Description: Ratio of the power requirement P of the pump reduced by the mechanical power losses P_j,ab to the power requirement of the pump under certain working conditions; Name: mech eff
Description: determined proportion of the pump power input, p, available after satisfying the mechanical power losses, pj,ab, at given operating conditions; Name: mechanical efficiency
Description: Speed that characterizes a pumps cavitation performance in terms of its speed, optimum rate of flow per impeller eye at best efficiency point and NPSH3 at best efficiency point for the first stage at maximum impeller diameter ; Name: Suction-specific speed