Description
The Watts 0121589 LFN240X-9 is a 1-inch lead-free temperature and pressure (T&P) relief valve engineered to provide dependable overpressure and overtemperature protection for residential and commercial boilers, water heaters, and hydronic heating systems. With a 150 PSI pressure rating and a 4,059,000 BTU/hr discharge capacity, this valve is built to handle demanding system requirements while keeping installations safe and code-compliant.
The “LF” designation confirms lead-free construction, meeting the requirements of NSF/ANSI 61 and applicable safe drinking water regulations — making it suitable for potable water applications. The N240X-9 series is a trusted Watts design known for its precision-calibrated relief mechanism and durable materials.
Key Features
- 1-inch valve size for straightforward installation on standard boiler and water heater connections
- 150 PSI pressure rating provides robust overpressure protection
- 4,059,000 BTU/hr discharge capacity handles high-output heating systems
- Lead-free (LF) construction complies with NSF/ANSI 61 and safe drinking water standards
- Temperature and pressure (T&P) dual-function relief for comprehensive system safety
- Precision-calibrated relief mechanism ensures accurate and reliable actuation
- Durable materials designed for long service life in hydronic and potable water systems
Specifications
- Brand: Watts
- SKU: 0121589
- Model: LFN240X-9
- Valve Size: 1 inch
- Pressure Rating: 150 PSI
- BTU/hr Capacity: 4,059,000 BTU/hr
- Construction: Lead-Free (LF)
- Type: Temperature & Pressure (T&P) Relief Valve
Applications
- Residential and commercial boilers
- Domestic hot water heaters
- Hydronic heating systems
- Potable water systems requiring lead-free compliance
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