this specific part number is a heat exchanger with gasket assembly

though ensuring the drain plugs are properly positioned for the specific installation (shaft up or shaft down) is critical to prevent moisture accumulation

the internal adjustment allows you to set the gap between the activation of stage 1 and stage 2 from 2 to 7 degrees

For technicians serviceing legacy and modern systems

ASCO 8158A218X1X0000 Valve Body 326058-758 this specific part number isThe ASCO 8158A218X1X0000 Valve Body is a high performance 2 1 2 inch solenoid valve body engineered for robust flow control in industrial HVACR and commercial combustion systems. Designed with a 10 PSI MOPD (Maximum Operating Pressure Differential), this assembly ensures reliable fuel gas shutoff and fluid management under demanding conditions. As a cornerstone of the ASCO 8158 series, it features a durable construction that maintains integrity in