Dear Exports,
We plan to cut out the CS1 & CS2 joints completely since the cracks are all over the joint. Then, remove all cracks and perform NDT and re-welding of the joints.
Our concern is the difficulty in performing hydrostatic tests. Please let us know if the hydrostatic test is mandatory after repair. The drum has Several nozzles connected to different parts of the HRSG and main steam headers. Hence, blinding of the nozzles would be challenging. Please let us know if we can use any alternative method instead of the Hydrostatic test.
BR,
MIDHUN
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Comments
In My Opinion,
It's Better to do Hydro Test after Major Repair (In High Pressure Drum)
If Client Not Required Hydro Test & If Client Accept With NDT - You can waive off
Client Confirmation is Main
Thanks
Best Regards
Firoze
BV-ADH
Thanks
Best Regards
Firoze
In My Opinion
If Any Repair Carried out after Hydro Test
Hydro Re-Test To Be Carried out along with Repair Joint NDT Reports.
Getting Client Approval Prior to these is Good Practice.
(client acknowledgement is Important)
Thanks
Best Regards
Firoze
BV-AUH