Watts 0066440 Valve

The Watts 0066440 is a heavy-duty LLL100XL series temperature and pressure relief valve, engineered to provide critical automatic safety protection for hot water supply tanks and heaters. Designed for high-performance domestic and commercial systems, this 3/4 inch T&P relief valve is rated for a pressure setting of 150 PSI and a maximum temperature of 210°F. This specific model features an extra-extended shank, making it the preferred choice for contractors installing units with up to 3 inches of tank insulation. With a capacity of up to 105,000 BTU/hr, it ensures reliable discharge in emergency conditions. The unit is constructed with a rugged bronze body, a stainless steel spring, and includes a unique thermostat with a special thermo-bonded coating to prevent mineral buildup and ensure consistent accuracy. This ASME rated and CSA certified valve utilizes an MNPT inlet and FNPT outlet for seamless integration into standard plumbing manifolds.

• Extended Shank Design: Accommodates modern water heaters with up to 3 inches of thick insulation, eliminating the need for additional nipple extensions.
• Corrosion Resistance: Features a thermo-bonded protective coating on the sensing element to mitigate scale accumulation and extend service life in hard water conditions.
• Dual Protection: Provides a two-in-one safety solution by responding to both excessive internal pressure and thermal expansion emergencies.
• Certified Performance: Fully ASME rated and CSA listed to the requirements of ANSI Z21.22, ensuring compliance with local mechanical codes.

• What is the BTU rating for this valve? The Watts 0066440 is rated for water heaters and storage tanks up to 105,000 BTU/hr.
• Where should the sensing element be positioned? For proper operation, the temperature sensing probe must be immersed in the water within the top 6 inches of the tank.
• Is this valve suitable for lead-free requirements? This specific 0066440 LLL100XL model is a standard bronze construction; for potable water applications requiring 0.25% lead-free compliance, verify local jurisdiction requirements against the LFLL100XL series.

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.