Weld numbering issue for heat exchange tubes and tube sheets
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As the title suggests, a heat exchanger has multiple welding joints between the heat exchange tubes and the tube sheet. How should the weld numbers be assigned in the process card? Should it be C1-----CX/, or should a single weld symbol be used to represent the connection between the heat exchanger and the tube sheet?
There’s no need to number them individually; a textual description of the welds between the heat exchange tubes and the tube sheet is sufficient.
This post was last edited by wanlirn on 2022-1-4 at 13:02. For inspections that are conducted solely on the surface, usually it’s sufficient to assign just one serial number. In recent years, however, for many cases involving internal hole welding where RT is required, we have to assign as many serial numbers as there are welds; otherwise, it would be difficult to keep track of the radiographs