Aeration System - Piping System 2


    3. Total Fitting Head Loss

    Le equivalent length(ft)

    C hydraulic head coefficient

    D diameter of fittings(in)

    Item D No. C Le(ft) Q (CFM) H (in)
    Gate valve 18" 2 0.25 23 7,100 0.15
    12" 1 0.25 14 1,775 0.04
    Elbow 12" 2 0.33 18 1,775 0.05
    Tee 14" 1 0.42 28 3,550 0.18
    16" 1 0.42 33 5,325 0.21
    12" 4 0.42 92 1,775 0.24
    18" 1 0.42 38 7,100 0.24
    Check valve 18" 1 2.00 250 7,100 1.60
    Total           2.77

    S hi = 2.71 in H2O = 0.1 Psi

    C D(inch)

    4. Air filter and silencer

    At blower inlet: Series F64, provide 16 dB ~ 20 dB noise reduction and 98% removal efficiency

    on 10 micron particles.

    Select 4 F64-8, Air rating < 1,800 CFM

    Pressure drop = 2.5 in H2O = 0.09 Psi

    At blower outlet: BMSI silencer

    5. Total head loss in piping system

    D H = 0.09 + 0.1 + 0.05 = 0.24 Psi

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