Description: minimum value of inlet pressure of the pump or based on the materials used; Name: Minimum permissible inlet pressure
Description: lowest value of inlet pressure at which the pump or component is capable of functioning on the basis of the materials used; Name: minimum allowable inlet pressure
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable