This Lochinvar relief valve is a safety device designed to release excess pressure and temperature (T & P) within a system, maintaining an operational limit of 150 pounds per square inch (PSI). The valve is engineered to automatically open when the pressure or temperature exceeds the preset limit, effectively preventing potential damage or failure in the system. Constructed with high-grade materials for durability and longevity, it ensures reliable performance in various industrial applications. The Lochinvar relief valve also features an easy-to-use manual lever for testing and resetting purposes.