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Welch 1.2 CFM CRVPro 2 Direct Drive Rotary Vane Vacuum Pump– MSE Supplies LLC

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Welch 1.2 CFM CRVPro 2 Direct Drive Rotary Vane Vacuum Pump

SKU: 3021-01

  • $ 2,91095

Buy Welch vacuum pumps from MSE Supplies at the best value. 

The new Welch CRVpro family of direct drive vacuum pumps offers increased reliability and a longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits: 

  • Runs 10°C cooler than comparable pumps. Slows corrosion. 
  • Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals. 
  • Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts. 

Additional Key Features

Low Noise Level

  • Exceptionally quiet for undisturbed work.

Forced Oil Lubrication

  • Ensures moving parts are bathed in fresh oil. Equilibrates temperature, minimizes oil breakdown, and prolongs mechanical life. 

Anti-Suck Back Valve

  • Prevents oil from being sucked into application in the event of a power failure

Gas Ballast

  • Minimizes entrained chemicals in pump oil. Protects pump from condensable liquids from application such as water, acetyl nitrile, etc. 

cUL and CE Certification 

  • Compliance with local regulations and safety directives for safety operation. 

Sized to fit your application

  • Modern and compact design to fit different applications and performance requirements. 

Dual Voltage Motor

  • Dual voltage motors meet IP44 standard. 

MSE Supplies is an authorized distributor of Welch vacuum pumps.

The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suck back mechanism and thermal overload protection. 

CRVpro2 vacuum pumps can be used for freeze drying, vacuum ovens, schlenk lines, backing turbo molecular pumps, degassing, vessel/chamber evacuation.

50 Hz (m3h / I/min) 2.5 / 41.7
60 Hz (CFM / I/min) 1.8 / 50
Without gas ballast (mbar / Torr) 3x10-4 / 2x10-4
Without gas ballast total (mbar / Torr) 3x10-3 / 2x10-3
With gas ballast total 9x10-2 / 7x10-2
Connection flanges (NW) 16
Hose Connection, inlet ID tubing (in / mm) 7/16" / 11
Ambient temperature (°C) 10-40
Noise level (50 Hz) dB (A) ≤50
Oil capacity (ml) 450
Motor speed (rpm 50 / 60 Hz) 1450 / 1740 
Motor power (kW 50 / 60 Hz) 0.27 / 0.3
Weight (kg / lbs.) 15 / 33

3021-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.

3022-01 is wired for North American 230V, 50Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.

Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

Additional information found here.