1. The special oil for vacuum pump has a certain viscosity. The high or low viscosity determines the sealing performance of the vacuum pump. The low viscosity makes the sealing performance worse. If the viscosity is too high, the friction between the blade and the cylinder body will be increased, and the lubrication will become worse. At the same time, the rotation of the rotor will become difficult, the pressure of the motor will become higher and higher, and the oil temperature will become higher and higher. The increase of oil temperature will accelerate the emulsification degree of pump oil, which will affect the vacuum degree. Can rotary vane vacuum pump use oil?
2. The chemical properties of the special oil for vacuum pumps tend to be more stable, and the contents of water, water-soluble acid, insoluble alkali and other impurities are much smaller. The use of the special oil can effectively avoid the problem of replacing the vacuum pump oil many times and ensuring the cleanliness of the pump.
3. The saturated vapor pressure of the special oil for vacuum pumps should be low, and the volatile lightweight neptunium should be less. If ordinary vacuum pump oil or engine oil is easy to volatilize, the use of non-vacuum pump oil is facing the situation of frequent refueling.
From the above points, it can be seen that the use of regular vacuum pump oil can effectively prevent the emulsification, carbonization of pump oil and other adverse factors to the vacuum pump, fundamentally solve the difficulty of maintenance of the vacuum pump, improve the service life of the vacuum pump.
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