I would like to ask how to choose the welds for this cylinder and the connecting pipe
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I would like to ask what type of weld should be used for the cylinder and this fitting (or if there are better alternatives). In the diagram, one option is G49; another option is based on the original design. The wall thickness of the cylinder is 24, while that of the fitting is 27, with a pressure of 7.5 MPa
Hello, I would like to ask what the reason is; when calculating this intubation, does it fall under the category of inserted type or something else?
To ensure full penetration, double-sided grooves should be used as much as possible. If your equipment does not have manholes or device flanges, and the pipes are not large enough to allow for double-sided grooves, then a single-sided groove must be used. TIG welding is employed for the root pass, and full penetration is required; it is at these weld joints that problems are most likely to occur in pressure vessels. Therefore, full penetration is essential, along with appropriate inspection methods. If the nominal diameter of the pipe is ≥250, UT can be used; for smaller pipes, welding one layer followed by inspection of that layer is necessary. MT is used for inspecting carbon steel, while PT is used for inspecting stainless steel.