Built from polished brass

and mechanical oils commonly found in HVAC and hydraulic systems

maintaining the factory-specified pressure differentials required for optimal burner performance

providing ample overhead for heavy-duty DC circuits

and Miller HVAC units

Amana-Goodman B1284654 Expansion Valve 30067439-890 Built from polished brassThe Amana Goodman B1284654 Expansion Valve is a technical grade OEM HVAC replacement part engineered for precise metering of liquid refrigerant within the evaporator coil. This fixed orifice expansion valve for AC units is vital for maintaining the thermal balance of the refrigeration cycle, ensuring the system operates at peak efficiency by regulating flow based on load requirements. Designed for seamless integration with Goodman and Amana heat pumps