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Bard 5651-034BX - Natural gas valve 1/2 x 3/4

Bard part 5651-034BX is an OEM natural gas valve supplied as a boxed service part for Bard wall mounted gas heat packages and other Bard heating applications. This valve controls and regulates the flow of natural gas to the burner during a call for heat, helping maintain safe ignition and stable heat output when the control board energizes the gas circuit. It is commonly referenced as a 1/2 inch by 3/4 inch natural valve, so confirming your unit model and the original valve connection sizes before ordering is important for proper fit and leak free installation. Because gas valves are a safety critical component, installation and gas pressure setup should be performed by a qualified technician following Bard service documentation and local codes.


  • Technical Specifications
  • Product number: 5651-034BX
  • Manufacturer description: Natural Valve - Boxed 1/2" X 3/4"
  • Weight: 4.100 lbs
  • HTS Code: "8481.80.9090"

  • Previous Versions
  • 5651-034 (Obsolete, superseded by 5651-034BX)

$164.00

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.