Description
The Watts F121571 LF174A is a heavy-duty, lead-free pressure relief valve engineered for high-capacity hydronic heating and boiler systems. With a 2-inch connection size, a 125 PSI set pressure, and a rated capacity of 12,170,000 BTU, this valve delivers the robust overpressure protection required in demanding commercial and industrial heating applications.
Designed to automatically open and discharge excess pressure before it reaches dangerous levels, the LF174A safeguards boilers, heat exchangers, and hydronic systems from potentially catastrophic overpressure events. Its lead-free construction meets stringent plumbing and potable water safety standards, making it a code-compliant choice for a wide range of installations.
Key Features
- Lead-free (LF) construction for code-compliant, safe installations
- 2″ connection size for high-flow, large-capacity system integration
- 125 PSI set pressure provides reliable overpressure protection
- 12,170,000 BTU rated capacity suited for commercial and industrial boiler systems
- Automatic pressure relief operation protects system components from damage
- Durable materials engineered for long service life in hydronic heating applications
Specifications
- Brand: Watts
- Model: LF174A
- SKU: F121571
- Connection Size: 2″
- Set Pressure: 125 PSI
- Rated Capacity: 12,170,000 BTU
- Construction: Lead-Free
Applications
- Commercial and industrial boilers
- Hydronic heating systems
- High-capacity heat exchangers
- Steam and hot water heating plants
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