Pipe plugging issues during heat exchanger maintenance
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After the pipe plugs in the heat exchanger are installed and there is no leakage, is it still necessary to weld the plugs? And what are the benefits of welding? I would like to ask if there are any regulations regarding this.
It depends on the operating pressure, and maybe even the operating temperature? There is also the extent of the harm caused by internal leakage. The vast majority of them need to be welded.
It mainly depends on the pressure that the tube side and shell side can withstand to decide whether welding should be used; each plug also has a certain pressure tolerance. This approach is not a sustainable solution, and it is necessary to find a way to maintain the heat exchanger. Don’t cause an accident.
Is there any regulatory basis? Experience is important, but facts ultimately depend on regulations. Is there any relevant regulatory basis? Thank you
The fuse was still welded in; no relevant specifications could be found
There are no specific regulations; it depends on factors such as your working environment, operating pressure, and the properties of the materials.