Hi-Q (High Pressure Diaphragm Pump)

The Harben Hi-Q high pressure diaphragm pump is capable of pressures up to 280 bar (4,000 psi) and flows to 100 l/min (22 gpm). They are available in a 4 cylinder format requiring up to 70 hp depending upon the pressure and flow configuration chosen.

Drive power can be diesel or electric and we have a range of gearbox ratios to suit all requirements.

The Hi-Q has a unique mode of operation that keeps all the moving parts inside the pump separated from the pumped fluid. The video below clearly shows the simplicity of operation which delivers some significant advantages over more traditional direct acting pumps.

  • No packings or seals to wear out
  • Pump can run dry without damage
  • Suitable for a large range of low viscosity fluids
  • Pumps low lubricity fluids with ease
  • Has multi-cylinders therefore minimal pulsation
  • High power to weight ratio
  • Simple to pressure compensate
  • Frost tolerant

The Harben high pressure diaphragm pump is used in numerous pumping applications because they are efficient, reliable and easy to maintain.

  • Water jetting
  • Drain cleaning
  • Hydrostatic testing
  • Umbilical flushing & HPU’s
  • Hot steel descaling
  • Water hydraulic systems
  • Hydrostatic testing
  • Umbilical flushing

Looking for different flow and pressure combination? See our P type or Century ranges of high pressure diaphragm pumps

Want more information on Hi-Q (High Pressure Diaphragm Pump)?

  • No packings or seals to wear out
  • Pump can run dry without damage
  • Suitable for a large range of low viscosity fluids
  • Pumps low lubricity fluids with ease
  • Has multi-cylinders therefore minimal pulsation
  • Compact and lightweight
  • Simple to pressure compensate
  • Frost tolerant
  • High pressure cutting of board, plastic and materials
  • Water hydraulic systems
  • Abrasive blasting and descaling
  • Cable duct desilting
  • Drain and sewer cleaning
  • Tube descaling
  • Desalination by reverse osmosis
  • Pumping demineralized water
  • Floor and surface cleaning
  • Underwater cleaning