Operating principle and attributes:
The series HGL, HG pump is usually a kind of single-stage and single-cylinder rotary piston vacuum pump. It’s drastically improved series H 
rotary piston pump and includes four patents; its general capabilities have a wonderful improvement.
Rotary piston vacuum pump is a type of vacuum manufacturing gear suitable for pumping ordinary gases and condensable gases(when a gas ballast used). The pump has to be fitted with proper accessories if gas is rich 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 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 altered repetitively, to ensure pumping objective can be achieved.
The series HGL, HG pump might be a backing pump when combined with an additional high vacuum pump too as operate singly. It really is broadly utilized in vacuum smelting, vacuum drying, vacuum impregnation and large vacuum simulation testing,and so forth.
ROTARY PISTON VACUUM PUMPS
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