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: standards-based seal coding system that uses letter/number combinations to describe the material composition of the mechanical seal pair; Name: material pairing of the mechanical seal