598721 - ESAB PSF Series Gas Nozzle 16mm Conical (Pack of 2)

Achieve Cleaner Welds with ESAB PSF Nozzles

Every welder knows that the front-end consumables of a MIG torch are the first line of defense against weld defects. The ESAB 598721 Gas Nozzle is designed to keep your PSF torch running at peak performance. Whether you are welding mild steel, stainless, or aluminum, having a clean, dimensionally accurate nozzle is the key to maintaining a consistent shielding gas envelope. This 16mm conical nozzle is the workhorse of the ESAB PSF line, fitting popular torches like the PSF 305 and PSF 405 found in shops across the world.

Why choose this specific nozzle? The conical shape allows you to see the weld pool clearly, which is vital for controlling your travel speed and puddle manipulation. It also helps you get into tighter corners that a cylindrical nozzle might block. The heavy-duty copper construction pulls heat away from the front end, helping the nozzle last longer even when you are running hot spray transfer settings. Plus, the smooth surface finish helps resist spatter buildup; a quick tap or a dip in anti-spatter gel is usually all it takes to keep it clean.

This package comes with two nozzles, so you always have a spare in your toolbox. Replacing your nozzle is one of the cheapest ways to fix gas coverage issues. If you notice your old nozzle is out of round, dented, or heavily built up with spatter that won't scrape off, it's time to swap it out. A fresh nozzle restores that smooth, hissing laminar flow of gas that protects your molten metal. Don't let a worn-out $10 part ruin a critical weld—stick with genuine ESAB replacements for your PSF gun.

Installation and Care

Installing the 598721 is simple: just slide the old nozzle off and push the new one on until it seats firmly. Ensure your contact tip is centered within the nozzle bore. To extend the life of these nozzles, inspect them regularly for spatter bridges that could short out against the contact tip, and use nozzle dip or spray to keep the copper surface slick.