We use iso's for weld mapping so that we know which boilermaker makes the most
mistakes. If you dont have accurate FFW defined where does the inspector go to
shoot the radiographs? Even if the spec requires only 5 or 10 % you would want
to shoot the field welds over the shop welds wouldnt you?
"SARE, RALPH H." <SARERH@YANPET.SABIC.com> on 13/06/2001 15:15:20
Please respond to <a href="/group/PipingDesign/post?postID=xKkV5RRIfHlqDqw4NHPlikX3uEvfppgTvEm5sVsbK3iP-d_0WbjGWZ5kx1x5pBsKhRLmAZEQTaVpd0hwOMfXXE8nVQ">PipingDesign@yahoogroups.com</a>
To: "'PipingDesign@yahoogroups.com'" <PipingDesign@yahoogroups.com> cc:
Subject: RE: [PipingDesign] Piping Erection
looks like it mark. i have not seen one since the CAD becomes popular. Now all i see are iso's (afc approved for construction)- both for shop fab and field erection. Flour Daniel, Abb Lummus, Toyo, Mitsu and lot of others do show the FW (field welds) symbol. u can't schedule the hydro, nde and handover of the system if you can not track all completed field welds .
the
reference is normally the iso's.
> ----------
> From: Mark upston[SMTP:mmwind@cnsp.com]
> Reply To: <a href="/group/PipingDesign/post?postID=xKkV5RRIfHlqDqw4NHPlikX3uEvfppgTvEm5sVsbK3iP-d_0WbjGWZ5kx1x5pBsKhRLmAZEQTaVpd0hwOMfXXE8nVQ">PipingDesign@yahoogroups.com</a>
> Sent: 12 June, 2001 6:03 PM
> To: <a href="/group/PipingDesign/post?postID=xKkV5RRIfHlqDqw4NHPlikX3uEvfppgTvEm5sVsbK3iP-d_0WbjGWZ5kx1x5pBsKhRLmAZEQTaVpd0hwOMfXXE8nVQ">PipingDesign@yahoogroups.com</a>
> Subject: RE: [PipingDesign] Piping Erection
>
> I agree to specify FFW's at the design stage gets everyone thinking on the
> same page,
> expecially close to boilers, pumps, etc to avoid some fitter bolting up a
> flange
> and causing alignment problems.
>
> Are fabrication shops producing pipe spools are thing of the past?
>
> Mark
>
> -----Original Message-----
> From: Gerardo Delgado [mailto:gdelgado@tecnoconsult.com]
> Sent: Monday, June 11, 2001 4:01 PM
> To: <a href="/group/PipingDesign/post?postID=xKkV5RRIfHlqDqw4NHPlikX3uEvfppgTvEm5sVsbK3iP-d_0WbjGWZ5kx1x5pBsKhRLmAZEQTaVpd0hwOMfXXE8nVQ">PipingDesign@yahoogroups.com</a>
> Subject: Re: [PipingDesign] Piping Erection
>
>
> I totally agree. It is not a waste of time. Put them on the isos!
> Gerardo
>
> geoff.stone@lendlease.com.au wrote:
>
> > It depends on the project. I have had cases where the shop fabricator
> was
> a
> > differnent organisation to the installation contractor. Off shore work
> is
> > invariably like this. I have normally got an experienced supervisor or
> foreman
> > to mark up the isos at checking stage for the FFWs. In the contract
> documents
> > you can always allow the fabricator/field installer to change the FFWs
> if
> they
> > are one and the same.
> >
> > Many contractors do not produce shop spool drawings these days
> preferring
> to
> > work directly from the isos. They may not even have a spooling shop
> rather
> > erecting a temporary area at site.
> >
> > I do not think this level of detail is a waste of time if you use
> experienced
> > resources to put on the information. Even if the field guy has a
> different
> > opinion to where FFWs go it does not mean they are right or any smarter
> than the
> > designer.
> >
> > "Paul Bowers" <pbowers@pipingdesign.com> on 08/06/2001 09:26:26
> >
> > Please respond to <a href="/group/PipingDesign/post?postID=xKkV5RRIfHlqDqw4NHPlikX3uEvfppgTvEm5sVsbK3iP-d_0WbjGWZ5kx1x5pBsKhRLmAZEQTaVpd0hwOMfXXE8nVQ">PipingDesign@yahoogroups.com</a>
> >
> > To: <PipingDesign@yahoogroups.com>
> > cc:
> >
> > Subject: [PipingDesign] Piping Erection
> >
> > Just wondering what the general consensus is on this, me not being
> > a fab guy.
> >
> > Should field weld and field-fit welds be indicated on the piping
> > isometric (I'm not referring to spool sheets)?
> >
> > Since it is the piping fabricator who will be installing the
> > system, aren't they in a better position to determine where to
> > break up the line? I suspect that most effort put into specifying
> > FWs and FFWs is wasted.
> >
> > Paul
> >
> >
> > Yahoo! Groups Sponsor
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> >
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[Non-text portions of this message have been removed] Received on Wed Jun 13 01:29:00 2001
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