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change of drain pipe

From: MIROSLAV [879] 0 Stars
Date: Thursday, December 30, 2010
Time: 1:42:11 PM
Remote Name: 200.87.196.66

Comments

allowed by regulation to make the change of a drain pipe of the tank by completely removing the pipe and put a new one?? is allowed to grind the welds in both the body and the reinforcement and welded the new pipe?? some benchmark API 653??
attached picture showing corrosion in actual drain pipe and it´s diagram
thanks


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