Graco 16T479 Nut Seat

Graco 16T479 Nut Seat – Replacement Valve Component

Compatible Machines

This Graco 16T479 Nut Seat fits specific Graco high-pressure valve assemblies. It is used inside the 16T481 check valve housing found on certain industrial sprayers.

• Graco systems using Check Valve Housing 16T481
• High-pressure Graco fluid transfer and pumping units rated up to 7250 PSI
• Any sprayer or rig that specifies Valve Model 16T481 in its parts manual

Product Details

The Nut Seat 16T479 is a precision-machined component located inside Graco’s high-pressure check valve assembly. It supports proper seating of the valve ball and spring, ensuring one-directional flow and stable system pressure.

• Used in 3/4" NPT(F) × 3/4" NPT(F) Check Valve Model 16T481
• Designed for high-pressure applications up to 7250 PSI
• Holds internal components such as the valve ball, spring, and guide
• Essential for maintaining correct valve function and preventing backflow

Why This Part Is Important

This nut seat plays a key role in the performance of high-pressure Graco valves. A worn or damaged seat can lead to pressure loss, poor priming, and inconsistent material flow. Replacing it restores valve reliability and system stability.

Frequently Asked Questions