and as a pilot valve for larger gas-powered regulators

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

as well as corrosion

consistent spark for reliable light-offs in cold starts

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

Watts 0556016 Valve 30067439-890 and as a pilot valveThe 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