Description: Rotor resonant frequency calculated assuming that the rotor is supported only in the bearings and that the bearings have infinite stiffness; Name: crit speed (dry)
Description: Rotor resonant frequency calculated considering the additional support and damping produced by the action of the pumped fluid within rotor  ; Name: Wet critical speed
Description: For a given operating resource, the greatest temperature, not ever to be exceeded, of materials or measuring substances above which the resource cannot be operated without permanent changes in its characteristics; Name: 	Max. work temperature