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December 9, 2020

Operating principle and attributes:
The series HGL, HG pump is actually a form of single-stage and single-cylinder rotary piston vacuum pump. It can be significantly improved series H rotary piston pump and contains 4 patents; its basic capabilities have a terrific improvement.
Rotary piston vacuum pump is a kind of vacuum manufacturing gear suitable for pumping ordinary gases and condensable gases(whenever a fuel ballast made use of). The pump must be fitted with acceptable add-ons if fuel is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle demonstrate 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 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 changed repetitively, to ensure pumping objective can be accomplished.
The series HGL, HG pump can be a backing pump when combined with a further higher vacuum pump as well as operate singly. It is actually widely used in vacuum smelting, vacuum drying, vacuum impregnation and high vacuum simulation testing,etc.