Description
The Watts F278450 is a 174A-series pressure relief valve engineered for dependable overpressure protection in commercial and industrial boiler and hydronic heating systems. With a 2-inch connection size, a 100 PSI set pressure, and a rated capacity of 9,970,000 BTU/hr, this relief valve is built to handle the demands of high-output heating applications.
Watts relief valves are a trusted name in the hydronic and steam industry, delivering consistent, code-compliant performance where safety is non-negotiable. The 174A series is designed to open precisely at its rated set pressure and reseat reliably, protecting your system from dangerous overpressure conditions.
Key Features
- Model: 174A series pressure relief valve
- Connection size: 2 inches
- Set pressure: 100 PSI
- Rated capacity: 9,970,000 BTU/hr
- Designed for boiler and hydronic heating system overpressure protection
- Reliable reseating performance after actuation
- Built to meet applicable ASME and ANSI safety standards for pressure relief applications
Applications
- Commercial and industrial boiler systems
- Hydronic heating systems
- High-capacity hot water heating equipment
- Steam and pressure vessel protection
Why Choose Watts Relief Valves?
Watts has been a global leader in flow control and water quality products for decades. Their 174A relief valves are manufactured to stringent quality standards, providing HVAC and plumbing professionals with the confidence that their systems are protected against overpressure events. The 9,970,000 BTU/hr capacity rating makes this valve well-suited for large commercial boiler installations where high flow relief is essential.
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