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Operating principle and functions:
The series HGL, HG pump is really a type of single-stage and single-cylinder rotary piston vacuum pump. It is actually considerably improved series H rotary piston pump and consists of 4 patents; its common capabilities possess a excellent improvement.
Rotary piston vacuum pump is a sort of vacuum production equipment suitable for pumping ordinary gases and condensable gases(whenever a fuel ballast used). The pump have to be fitted with ideal equipment if gas is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle display in working principle graph: A rotary piston with slide valve across ecentric wheel driven by shaft inside the housing. Piston pole can slide and swing freely in arch track. The entire pump chamber is divided into chamber A and chamber B by piston. When shaft rotates the volume of chamber A and chamber B are modified repetitively, to ensure that pumping purpose could be accomplished.
The series HGL, HG pump can be a backing pump when combined with yet another higher vacuum pump as well as operate singly. It’s broadly utilized in vacuum smelting, vacuum drying, vacuum impregnation and higher vacuum simulation testing,and so on.


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