1) manometric delivery head
2) total head
3) rated net head
the geodetic delivery head plus the additional head that is equivalent to the energy required to overcome friction (friction head) and the energy represented by the velocity of discharge (velocity head) in a pumped storage system
GRM: n. (1,2,3)
References:
SEE geodetic delivery head
SEE static head
SEE pressure head

ENERGY TERM COURTESY OF ENERGY.EU