999224 - Oxweld Style Heavy Duty Heating Tip Size 70 for Propane/Natural Gas

Technical Overview of the ESAB Oxweld Style O-FG #70 Heating Tip

The ESAB 999224 is a high-capacity, multi-flame heating tip designed according to the classic Oxweld O-FG specification. This 'Rosebud' style tip is engineered specifically for use with alternative fuel gases, such as Propane, Natural Gas, and Propylene. Unlike acetylene tips, which are limited by withdrawal rates from the cylinder, this O-FG tip allows for sustained high-volume heat output required for heavy industrial applications. The Size 70 designation indicates a large orifice configuration capable of delivering significant BTU output, making it suitable for working with heavy plate, structural members, and large castings.

Constructed from high-grade copper and brass, the tip is designed to withstand the intense reflected heat generated during prolonged heating cycles. The internal gas mixing chambers are calibrated to ensure a stable flame profile with alternative fuels, preventing the instability or flame lift-off often encountered when using generic tips with natural gas or propane. The tip features a standard Oxweld-style seating interface, ensuring compatibility with heavy-duty torch handles such as the W-17 or W-22 series. This compatibility allows operators to easily switch between cutting and heating attachments on the same torch body.

From a maintenance and safety perspective, the multi-flame design distributes heat over a wider surface area compared to single-point tips, reducing the risk of localized overheating while maximizing thermal soak. It is critical to note that this tip is not designed for use with Acetylene; using it with Acetylene could result in dangerous flashback or soot accumulation due to the different combustion velocity and volume requirements of that gas. This unit is strictly for alternate fuel gas service.