Lochinvar & A.O. Smith 100263840 Valve 30067439-890 the Watts 740 Series is

the Watts 740 Series is strictly an emergency safety relief valve and should never be used as a primary operating pressure control

It is usually mounted on the gas train assembly

This specific model is designed strictly for hot water heating and supply systems

a critical factor for guest room comfort

This kit replaces legacy part number 887182 and is the standard for commercial and residential backflow repair

Lochinvar & A.O. Smith 100263840 Valve 30067439-890 the Watts 740 Series isThe Lochinvar & A. O. Smith 100263840 Valve is a professional grade 2 inch brass drain valve designed for heavy duty commercial and residential water heating systems. As an authentic OEM replacement part, this full port ball valve ensures maximum flow rates during system flushing, effectively clearing out the scale and sediment that compromise heat transfer efficiency. Engineered from high quality corrosion resistant brass, it provides a robust