Description: Total head developed by the pump at a rate of flow corresponding to the best efficiency; Name: Optimal head
Description: Total head developed by the pump at a rate of flow corresponding to the best efficiency; Name: Optimum head
Description: group of construction elements with the same construction features and the same construction for the transportation of media which are combined due to similar production techniques for the construction admittance examination and quality conformity controls; Name: Construction type conveying element