McDonnell & Miller 250-1-30 Valve Els PW 17895 When a device exhibits continuous

When a device exhibits continuous dripping from the relief valve

minimizing nuisance trips while maintaining mechanical reliability in high-cycle environments

and reduces fan noise during low-load conditions

including special Heat N Glow fireplace systems

Check your equipment's rating plate for the required orifice drill size and fuel type to ensure it matches the #54 LP specification

McDonnell & Miller 250-1-30 Valve Els PW 17895 When a device exhibits continuousFor high performance hydronic heating systems, the McDonnell & Miller 250 1 30 (Part Number 181925) is a heavy duty 1" NPT pressure relief valve engineered to protect ASME Section IV pressure vessels. This bronze body relief valve is factory set at 30 PSI and provides a substantial 1,170,000 BTU capacity to prevent over pressure conditions in large scale boiler applications. Designed for maximum durability, it features an EPDM rubber diaphragm and