ARO Air Operated Diaphragm Pumps

Industry expertise merged with proven piston pump technologies.

For over 85 years, the ARO® Fluid Products business of Ingersoll Rand has developed partnerships with more than 200 original equipment manufacturers and distributors, enabling us to better focus on the unique pumping needs of many industries. It’s a strategic merger of our partners’ application expertise, along with our decades-long legacy of designing and building outstanding piston pumps.

Why ARO Diaphragm Pumps?

Air operated diaphragm pumps are designed for general use. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage. Due to their pneumatic motor, they could be used in potentially explosive areas. Most of the ARO® diaphragm pumps are ATEX certified (CE Ex11 2GD X).

These pumps offer the ability to vary the flow outlet and discharge pressure as slow as 0.26 gallons (1liter) per minute up to 275 gallons (1041 liter) per minute for our larger sizes and adjust fluid pressure up to 125 p.si. (8.6 bar), by using just an air filter / regulator and a needle valve

ARO Diaphragm Pump Features:

  • ARO Diaphragm Pumps provide stall-free, ice-free operation.
  • Patented “Unstallable” unbalanced air valve design avoids stalling issues associated with other pumps.
  • “Quick-Dump” exhaust valves divert cold exhaust air from ice-prone components, preventing freezing.
  • Backed by a five-year warranty, we have the most reliable pump line on the market today.

The ARO range of diaphragm pumps offers many materials of construction.

Metallic Materials:

  • Aluminium
  • Cast Iron
  • Stainless Steel
  • Hastelloy®

Non-Metallic Materials:

  • Polypropylene
  • Acetal
  • PDVF

All ARO pumps are available with convoluted diaphragms offering long product life and reduced maintenance.

ARO Diaphragm Pump Configurator
Chemical Compatibility  Guide

Pro Series Diaphragm Pumps

Pro Series Diaphragm Pumps

ARO Pro Series air operated diaphragm pumps are ideal for general industrial and OEM installation applications. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage.

Expert Series Diaphragm Pumps (EXP)

Expert Series Diaphragm Pumps (EXP)

A favorite among process professionals, ARO EXP diaphragm pumps are a truly versatile solution for numerous applications. Known for its industry-leading efficiency and reliability, flow rates of up to 275 GPM (1041 LPM) and a large range of material and porting configurations, ARO has the right pump for your application. With proven performance in the field and backed by a 5-year warranty, ARO EXP diaphragm pumps deliver consistency and reliability in the most demanding situations.

Compact Diaphragm Pumps

Compact Diaphragm Pumps

Ideal for OEM and General Industrial applications where peak performance, endurance, and reliability are a must, our compact pumps feature big performance in a small package. With flow rates up to 14.8 GPM (56 LPM) and a large range of material and porting configurations, we have the right pump for your application.

Specialty Pumps

Specialty Pumps

Utilizing technology identical to other ARO Pumps, these Specialty models will provide the same high level of performance and satisfaction but in a design tailored for your specific application. Specialty pumps include: Drum Packages, Flap Valve pumps, Powder Transfer pumps, High Pressure pumps, Sanitary Transfer pumps, Centrifugal De-watering pumps, and Fuel Pumps.

ARO Controller and Electronic Interface Pump

ARO Controller and Electronic Interface Pump

Migrate to a smart touch-and-walk-away system that helps optimize your costs and production time. The new ARO Controller creates a fully automated multi-pump system and works seamlessly with ARO Electronic Interface pumps.

ARO Station

ARO Station

The ARO Station is a customized solution that houses an ARO pump and piping in a durable housing in order to reduce leaks and fumes during chemical transfer from one container to another.

FDA Pump

FDA Pump

ARO® FDA compliant pumps are the reliable and efficient solution for high-volume transfer and dispensing applications. The SD line of diaphragm pumps are a great choice in the food and beverage, cosmetic and pharmaceutical industries along with many others.

Diaphragm Pump Parts and Accessories

Diaphragm Pump Parts and Accessories

ARO offers a comprehensive array of diaphragm pump accessories to complement your pump. Accessories like Pump Actuation Valves, Diaphragm Failure Detection Kits, and Cycle Sensors / Counters will keep your pump maintained and running while saving you time and money.