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Re: [MW:28715] Seam to Seam distance of welding Joint in Intermediate Pigging Station of Cross Country Pipeline.

Greetings,

Refer ASME VIII UW(d) Except when the longitudinal joints are radiographed 4 in. (100 mm) each side of each circumferential welded intersection, vessels made up of two or more courses shall  have the centers of the welded longitudinal joints of adjacent courses staggered or separated by a distance of at least five times the thickness of the thicker plate.

and

ASME B 31.3, 341.4.1,

Thanks.


Regards,
Mohamed Muneeb Mahaboob
CSWIP 3.2-89247/2 
ASNT-NDT-L2-RTFI-RT-UT-MT-PT.
SAP#:70021650 APs:JAPID, QCS & QCI.
E muneebslsa@gmail.com M +91-636-955-7189

(6:8) They say, "Why has no ˹visible˺ angel come with him?" Had We sent down an angel, the matter would have certainly been settled ˹at once˺, and they would have never been given more time ˹to repent˺.

 
From: Mohit
Date: 2018-12-02 13:30
Subject: [MW:28713] Seam to Seam distance of welding Joint in Intermediate Pigging Station of Cross Country Pipeline.
Dear all,

Can anyone confirm the minimum distance between two longitudinal seams should be maintained in joint welding? 


Refer below details in my case:

Pipe:API 5L X70 24" X 14.3 mm
As per asme b31.3 & asme sec VIII.



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