pitting of heat exchanger shell

[Mohamedhassanmido]

How can I repair of shell pitting ?can I use welding and what's the procedure and what's the method of inspection and can rt used?

 

[fegenbush]

If the heat exchanger is and ASME pressure vessel, use the guidelines in NBIC Part 3 for repairs and alterations. The most economical repair procedure is dependent on a number of factors including material of construction, expense and availability of NDT contractors, working fluid, and quality of welding personnel. I recommend that you contact a firm or hire a consultant familiar with such repairs to find the most economical repair plan.

 

[EdStainless]

Unless the damage is highly localized you will probably find yourself replacing the shell.
Repairs to shells can be very painful.

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Plymouth Tube

 

[chicopee]

or a portion of the shell.