CO2 pipe freezing clamp - GIF

CO2 pipe freezing clamp.

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Previously:

https://www.homemadetools.net/forum/...427#post131603
https://www.homemadetools.net/forum/...431#post122276
https://www.homemadetools.net/forum/...058#post125592
https://www.homemadetools.net/forum/...505#post135848
https://www.homemadetools.net/forum/...512#post147198
https://www.homemadetools.net/forum/...371#post166009

Amazing. Why would I want to freeze a pipe? Is it to create a plug inside the pipe?

Quote:

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Originally Posted by nova_robotics

Amazing. Why would I want to freeze a pipe? Is it to create a plug inside the pipe?

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Absolutely, we used something similar back in the 80's to freeze plugs in the pipes. This is used when you don't want to or can't turn off the water. Freeze it in a couple of places, cut the pipe, and add in a valve, T or whatever is needed. Once done, allow it to thaw out and walk away.

Absolutely correct. Often such shutoffs are performed for repairs, especially where draining is prolonged, or done to eliminate backflow issue, when line is opened.

Is there not a possibility of cracking the pipe when freezing it in such a manner?