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ASTM & DIN #'s

Tony_23 Member Posts: 1,033
We're starting from scratch on the repipe, just reusing the boiler, circs and manifolds.

It'll be much cleaner when we're done....


  • Tony_23
    Tony_23 Member Posts: 1,033
    How to tell the difference

    Went on a call today (actually a cry for help) and found 3 different brands of Pex. One was marked that it was barrier tubing (Zurn), one was marked "Waterpex" by Watts, and one did not have a brand or designation other than it was approved for potable water.

    The Zurn was in concrete. The Watts was screwed up stapleup that's going to go anyway.

    The unknown is orange in color. Is in concrete (hoping it's barrier!). Has the following ASTM #'s F876/F877/F1807 and also has DIN4726 Oxygen Permeablity stamped on it. Also SDR9. Only 900' of it, but that's 900' too many if it's non-barrier.

    When my camera batteries get recharged I'll post some pics of a braincramp that just won't quit. The "installer" has since taken a job giving advice at the HD :)


  • bill nye_3
    bill nye_3 Member Posts: 307

    the orange pipe is probably Stadler pex, now Vega. It is most likely barrier tubing.

    The DIN is the German standard, Deutsches Institut für Normung. (German Institute for Standardization)

    The ASTM is the American Society for Testing and Materials.
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
    Watts hoppening...

    If its real shiny, it's Watt Heating PEX, and I'm pretty sure it has a real barrier.

    It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.
  • Tony_23
    Tony_23 Member Posts: 1,033

    Yup, the unknown Pex is shiny orange. The other Pex that I know is Watts WaterPex is dull.
  • scrook_2
    scrook_2 Member Posts: 610
    ASTM & DIN forPEX

    ASTM F876-06 Standard Specification for Crosslinked Polyethylene (PEX) Tubing

    ASTM F877-07 Standard Specification for Crosslinked Polyethylene (PEX) Plastic Hot- and Cold-Water Distribution Systems

    ASTM F1807-07a Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-linked Polyethylene (PEX) Tubing

    DIN4726 Warm Water Floor Heating Systems and Radiator Pipe Connecting - Piping of Plastic Materials

    Allegedly: This standard says that no more than 0.1 milligrams of oxygen will enter a system per liter of water in the system per day. (If so, then looks like you're good)
  • Tony_23
    Tony_23 Member Posts: 1,033
    Thanks Guys

    Looks like he caught a break there.

    Here's some pics of the boiler and near-boiler piping.
  • Mitch_4
    Mitch_4 Member Posts: 955
    vellly velly interestink

    Nice..have fun. Is that boiler supposed to be a 2 pipe? gods I love that piping. I can't even begin to think..brain cramp is right.

    Have you considered just cutting it all out and restart? might be faster, easier and cheaper...
  • Mitch_4
    Mitch_4 Member Posts: 955
    please post

    the after pics Tony.

    Have a great holiday
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