OEM Compatibility: Specifically designed for Rheem-Ruud furnace temperature limit requirements to ensure board-mount alignment

signaling that the 3/4" probe may require inspection or the system needs a water top-off

this valve features 5/8" ODF solder connections and is rated for a maximum operating pressure of 450 PSI

90" WC rating

Lochinvar & A.O. Smith 100274781 Valve 320074-702 OEM Compatibility: Specifically designed forThe Lochinvar and A. O. Smith 100274781 Pressure Relief Valve is a critical safety component designed for high efficiency commercial boilers and water heaters. Engineered to handle a set pressure of 125 PSI, this ASME Section IV certified valve prevents catastrophic system failure by relieving excess pressure during thermal expansion or control malfunctions. This specific model features a 3 4 inch NPT inlet and outlet, providing a high BTU discharge