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Thread: What tool to use to crimp PB fitting? What color crimp rings do I use?

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  1. #1
    DIY Member CountryBumkin's Avatar
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    Default What tool to use to crimp PB fitting? What color crimp rings do I use?

    I need to make a connection from Polybutylen (PB) to PEX (Wirsbo). I bought the "PB to PEX fitting" (wirsbro brand) but it doesn't come with the crimp ring for the PB side. Oh well, a trip to HD.

    I found the "PB to PEX fittings" at HD today. Not the same brand PEX I 'm using. Also HD's has a black crimp ring and a copper crimp ring but it doesn't say which ring is for the PB and which it for the PEX. I bought two fittings just to get the crimp rings. Now how do I crimp the rings?

    Next to the fitting they have a "pocket crimper" with "go, no-go" gauge. But it says on the package "for PEX", and the PEX they sell at HD is not Wirsbro.

    Will this crimper work on the PB crimp ring?

    Is the go, no-go guage meant for the PB ring or the PEX ring, or both?

    What kind of crimpers do the pros use? Thanks.

  2. #2
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    Default

    1 - The rings are the same, it does not matter which you use
    2 - The same tool crimps pex or poly
    3 - Uponor/Wirsbo recommends that you do not crimp their
    product and will not cover any warranty should it fail.
    4 - Uponor/Wirsbo uses an expansion tool.

  3. #3
    DIY Member CountryBumkin's Avatar
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    Default

    Thanks Peter.
    Just to be clear. I have the Wirsbo expander tool for the connection ot the PEX pipe. But the connection to the PB side of the fitting requires a crimp. That is my problem. I think you answered my question.

    ProPEX Brass to PB Coupling, 1/2" PEX x 1/2" PB (This pic is from the PexSupply website but it is not correct. The PB side has many rows of small ridges whereas the PEX side of the fitting looks like the picture below)
    Attached Images Attached Images  
    Last edited by CountryBumkin; 11-11-2009 at 03:57 AM. Reason: add more info

  4. #4
    Master Plumber master plumber mark's Avatar
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    Talking USE the ......SHARK BITE..... luke...

    dont fool around that way....

    all you got to do is put a shark bite coupling onto the PB junk and move on...

    that is the safest....best ...... way ,,

    we have gotten out of some god awful nasty things thanks to shark bite fittings...



    The gray end of the Sharbite if for PB

  5. #5
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    Quote Originally Posted by master plumber mark View Post
    dont fool around that way....

    all you got to do is put a shark bite coupling onto the PB junk and move on...

    that is the safest....best ...... way ,,

    we have gotten out of some god awful nasty things thanks to shark bite fittings...
    Good old snap click plumbing!!!

    John

  6. #6
    Moderator & Master Plumber hj's Avatar
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    Default crimp ring

    Here, the PB ring is black, but in your case, it is whichever color the manufacturer wants to make it. Look at the other fittings, or PEX rings to see what color they are. The PB ring will be the one that is different. You use the same crimp tool on the PB ring. ANd the same go/no go gauge.

  7. #7
    In the Trades dwindle's Avatar
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    Default

    I've seen sharks fail over time in at least two occasions.
    Something seems to corrode the metal teeth.

    Professionally I never use them.

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