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December 9, 2020

Operating principle and capabilities:
The series HGL, HG pump is actually a form of single-stage and single-cylinder rotary piston vacuum pump. It is actually drastically improved series H rotary piston pump and involves 4 patents; its common abilities possess a wonderful improvement.
Rotary piston vacuum pump can be a sort of vacuum production products ideal for pumping ordinary gases and condensable gases(when a fuel ballast used). The pump need to be fitted with suitable add-ons if fuel is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle present in operating 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 purpose could be achieved.
The series HGL, HG pump may be a backing pump when mixed with one more high vacuum pump as well as operate singly. It’s broadly used in vacuum smelting, vacuum drying, vacuum impregnation and substantial vacuum simulation testing,etc.