Working principle and characteristics:
The series HGL, HG pump is a sort of single-stage and single-cylinder rotary piston vacuum pump. It is actually greatly enhanced series H rotary piston pump and consists of 4 patents; its basic abilities possess a fantastic improvement.
Rotary piston vacuum pump can be a sort of vacuum manufacturing equipment ideal for pumping ordinary gases and condensable gases(whenever a gas ballast employed). The pump should be fitted with ideal equipment if fuel is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle demonstrate in functioning principle graph: A rotary piston with slide valve across ecentric wheel driven by shaft inside 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, in order that pumping objective may be attained.
The series HGL, HG pump is often a backing pump when mixed with another large vacuum pump also as operate singly. It is actually broadly utilized in vacuum smelting, vacuum drying, vacuum impregnation and high vacuum simulation testing,and so forth.