Article 3.6: Mechanical clamp repair. It is acceptable thing to do during running plant.
You can also try for injection clamps where material compatible to process fluid along with temperature is injected through mechanical clamp and it gets solidified. Works best for pinhole leaks.
I also suspect a minor crack in weld surface, as appears from photo.
Regards,
Devang Majithia
Devang Majithia
On Thu, Mar 28, 2019 at 7:59 AM Tadic, Miroslav <Miroslav.Tadic@ypfbchaco.com.bo> wrote:
--Dear all,
We have the attached case. It´s about a B31.3 line with hot oil service.
There is a minimum leak in weld material. The material temperature service it´s about 470 °F.
We are considering repair this leak, but there a problem in get out of service this system which include a complete plant turn off.
So, i´d like to know which code can I use for this repair. I was considering ASME PCC-2, but in not sure about which section applies for this case.
Please if you can give me some references
Thanks in advance
Best regards,
Miroslav Tadic
Integrity Enginner
Telef. Of. 591-3-3663714
Gerencia de producción
YPFB Chaco S.A.
https://materials-welding.blogspot.com/
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