Description: Head observed at inlet area of the installation, corresponding to the sum of the height, pressure head and velocity head  ; Name: Total head at inlet area of the installation
Description: Determined total head at the inlet area of the installation, which corresponds to the sum of geodetic head, pressure head and velocity head; Name: Total head at inlet area of the installation
Description: The output provided by the machine directly to the coupling. Losses in transmission elements outside of the machine, such as gear transmissions and belt drives, are not included; Name: Shaft performance for nominal speed, drive