Filters trap exhaust oil mist and reduce pump noise. They are supplied with housing and replaceable filter.

High contamination tolerance Vital parts corrosion resistant Reduced frictional wear Nitrogen purge standard Easy attachment of accessories Recommended for use with gases such as HCl, HBr, Br_2, Cl₂, O₃, HOAC,…

High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing…

Economical Oil Free Adjustable Vacuum / Pressure Use these affordable oil-free pumps to provide convenient vacuum throughout the lab. Welch WOB-L piston pumps provide adjustable vacuum for filtration, SPE, vacuum ovens, and more. These pumps are an efficient alternative to water…

DuoSeal rotary vane vacuum pumps are proven performers with low pump RPM to ensure long service life with durable precision machined steel rotor, cast iron intake, exhaust ring and metal vanes. DuoSeal models are used on the most demanding service applications such as purge pump on absorption…

The Welch chemical-resistant diaphragm pump with a flow rate of 33 LPM utilizes compressed air for its operation and the pneumatic valve allows the user to monitor the operating of the device.

The Welch NW 16 acid trap adapter kit is designed to use as an accessory to vacuum pumps and is a must-have tool to have in any jobsite and construction environments.

MP models use aluminum pump heads suitable for pumping non-reactive gases/vapors such as air, noble gases and water vapor. PTFE diaphragms are used because they offer longer lifetime than conventional elastomer diaphragms. The diaphragms consist of a PTFE membrane sandwiched to a strong non-wetted backing.

The Welch pump repair kit is a must-have tool kit in any jobsite and in construction sites. This kit is compatible to use with 2052/54/62/64/67 PTFE dry pumps.

MP models use aluminum pump heads suitable for pumping non-reactive gases/vapors such as air, noble gases and water vapor. PTFE diaphragms are used because they offer longer lifetime than conventional elastomer diaphragms. The diaphragms consist of a PTFE membrane sandwiched to a strong non-wetted backing.

The Welch NW 25 to NW 40 reducing fitting is made from stainless steel material that offers added durability and strength. This reducer fitting is designed to use with lmvac vacuum systems.

Welch Belt-drive vacuum pumps are known for their ruggedness world-wide in the most demanding applications.

Tune-able Vacuum for Chemical Applications - filtrations and volatile solvent evaporations - rotovaps, concentrators, & vacuum ovens. Achieve precise vacuum control for organic evaporations with Welch's Advanced Vapor Management (AVM). Choose from six dry PTFE vacuum pump models with flows…

Durable, chemical resistant PTFE construction Easy to operate and maintain Use Welch ® DryFast ® diaphragm vacuum pumps for tough applications requiring chemical resistance. DryFast’s Advanced Vapor Management controls vacuum for precise distillations using handy…

The Welch replacement gasket has a leak-proof design and construction that enhances durability. This gasket is compatible to use with 1417A exhaust filters.

DirecTorr Gold oil is a synthetic hydrocarbon oil put through a double molecular distillation process. Gold oil is extremely stable under high temperature, has excellent resistance to chemical attack and provides superior protection for the pump's internal metal components. Recommended for…

Product Details Corrosion Resistant Fitted Explosion Proof Motor (Class I, Groups C & D; Class II Groups F & G) with CSA/UL Mark Portable Suggested Applications Vacuum Filtration Vacuum Oven Welch corrosion-resistant diaphragm pumps are driven by…

The Welch dry diaphragm pump consists of an air-cooled technology and is compatible to use with high vacuum and Schlenk lines. It also provides easy access to any backing pumps.

ChemStar Belt-driven vacuum pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE surfaces dilutes contamination and the low pump rotational speed lessens friction to reduce operating temperature and chemical effects.…

Welch Belt-drive vacuum pumps are known for their ruggedness world-wide in the most demanding applications.

The Welch replacement filter element is used for the elimination and removal of very fine and small particles that is normally not filtered through regular filter paper.

Welch Major repair kit includes everything in minor repair kit plus large and small metal vanes for use with Duoseal® vacuum pumps.

The Welch cut length vacuum hose measuring 3/16 Inch x 13/16 Inch x 10 Feet, is suitable for use with vacuum pump. It ensures smooth functioning and long lasting usage. This accessory is made of sturdy material which offers enhanced durability.

Powerful vacuum for low temperature processing Economical, oil-free, ecologically sound Excellent solvent / acid resistance Use these durable dry diaphragm pumps to provide high flow, deep vacuum for your application. Welch Model 2052 pumps resist corrosive and solvent fumes to…

Welch ISO NW inlet connectors made with aluminum for high vacuum pumps.

Welch Belt-drive vacuum pumps are known for their ruggedness world-wide in the most demanding applications.

The Welch major rotary vane pump repair kit is used for the maintenance, repair and monitoring of vane pumps. This kit is compatible to use with ChemVac 8960 pumps.

The Welch exhaust silencer has a sturdy and impact-resistant construction for added durability. It is compatible to use with 2012, 2022, 2030, 2015, 2017 pumps.

The Welch seal service kit is an ideal accessory to have in chemical laboratories and research facilities. This kit compatible to use with 2580 and 2585 WOB-L dry pumps.

Famous Durability Deep Vacuum to 10-4 torr Low RPM for cooler operation Address a wide variety of laboratory vacuum needs with these rugged oil-seal pumps. Use DuoSeal vacuum pumps for Schlenk drying manifolds, freeze drying, vacuum ovens, glove boxes, degassing, concentrations,…

The Welch replacement element has a leak-proof design and construction that enhances durability. This element is compatible to use with 1420H-20 acid neutralization traps.

For rebuild/repair of Welch small 4-head Chemical Duty Dry Membrane Vacuum Pumps, including Models MPC201T and MPC1010.  Contains 4 membranes, 8 valves, and affiliated O-Rings