Lochinvar & A.O. Smith 100274785 1.5" Pressure Relief Valve 4,237,000 BTU 50 PSI

The Lochinvar & A.O. Smith 100274785 1.5" Pressure Relief Valve is a safety part for high efficiency HVAC systems such as boilers and water heaters with a BTU rating of 4,237,000 and a maximum working pressure of 50 PSI. It automatically releases any pressure if it's better than the mechanical limit so that system is not damaged and to decrease hazards. Mechanical seals incorporating elastomer are generally used in commercial and industrial utilities where high- temperature water is used such as in heating systems, hot water production, and process industries. The benefits include increased safety, system protection and longer equipment life.