welding after pressure testing is not acceptable. Before hydro test the line clearance to be made which includes welding, repair welding if any, NDT clearance, PWHT and all other punch list related to welding. After hydro test, only painting and insulation could be carried out.
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-----Original Message-----
From: Himan Nikdin
Sent: 16/04/2012, 10:29 AM
To: materials-welding Group
Subject: [MW:14110] welding after hydrostaic test
*Dear experts*
**
*I would appreciated if anyone can share some refrence (code) regarding
allowance of welding after hydrostatic test on pressure vessle which repair
area fully radiographed and the result is accepatble.*
**
*Regards,*
*himan Nikdin*
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