies and more. We offer rebuilding services and superior customer service. For more information, check our website today!

Request A Quote

Duniway Stockroom Corp. $$$

New Bedford, MA  |  508-995-9711

Edson offers innovative vacuum pump systems for the collection and transfer of liquids and liquids with suspended solids for marine, industrial, municipal and wastewater applications. Our products include diaphragm vacuum pumps, industrial vacuum pumps, heavy-duty vacuum pumps and much more.

Request A Quote

Edson International, Pump Division $$$
placeholder image DEKKER Vacuum Technologies, Inc. Pfeiffer Vacuum, Inc. Duniway Stockroom Corp. Edson International, Pump Division

In industrial contexts, vacuum pumps are used for dry etching, solvent recovery, material handling, distilling, petrochemical processing, food manufacturing, finishing and many other processes. Oil-less dry pumps are generally less expensive than wet pumps because of lower initial investment and ongoing maintenance costs.

The cost of a dry vacuum pump failure can also be less than that of a wet pump failure, because oil or other liquid contamination of a vacuum enclosure can often be very damaging. However, oil allows for tighter seals between parts, which increases evacuation capacity. Because a dry vacuum pump cannot be sealed as well as an oil-sealed pump, their vacuum generation capacity is lower.

Dry vacuum pumps were developed in response to concerns about the threat that vacuum pump oil posed to people and the environment; historically vacuum pump oils have contained polychlorinated biphenyls, which have since been discovered to be toxic and carcinogenic.

Dry vacuum pumps avoid this problem and address concerns about pump reliability and maintenance. Dry pumps eliminate the need for contaminant disposal, which can be expensive. Because they do not require oil or fluid checks, maintenance costs are low.

Oilless vacuums vary in design but are often made of heavy-duty stainless steel because of the material's strength and resistance to contamination. Depending on the work environment and requirements, dry pumps can be equipped with vibration isolators and silencers. Some designs feature a cooling water jacket to counteract the high internal temperatures that result from the lack of an oil sealant.

Every oilless vacuum pump is a positive displacement pump, and each pump fits into one of three subcategories: rotary lobe, helical screw and claw. Each design uses two gear-synchronized rotors to trap and compress entering gases.

Rotary lobe vacuum pumps are similar to rotary vane pumps; two rolling rotors separate the chamber, compressing the gas and conveying it out. Helical screw pumps use two screw-like rotors whose threads fit together; gas becomes trapped between the flights of the screws, moved axially and is then discharged. Claw dry vacuum pumps use two claw-shaped rotors to compress the gas.

Oilless Vacuum Pumps Informational Video

 
Pumps & Valves
Featured Industries