Unity Glass Industry

oil sealed rotary high vacuum pumps are a type of positive displacement pump widely used in applications requiring a high vacuum. 

oil sealed rotary vacuum pumps operate by trapping a volume of gas and moving it from the intake to the exhaust, where it is expelled.

Applications :
-distillation
-dehydration and filteration processes.
-exhausting electronic tubes - Gls lamps-mercury vapour lamp and tubes
-vacuum metallurgy-vacuum sublimation-vacuum impregnation - thin film coating
-freeze drying of foods