OH2 - KRHA

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    KRHA01

  • OH2-KRHA_2403292_Tatneft_IMG_1560.JPG

    KRHA02

  • OH2-KRHA_2403765_IMG_2396a.JPG

    KRHA03

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The horizontal, single-stage, radial-split, heavy-duty process pump meets all requirements of API 610 and ISO 5199. The robust design of the pumps, as well as the reliable hydraulic version, enable to fulfillment of all requirements of the application in many fields.

 KRHA
Q (m³/h)5000
H (m)220
P (bar)55
T (° C)+450

Volute casing pumps of type KRHA are applied in processing plants where complicated processing problems of liquid pumping have to be solved. Clean and slightly contaminated, cold and hot, chemically neutral or aggressive liquids can be pumped with these pumps. 

  • Petrochemical Plants, Refineries
  • Chemical Industry/Process Engineering
  • Sugar Industry
  • Power Plants 
  • Desalination Plants for Sea Water
  • Environmental and Offshore Engineering
  • Treatment Plants for Mineral Oil Systems, etc.
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  • Q= 5.000 m3/h
  • H= 220 m
  • P= 55 bar
  • T= +450 °C
KRHA quarter cut
  • Concept: big impeller diameters and speeds up to 1800 r.p.m. for high delivery head and lowest NPSH values
  • axial suction nozzle, radial discharge nozzle
  • centerline-supported
  • casing > NW 80 of double-volute design
  • reduction of axial forces
  • low vibration – long service life
  • back-pull-out version in connection with demountable coupling allows simple maintenance, volute casing and motor remain in initial position
  • seal area acc. to API 610/682, suitable for a variety of seals
  • standard version
  • flanges according to ASME B16.5 for class 300 or 600 lbs
  • exchangeable wear and guide rings enable easy maintenance and cost reduction
  • dynamically ballanced impellers guarantee very smooth running
  • solid shaft design meets all requirements of API-610
  • grey cast iron
  • ductile cast iron, ADI materials
  • cast steel
  • 12 % chromium steel
  • austenitic steel
  • special alloys
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  • tandem bearing with cooled down oil sump
  • on very high pressure or bearing load a tandem bearing with oil pressure lubrication and external oil filtering and oil cooling
  • reinforced casing designs
  • special design of rotor package
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  • temperature up to 450 °C
  • high process safety also on very high temperatures
  • special sealing concept for high temperatures
  • mechanical seal + barrier fluid system according to API-682 for high temperature
  • heat barrier prevents penetration of heat into bearing
  • fan cooling and cooled down oil sump ensure low bearing temperature
  • cooling of seal chamber

OH1 - KRP

process pump foot mounted, type OH1

Q= 2.800 m³/h, H= 250 m, P= 25/35 bar, T= 150 °C

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OH2 - KRH

Heavy duty process pump, type OH2

Q= 1.000 m³/h, H= 320 m, P= 55/90 bar, T= +450 °C

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OH2 - KRHL / KRPO / KGHL

Process pump for low capacity and high pressure, type OH2

Q = 45 m³/h, H = 270 m, P = 50 bar, T = +450 °C

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OH3 - KRI / KRIL

Process pump as inline version, type OH3

Q = 800 m³/h, H = 270 m, P = 55 bar, T = +250°C

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