23612590 - ESAB PSF Connection Tube with O-Ring

Restore Your Torch's Performance

Is your ESAB PSF MIG gun sputtering, leaking gas, or overheating at the neck? The problem might be buried inside the handle. The ESAB 23612590 Connection Tube with O-Ring is the genuine repair part you need to get your trusty PSF torch back in fighting shape. Over time, the threads on your connection tube can strip, or the sealing surfaces can wear down, leading to frustrating gas leaks that ruin your welds with porosity. Even worse, a poor connection here can cause resistance buildup, making your handle get uncomfortably hot during long welds.

This replacement kit takes the guesswork out of the repair. It includes the brass connection tube itself, machined perfectly to fit your ESAB PSF series gun (like the PSF 405 or 505), along with the crucial O-ring seal. The O-ring is often the culprit when you hear that faint hissing sound coming from the handle area, and replacing the entire tube assembly ensures you have a fresh, clean surface for that seal to seat against. It’s a quick fix that can save you from buying a whole new gun.

Why Choose Genuine ESAB Parts?

When you are in the middle of a job, you don't have time for parts that "almost" fit. Aftermarket knock-offs often have sloppy threads or inferior O-rings that degrade quickly under heat. This genuine ESAB part is made from high-quality brass that conducts welding current efficiently and stands up to the heat of heavy-duty fabrication. Swapping this part out is part of good preventative maintenance. If you are tearing down your gun for a liner change or a deep clean, check your connection tube. If it looks beat up or corroded, swap it out with the 23612590 to ensure your shielding gas gets to the puddle where it belongs, not leaking out into your glove.