Watts 0121430 Valve
The Watts 0121430, also identified as the LFLLL40XL-150, is a high-capacity automatic reseating temperature and pressure relief valve designed specifically for commercial and large residential hot water supply tanks. Featuring a 3/4 inch NPT male inlet and female outlet, this lead free T&P valve is engineered for systems requiring a high ASME steam relief rating of up to 1,437,000 BTU/hr at 150 psi. The extended shank design, measuring 3-21/32 inches, is ideal for water heaters with thick insulation, ensuring the 5-inch thermo-bonded coated thermostat reaches the hottest water in the top 6 inches of the tank. This valve utilizes a copper silicon alloy body to meet lead-free requirements while providing reliable protection against thermal expansion and runaway firing conditions. Built to ANSI Z21.22 and CSA standards, the Watts LFLLL40XL incorporates tamper-resistant bonnet screws and a non-mechanical seat-to-disc alignment for long-term field reliability in demanding HVACR environments.
Key Benefits- Extended Shank Design: The 3-21/32 inch shank allows for direct installation on heaters with extra-thick insulation without needing additional nipples.
- High BTU Capacity: Rated for 1,437,000 BTU/hr, making it suitable for high-output commercial storage tanks.
- Lead Free Construction: Manufactured with lead-free copper silicon alloy to comply with state and federal potable water regulations.
- Automatic Reseating: Features a test lever and internal spring mechanism that automatically reseats after temperature or pressure stabilization.
- Proven Temperature Sensing: The 5-inch probe features a special thermo-bonded coating to prevent mineral buildup and ensure accurate 210°F thermal response.
What is the difference between LFLL40XL and LFLLL40XL?
The "LLL" designation indicates an extra-long extended shank (3-21/32 inches) compared to the standard extended shank on the "LL" model, providing more clearance for heavily insulated tanks.
Can this valve be used for steam heating boilers?
No, this is a T&P relief valve designed for potable hot water supply tanks and heaters. For steam boiler applications, a dedicated steam safety valve must be selected.
Why is my T&P valve dripping occasionally?
Periodic dripping often indicates thermal expansion in a closed system or slight debris on the seat. If the valve discharges a high volume of water, it signifies an over-temperature or over-pressure condition that requires immediate inspection.
This item is not eligible for free shipping.
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.
Watts 0121430 Valve
The Watts 0121430, also identified as the LFLLL40XL-150, is a high-capacity automatic reseating temperature and pressure relief valve designed specifically for commercial and large residential hot water supply tanks. Featuring a 3/4 inch NPT male inlet and female outlet, this lead free T&P valve is engineered for systems requiring a high ASME steam relief rating of up to 1,437,000 BTU/hr at 150 psi. The extended shank design, measuring 3-21/32 inches, is ideal for water heaters with thick insulation, ensuring the 5-inch thermo-bonded coated thermostat reaches the hottest water in the top 6 inches of the tank. This valve utilizes a copper silicon alloy body to meet lead-free requirements while providing reliable protection against thermal expansion and runaway firing conditions. Built to ANSI Z21.22 and CSA standards, the Watts LFLLL40XL incorporates tamper-resistant bonnet screws and a non-mechanical seat-to-disc alignment for long-term field reliability in demanding HVACR environments.
Key Benefits- Extended Shank Design: The 3-21/32 inch shank allows for direct installation on heaters with extra-thick insulation without needing additional nipples.
- High BTU Capacity: Rated for 1,437,000 BTU/hr, making it suitable for high-output commercial storage tanks.
- Lead Free Construction: Manufactured with lead-free copper silicon alloy to comply with state and federal potable water regulations.
- Automatic Reseating: Features a test lever and internal spring mechanism that automatically reseats after temperature or pressure stabilization.
- Proven Temperature Sensing: The 5-inch probe features a special thermo-bonded coating to prevent mineral buildup and ensure accurate 210°F thermal response.
What is the difference between LFLL40XL and LFLLL40XL?
The "LLL" designation indicates an extra-long extended shank (3-21/32 inches) compared to the standard extended shank on the "LL" model, providing more clearance for heavily insulated tanks.
Can this valve be used for steam heating boilers?
No, this is a T&P relief valve designed for potable hot water supply tanks and heaters. For steam boiler applications, a dedicated steam safety valve must be selected.
Why is my T&P valve dripping occasionally?
Periodic dripping often indicates thermal expansion in a closed system or slight debris on the seat. If the valve discharges a high volume of water, it signifies an over-temperature or over-pressure condition that requires immediate inspection.
This item is not eligible for free shipping.
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.
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Description
The Watts 0121430, also identified as the LFLLL40XL-150, is a high-capacity automatic reseating temperature and pressure relief valve designed specifically for commercial and large residential hot water supply tanks. Featuring a 3/4 inch NPT male inlet and female outlet, this lead free T&P valve is engineered for systems requiring a high ASME steam relief rating of up to 1,437,000 BTU/hr at 150 psi. The extended shank design, measuring 3-21/32 inches, is ideal for water heaters with thick insulation, ensuring the 5-inch thermo-bonded coated thermostat reaches the hottest water in the top 6 inches of the tank. This valve utilizes a copper silicon alloy body to meet lead-free requirements while providing reliable protection against thermal expansion and runaway firing conditions. Built to ANSI Z21.22 and CSA standards, the Watts LFLLL40XL incorporates tamper-resistant bonnet screws and a non-mechanical seat-to-disc alignment for long-term field reliability in demanding HVACR environments.
Key Benefits- Extended Shank Design: The 3-21/32 inch shank allows for direct installation on heaters with extra-thick insulation without needing additional nipples.
- High BTU Capacity: Rated for 1,437,000 BTU/hr, making it suitable for high-output commercial storage tanks.
- Lead Free Construction: Manufactured with lead-free copper silicon alloy to comply with state and federal potable water regulations.
- Automatic Reseating: Features a test lever and internal spring mechanism that automatically reseats after temperature or pressure stabilization.
- Proven Temperature Sensing: The 5-inch probe features a special thermo-bonded coating to prevent mineral buildup and ensure accurate 210°F thermal response.
What is the difference between LFLL40XL and LFLLL40XL?
The "LLL" designation indicates an extra-long extended shank (3-21/32 inches) compared to the standard extended shank on the "LL" model, providing more clearance for heavily insulated tanks.
Can this valve be used for steam heating boilers?
No, this is a T&P relief valve designed for potable hot water supply tanks and heaters. For steam boiler applications, a dedicated steam safety valve must be selected.
Why is my T&P valve dripping occasionally?
Periodic dripping often indicates thermal expansion in a closed system or slight debris on the seat. If the valve discharges a high volume of water, it signifies an over-temperature or over-pressure condition that requires immediate inspection.
This item is not eligible for free shipping.
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.
