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O2 Barrier Heat Pex

Big Ed_4
Big Ed_4 Member Posts: 2,831
Question ? In heat Pex is the barrier different between brands of pipe ?

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  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 8,167
    edited April 2023
    Of course not. Each brand has their own barrier design and it is always better than the competition. Just ask them ... they will be glad to tell you!
    ...even if it isn't

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • dko
    dko Member Posts: 644

    Technically there are different grades of EVOH, but not something you can visually distinguish between the brands.

    The most you will know from submittals is that they meet specification DIN 4726 for oxygen tightness. I have yet to come across one that claims to be "better than others" if even necessary..

    Some brands have an additional layer on top of the EVOH.

    For the most part, it's the same- get whatever is most accessible to you as long as it's by a known reputable company.

    Then there's Pex-Al-Pex which features an aluminum tube core as the oxygen barrier.