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.
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---
Comments