GP

Range of application

  • water injection
  • refineries
  • pumping of brine
  • oil  and gas industry
  • generation of pressure in industrial areas

Operating data, Characteristic Curves

  • Q= 600 m³/h
  • H= 2500 m
  • P= 250 bar
  • T= +180 °C

Design features and properties

  • injector pump of “back-to-back” arrangement
  • version with NPSH impeller
  • axial thrust compensation by means of “back-to-back” arrangement of impellers
  • bearings: antifriction bearings or slide bearings
  • very stable rotor dynamics also in case of large number of stages
  • central slide bearing ensures very smooth running and low vibration values
  • very small load on axial bearings due to back-to-back arrangement, long service life

Materials

  • grey cast iron
  • ductile cast iron, ADI materials
  • cast steel
  • 12 % chromium steel
  • austenitic steel
  • special alloys

Bearing configurations

  • Standard Version
    Radial bearings: antifriction bearings
    Axial bearings: antifriction bearings
    Ring oil lubrication

  • Variant
    Radial bearings: slide bearings
    Axial bearings: antifriction bearings
    Ring oil lubrication

  • Variant
    Radial bearings: slide bearings
    Axial bearings: slide bearings
    Pressure oil lubrication

Wear-resistant Design

  • Injector pumps of wear-resistant design for especially abrasive liquids, liquids containing solids
  • Even on wear of clearance spaces the remaining axial thrust is changing just slightly, bearing load of axial bearing remains equally low.
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