Flow Measurements Recommendations

  • Flow Measurements Recommendations

     Chaitanya updated 1 year, 2 months ago 1 Member · 1 Post
  • Chaitanya

    Member
    July 16, 2020 at 1:03 pm

    Measuring principles and technology shall be selected according to the application.

    Typical evaluation criteria are as follows:

    • high accuracy requirements

    • high rangeability requirements

    • low pressure-drop requirements

    • dirty fluids

    • large pipe sizes

    • low flows

    • straight pipe requirements

    All flow elements shall be marked with flow direction.

    Flow Orifice Plates, Nozzles and Venturi Tubes

    Flow orifice plates, nozzles and venturi tubes shall be calculated, manufactured and installed
    according to ISO 5167.

    Straight length requirements shall as a minimum satisfy the “0.5 additional uncertainty”
    requirements.

    Welded neck orifice flanges to ANSI B16.36 with flange tapping is standard.

    Temporarily installed spacers shall be clearly marked as such.

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