Description
Watts 40XL-150/210FS 1-Inch Temperature & Pressure Relief Valve
The Watts F163725 is a 1-inch Temperature and Pressure (T&P) Relief Valve from the trusted Watts 40XL series, designed to provide critical overpressure and overtemperature protection for residential and light commercial water heaters, storage tanks, and hydronic heating systems. When system temperature or pressure exceeds safe operating thresholds, this valve automatically opens to discharge excess energy — protecting equipment and occupants from potentially dangerous conditions.
Key Features
- Series: Watts 40XL — a proven, industry-standard T&P relief valve line
- Connection size: 1 inch
- Pressure rating: 150 PSI
- Temperature rating: 210°F
- Full-size (FS) configuration for reliable, high-flow discharge capacity
- Automatic reseating design for dependable operation
- Durable brass construction for long service life in potable water and hydronic applications
- Suitable for water heaters, storage tanks, and hydronic boiler systems
Application
The Watts 40XL T&P relief valve is the go-to safety device for water heater and boiler installations where code-compliant overpressure and overtemperature protection is required. Its 150 PSI pressure rating and 210°F temperature rating make it well suited for a wide range of residential and commercial hot water systems.
Why Choose Watts
Watts is a globally recognized leader in flow control and water quality products. The 40XL series reflects decades of engineering expertise, delivering reliable safety performance that meets or exceeds industry standards. Plumbers, HVAC contractors, and hydronic system installers trust Watts T&P relief valves for code-compliant, long-lasting installations.
Specifications
- SKU: F163725
- Brand: Watts
- Model: 40XL-150/210FS
- Connection Size: 1 inch
- Pressure Setting: 150 PSI
- Temperature Setting: 210°F
- Valve Type: Temperature & Pressure (T&P) Relief Valve
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