Re: Loop

not for 30 meter straight line pipe loop is needed but after 30 meter straight line pipe loop is needed.

Erik Scheir <erik.scheir@pandora.be> wrote: Michael Roble schreef:
>
> I'm still relatively new, but I had to deal with some pretty extreme
> expansion loops on a previous job.
>
> Q1: I don't think you accurately CAN design a loop without having a
> temperature, at least not without just taking an extreme temp and
> going off
> that.
>
> Q2: Well, looking at this matrix and using 160 degrees as an example, it's
> saying that the expansion of steel pipe is 1.224 inches. I believe it
> doesn't matter where you put them and how far apart, just as long as you
> take into consideration the 1.224 per 100 feet. It purely depends on your
> environment in which you are piping and client requirements I'm guessing.
>
> Michael Roble
>
> Piping Department
>
> Continental Design & Management Group
>
> Pittsburgh, PA
>
> From: <a href="/group/PipingDesign/post?postID=bOTq65iVKtYvbo9c6UB2zS0sh3jaLr0GZR9eq6w4AUr-rhm505Rm0nQlruclTL0w7NRKxdMJZ6ZzfUZIAvfbkgodveu3-L0">PipingDesign@yahoogroups.com</a>
> <mailto:PipingDesign%40yahoogroups.com>
> [mailto:<a href="/group/PipingDesign/post?postID=bOTq65iVKtYvbo9c6UB2zS0sh3jaLr0GZR9eq6w4AUr-rhm505Rm0nQlruclTL0w7NRKxdMJZ6ZzfUZIAvfbkgodveu3-L0">PipingDesign@yahoogroups.com</a>
> <mailto:PipingDesign%40yahoogroups.com>] On
> Behalf Of Tanvir Ibrahim Mulla
> Sent: Tuesday, July 03, 2007 9:51 AM
> To: <a href="/group/PipingDesign/post?postID=bOTq65iVKtYvbo9c6UB2zS0sh3jaLr0GZR9eq6w4AUr-rhm505Rm0nQlruclTL0w7NRKxdMJZ6ZzfUZIAvfbkgodveu3-L0">PipingDesign@yahoogroups.com</a> <mailto:PipingDesign%40yahoogroups.com>
> Subject: [PipingDesign] Loop
>
> Q1. What thumb rule says after how many distance/length we should
> provide a
> loop.(unknowingly temp.)
>
> Q2. If we know the temp. of line then after what distance loop should be
> provided. I mean to say a loop should be design to bear max. how much
> expansion
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
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10:02
>

It is very important where you put the loops with respect to the anchors. You have to calculate the stresses in the bends of the loop (Code stress).

Erik

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[Non-text portions of this message have been removed] Received on Wed Jul 04 13:27:00 2007