GPN-5 - Victor Style GPN-5 Propane Cutting Tip Size 5

High-Performance GPN-5 Cutting Tip for Alternative Fuels

The Powerweld GPN-5 is a specialized cutting tip designed for use with alternative fuel gases such as Propane and Natural Gas. Engineered as a direct replacement for Victor-style GPN series tips, this consumable is compatible with Victor 300 Series cutting attachments and torches. The tip features a two-piece construction, consisting of a brass inner member with splined preheat passages and a heavy-duty copper outer shell. This design is critical for alternative fuels, which burn at a lower velocity than acetylene, requiring a recessed flame focus to maintain stability and heat transfer efficiency.

With a Size 5 designation, this tip is calibrated for heavy-duty cutting applications. It is rated to cut mild steel ranging from 4 inches to 5 inches (approximately 100mm to 127mm) in thickness. The operational parameters are specific: it requires a cutting oxygen pressure of 50-55 PSIG and a fuel gas pressure of 8-12 PSIG. The cutting oxygen flow rate is substantial, ranging from 330 to 360 SCFH, ensuring a clean, high-velocity stream to oxidize and remove molten metal effectively. The preheat oxygen flow is rated between 23 and 108 SCFH, providing the necessary thermal energy to bring the base metal to ignition temperature.

The GPN-5 operates at a travel speed of 6 to 9 inches per minute, depending on the specific thickness and condition of the steel. Its standard pressure design ensures consistent performance in industrial environments. The two-piece assembly allows for easier cleaning and maintenance compared to single-piece acetylene tips, as the outer shell can be removed to access the inner splines. This tip is an essential component for fabricators and scrap processors utilizing propane or natural gas for their cost-effectiveness and availability.