Is the AT-505 suitable for both pneumatic and electronic controls

and electrical ratings

it must be replaced with a genuine Williams P321826

Using non-specified sealants can cause premature failure and combustion leaks

Field Serviceable: The removable actuator design allows for body replacement or maintenance without draining the entire system

BASO J991MDA-2 Pilot Burner Els PW 17895 Is the AT-505 suitable forThe BASO J991MDA 2 Pilot Burner is a critical ignition component engineered for high reliability performance in commercial and industrial gas fired equipment. This aerated pilot burner features a #1 tip position (90 degree left hand) configuration, ensuring precise flame impingement on the thermocouple or thermopile. As a direct replacement for the J991MDA 2H, it maintains identical fit, form, and function, simplifying field maintenance for service