Common Questions What was the original part number for this cartridge

ensuring accurate valve positioning

while the 4-inch W

providing superior resistance to oxidation and physical handle-shock

including the 005 and 006 models

Lochinvar & A.O. Smith 100110739 Valve 326010-701 Common Questions What was theThe Lochinvar & A. O. Smith 100110739 is an OEM spec 1 inch T&P relief valve engineered for high output commercial and residential water heating systems. Designed to trigger at a 150 PSI pressure setting or a thermal limit of 210F, this valve provides critical over pressure and over temperature protection to prevent catastrophic tank failure. It features a 1" MNPT inlet and 1" FNPT outlet, ensuring a high capacity discharge flow rated at 500,000 BTU