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Bard 5651-212BX - Thermal Expansion Valve (TXV)

The Bard 5651-212BX is an OEM thermal expansion valve (TXV) supplied boxed for service replacement, designed to meter refrigerant flow into the evaporator coil and maintain proper superheat for stable cooling operation. A properly functioning TXV helps prevent evaporator icing and protects the compressor by maintaining correct refrigerant feeding under changing load conditions, which is especially important on Bard wall-mounted and package-style systems that rely on precise refrigerant control. Because TXVs are application-specific, confirm the exact part number match and verify required connection sizes and refrigerant compatibility in your Bard unit documentation before installation.


  • Technical Specifications
  • Product number: 5651-212BX
  • Manufacturer description: Expansion Valve - Boxed
  • Weight: 0.650 lbs
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 5651-212 (Obsolete, superseded by 5651-212BX)

$122.00

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.