PumpsDOE-HDBK-1018/1-93CENTRIFUGAL PUMP OPERATIONCentrifugal Pump Operation Summary (Cont.)Pump runout is the maximum flow that can be developed by a centrifugal pumpwithout damaging the pump.The greater the head against which a centrifugal pump operates, the lower the flowrate through the pump. The relationship between pump flow rate and head isillustrated by the characteristic curve for the pump.Centrifugal pumps are protected from dead-heading by providing a recirculationfrom the pump discharge back to the supply source of the pump.Centrifugal pumps are protected from runout by placing an orifice or throttle valveimmediately downstream of the pump discharge and through proper piping systemdesign.Rev. 0ME-03Page 17
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business