ARO® Air Operated Diaphragm Pumps

Everything You Need. Nothing You Don't

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).

EXP Series Diaphragm Pumps

Pro Series Diaphragm Pumps


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.

Single Piece Diaphragm for FDA Pumps

Minimize the number of collection points for fluid being pumped to speed up disassembly, cleaning and reassembly of your ARO® FDA Pump.

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New Powder Pump Videos from ARO

Learn about the features and benefits of the ARO® Powder Pump. Follow a guided start-up process and troubleshoot common start-up issues.

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Long Life PTFE Fluid Repair Kits

Over a six month side by side accelerated durability test, the Long-Life PTFE diaphragm demonstrated double the life over our current convectional PTFE baseline.

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

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

EXP is Automation Ready 

All EXP Series pumps are enhanced with electronic interface capability, providing accurate, electronically controlled dosing. Combine our pump with the ARO Controller or a PLC or PC based system and switch from inaccurate, inefficient manual processes to intelligent fluid management. Learn More

Metallic Materials:

Aluminium
Cast Iron
Stainless Steel
Hastelloy®

Non-Metallic Materials:

Polypropylene
Acetal
PDVF 


Expert Series Diaphragm Pumps (EXP)

Expert Series Diaphragm Pumps (EXP)

ARO® EXP Series diaphragm pumps include all the benefits of standard air-operating pumps, but with significant additional features and benefits.

All EXP Series pumps are enhanced with electronic interface capability, providing accurate, electronically controlled dosing.

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.

ARO® Electronic Interface Pumps and Controller

ARO® Electronic Interface Pumps and Controller

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 FDA Stainless Steel Diaphragm Pump

ARO FDA Stainless Steel Diaphragm Pump

ARO® FDA compliant Stainless Steel diaphragm pumps deliver safety and quality, as well as industry leading total cost of ownership. By combining the rugged reliability of our EXP pump design with the capacity to handle high volume transfer and dispensing applications, ARO pumps enable you to produce more for your customers.

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 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.

Diaphragm Pump Parts and Accessories

Diaphragm Pump Parts and Accessories

ARO offers a comprehensive array of diaphragm pump parts for standard diaphragm pump repair and maintenance. Diaphragm Pump Accessories will keep your pump maintained and running while saving you time and money.

ARO FDA Stainless Steel Diaphragm Pump

ARO FDA Stainless Steel Diaphragm Pump

ARO® FDA compliant Stainless Steel diaphragm pumps deliver safety and quality, as well as industry leading total cost of ownership. By combining the rugged reliability of our EXP pump design with the capacity to handle high volume transfer and dispensing applications, ARO pumps enable you to produce more for your customers.