Development history of vacuum pump

With the development of vacuum application, vacuum pump types have developed many kinds. Its pumping speed ranges from a few tenths of a liter per second to hundreds of thousands or millions of liters per second. As vacuum technology in production and scientific research in the field of its application of pressure range requirements are becoming wider, most of the vacuum pump composed of several vacuum pumping system to pump air together to meet the requirements of production and scientific research process, because the vacuum application department involved in the range of working pressure is very wide. Therefore, any kind of vacuum pump can not be completely applicable to all the working pressure range, only according to different working pressure range and different working requirements, use different types of vacuum pump. For the convenience of use and the needs of various vacuum processes, sometimes all kinds of vacuum pumps are combined according to their performance requirements and applied in unit type.