With the application of vacuum technology in the field of production and scientific research, the pressure range of vacuum technology is becoming wider and wider. Most of them need several vacuum pumps to form a vacuum pumping system to work together to meet the requirements of production and scientific research. Because the range of working pressure involved by vacuum application department is very wide, so any vacuum application department can not meet the requirements of production and scientific research. One type of vacuum pump can not be fully applicable to all working pressure ranges. It can only use different types of vacuum pumps according to different working pressure ranges and different working requirements. In order to use conveniently and meet the needs of various vacuum process, sometimes all kinds of vacuum pumps are combined according to their performance requirements for unit type application.
Common vacuum pumps include dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, rotary vane pump, Roots pump and diffusion pump. These pumps are indispensable main pumps in the application of vacuum technology in various industries of our national economy. In recent years, with the sustained and high-speed development of China's economy, the downstream application industry of vacuum pumps has maintained a rapid growth momentum. At the same time, the vacuum pump industry in China has achieved sustained, stable and rapid development driven by the constant expansion of the application field of vacuum pumps and other factors.
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