Description: minimum permissible head of the pump; Name: smallest head permitted
Description: Minimum permissible head at which the pump can be operated without suffering damage; Name: Minimum allowable head
Description: maximum boundary value of temperature range in a specified temperature, in which an operating unit can be used, without serious changes of assigned features, depending on the exposure time. Temporal restrictions like short-time or durability have to be stated; Name: max. temperature range