The Role of Various Vacuum Pumps in Vacuum System

Because the performance of various vacuum pumps meet the common point of vacuuming the container, there are still differences. Therefore, it is very important to clarify the work tasks that the pump undertakes in the vacuum system when selecting the pump. The role of the pump in various work fields can be summarized as follows:

  • Work as the main pump in the system

 The so-called main pump is to directly vacuum the system to obtain the required vacuum.

  • Rough suction pump

The rough suction pump refers to the vacuum pump that reduces the pressure of the system from atmospheric pressure to reach another pumping system that can start working.

  • Backing pump

The backing pump refers to a vacuum pump that is used to maintain the fore line pressure of another pump below its maximum allowable fore line pressure.

  • Maintaining pump

Maintaining pump means that when the vacuum system is very small, the main fore pump cannot be used effectively. For this reason, an auxiliary backing pump with a lower pumping speed is added to the system to maintain the normal operation of the main pump or to maintain the low pressure vacuum pump required by the evacuated container.

  • Rough vacuum pump or low vacuum pump

Rough or low vacuum pump refers to a vacuum pump that works in the range of low vacuum or rough vacuum pressure after the pumped container pressure is reduced.

  • High vacuum pump

A high vacuum pump refers to a vacuum pump that works in a high vacuum range.

  • Ultra-high vacuum pump

Ultra-high vacuum pump refers to a vacuum pump that works in the ultra-high vacuum range.

  • Booster pump

The booster pump usually refers to the vacuum pump that works between the low vacuum pump and the high vacuum pump to increase the pumping capacity of the system in the intermediate pressure range or reduce the pumping rate of the backing pump.

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