Explain with neat sketch working of centrifugal pump.
Working of centrifugal pump is in three stages
i. Priming
ii. Starting
iii stoping
i. Priming- The operation of filling the casing, impeller and suction pipe upto delivery valve is called priming.
ii.Starting- Before starting first of all check that priming is done and return valve is not in closed condition.
iii.Stoping - To stop the pump, delivery valve should be closed partly. Motor is switched off and then value is closed fully.