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…

Maintained or momentary operation Hands-free operation Plugs directly into power source No adapters or special connections On/Off foot switches are compatible with selected dry vacuum pump models. Switches handle up to 15 amps. 1233K59 and 1233K60 comes with a 3-prong U.S.…

Welch Standard Duty* vacuum pumps use dry, oil-free WOB-L® Piston technology to deliver industry-leading, strong pumping dynamics that support filtration, drying, aspiration, parts forming, and other rough vacuum applications. There are 17 models available, with free air displacement from 0.4…

The Welch belt kit is the perfect kit to have in jobsites as well as in construction sites for the urgent repair, maintenance and monitoring of vacuum pumps. It contains all the necessary tools that are required to keep the pumps running.

The Welch major repair kit contains shaft seal, intake screen, gaskets, springs, valves and spring holders, large and small metal vanes. This kit is compatible to use with 1380 vacuum pumps.

The Welch pump belthas specially formulated design and is a critical item to have in chemical laboratories to enhance the performance of various experiments and analysis.

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

The Welch rotary vane pump has specially formulated design and is a critical item to have in chemical laboratories to enhance the performance of various experiments and analysis.

Welch® Self-cleaning PTFE vacuum systems quiet and rugged vacuum pumps that provide work horse duty for years between service intervals. The self cleaning feature keeps the membranes and valves clean and dry, allowing the pump to achieve excellent base pressures and return to base pressure rapidly.…

The Welch hydrophobic 0.2 micron inline filter removes unwanted filters and harmful contaminants thus maintaining fluid purity in instrumentation systems.

The Welch pump service kit is a necessary tool kit to have in any jobsites or construction sites. This kit is compatible to use with 2545 WOB-L dry pumps.

Diaphragm pumps for chemical applications - type MPC - are chemically compatible and resistant to aggressive solvents and acid vapors which are common in laboratories. The diaphragms are made out of PTFE. The pump and connection heads are carbon fiber reinforced. Their electrical conductivity…

The Welch tubing service kit is easy to use and is mainly used for the purposes of automotive, HVAC and electrical jobs. This kit is compatible to use with 2025, 2026, 2027, 2028 vacuum pumps.

ChemStar pumps are an enhanced DuoSeal platform. The oil case features a PTFE lining to minimize contamination. All ChemStar oil sealed pumps come standard with NW connections and an inert nitrogen gas purge.

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.…

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 pump service kit is a necessary tool kit to have in any jobsites as well as in any of the construction sites. This kit is compatible to use with 2522 pumps.

The Welch belt guard and base kit is made from sturdy plastic material that prevents any wear and tear. This kit is compatible to use with 1374/1397 vacuum pumps.

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

Exhaust oil recyclers are recommended for vacuum systems with continuous pressure of 1 torr (1 mm Hg) or higher.

Welch Rebuild kit includes connecting rod, o-rings, cylinder sleeve, piston cup, rubber suction feet and retainer screws. For use with 2534B-01 pump model.

The Welch seal service kit is an ideal accessory to have in chemical laboratories and research facilities. This kit compatible to use with 2561 two-head pumps.

The Welch complete condenser assembly comes with a condenser, 1 Liter round bottom flask, tubing, support and clamp. Assembly is compatible to use with dry fast, self-cleaner pumps. Application: For Dryfast, Self-Cleaner Pumps

The Welch hydrophobic 0.8 micron inline filter removes unwanted filters and harmful contaminants thus maintaining fluid purity in instrumentation systems.

Low rotation speed for longer service life Vital parts corrosion resistant Large oil reservoir dilutes contaminants ChemStar belt-driven Vacuum Pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE…

The Welch major repair kit contains shaft seal, intake screen, gaskets, springs, valves and spring holders, large and small metal vanes. This kit is compatible to use with CRR1 and 1373 capture pumps.

Rugged oil seal pumps for a wide variety of vacuum needs, including Schlenk drying lines, freeze drying, degassing, concentrations, distillations, and more. Pull drive enables low rpm operation by reducing friction, oil temperature, and oil degradation. Its large oil reservoir minimizes…

Welch WOB-L pumps are oil-free for reduced maintenance. These WOB-L piston pumps have a high water vapor tolerance.

Exhaust oil recyclers are recommended for vacuum systems with continuous pressure of 1 torr (1 mm Hg) or higher. 1 At these pressures, conventional exhaust filters quickly saturate. The Mist Eliminator System continuously separates oil mist from the vacuum pump exhaust and actively returns the oil…

1169A95: Inlet Separator Intake separator separates liquid phase aerosols from gas stream, reducing chemical contaminants in pump oil. 1169A97: Outlet Oil Mist Separator Outlet oil separator removes oil particles from exhaust stream, minimizing oil loss to atmosphere. 1169A98:…

Welch Stainless steel centering ring with o-ring.

The Welch standard-duty diaphragm pump is a critical item to have in chemical laboratories to enhance the performance of various experiments and analysis.