Enhanced Airflow Efficiency: Optimized blade geometry ensures maximum CFM delivery and superior static pressure handling

The Lennox 38M7801 features a specific cut-in point of 450 PSI and a cut-out point of 250 PSI

making it a reliable choice for contractors seeking to reduce operational overhead while maintaining high torque for demanding mechanical loads

Code Compliance: Conforms to ASME specified standards for automatic water gauges

Utica-Dunkirk 14622011 Relief Valve 321042-401 Enhanced Airflow Efficiency: Optimized bladeFor veteran HVAC technicians and mechanical contractors service maintaining hydronic heating systems, the Utica Dunkirk 14622011 Relief Valve is the specified OEM replacement part for ensuring critical overpressure protection. This 3 4" relief valve 30# is engineered with a high grade durable brass construction, designed to withstand the rigorous thermal cycles of residential and commercial boiler operations. With a fixed pressure rating of 30 PSI and