Graco 117597 Felt Washer 11/16 ID, 1-1/8 OD

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