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Extraction & Vacuum Extractors, complete systems and vacuum. |
Temperature Control Chilling, freezing, drying and ovens. |
Separation Evaporation, distillation and filtration. |
Life Science & Safety Incubation, containment and sterile work. |
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Extractor Parts & Accessories Everything to build or service a closed loop system. |
Equipment Parts Replacement parts and accessories by equipment. |
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Supplies Solvents, fluids, media and safety. |
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Shop by brand Every brand we carry.                       |
As a global leader in vacuum technology, Welch Pumps is renowned for it's solution-oriented vacuum expertise.
BTpro 40 & 70 + BTpro100, 170 & 2163 Welch’s BTpro vacuum pump series has a flow and vacuum level to provide fast performance for your size of rotary evaporator, glass reactor, purge oven, or winterization filtration apparatus.
Welch Chemical Duty Diaphragm Pumps, cUL Listed With Explosion Proof Motor
Welch Chemical Duty vacuum pumps use dry, oil-free membrane (diaphragm) technology to deliver faster pumping dynamics that support filtration, evaporation, drying, degassing, impregnation, and other rough vacuum applications
The Chemstar or N series is a belt driven pump with a PTFE coated oil case, stainless steel valves and a nitrogen bubbler feature. It is used by labs with a nitrogen supply and allows the user to blow nitrogen through the oil case while processing extremely corrosive gasses. Primary benefits of the 1400N ChemStar is the oil case is resistant to corrosion,...
Welch CRVpro vacuum pumps are two-stage, oil-sealed, direct-driven rotary vane vacuum pumps.
Clean operation (oil free), low cost of ownership, highest reliability – these are just a few benefits that customers can appreciate when they use a diaphragm pump for laboratory or industrial applications. With a broad range of diaphragm pumps – ultimate vacuum from 75 to 1 mbar and peak flow rates up to 138 l/min – Welch offers specific pump families...
Welch Chemical Duty vacuum pumps use dry, oil-free membrane (diaphragm) technology to deliver faster pumping dynamics that support filtration, evaporation, drying, degassing, impregnation, and other rough vacuum applications.Note: Government regulations require Welch to obtain an end-user certificate this product if either used or exported outside of the...
Pump a wide range of solvent and acid vapoursImproved ultimate vacuum – evaporate high boiling point solventsPerform more work – up to 30% faster process timesIdeal for evaporation type applications – especially benchtop rotary evaporators
Use Welch ProBoost in conjunction with a backing pump like the CRVpro to get deeper vacuum and higher flow.
Digital or analog vacuum read-outInlet and outlet traps to protect the pump and exhaust line from liquidsProminent emergency "bump stop" switch for bumping/foaming controlAll models are 35 l/min at 60Hz (29 l/min. at 50Hz)
