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Operating principle and options:
The series HGL, HG pump is often a form of single-stage and single-cylinder rotary piston vacuum pump. It really is enormously enhanced series H rotary piston pump and includes four patents; its general abilities have a great improvement.
Rotary piston vacuum pump can be a sort of vacuum production equipment appropriate for pumping ordinary gases and condensable gases(when a gas ballast utilized). The pump have to be fitted with appropriate accessories if fuel is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle show in functioning 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 transformed repetitively, so that pumping function can be accomplished.
The series HGL, HG pump may be a backing pump when combined with another higher vacuum pump also as operate singly. It can be widely utilized in vacuum smelting, vacuum drying, vacuum impregnation and substantial vacuum simulation testing,and so forth.

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