Operating principle and characteristics:
The series HGL, HG pump is actually a sort of single-stage and single-cylinder rotary piston vacuum pump. It can be greatly improved series H rotary piston pump and contains 4 patents; its standard abilities have a wonderful improvement.
Rotary piston vacuum pump is usually a kind of vacuum manufacturing tools appropriate for pumping ordinary gases and condensable gases(when a gas ballast utilized). The pump should be fitted with suitable accessories if fuel is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle present in doing work 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 changed repetitively, to ensure that pumping purpose may be attained.
The series HGL, HG pump is often a backing pump when combined with another high vacuum pump too as operate singly. It is widely used in vacuum smelting, vacuum drying, vacuum impregnation and large vacuum simulation testing,etc.