Kunkle Valve 0537-D01-AHM0150 Valve 320788-703 the T-4000-622 maintains calibration accuracy

the T-4000-622 maintains calibration accuracy and optimizes overall system efficiency

often found in standard Lennox furnaces

while smart diagnostic LEDs offer immediate visual status for power

It provides fast heat-up and stable operation

If your furnace blower runs continuously while the burners stay off

Kunkle Valve 0537-D01-AHM0150 Valve 320788-703 the T-4000-622 maintains calibration accuracyThe Kunkle Valve 0537 D01 AHM0150 is a high performance ASME Section IV safety relief valve engineered specifically for low pressure hot water boilers, heat exchangers, and generators. Featuring a 3 4" Female NPT inlet and a 1" Female NPT outlet, this bronze safety relief valve is factory set at 150 PSI to manage overpressure caused by thermal expansion or control failure. With a certified steam capacity of 3972 lb h (3,971,876 BTU h), it provides