Some rotary vane vacuum pump operators in order to save money and use the general oil instead of the use of vacuum pump special oil, which to a certain extent not only increased the use of vacuum pump, repair costs, but also seriously affected the service life of the vacuum pump.
1. vacuum pump special oil has a certain viscosity, the viscosity of the concavo-convex decision of the vacuum pump sealing, viscosity is too small, sealing is not good; too high viscosity, will increase the conflict between the pump blade and cylinder block strength, smooth effect will be worse, together, rotor rotation will become difficult, the pressure of the motor will change The higher the temperature, the higher the oil temperature. The increase of oil temperature will accelerate the emulsification degree of the pump oil, and really affect the concave and convex of the vacuum degree.
2.The chemical properties of special oil for vacuum pump tend to be more stable, and the contents of water, water-soluble acid, insoluble alkali and other impurities are much smaller. The use of special oil can avoid the doubts of replacing vacuum pump oil repeatedly and ensuring the cleanliness of the pump.
3. The saturated vapor pressure of the special oil of the vacuum pump is low and the evaporated light distillate is less. If it is a general vacuum pump oil or oil is very simple evaporation, the use of non-vacuum pump oil is often facing the situation of refueling.vacuum-pump-application-in-vacuum-degassing
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