Compatible Machines & Applications
- Graco King Series – displacement pump systems
- Graco UltraMax II / GMAX II – high-pressure sprayers
- Graco ProX Series – airless sprayer assemblies
- Graco Reactor E Series – fluid handling and coating systems
Graco 117597 Felt Washer Overview
The Graco 117597 Washer Felt (11/16 ID × 1-1/8 OD) ensures precision sealing and reliable fluid flow in high-pressure airless sprayers.
- Material: Premium-grade compressed wool felt for durability and wear resistance
- Function: Seals pump assemblies, reduces leakage, and supports filtration
- Pressure Rating: Up to 3,500 psi
- Installation: Seats easily on piston rods under gland nut compression
- Maintenance: Inspect every 500 operational hours for optimal performance
Design & Materials
Manufactured from needle-punched wool felt with a consistent porosity gradient, the washer maintains dimensional stability and withstands high-pressure fluid flow while reducing friction.
Operational Role
Serves as a passive filter and mechanical seal between packing nuts and piston rods, preventing fluid migration and debris entry while supporting efficient pump operation.
Installation & Maintenance
Seat washer on piston rod, compress under gland nut. Inspect regularly for fiber compaction or fraying. Replace every 500 hours for optimal sealing and pump efficiency.
Frequently Asked Questions
The felt washer acts as a seal and filter in high-pressure pumps, preventing fluid leaks and debris ingress to maintain smooth operation.
Replacement is recommended every 500 operational hours or if signs of wear, fraying, or compaction appear.
Yes, the felt washer resists abrasive and high-solid-content coatings, maintaining seal integrity and reducing fiber degradation.
