Hydraulic calculations for non pressure systems

Flow rate and speed calculations for sewer, rainwater and drainage systems (Colebrook White)

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    Incorrect values or formula

    Recommended minimum sole gradient value¹

    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.
    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.
    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.
    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.
    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.
    ¹If the selected sole gradient value is less than the recommended minimum, the calculation should be updated with this value to obtain a correct result to prevent sedimentation.

    Average flow rate²

    ²It is recommended to maintain the optimum flow rate in the range 0.5-1.5 m/s.

    Throughflow

The calculations made and the results provided are informative. They may help you choose the appropriate solutions or products to be used if the user has an understanding of the specific calculation principles. The results of these tools and related information do not replace recommendations from a competent and professional specialist in the field and cannot be extended to products from other manufacturers. EVOPIPES reserves the right to restore and change the content of the information at any time without prior notice, as well as to make improvements and changes to the operation of calculators.

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