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Vacuum pump oil Edwards Ultragrade Performance 70 - 4L

Description

Vacuum pump oil Edwards Ultragrade Performance 70 - 4L

Edwards Ultragrade 70, 4L mineral oil has been specially developed for use in vacuum pumps, particularly for large pumps in demanding, frequently changing operating conditions. The unique hydrotreatment process, which removes nitrogen, sulphur, oxygen and aromatic hydrocarbons, produces a virtually pure base oil. In combination with additives, Ultragrade 70 offers improved vacuum performance, thermal and oxidative stability and rust inhibition. The antioxidants contained in the oil allow the pump to withstand high operating temperatures without the oil degrading, resulting in longer oil change intervals. Ultragrade 70 is the best choice for demanding applications and guarantees optimum performance of your vacuum pump.

Oil type Ultragrade 70
Vapour pressure mbar 20 °C 2,1 × 10-⁷
Vapour pressure mbar 100 °C 3 × 10-³
Uses
Two-stage rotary vane pumps with high capacity, especially when used under high load or fast duty cycles.
Molecular weight 600
Specific weight at 15 °C 0,86
Viscosity cSt at 20 °C 222
Viscosity cSt at 40 °C 70
Pitch point °C -12
Flash point °C 230
Auto-ignition point °C 360
Thermal stability good
Oxidation resistance good
Chemical resistance sufficient
Radiation resistance sufficient