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Welch™ CRVpro Direct Drive Rotary Vane Vacuum Pump

Offers increased reliability and longer service interval than direct drive rotary vane vacuum pumps

Supplier:  Welch™ 308201

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Catalog No. 01-184-156

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

Ultimate pressure

  • Without gas ballast partial: 5 x 10−4 mbar (4 x 10−4 Torr)
  • Without gas ballast total: 2 x 10-−3 mbar (1.5 x 10−3 Torr)
  • With gas ballast total: 7 x 10−2 mbar (5 x 10−2 Torr)


cUL and CE
UK-plug; BS1363 and EU-plug; CEE 7/4
22.5 kg
60 Hz
158 L/min. (at 60 Hz)
1450 rpm at 50 Hz; 1740 rpm at 60 Hz
46.3 x 15.7 x 23.0 cm (18.2 x 6.1 x 9.1 in.)
50 dB
49.6 lb.
Vacuum Pump
Rotary Vane Vacuum Pump
230 V
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