Description: rotor critical speed calculated considering the additional support and damping produced by the action of the pumped liquid within internal running clearances at the operating conditions and allowing for stiffness and damping within the bearings; Name: wet crit. Speed
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: a group of construction elements with the same construction features and the same construction, which can be collated for the construction type approval and quality conformity controls as a result of similar manufacturing methods. they are generally allocated to a construction type specification. Note: in certain cases, construction element from different construction type specifications can be viewed as belonging to the same type and hence collated for the construction type approval and quality conformity controls; Name: Construction type of the connection, muff A2