CS42037 - Victor Purox 4203-7 Acetylene Cutting Tip Size 7

Technical Overview of the Victor Purox 4203-7

The Victor Purox 4203-7 (SKU: CS42037) is a premium-grade cutting tip engineered for industrial oxy-acetylene applications. Part of the renowned 4203 series, this consumable is designed to interface seamlessly with Purox-style hand cutting torches and machine torches, including the Type E and C-205 models. The tip features a Size 7 orifice configuration, which is calibrated to deliver an optimal oxygen stream for cutting mild steel plate with a thickness of approximately 2 inches (50 mm).

Constructed from a high-conductivity copper alloy, the 4203-7 utilizes a one-piece design. This metallurgical choice is critical for thermal management; the copper body efficiently conducts heat away from the tip face, significantly reducing the risk of overheating and extending the service life of the nozzle in high-duty-cycle environments. The internal geometry is swaged to ensure laminar gas flow, minimizing turbulence in the preheat and cutting oxygen channels. This results in a stable, consistent preheat flame and a coherent cutting stream that maintains its integrity over the cut distance.

Operational parameters for the Size 7 tip typically require an oxygen pressure range of 40-50 PSIG and an acetylene pressure of 5-10 PSIG, depending on the specific torch length and hose configuration. Operators should ensure that the preheat flames are neutral to slightly oxidizing for optimal heat transfer. The tip seats are precision-machined to ensure a leak-proof seal within the torch head, preventing dangerous gas mixing within the torch body. Regular maintenance, including the use of appropriate tip cleaners, is recommended to maintain the circularity of the preheat holes and the cutting oxygen bore, ensuring the tip continues to perform to factory specifications.

This component is an essential stock item for MRO operations involving structural steel fabrication, scrap processing, and heavy equipment repair where Purox equipment is the standard. Its robust design withstands the harsh conditions of field work while delivering the precision required for shop fabrication.