29N21 - ESAB 29N21 Converting Nozzle for TIG Torches

Technical Overview of the ESAB 29N21

The ESAB 29N21 is a specialized converting nozzle designed for professional TIG welding applications. In the precision-demanding world of GTAW (Gas Tungsten Arc Welding), having the right front-end torch configuration is critical for accessing tight joints and maintaining proper gas coverage. This component serves as an adapter, allowing specific ESAB Heliarc torch bodies to utilize a broader range of nozzles or cup sizes that may not be native to the standard torch setup.

Manufactured to ESAB's rigorous industrial standards, this nozzle is machined from high-quality brass alloy. This material choice ensures excellent thermal conductivity, preventing the part from overheating during prolonged welding cycles, while also maintaining structural integrity against the mechanical stresses of daily shop use. The threads are precision-cut to ensure a tight, leak-proof seal, which is vital for preventing atmospheric contamination of the weld pool. A poor seal at the converting point can lead to turbulence in the shielding gas flow, resulting in porosity or oxidation; the 29N21 is engineered to eliminate this risk.

This part is essential for fabricators who need to switch between different consumable configurations—such as moving from standard collet bodies to gas lenses or changing cup orifice sizes—without swapping the entire torch cable assembly. It effectively bridges the gap between the torch head and the consumable stack. Whether you are working on critical aerospace components or general industrial fabrication, using genuine ESAB parts like the 29N21 ensures that your equipment operates at its rated duty cycle and performance level.

Installation is straightforward, threading directly onto the compatible torch head. It is designed to resist spatter adhesion and wear, providing a long service life. For maintenance, simply inspect the threads and seating surfaces regularly for damage or debris buildup. This converting nozzle is a key inventory item for shops maintaining a fleet of ESAB TIG torches.