4-W-1 - Uniweld Type 4-W-1 Welding Nozzle for Victor 100 Series

Technical Overview of the Uniweld 4-W-1 Welding Tip

The Uniweld 4-W-1 is a high-performance welding tip engineered to meet the rigorous demands of industrial metal fabrication and maintenance. Designed as a direct replacement for the Victor W-1 series, this nozzle is fully compatible with Victor 100 series torch handles, including the popular 100C and 100FC models. The tip is manufactured from a specialized copper alloy, selected for its exceptional thermal conductivity and resistance to oxidation at high temperatures. This material choice ensures that the tip maintains its structural integrity even during prolonged welding cycles, reducing the risk of tip deformation and extending the service life of the consumable.

The internal geometry of the 4-W-1 is precision-machined to produce a stable, long-cone flame characteristic of high-quality oxy-acetylene welding. The swaged tip design optimizes gas flow velocity, preventing turbulence that can lead to flame instability or flashbacks. With a size designation of #4, this tip is calibrated to weld mild steel thicknesses up to 1/4 inch (approximately 6.4mm). This capacity makes it an essential tool for medium-duty fabrication tasks, structural repairs, and pipe welding applications where deep penetration and bead control are critical.

Installation is secure and leak-free thanks to the double O-ring seating mechanism, which provides a tight seal against the torch mixer. This design minimizes the potential for gas leakage, enhancing operator safety and ensuring consistent gas mixing ratios. The tip is specifically tuned for use with oxygen and acetylene fuel gas, delivering the high BTU output required for efficient fusion welding. Maintenance personnel and fabricators can rely on the Uniweld 4-W-1 for consistent performance, dimensional accuracy, and seamless integration with existing Victor-style oxy-fuel equipment setups.