I can confirm that Mario's method is an excellent one.
In addition, if you want to restrain the diameter, use a glass
jar into you push the elbow in after hot air heating it. Don't use
a flame, it may damage the PVC and/or give a poor result. You also
may turn a piece of metal tube at the required dimension. Keep in
mind that in this case the metal tube shall also be heated
otherwise it will be difficult to restrain a plastic tube being
cooled by the cold tube during the operation.
I used these two methods a lot of times and it always worked. If
the result isn't what you wanted, heat it again and it will almost
recover its original shape :-)
It also works well on nylon tubing. I purchased 3/8" tube for my
compressed air distribution and it happened to be 10mm. My
fittings were 3/8". Instead of wasting time with a new order, I
restrained the nylon tube using the second method. No leak @ 8
bars for at least12 years.
On 27.10.24 02:38, mario mohl via
groups.io wrote:
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Better still. Turn a wood dowel to the desired ID
and use it to expand the PVC after slightly heating it
