Automatic Self-priming Centrifugal Pump Device

Automatic self-priming centrifugal pump device used in a variety of vertical,horizontal centrifugal pump. When sent to the liquid in the pump suction impeller suction below, the exhaust vacuum pump automatically,suction air condition,pump impeller when the liquid level rises to a working position,the pump automatically enters normal operation,exhaust exit and stop pumps automatically work.
Ruobei suction surface liquid has been sent to the pump impeller suction position,the exhaust vacuum pump does not work,the pump can be started directly into the normal working condition.