Re: Wings on Cross

From: <alwyn>
Date: Tue May 06 2003 - 19:03:00 EDT

yes bit they are lousy for reinforcement as they actually become stress raisers

• Original Message ----- From: Geoff Stone DD&D Australia To: PipingDesign@yahoogroups.com Sent: Tuesday, May 06, 2003 3:19 PM Subject: Re: [PipingDesign] Wings on Cross

   Ivan,

   The wings are to provide structural stability. Suggest you gethold of a copy of

   AWWA MS 11 standard for a more detail explanation.

   Geoff Stone

• Ivan Locke <ielocke@stlwater.com> wrote:

  ---

   Hello,

   I had someone ask me what on crosses the large wings at a 45 degree    angle with the flow directions are for. Something like the following (if    you have a good imagination):

||
||

       \ || /
        \||/

   ------++------
   ------++------

        /||\
       / || \


         ||

         ||


   The ones we have are on old cast iron 48"x36" crosses in a pottable

   water distribution manifold. The wings extend almost even with the    flanges.

   I think I remember having heard the reason when I was in school, but    don't remember what it was. I could make a guess at why they are needed,    but thought I'd just ask you guys.

   Thanks

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[Non-text portions of this message have been removed] Received on Tue May 06 19:03:00 2003