CENTRIFUGAL PUMPModule 3.2 Vertical Pump Construction Main Uses are: Air separationLiquefaction plants.Various applications:Internal compressionCrude argon recyclingRe-injectionBack-up 8 stagesVerticalVP 8/145/4L-3,0 C/0RemindersImpeller diameterImpeller tipwidthLabyrinthSpeed*100Material Principles Vertical pumps divided in Three parts:Cold EndWarm box or Intermediate pieceMotor Side Single and Multi stage pumps Cold box installation with thermal barrier All seal types availableCold end with direct coupled motor.Synchronous speed (50/60Hz) or variable speed VP constructionDrive shaft with coupling Shaft seals : LabyrinthMechanicalGas sealDual Gas sealTotal mass supported by mounting flange Construction: Warm box (Intermediate piece on VP)grease retainerchamberleak detectorcouplingheating coilOutlet of the labyrinth Construction: Warm box (cont’d) Construction: Warm box (cont’d)Heater on motor side Construction: Cold endinducerdiffusorimpelleroutletventinlet Construction: Cold end (cont’d) Construction: Cold end (cont’d) 。