Tuesday, August 17, 2010

[MW:6549] pwht for service vessel

Dear all

I have an vessel which is pwht as per service requirement,mention in note not to weld on pressure part after pwht cycle ,but we want cement lining inside the vessel up tp half portion to do this we have to put wire mash for lining to do this we have to weld this mesh with vessel , my doubt is that is this required pwht ?even this mesh weld will nt be in contact with servic after lining . Vessel mat is kcs with 34mm thk.

Regards

Sunil singh

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