Expand PEX A twice?

[Vdawg]

I'm sorry if this has been asked here in the past, but I did look and couldn't find it in a search. I've read you can heat PEX A to remove the sleeve and ultimately release a fitting for reuse. But even if you do this successfully, can that end of the PEX pipe be re-expanded or must it be cut back anyway?

I can see doing this to re-use the fitting (my understanding is only brass fittings should be reused this way), but I'm wondering if the end of the pipe itself can still be reused (re-expanded) to take on another fitting.

 

[John Gayewski]

It can.

 

[Sponsor]

 

[Breplum]

Uponor instructions say for reuse of brass fitting, to cut back 2" to 3" minimum up to 1" pipe. 3" minimum cut back for 1.25 to 2" pipe.

 

[JohnCT]

I've never done it but never had to either.. Ever see the videos where PEX A kinks are "repaired" with a heat gun? The pipe turns transparent and gets flexible like silicone rubber. I think if I were going to do a second expansion, I'd heat the pipe clear, let it cool, then expand.

John

 

[Reach4]

When I have done something approximating that, I had to also expand the ring to get the ring onto the pex. Then when the combo shrank down, it had a tiny leak. I put a hose clamp around the expansion ring, which stopped the leak. Some time later I removed the hose clamp, and no leak. My some time later was weeks later, but maybe it did not take that long.

It was expedient, and not the normal way.