Main applications

  • Auxiliary Systems
  • Boiler feed systems
  • Building services
  • Cooling water and condensate
  • District heating
  • Energy
  • Heating / ventilation / air-condition
  • Industry engineering
  • Nuclear Power Stations
  • Power Stations < 100 MW
  • Power Stations > 100 MW
  • Special processes
  • Steam and hot water, district heating

Technical data

Q max 4,800.0 m³/h
H max 275.0 m


Horizontal radially split volute casing pump in back pull-out design, with radial impeller, single-entry, single-stage, to ISO 2858 / ISO 5199. Optional TRD type testing by TÜV. ATEX-compliant version available.


Pumping hot water and thermal oil in piping systems or tank systems, particularly in medium-sized and large hot-water heating systems, forced circulation boilers, district heating systems

Further technical information about HPK

Overview of technical data

Q (50Hz) 1.0 – 4,800.0 (m³/h)
H (50Hz) 2.0 – 275.0 (m)
Type of bearing Rolling element bearings
Casing partition Radially split
Drive frequency 50 Hz /60 Hz
Type of drive Electric motor
Drive voltage Low voltage
No. of impeller entries Single entry
Impeller material (EN standard) JS 1030, JL 1040, 1.4408
Type of installation Long-coupled
Type of coupling Direct
Type of lubrication Oil lubrication
Max. permissible fluid temperature 240.0 (°C)
Nozzle position End suction
Maximum operating pressure PN 40
Pull-out design Yes
Pump set location Dry installed
Shaft material (EN standard) C45+N
Suction characteristics Non-priming
Type of casing Volute casing
Type of impeller Radial, Closed
Type of connection Flange
Casing material (EN standard) JS 1025, 1.7706, GP240GH+N
eClass assignment 36410000, 36410100, 36410101
Installation position Horizontal
Shaft seal type Mechanical seal, Gland packing
Main applications Industry and process engineering, Energy, Building services
Casing material Cast steel, Nodular cast iron
Maximum discharge-side pressure 40.0 (bar)
Maximum drive rating 3200.0 (kW)
Type of installation Stationary
Maximum speed of rotation 3500.0 (1/min)