Description: smallest total energy head at the outlet side of the pump unit at operation; Name: min feed height
Description: smallest total energy height at the outlet side of the pump aggregate to the total energy height of the admission side of the pump aggregate at operating point; Name: minimum feed height
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable