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• 5651-121 OBSOLETE

• Expansion Valve 3/8" X 3/8"

Bard part 5651-121 is an OEM expansion valve with 3/8 inch by 3/8 inch connections that meters refrigerant into the evaporator to maintain proper feeding and stable superheat in Bard wall mounted air conditioners and related Bard HVAC equipment. When an expansion valve sticks, plugs, or loses control, you can see symptoms like poor cooling, coil icing, or unstable suction pressure, so replacing it with the correct Bard OEM valve helps restore designed capacity and reliable operation. Verify application by matching the part number to your unit model and serial, and have installation performed by a qualified technician since the job typically involves recovering refrigerant, brazing, evacuation, and recharging to specification.