The problem of equal-diameter tees for oxygen pipelines
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Clause 6.3.9-f of SH/T3059-2012 stipulates that equal-diameter tees should be used for oxygen pipeline tees. Is there any problem with using a reducer tee? I need an expert to explain it.
The Chinese character for \"yi\" can also be harmful. . I’m afraid I won’t be able to explain it clearly; you’d better use equal-diameter. . Increase the small end size as well.
If it is oxygen, is stress corrosion at the welds at the diameter change site a relatively more serious issue? However, other gases also have corrosion issues at their respective stress points; it seems that this is not the case here. Is it true that not only oxygen pipelines but also other pipelines face this problem? It is advisable to use equal-diameter tees – after all, it is often difficult to obtain tees with varying diameters, and it’s hard to match the wall thicknesses in such cases. By using tees with equal diameters, as well as reducers, these problems can be solved more easily, avoiding the need for changes during construction, which would incur significant costs. Are there any regulations or explanations in the standards regarding this?