HPK-L Dry-installed pump

Dry-installed pump HPK-L

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.
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Main Applications

  • Pump for handling hot water and organic or synthetic heat transfer fluids in piping or tank systems.
  • Heating systems
  • Forced circulation boilers
  • District heating

Technical Data

Max. flow rate
1400 m3/h
Max. head
233 m
Max. allowed working pressure
40 bar
Maximum allowable fluid temperature
400 °C

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  • Low temperature in the mechanical seal chamber; no cooling water required thanks to air-cooled bearing bracket with heat barrier.
  • Increased operating reliability of versions for heat transfer applications by an optional two mechanical seals preventing leakage.
  • Higher efficiencies than the previous HPK-L model by continued development of the flow passage within the hydraulic system.

Technical Data

Connection type
Drive concept
With electric actuator
Max. flow rate
1400 m3/h
Min. flow rate
1 m3/h
Max. head
233 m
Min. head
3.5 m
Mains frequency
50 Hz,
60 Hz
Mains voltage
400 V,
460 V
Casing material
Nominal pressure
PN 40
Max. allowed working pressure
40 bar
Suction behaviour
Maximum allowable fluid temperature
400 °C
Minimum allowable fluid temperature
-40 °C

Sectional Drawings