Welch Premium pump oil comes in five different sizes:1 liter (800995-01)5 liter (800995-05)10 liter(800995-10)20 liter (800995-20)200 liter (800995-200)A triple distilled hydrocarbon oil using severely hydrotreated base stock is designed to resist breakdown at higher RPMs and operating temperatures of direct-drive vacuum pumps. The hydrotreating virtually eliminates aromatics and sulfur to give good resistance to sludge and varnish formation overtime in corrosive environments. Premium oil enables direct-drive vacuum pumps to maintain the highest vacuum performance over time. The oil is light yellow.
Pump oil can become contaminated with ingested fluids and vapors. Use recommended pump oil and change your pump oil regularly. Cloudy and discolored oil will lead to premature pump failure.
Specially triple distilled mineral oil for the operation of CRVpro rotary vane pumps from Welch.
The oil fulfils the following functions in the vacuum pump:
- lubricating the sliding parts, such as rotor, vane, radial shaft seals
- sealing the moving parts against the stator wall to reduce leaks
- conducting the heat of compression to the metal walls (cooling)
The oil transports the polluted particles and corrosive media and thus effects continuous cleaning of the internal surfaces.
Please note that certain types of vacuum pump oils may not be used for certain applications. Please contact our sales team if you have questions.
Technical Data
Article Number | 800995-20 |
Vapour Pressure at 20°C (mbar) | 5x10-3 |
Viscosity at 40°C (cST) | 94 mm2/s |
Flash Point (°C) | 265 |
Relative Density at 15°C (g/ml) | 0.87 |
Service / Accessories
- Oil Mist Separator AKD 16 for CRVpro - 320015
- Oil Mist Filter OME 10/16 for CRVpro - 700010
- Oil Drain Kit for CRVpro - 340011
- Oil Mist Separator AKD 25 for CRVpro - 320017
- Oil Mist Filter OME 10/25 for CRVpro - 700011



