Working principle and features:
The series HGL, HG pump is actually a type of single-stage and single-cylinder rotary piston vacuum pump. It truly is considerably enhanced series H rotary piston pump and involves four patents; its common capabilities possess a wonderful improvement.
Rotary piston vacuum pump can be a sort of vacuum manufacturing tools ideal for pumping ordinary gases and condensable gases(when a gasoline ballast applied). The pump have to be fitted with suitable equipment if gas is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle present 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, so that pumping goal may very well be accomplished.
The series HGL, HG pump is usually a backing pump when mixed with yet another substantial vacuum pump also as operate singly. It 
is widely used in vacuum smelting, vacuum drying, vacuum impregnation and large vacuum simulation testing,and so forth.
ROTARY PISTON VACUUM PUMPS
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