W-4 - Victor Style W-4 Heavy Duty Welding Tip for 300 Series Handles

Technical Overview of the W-4 Victor Style Welding Tip

The W-4 Welding Tip is a high-performance replacement component designed for compatibility with Victor 300 Series torch handles. Engineered for heavy-duty industrial applications, this tip utilizes a single-piece copper construction which provides excellent thermal conductivity, reducing the risk of tip overheating during prolonged use. The W-series design is specifically calibrated for Oxy-Acetylene gas mixtures, delivering a long, concentrated cone flame that is essential for deep penetration welding and localized heating.

This specific Size 4 tip features a precision-machined orifice capable of handling substantial gas flow rates. It is rated for welding mild steel thicknesses ranging from approximately 1/2 inch (12.7mm) to 3/4 inch (19mm). The tip connects securely to the torch mixer assembly (typically a UM-series mixer or equivalent for 300 series handles) using a threaded coupling nut, while double O-rings ensure a leak-proof seal at the seating surface. Proper gas pressure settings are critical for optimal performance; typically, this tip operates efficiently with oxygen pressures between 20-30 PSIG and acetylene pressures between 5-8 PSIG, depending on the specific mixer and hose length employed.

In MRO and fabrication environments, the W-4 serves as a vital consumable for maintenance teams requiring the ability to repair heavy structural components, pipe, and castings. Its robust design ensures longevity and resistance to spatter adhesion, making it a reliable choice for demanding welding, brazing, and pre-heating tasks.