Description: indicates whether a component can be controlled or not ; Name: controllable 
Description: Provides information as to whether it is possible to continuously adapt the control variable to the reference variable of the control unit of the object; Name: Controllable
Description: amount of the absolute value of the total head above the head, equivalent to the vapour pressure of the liquid at the particular temperature, with reference to the NPSH datum plane; Name: net positive suction head