Various vacuum pump in addition to satisfying performance of the container can be evacuated in common, yet having differences. Therefore, the task of the pump in the vacuum system must be clarified when selecting.
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The role of pumps in various fields of work is summarized as follows:
1. Main pump
The so-called main pump is a vacuum system is pumped directly to the container evacuated in order to meet the technical requirements needed to obtain a degree of vacuum pump .
2. Rough pump
A rough pump is a vacuum pump that starts to reduce the pressure of the vacuum system from atmospheric pressure until another pumping system can start working.
3. Foreline pump
The foreline pump is a vacuum pump that is used to maintain the pressure of the front stage of another pump below its pre-stage pressure of z* high.
4. Maintain the pump
Maintaining the pump means that when the vacuum system draws very little, the main foreline pump cannot be effectively utilized. To this end, an auxiliary fore pump with a lower pumping speed is additionally provided in the vacuum system to maintain the normal operation of the main pump or to maintain the low pressure vacuum pump required for the evacuated container.
5. Rough vacuum pump or low vacuum pump
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The rough and low vacuum pump refers to a vacuum pump that starts from the atmosphere and reduces the pressure of the pumped container and operates in a low vacuum or rough vacuum pressure range.
6. High vacuum pump
A high vacuum pump is a vacuum pump that operates in a high vacuum range.
7. Ultra high vacuum pump
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Ultra-high vacuum pumps are vacuum pumps that operate in the ultra-high vacuum range.
8. Booster pump
A booster pump is generally referred to as a vacuum pump that operates between a low vacuum pump and a high vacuum pump to increase the pumping capacity of the pumping system in the intermediate pressure range or to reduce the pumping rate of the foreline pump.