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Voith IPH Hydraulic Internal Gear Pumps

Voith internal gear pump logo

Voith IPH High-pressure Internal Gear Pump

The IPH design incorporates plain bearings and sealing gap compensation both radially and axially to produce a high-pressure gear pump that is quiet and efficient with a compact footprint and light weight. The IPH gear pump is capable of operating at a variety of speeds and using a wide viscosity range of hydraulic fluids and is suitable use in variable speed drives/variable volume flows.

Photo of Voith IPH high-pressure internal gear pump

Models:

  • IPH 4 – 20
  • IPH 4 – 25
  • IPH 4 – 32
  • IPH 5 – 40
  • IPH 5 – 50
  • IPH 5 – 64
  • IPH 6 – 80
  • IPH 6 – 100
  • IPH 6 – 125

Schematic of Voith IPH high-pressure hydraulic internal gear pump for variable speed drive and variable volume flows

  • 1) Pinion Shaft
  • 2) Internal Gear
  • 3) Filler Pin
  • 4) Filler Piece
  • 5) Axial Disc
  • 6) Control Piston
  • 7) Radial Pressure Field
  • 8) Axial Pressure Field
  • 9) Housing
  • 10) End Cover
  • Yellow = Suction Chamber
  • Tan = Pressure Chamber

IPH Part Numbers

  • IPH4-20-101
  • IPH4-20-170
  • IPH4-20-110
  • IPH4-20-111
  • IPH4-20-601
  • IPH4-20-401
  • IPH4-20-100
  • IPH4-20-901
  • IPH4-20-601
  • IPH4-25-101
  • IPH4-25-170
  • IPH4-25-110
  • IPH4-25-111
  • IPH4-25-601
  • IPH4-25-401
  • IPH4-25-100
  • IPH4-25-901
  • IPH4-25-601
  • IPH4-32-101
  • IPH4-32-170
  • IPH4-32-110
  • IPH4-32-111
  • IPH4-32-601
  • IPH4-32-401
  • IPH4-32-100
  • IPH4-32-901
  • IPH4-32-601