Description: Design flow rate in the pump outlet nozzle divided by the outlet cross-section of the pump; Name: mean design speed in the outlet
Description: rated flow at pump outlet connection divided by the inlet area of the pump; Name: mean rated velocity at outlet
Description: amount of the absolute value of the total head above the head, equivalent to the vapour pressure of the liquid at the particular temperature, with reference to the NPSH datum plane; Name: net positive suction head