[gear junkie]

Who uses them?

 

[uaplumber]

Never used them. Most everything I do is residential and the lines are never straight anyways.

 

[Bill]

No need if you are refering to the "U" made in the pipe. The pex has enough give in it already.

 

[plumbingpaul]

Pex expansion joints

Every pex pipe I know of dosent need an expansion joint the pipe has enough give to expand without using an expansion joint. Plus a expansion tank which is code out west would take care of any expansion anyway.

 

[Double-A]

For regular pex, you shouldn't pull tight when strapping anyway. It will move quite a bit with temperature.

When you strap it, just let it relax between clips, per manufacturers instructs.

 

[Ron]

Don't need them, I have never needed them.

 

[Bill]

I install them when using copper like say every 30 feet or so depending. But never pex.