Description
The Watts F556008 (Model 40XL-4-150) is a heavy-duty, 1-inch Temperature and Pressure (T&P) Relief Valve engineered for commercial water heaters and hydronic heating systems demanding high-capacity overpressure and overtemperature protection. With an impressive BTU rating of 2,134,000, this valve is built to safeguard large-volume water heating equipment from potentially dangerous pressure and temperature excursions.
Key Features
- 1-inch NPT inlet connection for straightforward installation on commercial water heaters and boilers
- 150 PSI pressure relief setting to protect system integrity under high-demand conditions
- 210°F temperature relief setting, activating before unsafe thermal conditions develop
- 2,134,000 BTU discharge capacity — ideal for large commercial and industrial water heating applications
- Watts 40XL series design, a trusted industry standard for T&P relief valve performance and reliability
- Durable construction engineered to meet the rigorous demands of commercial HVAC and plumbing systems
Application
The Watts 40XL-4-150 T&P Relief Valve is designed for use on commercial water heaters, storage tanks, and hydronic heating systems where high BTU output demands robust overpressure and overtemperature protection. It automatically opens to release excess pressure or temperature, preventing catastrophic equipment failure and ensuring occupant safety.
Product Specifications
- SKU: F556008
- Model: 40XL-4-150
- Brand: Watts
- Inlet Size: 1 inch NPT
- Pressure Setting: 150 PSI
- Temperature Setting: 210°F
- BTU Rating: 2,134,000 BTU/hr
- Application: Commercial water heaters, hydronic heating systems
