

Regulates fluid flow and prevents backflow in compatible Graco airless spray systems for consistent spray performance.
| Equipment Type | Compatibility Notes |
|---|---|
| Graco Airless Paint Sprayers | Compatible with select professional airless systems using restrictor/check/orifice assemblies. |
| Graco Contractor Series Systems | Used in contractor-grade sprayers where flow regulation and check control are required. |
| Graco Ultra Series Equipment | Applicable in select Ultra models that utilize OEM fluid control kits. |
| Graco Mark Series Sprayers | Installed in compatible Mark series units for fluid restriction and check valve regulation. |
Note: Always verify compatibility using your equipment’s OEM manual or parts breakdown before installation.
The Graco 25T638 Kit is a precision-engineered fluid control assembly designed to regulate paint or coating flow within professional airless spray systems. It combines a Restrictor, Check, and Orifice component to ensure consistent pressure control, proper fluid direction, and optimized spray performance.
This kit plays a critical role in maintaining system efficiency by preventing backflow, stabilizing spray patterns, and ensuring accurate material delivery. It is commonly used in high-performance Graco sprayers where controlled fluid dynamics are essential for professional finishing results.