0386-0171 - TurboTorch ST-3 Extreme Swirl Tip for Propane and MAP-Pro

Technical Overview of the TurboTorch ST-3 Extreme STK Tip

The TurboTorch ST-3 Extreme STK Tip (SKU: 0386-0171) represents a significant advancement in air-fuel combustion technology for the industrial MRO, HVAC, and plumbing sectors. Engineered by Victor under the TurboTorch brand, this tip utilizes proprietary Extreme Swirl Technology. This design principle creates a high-velocity vortex within the combustion chamber, ensuring optimal mixing of fuel gas and air. The result is a highly concentrated, stable flame that delivers superior heat transfer rates compared to conventional venturi-style tips.

Designed for versatility and efficiency, the ST-3 tip is calibrated for use with both Propane and MAP-Pro (propylene-based) gases. When used with MAP-Pro, the tip achieves higher flame temperatures suitable for silver brazing and rapid soldering of large-diameter copper pipes. The unit features a size 3 orifice, making it an intermediate size ideal for a broad range of pipe diameters typically found in residential and light commercial installations. A key maintenance feature is the easy-to-clean orifice screw, which allows technicians to quickly clear obstructions caused by flux or carbon buildup without specialized tooling.

Mechanically, the tip is built for rigorous field use. It connects seamlessly to TurboTorch STK series handles and features a 360-degree swivel mechanism. This articulation is critical for maintaining proper flame orientation in confined spaces, such as inside wall cavities or between joists, without forcing the operator into ergonomic strain. The assembly is constructed from high-grade brass and stainless steel components to withstand high operating temperatures and mechanical impact.