Re: 90.08 degree elbow?

From: <Christopher>
Date: Tue Sep 21 2004 - 12:42:00 EDT

On Sep 21, 2004, at 11:13 AM, Rich Scotti wrote:

> We used to call these "cartoons" back when I made drawings for a
> living.

Everyone except the cartoonist or the manager who thought it was OK called them that. ;->

> Since various organizations have their own standard for how much miter
> is allowed to a butt-welded connection the program provides a way to
> increase the value as required. I was hoping to hear is there was a
> defacto standard for this or if some additional requirement appeared
> during this string.

That's the reason you have drawing notes. I think the de facto standard is covered by proper fit-up for welding. The solution lies in understanding of how your fab shop approaches the work. If there are a lot of these details it might make more sense to shop fab the elbows from 180 deg bends. If there's only one the welder can probably fit it by hand if the pipe isn't too big or the wall isn't too thin. The point is that it's wrong to assume that the welder of estimator can read your mind and use the AutoCAD trick for cosmetic appeal. Sure as hell, if you do, you'll be getting a call late some Friday afternoon, saying that the system won't fit the way it was designed and there's a crew standing around waiting for someone to explain the drawing.

Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=UJlnhk7BNCGtKkItN5dkA0Y4Y-akm3pCcACsN-je-22KTJRTrS8CPJoqCGJy0C-a6qBESyZQ8Io30SM">chrisw@skypoint.com</a> | this distance" (last words of Gen.

...................................| John Sedgwick, Spotsylvania 1864)

<a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a> Received on Tue Sep 21 12:42:00 2004