Watts 0163754 Valve Freon while the high-grade internal components

while the high-grade internal components prevent premature seat wear in demanding environments

potentially leading to premature failure

What is the difference between the LLL100XL and standard 100XL models

Designed for a precise fit in modulating condensing furnaces and secondary heat exchanger assemblies

it will not re-energize the circuit until the sensed temperature reaches 61°F

Watts 0163754 Valve Freon while the high-grade internal componentsThe Watts 0163754, also identified as the 40XL 7 100, is a heavy duty, automatic reseating temperature and pressure relief valve engineered for high capacity commercial water heating systems. Designed for precise protection, this 1 inch NPT valve manages thermal expansion and over pressure conditions with a 1,481,000 BTU hr steam discharge capacity. It features a durable bronze body and a 7 inch thermo bonded coated extension thermostat to ensure