Description: energy level in the outlet cross-section of the pump, which corresponds to the sum of geodetic level, pressure level and velocity level; Name: total energy level at the outlet cross-section of the pump
Description: head observed at outlet area of the pump, corresponding to the sum of the height, pressure head and velocity head; Name: total head at outlet area of the pump
Description: total inlet pressure required to ensure there is sufficient margin to maintain the minimum instantaneous inlet pressure with adequate margin above the minimum liquid vapour pressure expected; Name: net positive inlet pressure required