Graco 17A563 Thermal Relief Valve – TP Series Airless Sprayers
Compatible Machines
- Graco TP Series Airless Sprayers
- Graco TexSpray Units with TP-series fluid sections
- Graco Industrial / Contractor Sprayers specified for TP-series thermal relief valves
*Confirm compatibility with your sprayer’s parts diagram before ordering.
Product Overview
The Graco 17A563 Thermal Relief Valve is a genuine OEM safety component engineered specifically for TP Series airless sprayers. It automatically relieves excess pressure caused by thermal expansion of fluid inside the system, helping protect hoses, pumps, and internal components during idle or high-temperature conditions.
Key Features & Benefits
- Thermal Pressure Protection: Releases pressure buildup caused by heat expansion.
- TP Series Specific: Designed for proper fit and performance in TP systems.
- OEM Graco Part: Meets original equipment safety and quality standards.
- Automatic Operation: No manual adjustment required.
- System Longevity: Helps prevent leaks, hose rupture, and pump damage.
Technical Details
| Part Number | 17A563 |
| Product Type | Thermal Relief Valve |
| Series Compatibility | TP Series |
| Function | Relieves pressure from thermal fluid expansion |
| Manufacturer | Graco |
Frequently Asked Questions
It protects TP Series airless sprayers by automatically releasing excess pressure caused by heat-related fluid expansion.
No. The 17A563 is designed specifically for TP Series systems and should not be substituted without confirmation from Graco documentation.
Replace the valve if it leaks, fails to relieve pressure, or during recommended maintenance intervals outlined in your sprayer’s service manual.
Important: Always depressurize the sprayer and follow Graco service procedures when replacing safety components.
