Working principle and capabilities:
The series HGL, HG pump is usually a type of single-stage and single-cylinder rotary piston vacuum pump. It truly is tremendously improved series H rotary piston pump and involves four patents; its general abilities have a wonderful improvement.
Rotary piston vacuum pump is really a kind of vacuum manufacturing gear appropriate for pumping ordinary gases and condensable gases(whenever a fuel ballast applied). The pump should be fitted with acceptable accessories if fuel is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle show 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 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 goal could possibly be achieved.
The series HGL, HG pump can be a backing pump when mixed with another high vacuum pump 
also as operate singly. It is broadly utilized in vacuum smelting, vacuum drying, vacuum impregnation and substantial vacuum simulation testing,and so forth.
