Description
Watts F382870 1″ Series 740 Iron Boiler Pressure Relief Valve — 60 psi
The Watts F382870 is a 1-inch Series 740 iron-body boiler pressure relief valve rated at 60 psi, engineered to provide dependable overpressure protection for residential and light commercial hot water heating systems. Built to automatically discharge excess pressure before it reaches dangerous levels, this valve is a critical safety component in any hydronic boiler installation.
Key Features
- 1″ inlet connection for straightforward integration into standard boiler piping
- 60 psi pressure relief rating — factory set for safe, reliable boiler protection
- Series 740 iron body construction for durability in hydronic heating applications
- Expanded outlets provide increased discharge flow capacity for added safety margin
- Discharge line flood sensor included — alerts to unwanted valve discharge events, helping prevent water damage and enabling proactive maintenance
- Designed for hot water heating boiler systems
Discharge Line Flood Sensor
The included discharge line flood sensor is a standout feature that sets the F382870 apart. When the relief valve opens and water flows through the discharge line, the flood sensor detects the presence of water and can trigger an alarm or notification. This allows building owners and technicians to identify overpressure events quickly, address root causes, and prevent costly water damage from undetected relief valve discharge.
Expanded Outlet Design
The expanded outlet configuration increases the cross-sectional area of the discharge port, improving flow capacity and reducing back pressure during a relief event. This design helps ensure the valve can fully discharge at its rated capacity, maintaining system safety even under demanding conditions.
Applications
- Residential and light commercial hot water heating boilers
- Hydronic heating systems requiring ASME-rated pressure relief protection
- Installations where discharge monitoring and flood detection are required
Why Choose Watts Relief Valves
Watts is a globally recognized leader in flow control and water quality products. The Series 740 line is trusted by HVAC professionals for its consistent performance, code-compliant design, and long service life in demanding boiler environments.







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