The Welch CRVpro family of direct drive rotary vane pumps is the industry leader within the direct drive vacuum pump category. Service intervals are extended from three core features:
- Cool running. By running cooler relative to competitive direct drive pumps, agressive and corrosive chemical activity is reduced.
- Large Oil Capacity. By having a larger oil reservoir relative to competitive direct drive pumps, agressive and corrosive chemicals are diluted. This reduces their chemical activity.
- Internal surface protetion. Oil sump is PTFE coated, pump module has a black oxide coated.
The Welch CRVpro family of direct drive pumps includes all the features you'd expect:
- Low noise level
- Forced OIl Lubrication
- Anti-suck back valve
- Gas Ballast
- cUL and CE Certification
- CRVpro4, CRVpro6, and CRVpro8 have dual voltage (switch selectable) motors