The design pressure of the oxygen pipeline is 0.8 kgf; is it necessary to perform flaw detection on the TIG weld seam?
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Gentlemen, the oxygen pipeline installation in the newly built air separation plant of our factory is complete. However, the management now says that a pressure of 0.8 kilograms does not constitute a pressure vessel, and therefore no flaw detection is required. But what I read in books doesn’t say that oxygen pipelines with low pressure don’t need to be inspected! I would appreciate it if everyone could give some advice on whether flaw detection is necessary or not; looking forward to experts’ guidance! ! !
The operating pressure is 0.08 Mpa, and the operating temperature should be at room temperature. One of the definitions for pressure pipelines is that the maximum operating pressure is greater than or equal to 0.1 Mpa. It is evident that the oxygen pipelines in your company do not meet this requirement; therefore they should not be considered pressure pipelines. In my opinion, there is no need for flaw detection in such cases! PS: Pressure pipelines are different from pressure vessels.