Description: Nominal speed (nN) is a suitable, rounded speed value for classifying the speed range; Name: nominal speed
Description: Number of revolutions of the pump in a given time required to meet the rated conditions ; Name: Rated speed
Description: The norm in fixed relation to the feature being described. This defines the parameters that influence the contents of the correlated feature. Type and number of the norm with issue year and issue month must be given, e.g. DIN ISO 4711:YYYY-MM.; Name: Reference norm material, pumping medium