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Bard 5651-234BX - Thermal Expansion Valve 3/8 x 3/8

The Bard 5651-234BX is an OEM thermal expansion valve used in Bard wall-mount air conditioners and heat pumps to meter refrigerant into the evaporator for stable superheat control and dependable cooling performance. With 3/8 inch by 3/8 inch connections and boxed packaging, this TXV is a common fix when a system is starving or flooding the evaporator, hunting, or showing poor capacity due to a sticking or restricted metering device. For best results, confirm the unit model and refrigerant type from the Bard service literature before ordering, since TXVs are application-specific and correct match is critical for proper charge and operation.


  • Technical Specifications
  • Product number: 5651-234BX
  • Manufacturer description: Expansion Valve - Boxed 3/8" X 3/8"
  • Weight: 0.650 lbs
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 5651-234 (Obsolete, superseded by 5651-234BX)

$277.00

What does the "BX" suffix mean?

Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.

A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.

Example: 8406-142BX is physically identical to 8406-142.