How to fix out of round tube?

SWBC · Jan 6, 2013

Hi all,

I am wondering if anyone has any suggestions to fix an out-of-round SS tubing coil? I do not need to fix the whole coil - just the ends so I can put a fitting on it.

I have heard someone suggest forcing a ball bearing through the inside of the coil... but I don't think that will work on a long coil - I wouldn't have anyway to push it through.
Any suggestions would be appreciated!

milesvdustin · Jan 6, 2013

Maybe you could try a swage tool.

Like this guy here
http://www.harborfreight.com/6-in-1-swaging-tool-66750.html

Just tap it in until your opening is round again. If your tubing needed depth straightened out i would swage the opening round then hammer a piece of hardwood dowel in to make it round.

iaefebs · Jan 6, 2013

Can you use a tubing cutter and cut the end off?

brewingmeister · Jan 6, 2013

needle nose pliers. don't grab with them, just jam them in there and twist. yep, jam them in there and twist.

heapyjeepy · Jan 6, 2013

Some kind of tapered alignment pin like the swage tool might work. Heat it up with a propane torch first, it'l make life a bit easier. There might not be a quick way to do it, so take your time.

SWBC · Jan 6, 2013

milesvdustin said:
Maybe you could try a swage tool.

Like this guy here
http://www.harborfreight.com/6-in-1-swaging-tool-66750.html

Just tap it in until your opening is round again. If your tubing needed depth straightened out i would swage the opening round then hammer a piece of hardwood dowel in to make it round.

I think this will work well! Thanks for the idea and the link... I frequently stop at HFT so I'll try one of these guys!

iaefebs: The whole coil is out of round - so if I cut it, i'll still have the same problem...

mikescooling · Jan 7, 2013

Take a cresent wrench or channel-locks and round the out side. put it on the floor steping on the cut end, and unroll it, then cut the end off.

How to fix out of round tube?

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