HPK Dry-installed pump
Dry-installed pump


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.
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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
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Technical Data

  • Max. flow rate4800 m³/h
  • Max. head275 m
  • Max. allowed working pressure40 bar
  • Max. allowed fluid temperature240 °C


  • Hydraulic system, nominal data and dimensions to ISO 2858 / EN 22858
  • Continuous lubrication and oil level monitoring by constant level oiler
  • Back pull-out design allows the casing to remain in the piping while the pump is dismantled.

Characteristic curves

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TitleFormatSizeLast change
HPK (1121.8_EN)pdf4.995/24/2019
HPK; Complementary sizes (1121.8017_EN)pdf4.35/24/2019
TitleFormatSizeLast change
Product Introduction HPK (1121.12_010)pdf0.425/24/2019
TitleFormatSizeLast change
Startup of horiz. Pumps with Graphite (1081.801_EN)pdf0.155/24/2019
Suppl. OI HPK/HPKY, single-acting mech.seal, KSB Type B (1121.8143_010)pdf1.629/18/2020
Suppl. OI HPKSx/Ex for single-acting mech.seal, Burgmann H75N (1121.8138_010)pdf0.049/18/2020
CPKN; HPK; HPK-L; MAC; MAC-Bloc; MegaCPK; RPK; with Inducer (1081.802_EN)pdf19/18/2020
SOI Installation instructions, HPK/HPKY, single-acting mech.seal, Burgmann H 75N (1121.8130_010)pdf0.39/18/2020
Suppl. OI HPK/HPKY, single-acting mech.seal, KSB Type H (1121.8145_010)pdf0.059/18/2020
Suppl. OI HPK/HPKY single-acting mech.seal, Crane 57BRF (1121.8148_010)pdf0.059/18/2020
PT100 (1070.806_EN)pdf0.535/24/2019
Suppl. OI HPKSx/Ex, single-acting mech.seal, KSB Typ B (1121.8140_010)pdf0.19/18/2020
Shock pulse measurement (1070.807_EN)pdf1.045/24/2019
Suppl. OI, HPKSx/Ex; mech.seal, Typ B (1121.8136_010)pdf0.055/24/2019
Conical Strainer ZN 1364; only vertical. (1081.818_EN)pdf0.15/24/2019
Oil Level Gauge (1070.816_EN)pdf0.715/24/2019
Zusatzbetriebsanleitung HPK (1121.8123_EN)pdf0.115/24/2019
Conical Strainer ZN 1449; hor. and vert. (1081.819_EN)pdf0.065/24/2019
Suppl. OI HPK, Design features improving the service life (1121.8126_010)pdf0.569/18/2020
Suppl. OI, single-acting mech. seals, Crane 57B-D (1121.8133_010)pdf0.079/18/2020
Suppl. OI HPK/HPKY, mech.seal, Burgmann H75F2 (1121.8134_010)pdf0.059/18/2020
Suppl. OI HPK Design features improving the service life (1121.8125_010)pdf0.59/18/2020
Suppl. OI HPK/HPKY mech.seal, Burgmann H75G115 (1121.8132_010)pdf0.559/18/2020
Suppl. OI HPK/HPKY for quench pot 8LSUK (1121.8129_010)pdf0.195/24/2019
Suppl. OI HPK for single-acting mech.seal, Chetra 208 (1121.8135_010)pdf0.049/18/2020
TitleFormatSizeLast change
Type series booklet HPK (1121.51_010)pdf0.555/24/2019

Technical Data

  • FunctionPump
  • Connection typeFlange
  • Drive conceptWith electric actuator
  • Max. flow rate4800 m³/h
  • Min. flow rate1 m³/h
  • Max. head275 m
  • Min. head2 m
  • Mains frequency50 Hz, 60 Hz
  • Mains voltage400 V, 460 V
  • Casing material1415, 1877, 2349
  • Nominal pressurePN 40
  • Max. allowed working pressure40 bar
  • Suction behaviourNon-self-priming
  • Max. allowed fluid temperature240 °C
  • Min. allowed fluid temperature5 °C

Sectional Drawings

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