Description: Design flow rate in the inlet cross-section of the system divided by the inlet cross-section of the system; Name: Average design speed in the plant inlet
Description: Rated flow at the inlet area of the installation divided by the inlet area of the installation; Name: Mean rated velocity at inlet area of the installation
Description: difference between the total energy height on the outlet side of the pump aggregate and the total energy height of the intake side of the pump aggregate ruling at operating point; Name: nominal feed height