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Newly installed ethylene pipelines

2009-03-10View Original

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New pipeline: operating pressure of 45 Bar, design pressure of 50 Bar, at room temperature, pipe size of 1 inch! Question: 1. Can 20# steel be used? ? We used ATSM A312 pipes before! 2. Is this pipe a pressure pipeline? It turns out that 1 inch is not counted, but I heard that it is now included. 3. The installation company provided a quality guarantee certificate for the pipes, but the pipes themselves do not have batch numbers. Are pipes with batch numbers necessary? ? ? Is a guarantee letter alone sufficient? Are there any standards I can refer to? Thank you! !

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