High-pressure pumps

For applications requiring a liquid pressure of more than 6.9 bar

High-pressure pumps from ARO® are suited to applications in which the 6.9 bar standard liquid pressure of pumps can be greatly exceeded. For the high-pressure pumps available from ARO®, a distinction should be made between those with a ratio of 2:1 and up to 13.8 bar and those with a ratio of 3:1 and a liquid pressure of up to 20.4 bar.

Examples of areas of application for High-pressure pumps from ARO®:

  • High-viscosity liquids
  • Liquids containing a high proportion of solids
  • Feeding filter presses
  • Large delivery head / high backpressure

High-pressure pump, ratio 2:1

Air-operated diaphragm pumps

Technical data:

  • Delivery pressure: 13.8 bar
  • Operating pressure: 6.9 bar
  • Pump capacity: up to 605 l/min.
  • Nominal widths: 1 1/2", 2" and 3"
  • Housing materials: Stainless steel
  • Diaphragm materials: PTFE, Santoprene or Hytrel
  • Ball and valve seat materials: Stainless steel or hardened stainless steel
  • Max. particle size: up to 9.5 mm

Product catalogue EXP series - page 45

Advantages:

  • High liquid pressure of up to 13.8 bar compared with standard pumps offering up to 6.9 bar
  • Modular main valve for simple repairs
  • Folded diaphragms ensure long service life
  • The special Simul shaft and Quick-Dump valve technology help prevent the ARO® high-pressure pump from stopping and icing over

High-pressure pump, ratio 3:1

Air-operated diaphragm pumps

Technical data:

  • Delivery pressure: 20.6 bar
  • Operating pressure: 6.9 bar
  • Pump capacity: 98.4 l/min.
  • Nominal width: 1"
  • Housing materials: Stainless steel
  • Diaphragm materials: PTFE, Santoprene or Hytrel
  • Ball and valve seat materials: Stainless steel or hardened stainless steel
  • Particle size: 3.2 mm
  • Weight: 43 kg

Product catalogue PRO series - page 40

Advantages:

  • High liquid pressure of up to 20.6 bar compared with standard pumps offering up to 6.9 bar
  • High liquid rates of up to 90.7 l/min
  • Saves space thanks to compact size and small footprint
  • Very good material compatibility
  • Quick and easy maintenance