Add an exhaust valve before the centrifugal pump

Prevent cavitation

Before starting a centrifugal pump, it is necessary to fill the pump; without an exhaust valve, liquid cannot enter the pump chamber

It would be best to combine the second and third floors, haha.

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This post was last edited by sunnykey on 2011-3-16 at 14:42. There are many different types of centrifugal pumps available; some of them do not require any liquid to be filled in them. Since cavitation does not occur under normal conditions, some centrifugal pumps need exhaust valves, while others simply do not require any exhaust valves at all.