ensuring gas flow only occurs during active draft

allowing technicians to pinpoint issues such as liquid slugging

you can determine if the valve body is functional

the LP pilot assembly

Durable Construction: Built with high-grade copper and brass to resist corrosion and handle high-pressure R-410A environments

Armstrong Furnace R104519-02 Ball Valve 326070-701 ensuring gas flow only occursThe Armstrong Furnace R104519 02 Ball Valve is a high performance 7 8 inch service valve engineered for precision fluid regulation in residential and commercial HVAC systems. Constructed from heavy duty brass, this genuine OEM replacement part provides superior corrosion resistance and durability for demanding heating and cooling applications. As the direct successor to legacy part numbers 77W34 and 77W3401, it ensures seamless compatibility and