Its depend to the design process requirement. We cannot simply plug off the heat exchanger tubes , we refer to equipment designer or plant process engineer because if too many tubes plugged off it may effect the process flow.We need to know the minimum required tubes for the equipment. Generally 1 tube plugged off will not effect much to the process requirement.
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-------- Original message --------
Subject: [MW:16117] thinning of tubes
From: Kishore Kumar <kishore103103@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
CC:
Dear all,
How do we accept tubes thinning? We have tubes which is SA 179,
19.05 mm and Dia, 2.11mm? and welded with tube sheets with exchangers?
How do we accept or reject? How many tubes could be plugged if they are corroded externally? kindly give me your suggestions?
regards
kichu
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