Main applications

  • Auxiliary Systems
  • Boiler feed systems
  • Cooling water and condensate
  • District heating
  • Energy
  • Industry engineering
  • Nuclear Power Stations
  • Power Stations < 100 MW
  • Power Stations > 100 MW
  • Special processes
  • Steam and hot water, district heating
  • Water treatment

Technical data

Q max 1,400.0 m³/h
H max 233.0 m


Horizontal radially split volute casing pump in back pull-out design to ISO 2858 / ISO 5199, single-stage, single-entry, with radial impeller. Equipped with heat barrier, seal chamber air-cooled by integrated fan impeller, no external cooling. 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-L

Overview of technical data

Q (50Hz) 1.0 – 1,400.0 (m³/h)
H (50Hz) 3.5 – 233.0 (m)
Type of bearing Rolling element and plain 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) 1.4408, EN-GJL-250
Type of installation Long-coupled
Type of coupling Direct
Type of lubrication Grease / Product lubrication
Max. permissible fluid temperature 400.0 (°C)
Nozzle position End suction
Maximum operating pressure PN 40
Pull-out design Yes
Pump set location Dry installed
Shaft material (EN standard) 1.4021+QT800
Suction characteristics Non-priming
Type of casing Volute casing
Type of impeller Closed, Radial
Type of connection Flange
UNSPSC classification 4015150300
Casing material (EN standard) 1.7706, GP240G+N
eClass assignment 36410101, 36410000, 36410100
Installation position Horizontal
Main applications Industry and process engineering, Energy
Casing material Cast steel
Maximum discharge-side pressure 40.0 (bar)
Maximum drive rating 500.0 (kW)
Type of installation Stationary
Maximum speed of rotation 3600.0 (1/min)