Description
The Watts 0121513 LF174A is a lead-free, 1-1/4″ pressure relief valve engineered for dependable overpressure protection in residential and commercial hydronic heating systems. With a factory-set relief pressure of 50 PSI and a rated capacity of 2,459,000 BTU/hr, this valve is built to handle high-demand applications while maintaining system safety and code compliance.
Watts’ LF174A series is recognized for its robust construction and lead-free design, making it suitable for potable water and hydronic heating systems where low-lead compliance is required. The valve automatically opens to discharge excess pressure when system pressure exceeds the set point, protecting boilers, water heaters, and associated piping from potentially dangerous overpressure conditions.
Key Features
- Lead-free construction for compliance with low-lead regulations
- 1-1/4″ inlet connection for straightforward installation on standard hydronic piping
- Factory-set relief pressure: 50 PSI
- Rated capacity: 2,459,000 BTU/hr
- Designed for boiler and hydronic heating system overpressure protection
- Automatic pressure relief — opens when system pressure exceeds set point
- Durable valve body suitable for high-demand commercial and residential applications
Specifications
- Brand: Watts
- Model: LF174A
- SKU: 0121513
- Connection Size: 1-1/4″
- Set Pressure: 50 PSI
- Rated Capacity: 2,459,000 BTU/hr
- Lead-Free: Yes
Applications
- Hydronic heating boilers
- Hot water heating systems
- Commercial and residential boiler installations
- Overpressure protection for closed-loop heating systems
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