Main applications wktb

  • Cooling water and condensate
  • Energy
  • Nuclear Power Stations
  • Power Stations < 100 MW
  • Power Stations > 100 MW
  • Turbine Island

Technical data

  • Q max 1,500.0 m³/h
  • H max 370.0 m

Design wktb

Vertical can-type ring-section pump on base frame, multistage, first-stage impeller designed as a double-entry suction impeller, radial impellers. Flanges to DIN or ANSI.

Application pump wktb

Pumping condensate in power stations and industrial plants.

Drive pump wktb

▪ Electric motor, type of construction V1
▪ Vertical installation

Desing Details pump wktb


▪ Vertical ring-section pump
▪ Can-type pump design
▪ Multistage
▪ Radial hydraulic systems
▪ Single-entry impellers (subsequent stage(s))
▪ Double-entry impellers (suction stage)

Balancing device

▪ Axial thrust balancing by balance drum
WKTB 7 to 9:
▪ Axial thrust balancing by hydraulically balanced


of the subsequent stages

Shaft seal

▪ Gland packing
▪ Single mechanical seal, or double mechanical seal in tandem arrangement (both in cartridge design)
▪ Barrier fluid line


Drive coupling:
▪ Flexible coupling
▪ Flexible disc coupling
▪ Slip clutch
▪ Gear coupling with grease fill
▪ Flexible spacer-type coupling
Spacer-type coupling:
▪ Additional coupling with removable spacer


Radial bearings:
▪ Product-lubricated plain bearing
Combined thrust and radial bearing:
▪ Rolling element bearing or pivoted segmental thrust


▪ Oil bath lubrication
▪ Air-cooled (WKTB 6) / water-cooled (WKTB 7 – 9)

Nozzle position

▪ Horizontal above the installation floor
▪ 180° opposite to each other
▪ Optionally suction nozzle arranged below floor

Overview of technical data wktb

Q (50Hz)360.0 – 1,500.0 (m³/h)
H (50Hz)90.0 – 370.0 (m)
Type of bearingRolling element and plain bearings
Drive frequency50 Hz /60 Hz
Type of driveElectric motor
Drive voltageLow voltage, high voltage
Type of installationLong-coupled
Type of couplingDirect
Type of lubricationOil / Product lubrication
Max. permissible fluid temperature100.0 (°C)
Guaranteed to be silicon-freeYes
Pump set locationDry installed
Installation positionVertical
Shaft seal typeGland packing, Mechanical seal
Main applicationsWater, Energy
Maximum discharge-side pressure40.0 (bar)
Maximum drive rating1500.0 (kW)
Type of installationStationary
Maximum speed of rotation1800.0 (1/min)