
Pump Spare Parts
Aro® Compatible Spare Parts
ARO® first introduced its air-operated double diaphragm (AODD) pump to the market in the 1980s in Bryan, Ohio, USA. Today, ARO® is part of Ingersoll Rand Corp. and is one of the leading AODD pump brands worldwide.
- OEM
Compatible - Fast
Availability - Easy
Installation - Quality
Assured
Compatible Spare Parts
for Leading Pump Brands
ARO® air-operated diaphragm pumps can handle a wide range of viscous fluids and operate continuously without freezing. Their unbalanced air valve design prevents the stalling issues common with other pumps. Rapid exhaust valves redirect cold exhaust air away from freeze-prone components, preventing icing. Depending on the fluid type, multiple pump configurations are available — including single-body, double-body, and heavy-duty double-body piston pump packages.
ARO® diaphragm pumps are a cost-effective and reliable choice for industrial and chemical applications. Their bolted, leak-proof design eliminates cross-contamination and enhances operator safety. The modular construction, reduced part count, and easy-to-use repair kits minimise downtime when maintenance is required.
Available ARO® Compatible Spare Parts
- ARO®
Compatible - Wide Material
Range - Chemical
Compatibility - Temperature &
Sealing Rated

Technical Specifications
| Part types | Diaphragms, balls, seats, air valve kits, O-ring/seal kits, manifolds |
|---|---|
| Compatible pump sizes | 1/4" to 3" air-operated double-diaphragm pumps (indicative) |
| Diaphragm materials | PTFE, Santoprene, Hytrel, nitrile (Buna-N), EPDM, Viton (indicative) |
| Ball / seat materials | PTFE, stainless steel, Santoprene, nitrile (indicative) |
| Service kits | Fluid-section repair kits and air-section repair kits (indicative) |
| Max operating pressure | 8.6 bar (125 psi) air inlet, as per OEM pump (indicative) |
| Temperature range | -10 °C to +100 °C depending on elastomer (indicative) |
| Interchange | Dimensionally compatible with Aro® part numbering; not an OEM product |
Materials
| Diaphragms | PTFE, Santoprene, Neoprene, EPDM, Buna-N, Viton, Hytrel |
|---|---|
| Balls & Seats | PTFE, Santoprene, Stainless Steel 316, Neoprene |
| Air Valve Components | Aluminium, Acetal, Stainless Steel |
| O-Rings & Gaskets | NBR, FKM, PTFE |
| Rotors / Stators (PC pumps) | Tool Steel / NBR, EPDM, FKM |
Applications
- AODD pump overhauls
- Preventive maintenance programmes
- Progressive cavity pump rebuilds
- Chemical, food and marine installations
Downloads
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