ARO 637373-VV Viton 2" Fluid Section Service Kit
2" fluid section service kit with Viton diaphragms and balls for ARO PD20P-FKS-KVV and PD20P-FPS-PVV.
Viton service kit for a 2" ARO diaphragm pump fluid section, supplied with diaphragm, ball, gasket, U-cup, O-ring and a grease package.
For 2" ARO pumps built with Viton elastomers, the 637373-VV kit covers the fluid section rebuild. VV signals Viton for the diaphragm and Viton for the balls, the same pairing found in the PD20P-FKS-KVV and PD20P-FPS-PVV model codes.
The product notes list the contents as diaphragm, ball, O-ring, U-cup and gasket, along with a grease package. Viton is a fluoroelastomer, a material family often picked when other rubbers do not suit the fluid being moved. Check chemical compatibility for your own fluid against the pump documentation. Because the kit bundles seals with the wetted parts, plan to swap them all at the same teardown.
Symptoms This Kit Addresses
- Fluid is carried into the exhaust air stream.
- Leaks develop at gasket or O-ring joints on the fluid side.
- Suction weakens and the pump takes longer to draw fluid up.
Matching ARO Pumps
Read the full model number on the nameplate and confirm it is one of these before ordering.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Material - Diaphragm | Viton |
| Material - Balls | Viton |
| Notes | Service Kit (2" Diaphragm Pump Fluid Section), Includes: Grease Package; Gasket; U-Cup; O-Ring; Ball; Diaphragm |
