

A reliable and durable replacement part designed for smooth fluid flow and leak-free performance in high-pressure airless sprayers.
Graco 160238 NutPacking Fluid Valve is a precision-engineered replacement part designed for high-pressure airless sprayer systems. Constructed from hardened stainless steel, this valve ensures robust sealing, leak resistance, and long service life under demanding coating applications. Its tight, precision-machined seat supports consistent fluid flow and stable pressure — even under extreme pressure cycles — making it an ideal choice for professional contractors and spray-system maintenance.
| Component | Specification / Benefit |
|---|---|
| Body Material | 316 stainless steel — corrosion-resistant, suitable for solvent and industrial coatings |
| Seals / Packing | Interchangeable seal materials (NBR, FKM, PTFE) for compatibility with a wide range of fluids |
| Pressure Handling | Supports high-pressure operation typical for airless sprayers — ensures stable sealing under demanding conditions |
| Installation Tolerance | Precision-machined threads and valve seat (tight tolerance) for secure, leak-free installation |
When installing the 160238 NutPacking Fluid Valve, ensure the pump system is depressurized before disassembly. Use a calibrated torque wrench to tighten properly — the knurled nut design helps prevent overtightening. Inspect the packing stack for signs of wear (extrusion, delamination) and replace seals as needed. Regular inspection helps maintain optimal fluid delivery and minimizes downtime.
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