Description
The Watts F121470 is a 3/4″ lead-free automatic relief valve engineered for reliable overpressure protection in residential and light commercial boiler and hydronic heating systems. Built to the LF174A specification, this valve features lead-free brass construction to meet modern plumbing and potable water safety standards, making it a compliant and dependable choice for today’s installations.
Key Features
- Lead-free brass body construction — compliant with low-lead content requirements
- 3/4″ connection size for standard boiler and hydronic system piping
- 75 PSI factory-set relief pressure for precise overpressure protection
- 1,320,000 BTU/hr rated capacity to handle high-output heating systems
- Automatic operation — opens to relieve excess pressure and reseats when pressure normalizes
- Compact, rugged design for long service life in demanding hydronic environments
Specifications
- Brand: Watts
- SKU / Part Number: F121470
- Model: LF174A
- Connection Size: 3/4″
- Set Pressure: 75 PSI
- Rated Capacity: 1,320,000 BTU/hr
- Construction: Lead-Free Brass
- Application: Boiler & Hydronic Heating Systems
Application
The Watts LF174A relief valve is designed to protect boilers, water heaters, and hydronic heating systems from dangerous overpressure conditions. When system pressure exceeds the 75 PSI set point, the valve automatically opens to discharge excess pressure, then reseats once safe operating conditions are restored. The 1,320,000 BTU/hr capacity rating ensures this valve is suited for high-output commercial and residential boiler applications. Its lead-free construction makes it the preferred choice for installations requiring compliance with lead-free plumbing codes.
Reviews
There are no reviews yet.