Pex Clamp/Ring Question

[dieselscout80]

Is there a Pex clamp ring that separates so you can put it on an already installed pipe like a regular hose clamp?

I messed up one crimp and there’s not much pipe left to cut off to redo it with a new crimp ring.

 

[Oaktree]

When I was re-plumbing my house a few years ago I screwed up a couple crimps in the process. Was able to (gently) cut the old ring, pry it off, remove the pipe from the fitting and put on a new crimp ring. Dunno how well that would have worked if it'd been on there a while.
I suppose you could get away with a hose clamp, never tried it on pex, but I did have a copper pipe burst a few years earlier and did a temporary repair with some automotive heater hose & hose clamps.

 

[dieselscout80]

When I was re-plumbing my house a few years ago I screwed up a couple crimps in the process. Was able to (gently) cut the old ring, pry it off, remove the pipe from the fitting and put on a new crimp ring. Dunno how well that would have worked if it'd been on there a while.
I suppose you could get away with a hose clamp, never tried it on pex, but I did have a copper pipe burst a few years earlier and did a temporary repair with some automotive heater hose & hose clamps.

View attachment 4295405

Thanks

However, I’m really wanting a Pex clamp but one that can be installed on the installed line.

 

[4570Man]

Why can’t you take the pipe apart if you’re cutting the old crimp anyway?

 

[dieselscout80]

I haven’t been able to pull the fitting out without having to cut the pipe off it.

 

[bcp]

I took one apart like that by gently heating it.

Bruce

 

[34Willys]

This style you can straighten the small lock tab and unroll it.
Might be a bit tough to get it back together, but I have done it in the past.
These style clamps are popular om European vehicles.

Patrick

 

[kenmac]

I not aware of anything like you're asking for. You can carefully cut the current ring off and take the joint apart and re apply a crimp ring, or cut out a section and splice in another section

 

[dieselscout80]

The mangled crimp is holding and NOT leaking so I am going to let it ride for now.

If I have to replace it I will cut it out and do a short extension of the cpvc it connects to.

Thanks for the advice and suggestions!

 

[SPYDERLK]

The mangled crimp is holding and NOT leaking so I am going to let it ride for now.

If I have to replace it I will cut it out and do a short extension of the cpvc it connects to.

Thanks for the advice and suggestions!

You can use a 5/16 width hose clamp. The problem is the high pressure point discontinuity under the worm gear tightener. This must be blended in some way to get even, leakproof clamping. I have good luck using ~ 10 to 20 wraps of 1/2" teflon tape under the clamp. - - Teflon has an interesting "cold flow" characteristic that favors flow away from extreme pressure locations. It self adjusts toward an even clamp force. Tighten the clamp gently repeatedly for an hour or so til it stabilizes.