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Bard 5651-015BX - Head pressure control valve

The Bard 5651-015BX is an OEM head pressure control valve supplied boxed for service replacement in Bard wall mounted air conditioning and heat pump equipment. This mechanical refrigerant control component helps manage condenser head pressure during low ambient operation so the system can maintain stable refrigerant flow and consistent cooling performance when outdoor conditions change. Using the correct Bard valve is important because the unit’s control strategy and piping configuration depend on proper valve selection and calibration for reliable operation and compressor protection. Always confirm the part number against your Bard model and serial information before ordering, and have installation performed by a qualified HVAC technician following Bard service procedures.


  • Technical Specifications
  • Product number: 5651-015BX
  • Manufacturer description: Head Pressure Control Valve Boxed
  • Weight: 1.250 lbs
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 5651-015 (Obsolete, superseded by 5651-015BX)

$307.00

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.