66Z62 - Oxweld 1431-200 Acetylene Cutting Nozzle

Technical Overview of the Oxweld 1431 Series Size 200 Nozzle

The ESAB Oxweld 1431 Series Cutting Tip (SKU: 66Z62) is a specialized consumable designed for heavy-industrial oxy-acetylene cutting applications. Engineered to meet the rigorous standards of the Oxweld product line, this nozzle features a Size 200 orifice, which is calibrated for severing carbon steel plates ranging from 8 inches to 12 inches (approximately 200mm to 300mm) in thickness. This capability places the 66Z62 in the heavy-duty category, suitable for foundry work, heavy scrapping, and structural demolition where standard tips would fail to maintain a cutting stream through the material.

Technically, the 1431 series utilizes a one-piece copper construction. Unlike two-piece tips used for alternative fuels like propane, the one-piece design is essential for acetylene to ensure proper heat conduction and flame stability. The tip is swaged from high-quality tellurium copper or a similar alloy, which provides excellent resistance to heat deformation and spatter adhesion. The internal geometry of the tip is precision-drilled and swaged to optimize the velocity of the cutting oxygen stream while maintaining a stable ring of preheat flames. This ensures that the preheat flame is sufficient to bring heavy steel to ignition temperature rapidly, while the cutting stream remains coherent over the long distance required to penetrate 12-inch thick material.

The seating mechanism of the 66Z62 is designed to mate perfectly with Oxweld C-series torches (such as the C-31, C-32, and various machine torches). The metal-to-metal seal relies on precise machining tolerances to prevent gas leakage within the torch head, which is critical for safety and performance. Users must ensure their equipment is rated for the high gas flow volumes required by a Size 200 tip to prevent starvation of the flame during operation.