Williams P500420 Gas Valve 318518-761 it features integrated LED error

it features integrated LED error codes and flame current test pins

This pressure pilot is specifically designed for use with Spence Type E or Type C main valves to create a complete pilot-operated regulator assembly

The 7B switch is a potentiometer slide wire control used to provide a proportional signal to maintain exact water levels

This model includes trimmable stainless steel paddles to match specific pipe diameters from 1-1/4" to 16"

Williams P500420 Gas Valve 318518-761 it features integrated LED errorAs a seasoned tech, you know that maintaining precise manifold pressure is non negotiable for system safety and combustion efficiency. The Williams P500420 Gas Valve is an OEM replacement gas valve engineered specifically for Williams Comfort Products heating systems. This 10. 5" WC LP gas valve is factory calibrated for liquid propane (LP) applications, ensuring the correct fuel to air ratio for high output furnace gas valve performance. Whether you