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: The norm in fixed relation to the feature being described. This defines the parameters that influence the contents of the correlated feature. Type and number of the norm with issue year and issue month must be given, e.g. DIN ISO 4711:YYYY-MM.; Name: Reference norm of the static seal, housing