McDonnell & Miller 250-3/4-15 Valve Els PW 17895 providing stable and repeatable linear

providing stable and repeatable linear movement

Why does my rollout switch keep tripping

ensuring the safety sensor accurately detects flue obstructions by preventing air leaks at the mounting point

a NEMA-rated weather shield is required to protect the assembly from the elements

and weather-compensated heating resets

McDonnell & Miller 250-3/4-15 Valve Els PW 17895 providing stable and repeatable linearThe McDonnell & Miller 250 3 4 15 is a high performance 3 4" NPT Pressure Relief Valve engineered for critical over pressure protection in hydronic heating systems and storage tanks. Featuring a robust bronze body and seat, this valve is factory set at 15 PSI with a substantial thermal discharge capacity of 515,000 BTU hr. Designed to meet ASME Section IV code requirements for heating boilers, it utilizes an EPDM rubber diaphragm and seat disc to