Welch CRVpro

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The CRVpro Rotary Vane Vacuum Pump by Welch is an economical starting point for labs looking to reach a deep vacuum level while maintaining varying displacement capacities.

Please contact us for pricing; we carry ALL Welch product variations!

These rotary vane vacuum pumps use DuoSeal Pump Oil to make an air-tight seal, which allows the oil to cool the moving parts. The CRVpro series is competitively priced, but keep in mind that these pumps will require regular maintenance to keep the vacuum pump in proper working order.



  • Large capacity, 10°C cooler
  • Chemical resistant
  • Deep vacuum
  • Oil-cooled

Larger capacity, 10° cooler.

These pumps run about 10°C cooler and have a 40% larger oil capacity than comparable pumps from competitors. The cooler operating temperature means less corrosion for the user. Enhanced reliability and less frequent maintenance are all exciting benefits of the Welch CRVpro, and this is why we are happy to recommend it to our customers.

Chemical resistant.

The internals of the CRVpro are also coated with a chemical-resistant compound which protects non-moving parts. This is another important, cost-saving benefit for you down the road.

Suited to a variety of tasks.

Some of the applications for which this pump is recommended are: degassingvacuum ovens (such as those from Cascade, Across International, and others)concentrators and freeze drying.*

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