0558005031 - ESAB Purox 1567-1 MAPP/Propylene Cutting Tip Size 1

Technical Overview of the ESAB 1567-1 MAPP/FG-2 Nozzle

The ESAB 1567-1 (Part Number 0558005031) is a specialized two-piece cutting nozzle engineered for use with MAPP gas, Propylene, and other FG-2 class fuel gases. Unlike acetylene tips, which are typically one-piece, this nozzle utilizes a two-piece construction consisting of a brass or copper inner member and a copper outer shell. This design is critical for alternate fuels, which have different burning velocities and heat release profiles compared to acetylene. The inner member features precision-machined splines that create the preheat orifices, ensuring a uniform distribution of the gas mixture for a stable, high-temperature preheat flame.

The nozzle is designated as Size 1, which generally correlates to a cutting capacity of approximately 3/4 inch (19mm) of mild steel, depending on oxygen pressure and torch travel speed. The recess created by the outer sleeve around the inner tip serves to anchor the flame, preventing it from blowing off the tip face even at higher pressures—a common challenge with slower-burning alternate fuels. The heavy-wall copper outer sheath provides excellent thermal conductivity, rapidly dissipating heat to prevent the tip from overheating during prolonged cuts or piercing operations.

Designed for compatibility with ESAB's legacy Purox and Oxweld torch lines, the 1567 series nozzles maintain tight tolerances to ensure a leak-free seat within the torch head. The separation of the preheat and cutting oxygen channels is maintained until the gases exit the nozzle, maximizing safety and efficiency. Industrial MRO professionals will appreciate the durability of the seating surfaces and the consistent flame characteristics that reduce the need for constant torch adjustment.