ARO
ARO PD03P-APS-PAA — 3/8" Polypropylene Diaphragm Pump, Santoprene Diaphragm
ARO PD03P-APS-PAA — 3/8" Polypropylene Diaphragm Pump, Santoprene Diaphragm
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The ARO PD03P-APS-PAA is a 3/8" air-operated double-diaphragm (AODD) pump from ARO's compact 3/8" non-metallic series — self-priming, run-dry capable, and rated to about 10.6 GPM on compressed air up to 100 psi.
This build runs an all-polypropylene wetted path — fluid caps, manifold and seats — with Santoprene diaphragms and Santoprene check balls. Santoprene is a tough, value-oriented elastomer with good general chemical compatibility, well suited to water-based and mildly aggressive fluids. Bolted construction keeps the fluid path leak-tight, and ARO's patented unbalanced air valve is designed to resist stalling and ice-up.
It suits dosing, metering, chemical feed and low-volume transfer where space and air supply are limited. Not sure this build suits your fluid? Send us your application details and we'll point you to the right part number.
KAD is a Texas-based seller — order online, ship from the US with a short lead time, and reach US-based support if you have a sizing or compatibility question before you buy.
Specifications
| Brand | ARO (Ingersoll Rand) |
| Model / MPN | PD03P-APS-PAA |
| Pump type | Air-operated double diaphragm (AODD) |
| Port / inlet size | 3/8 in |
| Max flow | 10.6 GPM (40.1 LPM) |
| Max fluid pressure | 100 psi (6.9 bar) |
| Max air inlet pressure | 100 psi (6.9 bar) |
| Solids handling | 1/16 in (1.6 mm) |
| Diaphragm material | Santoprene |
| Ball (check valve) material | Santoprene |
| Seat material | Polypropylene |
| Fluid caps & manifold | Polypropylene |
| Max fluid temperature | Up to 175°F (79°C) — limited by the polypropylene wetted path |
| Sound level | ~72.7 dB(A) |
| Weight | ~3.4 lb (1.6 kg) |
| Displacement | 0.022 gal (0.083 L) per cycle |
Datasheet: ARO 3/8" Non-Metallic Diaphragm Pump — Sales & Engineering Data (PDF)
Browse all air-operated diaphragm pumps, or all pumps, at KAD.
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