German diaphragm vacuum pump for vacuum oven

The standard duty pumps for aqueous vapors or choose a PTFE diaphragm vacuum pump for resistance to harsh chemicals. Thorough drying of certain samples requires a deep vacuum, often produced by an oil-seal pump; a cold trap is required to protect the pump. Where sample properties permit, a lesser vacuum dry pump can work well.


he 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. 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.

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.

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

3041-01  vacuum inlet hose barb suitable for gum rubber hose from 5/8″ to 3/4″ ID, and a charge of oil.

3086E-01 comes with an explosion proof motor. Conduit wiring installation required. No cord, plug, or switch provided.

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

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