Description: maximum head that a pump can provide continuously; Name: Greatest head permitted
Description: Maximum permissible head at which the pump can be continuously operated without suffering damage; Name: Maximum allowable head
Description: permanent operation, short-term operation or periodic operation characterized by one of more loads and which remains unchanged during a certain period, or, in the case of non-periodic operation, where the load and speed generally change within the permissible operating range; Name: Operation type time sequence of the drive