Description: Power consumption due to friction in bearings and shaft seals at certain working conditions of the pump; Name: mech power losses of pump
Description: power absorbed by friction in bearings and shaft seal at given operating conditions of the pump; Name: pump mechanical power losses
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