Description
The Watts F383740 is a high-capacity pressure relief valve from the trusted Watts 740 Series, engineered to provide dependable overpressure protection for steam boilers and hydronic heating systems. With a 1.5″ inlet and 2″ outlet configuration and a 40 PSI set pressure, this valve is rated to safely discharge up to 3,569,000 BTU/hr — making it well-suited for large commercial and industrial boiler applications.
The Watts 740 Series is designed to meet the demanding safety requirements of steam and hot water heating systems. When system pressure exceeds the set point, the valve opens automatically to relieve excess pressure and protect equipment and personnel from potentially dangerous overpressure conditions.
Key Features
- High BTU capacity rating of 3,569,000 BTU/hr for large-scale applications
- 40 PSI (40#) set pressure for reliable overpressure protection
- 1.5″ inlet x 2″ outlet configuration for efficient discharge flow
- Part of the Watts 740 Series — a proven line of boiler safety relief valves
- Designed for steam boiler and hot water heating system installations
- Automatic pressure relief to safeguard equipment and system integrity
Specifications
- SKU: F383740
- Model: 740-1.5″-40#
- Series: Watts 740
- Inlet Size: 1.5″
- Outlet Size: 2″
- Set Pressure: 40 PSI
- BTU/hr Capacity: 3,569,000 BTU/hr
- Application: Steam boiler and hydronic heating systems
Applications
- Commercial and industrial steam boiler systems
- Large hydronic heating installations
- Hot water heating systems requiring high-capacity pressure relief
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