Vacuum system is composed of vacuum chamber, vacuum pump or vacuum unit, vacuum pipe, vacuum valve, trap and other vacuum components, electrical control system, etc. It is widely used in electronic semiconductor industry, photoelectric backlight module, mechanical processing and other industries. The vacuum system is usually composed of several vacuum pumps, and plays a role in different fields according to their respective characteristics.
1. MAIN PUMP:
The main pump is a vacuum pump which is used to obtain the required vacuum degree to meet the specific technological requirements. According to the different limit pressure required by the vacuum system, the limit pressure of the main pump in the selection process is generally half to one order of magnitude lower than the limit pressure required by the system.
2. ROUGH PUMP:
Coarse pumps are vacuum pumps that start at atmospheric pressure and reduce the pressure of the pumped system to the point where the main pump system can start working.
The pressure reached by the crude pump must be less than the starting working pressure of the main pump. The crude pump can also be used as a front stage pump.
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