Since the vacuum pump is so important, we should not underestimate it in the process of using it. We must pay attention to the use and maintenance of the vacuum pump in our daily work.
Cavitation is caused by the vaporization of liquids. Liquid molecules escape the liquid name and become inside of gas molecules, which is called "gasification".
If the liquid pressure on both sides of the impeller does not count the cross-sectional area of the shaft or the influence of the impeller rotation on the pressure distribution