consistent spark for reliable light-offs in cold starts

or panel mount

Optimized Filtration: The 20-micron internal filtration pad captures copper filings and debris before they reach delicate TXV components

maintaining consistent discharge air temperatures in direct and indirect-fired makeup air units or space heating applications

it is best practice to isolate the valve if significant torque is required to avoid potential stem blowout or hardware failure

Watts 0556016 Valve 30067439-890 consistent spark for reliable light-offsThe Watts 0556016 (model LF40XL 150 3 4) is a heavy duty, automatic reseating temperature and pressure relief valve engineered for critical protection in commercial hot water supply systems. Designed for large scale storage tanks and water heaters, this 3 4 inch NPT valve features a 5 inch thermo bonded coated thermostat probe. This specialized coating is essential for service longevity, as it effectively retards mineral accumulation and scale buildup