Description
The Watts F121524 is a 1-1/4″ LF174A series lead-free pressure relief valve engineered to provide dependable overpressure protection for residential and commercial boiler and hydronic heating systems. Built to Watts’ exacting standards, this relief valve features a lead-free construction that meets modern plumbing code requirements, making it suitable for potable water and heating system applications alike.
Key Features
- Lead-free (LF) construction for compliance with low-lead plumbing regulations
- 1-1/4″ (1.25″) connection size for straightforward installation on standard boiler tappings
- 125 PSI pressure relief setting to protect boiler and system components from dangerous overpressure conditions
- 5,370,000 BTU/hr (5,370K) rated discharge capacity for high-output heating systems
- Watts LF174A series — a trusted name in boiler safety relief valves
- Designed for use on hot water heating boilers and hydronic systems
Product Specifications
- SKU: F121524
- Model: LF174A
- Connection Size: 1-1/4″ (1.25″)
- Set Pressure: 125 PSI
- BTU Capacity: 5,370,000 BTU/hr
- Construction: Lead-Free
- Brand: Watts
Application
The Watts LF174A relief valve is ideal for protecting hot water boilers and closed-loop hydronic heating systems from exceeding their maximum allowable working pressure. Its generous 5,370K BTU discharge capacity makes it well-suited for larger boiler installations where high heat output demands reliable safety relief. The lead-free body construction ensures compliance with the Reduction of Lead in Drinking Water Act and similar state and local codes.
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