Working principle and attributes:
The series HGL, HG pump is often a kind of single-stage and single-cylinder rotary piston vacuum pump. It can be enormously improved series H rotary piston pump and consists of four patents; its standard abilities possess a good improvement.
Rotary piston vacuum pump is often a kind of vacuum production gear suitable for pumping ordinary gases and condensable gases(whenever a gas ballast utilised). The pump need to be fitted with acceptable add-ons if gas is wealthy in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle show 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 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 transformed repetitively, to ensure pumping goal can 
be achieved.
The series HGL, HG pump is often a backing pump when mixed with one more high vacuum pump at the same time as operate singly. It’s extensively utilized in vacuum smelting, vacuum drying, vacuum impregnation and higher vacuum simulation testing,and so forth.
ROTARY PISTON VACUUM PUMPS
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