Description
Watts F163765 1″ 40XL-7 Bronze Automatic Reseating Temperature & Pressure Relief Valve
The Watts F163765 is a heavy-duty, automatic reseating temperature and pressure (T&P) relief valve engineered to protect water heaters, boilers, and hydronic systems from dangerous overpressure and overtemperature conditions. Built with a durable bronze body, this 1-inch valve is rated for 150 psi and 210°F, making it a reliable safety solution for residential and light commercial applications.
This model features a 7-inch coated thermostat element that accurately senses water temperature at the heat source, ensuring prompt actuation before hazardous conditions can develop. The automatic reseating design allows the valve to return to its closed position once safe operating conditions are restored, minimizing downtime and service calls. A discharge line flood sensor is included, providing an added layer of protection by detecting water discharge at the drain line — an early warning of a relief event.
Key Features
- Automatic reseating design — returns to closed position after relief event
- Bronze body construction for corrosion resistance and long service life
- 1″ connection size for straightforward installation on standard water heater and boiler ports
- 150 psi pressure rating for reliable overpressure protection
- 210°F temperature rating for accurate high-temperature actuation
- 7″ coated thermostat element for precise temperature sensing at the heat source
- Discharge line flood sensor included — detects relief valve discharge events
Specifications
- Brand: Watts
- Model: 40XL-7
- SKU: F163765
- Connection Size: 1″
- Body Material: Bronze
- Pressure Rating: 150 psi
- Temperature Rating: 210°F
- Thermostat Length: 7″ (coated)
- Valve Type: Automatic Reseating Temperature & Pressure Relief
- Includes: Discharge Line Flood Sensor
Applications
- Residential and commercial water heaters
- Hot water boilers and hydronic heating systems
- Any pressurized water heating application requiring T&P overpressure protection
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