0323-0328 - Victor Type 55 Size 8 Multi-Flame Heating Head for Alternative Fuels

Technical Overview of the Victor Type 55 Heating Nozzle

The Victor 0323-0328 is a Size 8, Type 55 multi-flame heating nozzle engineered for heavy industrial applications requiring significant heat input. This component is specifically designed to operate with alternative fuel gases, including Propylene, Methane, Propane, Butane, and Natural Gas. It is strictly prohibited for use with Acetylene due to the flow characteristics and volume requirements of the multi-flame head. The nozzle assembly measures 11 inches in length, providing the operator with adequate reach and distance from the heat source during high-intensity operations.

Technically, the Type 55 series distinguishes itself with a raised center point on the face of the nozzle head. This geometric feature serves a critical protective function: it prevents the flame orifices from being compressed or occluded should the head inadvertently contact the workpiece (bumping the plate). By maintaining the integrity of the flame path, the nozzle ensures consistent thermal transfer and reduces the risk of pressure buildup at the face. Furthermore, the internal mixer design has been optimized to enhance flow performance and provide superior resistance to sustained backfire, a common issue in high-output heating applications.

In terms of output, the Size 8 configuration is capable of delivering approximately 212,300 BTUs per hour when utilizing Propane. This thermal capacity makes it suitable for demanding tasks such as heat treating, metal straightening, and priming heavy plate. The nozzle is designed to interface with Victor 300 Series torch handles, as well as the HD 310C handle, utilizing a 3/8-inch hose to ensure sufficient gas volume delivery. The assembly represents a robust solution for MRO environments where alternative fuels are preferred for their economy and safety profiles compared to acetylene.

The unit is constructed as a heavy-duty assembly, often referred to as a "rosebud," and is essential for fabrication shops dealing with structural steel or large pipe diameters. The integration of the mixer and the tip into a cohesive design ensures that the fuel-oxygen ratio is maintained correctly across the wide range of flow rates required for this size of heating head.