Description: Ratio of the power requirement of the pump reduced by the mechanical power losses  to the power requirement of the pump under certain working conditions.; Name: mech eff
Description: proportion of the pump power input, p, available after satisfying the mechanical power losses, pj,ab, at given operating conditions; Name: mechanical efficiency
Description: Classification of electrical and not electrical operating supplies according to the explosion capable atmosphere in which they are provided for use; Name: Explosion protection-device group of the complete device