Description
The Watts LF174A is a high-capacity, lead-free pressure relief valve engineered for reliable overpressure protection in hydronic heating systems, boilers, and hot water applications. Designed to meet modern lead-free compliance standards, this valve delivers dependable performance and long service life in demanding commercial and residential installations.
Key Features
- Lead-free (LF) construction for compliance with low-lead content regulations
- 1-1/4″ (1.25″) connection size for higher-flow system applications
- Factory-set relief pressure of 75 PSI for precise overpressure protection
- Rated capacity of 3,429,000 BTU/hr (3,429K BTU/hr) to handle high-demand systems
- Designed for hydronic heating systems, boilers, and hot water heating applications
- Durable valve body construction for long-term reliability
- Part of the trusted Watts LF174A series — a proven industry standard for pressure relief
Specifications
- Brand: Watts
- Model: LF174A
- SKU: F121514
- Connection Size: 1-1/4″ (1.25″)
- Set Pressure: 75 PSI
- Rated Capacity: 3,429,000 BTU/hr
- Construction: Lead-Free (LF)
- Application: Hydronic heating, boiler systems, hot water heating
Why Choose the Watts LF174A?
Watts is a globally recognized leader in flow control products, and the LF174A series reflects their commitment to safety, quality, and code compliance. The lead-free body construction ensures this valve meets current regulatory requirements for potable water and hydronic systems, while the robust design provides consistent, accurate pressure relief to protect your system from dangerous overpressure conditions.
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