Introduction of Centrifugal Pump
Centrifugal pumps are those where an impeller rotating at high speed throws the liquid by centrifugal force from the center to the periphery of the impeller where the liquid is discharged through the delivery outlet.Centrifugal pumps, while being suitable for most general marine duties, are not self-priming and require some means of removing air from the suction pipeline and filling it with liquid.When starting a centrifugal pump the suction valve is opened and the discharge valve left shut: then the motor is started and the priming unit will prime the suction line. Once the pump is primed the delivery valve can be slowly opened and opening or closing the delivery valve can regulate the quantity of liquid. When stopping the pump the delivery valve is closed.
