Description
The Bosch HVAC 7746900148 Venturi 423.173A controls the movement of gas and combustion air through a compatible burner assembly. As gas accelerates through the internal throat, the resulting pressure conditions draw combustion air into the fuel stream, creating the required air-fuel mixture. The assembly connects to the burner and gas piping through its inlet, outlet, and mounting interfaces. Positioned within the combustion pathway, the Venturi operates in HVAC systems where controlled gas-air mixing is required before the mixture reaches the burner. Its internal passage establishes the flow conditions needed for consistent fuel-air mixing and combustion during burner operation.
