Watts 0121430 Valve 322838-752 Failure is often attributed to

Failure is often attributed to a ruptured internal diaphragm

The ASCO 8220G407 Solenoid Valve is a high-performance 2-way normally closed solenoid valve engineered for demanding steam and hot water applications

features a 2-lead spade connector interface

preventing the short-cycling and control hunting often seen with single-point sensors

meaning it remains open when de-energized and closes only when power is applied to the solenoid

Watts 0121430 Valve 322838-752 Failure is often attributed toThe Watts 0121430, also identified as the LFLLL40XL 150, is a high capacity automatic reseating temperature and pressure relief valve designed specifically for commercial and large residential hot water supply tanks. Featuring a 3 4 inch NPT male inlet and female outlet, this lead free T&P valve is engineered for systems requiring a high ASME steam relief rating of up to 1,437,000 BTU hr at 150 psi. The extended shank design, measuring 3 21 32 inches,