639684 - ESAB Size 4 Welding Nozzle for W-Series Torches

Precision Oxy-Acetylene Welding Nozzle

The ESAB #4A Welding Tip (SKU: 639684) is a high-performance consumable designed for professional oxy-fuel welding and brazing operations. Engineered to fit industry-standard heavy-duty torch handles such as the W-250, W-300, and W-400 series, this nozzle ensures seamless compatibility and reliable performance in industrial environments. The tip is manufactured from high-grade copper alloy, which provides excellent thermal conductivity, reducing the risk of overheating and extending the lifespan of the consumable.

This Size #4 nozzle features a swaged design with a highly polished interior bore. This construction minimizes gas turbulence, resulting in a long, stable, and focused flame cone essential for high-quality welds. It is specifically calibrated for oxy-acetylene gas mixtures, offering the precise heat control needed for welding mild steel plates, pipes, and structural components. The tip's geometry is optimized to resist flashback, enhancing operator safety during prolonged use.

Ideally suited for maintenance, repair, and fabrication shops, this nozzle allows for the welding of material thicknesses typically ranging from 1/8 inch to 3/16 inch (approx. 3.2mm to 4.8mm), depending on operator technique and joint configuration. Its robust construction withstands the rigors of daily industrial use, making it a cost-effective solution for maintaining the efficiency of your oxy-fuel equipment.