Description: Runner resonant frequency calculated taking into account the additional support and damping caused by the effect of the fluid in the impeller; Name: crit speed (wet)
Description: Rotor resonant frequency calculated assuming that the rotor is supported only at its bearings and that the bearings are of infinite stiffness ; Name: Dry critical speed
Description: greatest difference between the total energy height at the outlet side of the pump aggregate and the total energy height of the intake side of the pump aggregate at operating point; Name: maximum feed height