Kunkle Valve 0537-H01-HM0075 Valve 320074-702 this specific 5LAY-03 housing is

this specific 5LAY-03 housing is optimized for the M and MH chassis

Durable Probe Construction: The 5-inch probe is designed to withstand high-velocity air streams and frequent thermal cycling in HVAC heating systems

this S21 series solenoid valve handles maximum pressures of 200 PSI for air and 140 PSI for water

and Lennox systems

While designed for a range of models

Kunkle Valve 0537-H01-HM0075 Valve 320074-702 this specific 5LAY-03 housing isThe Kunkle Valve 0537 H01 HM0075 is a high capacity ASME Section IV pressure relief valve designed specifically for hot water boilers, heat exchangers, and generators. Featuring a 2" Female NPT inlet and a 2 1 2" Female NPT outlet, this Model 537 valve is factory set at 75 PSI to handle demanding thermal expansion and over firing conditions. With a rated capacity of 11,960 lb h (PPH) or 11,959,631 BTU h, it provides critical overpressure protection by