Vacuum pump oil is a kind of lubricating oil specially developed for vacuum pump of vacuum equipment. It is divided into mineral oil and synthetic oil, which is the key of vacuum pump. Vacuum pump oil is not only used as a medium to obtain vacuum, but also for lubrication, cooling and sealing of mechanical friction points. Good vacuum pump oil can often obtain higher vacuum degree and service life. Here are the five performance indicators of vacuum pump oil, please remember!

The performance index of vacuum pump oil is as follows

1. At high temperature, the saturated vapor pressure is lower and the volatile components are less.

2. Minimum water content and water absorption.

3. There should be a certain viscosity, and the change with temperature is small (viscosity temperature rise curve is smooth).

4. It has good lubrication performance and good crack resistance under mechanical stress.

5. Corrosion resistance, oxidation resistance, chemical stability.