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Old Wirsbo Maifold - retire line and cap

Werner
Werner Member Posts: 2
in Radiant Heating
I need to retire one line in my old Wirsbo manifold* (See attached picture). It seems simple to just cap the respective part with a brass cap (what is that - 1"?). But what should I do about the bottom portion, where the valve is? take the valve out? How?



thanks

Comments

  • Werner
    Werner Member Posts: 2
    footnote

    * For those who are interested, this is a snow melt that will go away because we redo the roof
  • JeffM
    JeffM Member Posts: 182
    leave it

    You don't need to remove the valve from the other side of the header, just leave it there (presuming it's not leaking). It's not hurting anything, and you're more likely to cause leaks by trying to pull it and seal the hole.
  • Zman
    Zman Member Posts: 7,610
    Manifold

    As far as the zone valve goes, you can either leave it or unscrew and remove the head. You don't want to remove the valve itself.

    The tubing is going into a compression fitting. A pipe cap will not match up. You might be better off capping the PEX.

    Carl
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    edited March 2014
    They make a cap for this...

    or at least they MADE a cap for this. I think it was a QS32 cap. Not certain of the part number, but Uponor should be able to tell you and then you can find one through a whole saler.



    EDIT: Went on line and found it at PEX Supply



    http://www.pexsupply.com/Wirsbo-Uponor-A2080020-Loop-End-Cap-3725000-p



    $5.15 each. It is an R20 thread, not standard pipe size. Make sure you get it with the gasket.



    ME

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  • RobG
    RobG Member Posts: 1,850
    Is there?

    Are snowmelt systems used for roofs? I can see where it could come in handy in some areas where there is heavy snowfall, however I have never heard it discussed here.



    Rob
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Yep...

    I did a design.consultation job in Telluride (To hell you ride) Colorado that had its drip line dead center of a city side walk. The owner was lawyer and knew of the hazards of icicles falling at terminal velocity. We designed a whole roof melting system that keep the snow as a liquid, and also had snowmelt in the sidewalk to avoid freezing accumulation.



    I've also used it as a heat trace to keep storm sewers from freezing and clogging. It;s a LOT easier to use electric for these sorts of app, but hey, if you've got them, smoke them :-)



    ME

    There was an error rendering this rich post.

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