بلوئر هوا | بلوئر صنعتی فروش و تعمیر انواع بلوئر هوا و بلوئر صنعتی
positive displacement pumps
Roots blower is a kind of positive displacement pumps. The impellers, which keep a film-thin clearance between each other, rotate in the casing without contacting each other to transfer the gas from the suction end to the discharge end through the inner periphery of the casing.
