Watts 0556019 Valve

The Watts 0556019, technically identified as the LFN240X-6-150-1, is a heavy-duty 1-inch temperature and pressure relief valve engineered for high-capacity commercial water heating systems. Designed for precise overpressure protection, this valve features a lead-free copper silicon alloy body and a 6-inch stainless steel extension thermostat. With a dedicated 150 psi pressure relief setting and a 210°F temperature threshold, it ensures robust system safety in demanding mechanical environments. The Watts LFN240X-6 is built with an automatic reseating mechanism and tamper-resistant bonnet screws to maintain calibration integrity. Rated for a steam discharge capacity of 4,059,000 BTU/hr, it is an essential component for commercial hot water heaters and large-scale storage tanks. This specialized 1" T&P valve utilizes an NPT female inlet and outlet, facilitating a direct and secure fit for standard piping configurations. Its lead-free construction ensures full compliance with potable water regulations while providing veteran contractors with a reliable, non-mechanical seat-to-disc alignment solution for long-term field performance.

• Extreme Thermal Protection: Features a 6-inch stainless steel thermostat with a thermo-bonded coating to prevent mineral buildup and ensure accurate 210°F sensing.
• High BTU Rating: Capable of discharging up to 4,059,000 BTU/hr, making it suitable for high-output commercial boilers and water heaters.
• Advanced Monitoring Capability: Equipped with SentryPlus Alert technology and an integrated flood sensor to detect excessive discharge events (requires activation kit).
• Lead-Free Compliance: Constructed from a lead-free copper silicon alloy to meet strict federal safety standards for potable water applications.
• Rugged Reliability: Includes a manual test lever and tamper-resistant screws, ensuring the valve remains secure and functional in high-traffic mechanical rooms.

Is the Watts 0556019 compatible with BMS systems?
Yes, when paired with a Watts SentryPlus Alert activation kit, the integrated flood sensor can signal building management systems to report discharge events.

Can the LFN240X-6-150-1 be installed in any orientation?
For proper emergency pressure relief, it should be installed directly into the tank tapping or the hot water outlet piping within the allowable distance from the top of the tank, following local plumbing codes.

What is the difference between the 0556019 and the LFN240X-6?
They are identical components; 0556019 is the ordering code for the Watts 1" LFN240X-6 model with the 150 psi preset.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.