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  1. pjdpipingeng

    Pressure test requirements for B31.8 in-service piping

    I have a question concerning the pressure test requirements, particularly with the required test pressure, for a 3" Sch 40 gas pipe. Some history: As already mentioned, the pipe is a 3" Sch 40 API 5L Gr B seamless pipe transporting methane gas. The line has been in service for about 3 years...

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