Diaphragm Pumps Ltd

ARO Air Operated Double Diaphragm (AODD) Pumps are becoming the most common pumps for use when Only Air is available or when pumping solid laden liquids or slurries. ARO Diaphragm Pumps have no seals as the diaphragm acts as the barrier between the Liquid side and the drive side of the pump. When the liquid pressure reaches the air pressure, the ARO pump reaches a point of balance and stalls without the need for bypasses or overload protection.ARO Diaphragm Pumps pump can run dry indefinately and have the ability to self prime to 7 metres or more in some cases. They can handle viscosities up to 20000 Centipoise as standard and some ARO models can handle cPs into the 100's of 1000's. ARO Pumps are some of the most reliable AOD's in the marketplace, Self Priming, Dry running, Intrinsically safe, these are just a few of the features of ARO Diaphragm Pumps. Models include pumps for pumping hygienic products, aggressive chemicals aswell as standard industrial duties. High pressure models are also available for filter press applications or for pumping into closed systems. ATEX regulated ARO pumps are offered for Zone 1 environments. ARO Pumps and spares are available from Diaphragm Pumps Ltd, Stoke On Trent, England. As one of the largest stockists of pumps and spares in Europe, we hope we can supply all your ARO Pump needs.

ARO ®

Diaphragm Pumps Ltd is your first stop for Genuine ARO ® Pumps & Spares.

As the largest stockist of AODD Pumps and Spares in the UK, we offer immediate despatch for all your Ingersoll Rand ARO Pump Needs.

Please use the menus on the right for detailed pump information or contact us via our contact page or use the details below

  • Patented, "Unstallable", Stall-Free Air Motor Design
  • Bolted Construction for a Safe, Sure-Fit Seal against Material Leaks.
  • Ice-Free Air Motor Design
  • Sealless Design avoids costly pump tear-down.
  • ISO 9001 - Registered
  • CE - Compliant
  • 5 - Year Warranty
  • Port Sizes (Max.Flows): 1/4"(4.5 GPM), 1/2"(13 GPM), 1"(40 GPM), 1-1/2" (100 GPM), 2" (145 GPM)
  • PUMP MATERIAL CHOICES( Note: Not all pump models contain every material listed. Consult I-R/ARO or Catalog for specific trimmings.)
  • BODY: Conductive Acetal (Patented), Polypropylene, Kynar ® (PVDF)
  • WETTED PARTS:
  • CHECKS: Stainless Steel, Santoprene® , Buna N, Viton® , Teflon ® , EPR, Neoprene, Polyurethane
  • CHECK SEATS: Polypropylene, Kynar, Acetal, Stainless Steel
  • DIAPHRAGMS: Santoprene, Neoprene, Teflon, Viton, Hytrel, EPR, Buna N

Viton® is a registered trademark of DuPont Dow elastomers.

Port Sizes ( Max. Flows): 1" ( 35 GPM), 1-1/2" (100 GPM), 2" (170 GPM),3" (275 GPM)

  • PUMP MATERIAL CHOICES (Note: Not all pump models contain every material listed. Consult I-R/ARO or Catalog for specific trimmings.)
  • BODY: Aluminum, Cast Iron , Stainless Steel
  • WETTED PARTS:
  • CHECKS: Neoprene, Buna N, Viton, Geolast ® , Santoprene, Teflon, EPR, Acetal, Polyurethane, Stainless Steel
  • CHECK SEATS: Stainless Steel, Polypropylene, Kynar (PVDF), 316 and 400 Stainless Steel, Santoprene, Geolast, Hard 440 S.S.
  • DIAPHRAGMS: Neoprene, Buna N, Viton, Teflon, EPR, Hytrel, Santoprene, Geolast

2" PORTS, "FLAP" VALVE PUMP

Capable of passing abrasive slurries and other pipe-sized particles, the ARO Flap Valve Diaphragm Pump is the ideal process pump.

  • Flow: 160 GPM (Max.)
  • PUMP MATERIALS:
  • BODY: Aluminum, Stainless Steel, Cast Iron
  • FLAP CHECKS: Santoprene, Geolast
  • CHECK SEATS: 316 Stainless Steel
  • DIAPHRAGM: Santoprene, Geolast


1" PORTS, 3:1 RATIO, HIGH-PRESSURE PUMP

For paint recirculation or any process where sustained, high transfer pressures are required, the ARO 3:1 pump is the no-stall solution.

  • Flow: 24 GPM (Max.)
  • Operating Pressure: 300 PSI (Max.)
  • PUMP MATERIALS:
  • BODY: Aluminum, Stainless Steel
  • CHECKS: Stainless Steel
  • CHECK SEATS: Stainless Steel
  • DIAPHRAGMS: Teflon

What's New

IR ARO® Introduces New EXP Diaphragm Pump Line

U.L. LISTED, FUEL TRANSFER PUMPS
Designed specifically for handling petroleum based fuels, these pumps meet U.L.- 79 specification code and are compatible with gasoline, diesel fuel, kerosene, aviation fuel,fuel oil, and unleaded fuels. Pumps are available in 1"(29 GPM Max.) and 1-1/2"(75 GPM Max.) port sizes and feature aluminum construction.

ARO ® is the registered trade mark of Ingersoll Rand