Operating principle and characteristics:
The series HGL, HG pump can be a kind of single-stage and single-cylinder rotary piston vacuum pump. It is actually tremendously improved series H rotary piston pump and includes four patents; its common capabilities have a terrific improvement.
Rotary piston vacuum pump is usually a kind of vacuum manufacturing products appropriate for pumping ordinary gases and condensable gases(whenever a gasoline ballast applied). The pump should be fitted with proper accessories if gas is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle display 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 modified repetitively, in order that pumping goal can be achieved.
The series HGL, HG pump may be a backing pump when mixed with a different substantial vacuum pump also as operate singly. It is actually extensively utilized in vacuum smelting, vacuum drying, vacuum impregnation and higher vacuum simulation testing,and so on.