Operating principle and options:
The series HGL, HG pump is really a type of single-stage and single-cylinder rotary piston vacuum pump. It can be tremendously enhanced series H rotary piston pump and involves 4 patents; its standard capabilities have a wonderful improvement.
Rotary piston vacuum pump can be a type of vacuum production products appropriate for pumping ordinary gases and condensable gases(whenever a gasoline ballast utilised). The pump needs to be fitted with appropriate equipment if gasoline 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 inside 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, so that pumping goal might be attained.
The series HGL, HG pump may be a backing pump when combined with yet another high vacuum pump at the same time as operate singly. It’s broadly utilized in vacuum smelting, vacuum drying, vacuum impregnation and 
higher vacuum simulation testing,etc.
ROTARY PISTON VACUUM PUMPS
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