

The Graco 221077 Pressure Dump Valve safely releases trapped pressure and allows smooth switching between spray and prime modes for reliable sprayer performance.
The Graco 221077 Pressure Dump Valve is a genuine OEM replacement valve designed to safely relieve fluid pressure in compatible Graco airless paint sprayers. This valve plays a critical role in switching between spray and prime modes, flushing the system, and protecting internal pump components from dangerous pressure build-up.
| Part Number | 221077 |
|---|---|
| Product Type | Pressure Dump / Prime Valve |
| Function | Safely relieves system pressure and allows priming & flushing |
| Brand | Graco |
| OEM | Yes |
| Application | Airless paint sprayers & high-pressure fluid systems |
This valve is mounted directly into the pump fluid section. Always ensure the sprayer is fully powered off and pressure is released before replacing the valve. Use proper thread sealing where required and follow the machine service manual for correct torque specifications.
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