16K11 - ESAB Purox 4202 Series Size 4 Acetylene Cutting Nozzle

Precision Engineering in Oxy-Fuel Cutting

The ESAB Purox 4202 Series Acetylene Cutting Tip (Size 4) represents a standard of excellence in industrial oxy-fuel applications. Engineered specifically for use with acetylene gas, this nozzle is designed to handle substantial material thicknesses ranging from 2 to 4 inches. The internal geometry of the tip is crafted to maintain a stable and efficient flame characteristic, essential for high-quality cuts in professional environments. With a physical footprint of 3.55 x 0.9 x 0.9 inches, it integrates seamlessly with compatible Purox torch handles, ensuring a secure seal and optimal gas flow dynamics.

Technically, the 4202 Series Size 4 tip operates within a specific pressure window to maximize efficiency and safety. It requires a cutting oxygen pressure of 40 to 75 PSIG and an acetylene pressure of 6 to 10 PSIG. At these settings, the nozzle achieves a cutting speed of 8 to 12 inches per minute, depending on the specific alloy and surface conditions. The gas consumption rates are engineered for economy without sacrificing performance, utilizing 195-325 CFH of total oxygen and 18-25 CFH of acetylene. This balance ensures that the thermal energy is concentrated effectively in the kerf, which averages between 0.095 and 0.110 inches in width.

One of the defining features of this nozzle is its medium preheat capability, facilitated by six precision-drilled preheat holes. This configuration provides sufficient thermal saturation for beveling operations, where the flame must maintain ignition and heat transfer at oblique angles. The one-piece copper construction not only aids in rapid heat dissipation—preventing tip overheating—but also simplifies the internal gas paths for a laminar flow. This results in a cleaner cut face with reduced slag accumulation, minimizing post-cut machining or grinding requirements.

Manufactured in Mexico to ESAB's rigorous quality standards, the 16K11 (Size 4) tip is suitable for both general-purpose hand cutting and machine cutting setups. Its robust design withstands the thermal cycling inherent in heavy industrial use, making it a reliable component for fabrication shops, shipyards, and structural steel processing facilities requiring consistent 2-4 inch severance capabilities.