Dear All,
In pipe line activities the joints which are not hydro tested are generally referred as golden joints.
These joints will come especially making tie-in’s of for 2 hydro test of sections.
I was experienced with the section as follows….
100 % NDT Is must in this case.
Option 1
1. Root 100% DPT
2. Every layer of weld with 100%DPT.
3. Final run 100% DPT.
4. 100 % UT.
Option 2
1. Root 100% DPT
2. 100 % RT
This is my personal experience
Thanks & Regards
Lakshman kumar.B | Manager - QA/QC | LANCO INFRATECH LIMITED
Plot# 1255 | Sanjeevani Chowk | Mahanadi Vihar | Cuttack 753004
Phone : + 91-671-2445033| Mobile: +91 9937286851 | www.lancogroup.com
Go Green |The future will thank you
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of T. Mahendran
Sent: Saturday, October 30, 2010 1:42 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:7936] golden weld joint require ments
Mr Gulam
I could remember the following things for Golden weld.
a) It means , other than of fabrication shop welding, the balance welding which will be done with only one joint at site welding( or) in a tie -in work process. This type of joints are confirmed by 100% RT or UT (NDT), since there may be a practice problem in the hydro test depends with the pipe length.
b)There is no specific code for Golden joint but most of the companies are follow to perform a "golden weld", with 100% NDT by eliminating hydro test.
c) We can refer ASME 31.4, and it permits a "waiver" of a hydro test on “tie-in” welds between two sections of piping , that the weld has already undergone 100% NDT (see Section 437.1.4 (b) Testing Tie ins, ASME B31.4 2002 Edition).
T.Mahendran
KSA
From: Gulam kader <armvasi@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sat, October 30, 2010 9:42:49 AM
Subject: [MW:7933] golden weld joint require ments
Dear all,
can any one explain the golden joint welding , NDT and inspection requirement with Code references.
Regards,
Gulam Kader
--
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.
--
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