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5651-039 OBSOLETE
- Expansion Valve 1/2X7/8 ODF-5'
Bard part number 5651-039 is an OEM thermostatic expansion valve assembly used in Bard wall mounted air conditioners and heat pump systems to meter refrigerant into the evaporator and maintain stable superheat under changing loads. This valve is specified as 1/2 inch by 7/8 inch ODF connections with a 5 foot sensing bulb capillary, making it a common fit for field replacement where correct line sizes and bulb placement matter for performance and compressor protection. If you are chasing symptoms like coil frosting, poor cooling, or erratic suction pressure, replacing the metering device with the correct Bard OEM valve helps restore proper refrigerant control and reliable operation, but always confirm model and serial compatibility in the Bard parts list before ordering.
Official replacement(s):
5651-100
- Expansion Valve 1/2X7/8X1/4ODF