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Hanging pex pipe to main water pipe

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Commercial building, can I ? & How can I hang 1\2" or 3\4" pex pipe to existing 1" water pipe 20' over to the wall, in a open room with no curling, just metal roof joist. Looking for the best way to hang pex to alongside existing water supply pipe horazonally to the wall ?

Comments

  • trickynicky
    trickynicky Member Posts: 5
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    Correction no curling, not curling
  • trickynicky
    trickynicky Member Posts: 5
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    Cieling
  • trickynicky
    trickynicky Member Posts: 5
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    Existing water supply pipe is on metal hanger from the roof joist, is there code for or can pex be hung from or strapped to existing water pipe to the wall.
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    You're probably better off sticking it inside a conduit. Pex is going to want to expand/contract a lot.

    There was an error rendering this rich post.

  • ChrisJ
    ChrisJ Member Posts: 15,785
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    You're probably better off sticking it inside a conduit. Pex is going to want to expand/contract a lot.

    Are you allowed to run pex in a conduit?
    I know Uponor sells metal supports that are basically a cupped metal tray to support it. But it's mostly open.

    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,631
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    With the lack of hangers pex becomes more work than copper.

    Same thing with electrical. Pvc conduit supports are supposed to be 3' apart. EMT or Ridgid conduit is 10'. Most of the work is in the hangers
    mattmia2
  • ChrisJ
    ChrisJ Member Posts: 15,785
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    With the lack of hangers pex becomes more work than copper.

    Same thing with electrical. Pvc conduit supports are supposed to be 3' apart. EMT or Ridgid conduit is 10'. Most of the work is in the hangers

    Uponor's supports make a big difference.



    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • mattmia2
    mattmia2 Member Posts: 9,749
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    Doesn't pex also require protection from UV?
  • trickynicky
    trickynicky Member Posts: 5
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    Thank you, I have only used pex in residential and can see the problem in large spans using pex in a commercial building, 32" seems a bit much, so I think copper is a washer choice in this situation. Thank you for the replies.
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    ChrisJ said:

    You're probably better off sticking it inside a conduit. Pex is going to want to expand/contract a lot.

    Are you allowed to run pex in a conduit?
    I know Uponor sells metal supports that are basically a cupped metal tray to support it. But it's mostly open.

    Why not? UV protection for one.
    On the underground stuff it's run in a conduit and engulfed in an insulation.

    There was an error rendering this rich post.

  • ChrisJ
    ChrisJ Member Posts: 15,785
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    > @STEVEusaPA said:
    > (Quote)
    > Why not? UV protection for one.
    > On the underground stuff it's run in a conduit and engulfed in an insulation.
    > (Image)

    I have no idea, that's why I asked.

    ;)
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment