Main applications wkt

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

Technical data

Q max 360.0 m³/h
H max 310.0 m

Design wkt

Vertical, multistage, barrel pull-out, ring-section pump for underfloor installation on a base frame in the pump sump, radial impellers, single-entry suction impellers, flanges to DIN or ANSI standards.

Application pump wkt

Pumping condensate in power stations and energy systems.

Drive pump wkt

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

Desing Details pump wkt

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 wkt

Q (50Hz)7.0 – 360.0 (m³/h)
H (50Hz)6.0 – 310.0 (m)
Type of bearingRolling element 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
No. of impeller entriesSingle entry
Other impeller typesClosed / Radial
Impeller material (EN standard)CHROMSTAHLGUSS, GRAUGUSS
Type of installationLong-coupled
Type of couplingDirect
Type of lubricationOil / Product lubrication
Discharge casing material (EN standard)GRAUGUSS, STAHLGUSS
Max. permissible fluid temperature200.0 (°C)
Nozzle positionSide-side
Maximum operating pressurePN 40
Pump set locationDry installed
Stage casing material (EN standard)STAHLGUSS, GRAUGUSS
Suction casing material (EN standard)GRAUGUSS, STAHLGUSS
Suction characteristicsNon-priming
Type of impellerRadial, Closed
Type of connectionFlange
Type of stage casingStage casing with diffuser
eClass assignment36410000, 36410101, 36410100
Installation positionVertical
Shaft seal typeGland packing, Mechanical seal
Main applicationsEnergy
Casing materialCarbon steel
Maximum discharge-side pressure40.0 (bar)
Maximum suction pressure20.0 (bar)
Maximum drive rating400.0 (kW)
Type of installationStationary
Maximum speed of rotation3000.0 (1/min)