The Graco 866330 Discharge Valve Seat ensures proper sealing in the pump’s discharge valve assembly, preventing backflow and maintaining consistent spray pressure.
The Graco 866330 Seat – Discharge Valve is a genuine OEM seal component used in the discharge valve assembly of Graco pump systems. It helps maintain proper sealing and pressure control when fluid exits the pump assembly toward the spray gun. :contentReference[oaicite:1]{index=1}
This discharge valve seat fits into discharge/value assemblies on various Graco airless sprayers and professional pump units that use similar valve seat hardware:
| Part Number | 866330 |
|---|---|
| Component Type | Seat – Discharge Valve |
| Function | Provides sealing in the pump’s discharge/valve assembly |
| Use | OEM replacement in Graco pump discharge valve |
| Compatible With | Graco airless sprayers & pump units requiring this discharge seat |
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