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Old 11-13-2012, 08:26 PM   #1
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Pex Crimp Ring Question

I am in the process of repiping the house with pex. When I did the one inch and 3/4 inch crimps it came out perfect with the go/no go gauge. I did a few 1/2 inch crimps and the go part of the gauge will slide in easy one way but if I turn the gauge slightly it gets hung up. It looks like maybe the gauge is getting hung up where the seam is on the ring, but I can't be sure. Is this normal for the gauge to not slide in one way but ok the other way? I dont want to proceed until I know for sure. Why would it do it only on the 1/2 inch and not the bigger sizes? For the record it is the Sharkbite pex system from HD including the tool. I will buy another tool if I have to.


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Old 11-14-2012, 07:46 AM   #2
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I dont have an answer but want to see what answers you get.


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Old 11-14-2012, 09:04 AM   #3
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Did you rotate the tool and try to crimp from a different spot?
TBH- When I was first handed crimpers, it was months before I saw a gauge. I was showed how to place the ring and away I went.... You may be overly concerned with the small ridge
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sfj (11-18-2012)
Old 11-14-2012, 03:08 PM   #4
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We just replumbed with Pex crimp rings. All our 1", 3/4", and 1/2" crimps left a raised "burr" that the gauge won't go over. We used the Apollo tool from Lowes, so apparently your HD tool is superior if it only happens on 1/2". Or your 1/2" die may just be a little out of alignment.

I wouldn't worry, just rotate the gauge until you are over the smooth portions.

For piece of mind though you might pressure test the system with air several PSI higher than your typical water pressure. If any fittings blow off you'll know they weren't done right.
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Old 11-18-2012, 02:53 PM   #5
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Thanks for the replies! I think I was just being overly concerned and everything would have probably been OK......But I went ahead and bought a new crimpoer for 163 dollars at local plumbing supply store. It is the Yellow handled Viega one that is good for getting in tight spaces. The crimps it makes are better but still not perfect. I guess perfect is not going to happen. The new tool is easier to use and superior to the HD Sharbite tool. I figure I am saving about 5,000 dollars by doing the job myself, so I may as well buy a good crimping tool. Thanks again!
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crimp rings , pex

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