Working principle and characteristics:
The series HGL, HG pump is usually a sort of single-stage and single-cylinder rotary piston vacuum pump. It can be significantly enhanced series H rotary piston pump and incorporates 4 patents; its general capabilities possess a terrific improvement.
Rotary piston vacuum pump is actually a sort of vacuum production gear ideal for pumping ordinary gases and condensable gases(when a gasoline ballast utilized). The pump has 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 demonstrate in operating 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 altered repetitively, so that pumping purpose might be achieved.
The series HGL, HG pump may be a backing pump when mixed with a further high vacuum pump too as operate singly. It is actually broadly used in vacuum smelting, vacuum drying, vacuum impregnation and high vacuum simulation testing,etc.


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