Re: Stoppling and Hot-Tapping

API has developed a procedure for welding or "Hot Tapping" on equipment in service -their procedure RP 2201. Of course they do not mention liquid nitrogen freezing. Maybe they would be too concerned about brittle fracture and the need of a test coupon. Everett Nichols

• Original Message ----- From: Paul Bowers <pbowers@pipingdesign.com> To: <Pipingdesign@yahoogroups.com> Sent: Sunday, May 20, 2001 1:54 PM Subject: Re: [PipingDesign] Stoppling and Hot-Tapping

> <<Hi Paul, I know a company in Aberdeen Scotland called
> Furmanite have been doing 'hot taps' for the last 15 years.
>
> regards, Derek Littleford >>
>
>
> Is this the page?
>
> <a href="http://www.furmaniteusa.com/services/pipeline.asp">http://www.furmaniteusa.com/services/pipeline.asp</a>
>
> Pretty good basic explanation of how it's done. Some might think
> that the high heat generated by cutting steel would be dangerous
> while tapping into potentially flammable process fluid streams.
>
> In all the refineries/mills/process facilities I've visited,
> hot-tapping/stoppling is regarded as a specialty service,
> something not to be attempted by the average fitter.
>
> I remember from about 20 years ago watching the procedure done out
> in a tank farm.
>
>
> Paul
>
>
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Received on Mon May 21 09:44:00 2001