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  • Users: Rodddxl
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  1. Rodddxl

    Pressure drop through perforated pipe inlet

    I am pulling water out of a 500 psi pressure vessel with a 12" perforated pipe. I need to calculate the pressure drop across the perforated holes. Essentially, it is a sparge tube flowing in the reverse direction. Would a sparge tube pressure drop calculation still be accurate with the reverse flow?
  2. Rodddxl

    ERW vs EFW piping

    A client specified Sch 40, CS, ERW, ASTM A53-B, type E piping for a low pressure steam piping system we are going to fabricate. They provided the material requisition for what they are purchasing and the material description is EFW piping. I believe EFW piping is ASTM A671. Ignoring the fact...

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