ARO 637429-AA Fluid Section Service Kit, Santoprene
Santoprene diaphragm and ball fluid section kit for ARO PD03P, PE03P and PE05P pumps
Santoprene fluid section service kit for ARO PD03P, PE03P and PE05P pumps, including the 3/8 in. PD03P-APS-PAA. Listed for 21 pump models.
ARO 637429-AA covers the fluid section of pumps in the PD03P, PE03P and PE05P groups. One listed model, the PD03P-APS-PAA, is a 3/8 in. non-metallic AODD pump. Both the diaphragm and the balls in this kit are Santoprene.
Santoprene is a thermoplastic elastomer. The AA suffix on this kit lines up with the PAA block in each pump code below, so pick a different suffix if your pump uses another elastomer. Inspect the old parts as you remove them, since heavy swelling can hint that the fluid suits another elastomer better.
When to Use This Kit
- Flow from the outlet has become weak or uneven.
- The muffler is spitting liquid, pointing to a failed diaphragm.
- Elastomer parts look swollen or cracked at teardown.
Fits These ARO Pumps
- ARO PD03P-APS-PAA
- ARO PE03P-ARS-PAA-ADF
- ARO PE05P-ARS-PAA-BDE
- ARO PE03P-APS-PAA-A00
- ARO PE05P-BRS-PAA-BS0
- ARO PE03P-BPS-PAA-AP0
- ARO PE03P-BPS-PAA-AD0
- ARO PE03P-BRS-PAA-AD0
The full list runs to 21 models, so 13 more are not shown. Compare the nameplate model before you buy.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Material - Diaphragm | Santoprene |
| Material - Balls | Santoprene |
