Construction on Saarland’s first hydrogen pipeline officially began in Wallerfangen at the end of August, marking a pivotal milestone for green energy infrastructure in the Greater Region.

  • k0e3@lemmy.ca
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    1 个月前

    Why does the pipe need to do that before (or after?) the valve? Seems like a weird flex.

    • Novi@piefed.social
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      1 个月前

      I’m assuming that it is similar to the trap in your sink. Except because hydrogen is the lightest element, it has to be upside down. Confident that this is for preventing backflow when the valve is closed and the pipe is opened for maintenance.

      Edit: I appear to be incorrect and it has to do with handling the expansion and contraction of the pipe.