[MW:1190] Re: 1177] Radiography of tube to tubesheet welds

Friends,

Helium leak test may be carried out to ensure the quality of TTS weld joints after PT.

Rajesh

--- On Mon, 10/6/08, Tirumala B N Tagore <tagore.tbn@gmail.com> wrote:

> From: Tirumala B N Tagore <tagore.tbn@gmail.com>
> Subject: [MW:1187] Re: 1177] Radiography of tube to tubesheet welds
> To: materials-welding@googlegroups.com
> Date: Monday, October 6, 2008, 1:52 PM
> In ceratin conditions Tube are attached to tube sheet by
> Butt weld
> configuration. (Eg when coke formation is anticipated,
> thermal gradient
> requirements demand etc.)
> In such cases TTP joint is examined by UT. The butt weld
> is a
> radiographable theoretically but in practice RT is not
> feasible due to
> presence of cluster of joints. UT is the NDE demaded for
> such joints.
> Internal bore welding machines are used for such welds.
> Tagore
>
>
> On 10/5/08, Jignesh Patel <nacemail@gmail.com> wrote:
> >
> >
> > Dear Mr. Raghuram,
> >
> > I have never heard or seen RT of TTS [Tube to
> Tubesheet joints]. TTS welds
> > are normally checked by Penetrant testing, Pneumatic
> testing and complete
> > penetration [during mock up tests].
> >
> > I too would like to know if RT of TTS is carried out
> and how its done.
> >
> > Thanks and regards,
> >
> >
> >
> > Jignesh
> >
> > Kuwait
> >
> >
> >
> > For your virus protection, any attachments should be
> considered
> > uncontrolled
> > unless they are identified in the text. The sender
> does not accept
> > liability
> > for any virus introduced by this email or any
> attachment.
> >
> > -----Original Message-----
> > From: materials-welding@googlegroups.com
> > [mailto:materials-welding@googlegroups.com] On Behalf
> Of Bathula Raghuram
> > (Mumbai - PIPING)
> > Sent: Wednesday, October 01, 2008 11:18 AM
> > To: Materials-Welding (E-mail)
> > Subject: [MW:1177] Radiography of tube to tubesheet
> welds
> >
> >
> > Can anybody has experience with performance of RT on
> tube to tubesheet
> > welds, please share details for both techniques (i.e.
> back radiation and
> > forward radiation), equipment literature if any for
> this type RT.
> >
> >
> >
> >
> > >
> >
>
>

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