Description: relationship between the efficiency of the pump and the rate of flow at given operating/rated conditions of speed and liquid; Name: efficiency curve of the pump
Description: relationship between the total head of the pump and the rate of flow at given operating conditions /rated conditions of speed and liquid; Name: Pump efficiency curve
Description: Construction measures for electrical operating media for preventing ignition of the surrounding explosion-capable atmosphere; Name: Explosion protection Type of 'e' protection of the electric motor