Operating principle and functions:
The series HGL, HG pump is actually a sort of single-stage and single-cylinder rotary piston vacuum pump. It really is considerably improved series H rotary piston pump and incorporates 4 patents; its common capabilities possess a fantastic improvement.
Rotary piston vacuum pump is actually a kind of vacuum manufacturing gear appropriate for pumping ordinary gases and condensable gases(when a gas ballast utilised). The pump need to be fitted with ideal add-ons if fuel is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil.
Operation principle demonstrate 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 altered repetitively, to ensure that pumping goal could possibly be attained.
The series HGL, HG pump might be a backing pump when mixed with a further substantial vacuum pump likewise as operate singly. It’s extensively utilized in vacuum smelting, vacuum drying, vacuum 
impregnation and substantial vacuum simulation testing,and so forth.
ROTARY PISTON VACUUM PUMPS
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