Operating principle and characteristics:
The series HGL, HG pump is actually a kind of single-stage and single-cylinder rotary piston vacuum pump. It really is drastically improved series H rotary piston pump and consists of four patents; its general abilities possess a terrific improvement.
Rotary piston vacuum pump can be a type of vacuum manufacturing products suitable for pumping ordinary gases and condensable gases(whenever a gas ballast utilized). The pump must be fitted with proper add-ons if fuel is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle demonstrate in doing work principle graph: A rotary piston with slide valve across ecentric wheel driven by shaft in the housing. Piston pole can slide and swing freely in arch track. The whole 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, to ensure that pumping function can be achieved.
The series HGL, HG pump could be a backing pump when combined with a different substantial vacuum pump too as operate singly. It can be widely used in vacuum smelting, vacuum drying, vacuum impregnation and high vacuum simulation testing,and so on.


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