Re: minimum pipe spool length

From: <elie>
Date: Tue Jan 09 2007 - 22:14:00 EST

What paragraph or section in API 1104?

MAIL MUG <melvin_magbanua@yahoo.com> wrote: AS PER API 1104 ITS 100mm.

• Original Message ---- From: Paul Bowers <pbowers@pipingdesign.com> To: <a href="/group/PipingDesign/post?postID=YiPVYLN-hFu7LhbXr2RzdWCY1PEr5Np-jyaXFBY1jD4B_imIBu_Q78sqhNaD2gjwDhoUhwJ-c2IGs56ISBBkMjNL6apj">PipingDesign@yahoogroups.com</a> Sent: Saturday, January 6, 2007 10:40:54 AM Subject: Re: [PipingDesign] minimum pipe spool length

Good question, as I was just pondering this the other day.

The relevant factor is probably the heat affected zone, which I think was commented-on here a few years ago.

Related is the question of how close you can weld a branch, re-pad or olet. The pipingdesign archives probably has some replies, but none of these are guaranteed answers.

Some say it is 2" but that likely depends on pipe wall thickness and specific welding procedures (I don't know enough to be more helpful, maybe others do). One NPS is likely the safest way to go unless you're really stuck for a solution.

Paul

dd jdh wrote:
> hi all,
>
> May anyone tell what will be the minimum possible pipe spool length
> for a butt welded end connection.
>
> As per AWS the minimum pipe spool length required in a line is one
> NPS.
>
> where site condition restricts this minimum requirement, is it
> possible to adopt
> lesser length spools.
>
> thanks and regards,
> Sadanandan.M. K
> PE middle east

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[Non-text portions of this message have been removed] Received on Tue Jan 09 22:14:00 2007