ARO 637401-SV EXP Service Kit, Viton and 316 Stainless Steel
1 in. fluid section service kit: Viton diaphragm, 316 stainless balls, gasket, U-cup, O-ring and washer
ARO 637401-SV services a 1 in. pump fluid section with a Viton diaphragm and 316 stainless steel balls, plus a gasket, U-cup and O-ring.
Built for the 1 in. fluid section, the ARO 637401-SV EXP Service Kit combines Viton diaphragm material with 316 stainless steel check balls. It is the Viton version within the 637401 kit series. Choose it when your pump model calls for Viton rather than Santoprene.
The kit notes list a grease package, gasket, U-cup, O-ring, washer, ball and diaphragm. That covers the flexing member, the check valves and the static seals you disturb when the fluid section comes apart, so one order handles a full teardown.
When to Use This Kit
- The pump keeps running but moves less liquid per minute than it used to.
- Leaks appear around the fluid section joints or gasket faces.
- A diaphragm has failed and fluid is reaching the air side.
Fits These ARO Pumps
Match your nameplate to one of these PD10 models:
Each of these model codes closes with SV, the same letters that end this kit number.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Material - Diaphragm | Viton |
| Material - Balls | 316 Stainless Steel |
| Notes | Service Kit (1" Diaphragm Pump Fluid Section), Includes: Grease Package; Gasket; U-Cup; O-Ring; Washer; Ball; Diaphragm |
