| PRINCIPAL OF OPERATION
These are oil-immersed, rotary vane type pumps. The rotor with two spring loaded vanes, Is mounted eccentric in the stator body, As the rotor, rotates the vanes sweep the crescent shape, air space twice in each revolution. There is in-bulit non-return value which prevents back flow of air. Manufactured from graded material, all moving parts are precisely machined, ground and assembled with close tolerances. This results in increased efficiency and long trouble free operating life.
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