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Bard 5651-218BX - Expansion Valve

The Bard 5651-218BX is an OEM expansion valve supplied boxed for Bard wall mounted and packaged HVAC equipment, designed to meter refrigerant flow into the evaporator coil so the system can maintain stable superheat and consistent cooling performance. When a valve is restricted, stuck, or out of calibration, you may see poor capacity, icing, or unstable pressures, so replacing it with the correct Bard part helps restore proper refrigerant control and protect the compressor. Because expansion valves are application specific by tonnage and refrigerant, confirm the exact part number against your unit model and serial before ordering, and follow Bard service procedures for installation, evacuation, and charging.


  • Technical Specifications
  • Product number: 5651-218BX
  • Manufacturer description: Expansion Valve - Boxed
  • Weight: 0.650 lbs
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 5651-218 (Obsolete, superseded by 5651-218BX)

$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.