Compatible Machines – Graco 239267 Pressure/Drain Valve Kit
Use this OEM valve to restore reliable prime/spray/drain control on many Graco airless sprayers and rigs. Always confirm against your model’s parts manual.
- GM 7000 gas rig
- Graco GM 3500 piston-pump rigs
- Ultra Max II 695, 795, 1095, 1595
- GMax II 5900, GMax II 7900
- LineLazer 5900, 200 HS stripers
- Magnum ProX19 (requires matching manifold/port spec)
- Legacy Lo-Boy Cart Airless Sprayers:
- 231-577
- 231-085
- 231-579 (Series A)
- 231-077
About the Part
The Graco 239267 Pressure Drain Valve Kit (often called the prime/spray valve) replaces the complete valve body and internal mechanism that controls line pressurization and safe pressure relief/draining. A fresh valve helps cure hard-to-prime issues, leak-back while spraying, or failure to depressurize.
Key Specs
| Function | Controls prime/spray/drain flow path and relieves system pressure |
| Port / Thread | Typical 3/8" NPT(F) manifold interface (verify on your unit) |
| Mounting | Common Graco valve body pattern (check bolt style/position on your sprayer) |
| Build | OEM body, handle, poppet/seat, seals |
| OEM | Genuine Graco replacement part |
What’s Included
- Valve body & handle assembly
- Internal poppet/seat & spring components
- Seals/O-rings as supplied by Graco for this kit
When to Replace
- Won’t hold spray pressure or bleeds back to prime
- Valve leaks at the body or won’t fully depressurize
- Handle feels gritty/binds after cleaning or rebuild attempts
Installation Notes
- Depressurize and flush per Graco safety procedures before removal.
- Lightly lubricate O-rings; avoid over-torquing into aluminum manifolds.
- Leak-check at low pressure after install, then verify prime → spray operation.
Frequently Asked Questions
Many Ultra Max II models use this pressure/drain valve style. Confirm by checking your unit’s parts list for 239267 (or an explicitly cross-referenced supersession) and verifying the manifold thread and mounting pattern.
Difficulty priming, pressure loss while spraying, constant bypass to the drain hose, or inability to relieve pressure when switching to drain mode are common indicators.
Yes—this listing is for a Genuine Graco replacement kit. Using OEM parts helps maintain performance and compatibility.
Follow Graco guidance for your manifold thread type. Typically, apply approved thread sealant on NPT threads; avoid contaminating internal passages. Do not over-torque.
Some sprayers use alternate valve bodies. If your parts manual lists a different number, order that exact part or its official supersession. Contact support with your model & series for a precise match.
