Main applications wkta

  • Energy
  • Nuclear Power Stations
  • Turbine Island

Technical data

  • Q max 1,800.0 m³/h
  • H max 340.0 m

Design wkta

Vertical, single- or multistage, barrel pull-out, ring-section pump for underfloor installation on a base frame in pump sump, radial and mixed flow impellers, single- and double-entry suction impellers, flanges to DIN or ANSI, also available in re-entry design.

Application pump wkta

Pumping condensate in power stations and industrial systems.

Drive pump wkta

Direct by vertical electric motor.
The motor is arranged on a motor stool above the pump

Desing Details pump wkta

Bearings, Lubrication

Medium–lubricated radial plain bearings inside the pump.
Combined radial/axial thrust bearing assembly with oil–bath lubrication arranged above the shaft seal.

Axial Thrust Balancing

Hydraulic balancing by means of two casing wear rings and balancing holes in the impeller.

Shaft Seal

Gland packing or double–acting mechanical seal
in tandem arrangement.
In the shaft seal area, the shaft is provided with a replaceable shaft sleeve.

Nozzle Position

Horizontal, above the installation floor.


Connection dimensions to DIN or ASME.


Vertical, can–type ring–section pump.
Radial and mixed flow impellers, multistage.
Single– and double–entry suction impellers

Overview of technical data wkta

Q (50Hz)310.0 – 1,800.0 (m³/h)
H (50Hz)50.0 – 340.0 (m)
Type of bearingRolling element and plain bearings
Casing partitionRadially split
Diffuser material (EN standard)CHROMSTAHLGUSS, GRAUGUSS
Drive frequency50 Hz /60 Hz
Type of driveElectric motor
Drive voltageLow voltage, high voltage
Type of first impellerSingle entry / Double entry
No. of impeller entriesSingle / Double entry
Other impeller typesRadial / Mixed flow
Impeller material (EN standard)GRAUGUSS, CHROMSTAHLGUSS
Type of installationLong-coupled
Type of couplingDirect
Type of lubricationOil / Product lubrication
Discharge casing material (EN standard)STAHLGUSS
Max. permissible fluid temperature100.0 (°C)
Guaranteed to be silicon-freeYes
Nozzle positionSide-side
Maximum operating pressurePN 40
Pump set locationDry installed
Stage casing material (EN standard)STAHLGUSS
Suction characteristicsNon-priming
Type of impellerMixed flow impeller, Radial, Closed
Type of connectionFlange
Type of discharge casingAnnular casing
Type of stage casingStage casing with / without diffuser
eClass assignment36410000, 36410100, 36410106, 36410101
Installation positionVertical
Shaft seal typeGland packing, Mechanical seal
Main applicationsWater, Energy
Casing materialCarbon steel
Maximum discharge-side pressure40.0 (bar)
Maximum suction pressure3.0 (bar)
Maximum drive rating1800.0 (kW)
Type of installationStationary
Maximum speed of rotation1800.0 (1/min)