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CRVpro8 Direct Drive Rotary Vane Vacuum Pump

CRVpro8 Direct Drive Rotary Vane Vacuum Pump

Product Advantages

  • 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.



Product Details

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

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

Suitable applications include freeze drying, degassing, vacuum ovens and concentrators.

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


  • Free Air Displacement @ 50 Hz, m³/hr (L/min): 8 (1)
  • Ultimate Pressure, torr (mbar): 4x10⁻⁴ (5x10⁻⁴)
  • Noise Level, dBA: 50
  • Motor Speed, RPM, @50Hz : 1450
  • Motor Power, HP (kW): 0.4 (0.5)
  • Oil Capacity, mL: 1000
  • Connection Flanges: NW 16
  • Inlet Hose Connection: 5/8" to 3/4"
  • Weight, lbs (kg): 49.6 (22.5)
  • Dimensions, LxWxH, in (mm): 18.2x6.1x9.1 (463x157x230)


Hong Kong Labware Co. Ltd is the authorized distributor of Welch’s product in HK & Macau.


Accessories, other sizes or models are available. For detail, please contact HK Labware or visit to


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