Re: Stoppling and Hot-Tapping

From: <Paul>
Date: Sat May 26 2001 - 00:44:00 EDT

OK, Ralph, I definitely respect your insight.

How can you explain the situation I described? Local anomalies/friendly inspector?

It's good to see the tech detail guys getting involved in such an esoteric discussion. This is the kind of thing I have always wanted to see on the list.

To make it simpler for everyone (and I readily admit that I'm not up on welding technology and codes), can you make this explanation a bit easier to understand?

Paul

> not if you're doing a Code welding. ive been involved in the
preparation of
> over 70 WPS - welding procedure specification from CS, to SS all
the way to
> exotic metals (duplex and Cr-Ni)and reviewed hundred more
submitted by the
> LSTK including endless discussion with weld rods and machine
supplier plus
> pipe/vessel/tank fabricator. We've used MIG. stick, TIG and SAW.
>
> But if did Paul, you took a very big chance. Results of PQR do
indicate,
> that youll get a an acceptable weld at a temp no lower than 10C.
>
>
> -----Original Message-----
> From: Paul Bowers [mailto:pbowers@pipingdesign.com]
> Sent: 26 May, 2001 3:01 AM
> To: PipingDesign@yahoogroups.com
> Subject: Re: [PipingDesign] Stoppling and Hot-Tapping
>
>
> I may be imagining things again, but I'm pretty sure I've seen
> welding done at ambient temps below freezing. I seem to remember
> steam-heated temporary tents built around the pipeline to
enclose
> the welder and equipment.
Received on Sat May 26 00:44:00 2001

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