Description: an Anglo-American unit in mechanics for the rotational speed, for example of a rotary axis; Name: RPM
Description: Number of revolutions of the pump in a given time required to meet the rated conditions ; Name: Rated speed
Description: A suitable, minimum (usually rounded) value of a frequency which is used for the description, designation or identification of a part, device, operating resource, facility or set of equipment; Name: Min. nominal frequency