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The handbook of Technical irrigaTion informaTion - Hunter Industries

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Friction Loss ChartsNominalSizePipe IDPipe ODWall ThickAustralian Standard PVC PN 9 Plastic PipeC = 150PRESSURE LOSS IN BARS PER 100 METRES25 mm30.533.51.50Bars/Velocity 100 M32 mm38.442.21.90Bars/Velocity 100 M40 mm44.048.22.10Bars/Velocity 100 MSIZES 25 mm THROUGH 80 mm50 mm55.160.32.60Bars/Velocity 100 M80 mm81.388.93.80Bars/Velocity 100 MNominalSizePipe IDPipe ODWall ThickFlowL/min MPS Loss MPS Loss MPS Loss MPS Loss MPS LossFlowL/sec4 0.09 0.00 0.24 0.075 0.11 0.01 0.30 0.086 0.14 0.01 0.36 0.107 0.16 0.01 0.10 0.00 0.42 0.128 0.18 0.02 0.11 0.01 0.48 0.139 0.21 0.02 0.13 0.01 0.54 0.1510 0.23 0.02 0.14 0.01 0.11 0.00 0.60 0.1712 0.27 0.03 0.17 0.01 0.13 0.01 0.72 0.2014 0.32 0.04 0.20 0.01 0.15 0.01 0.84 0.2315 0.34 0.05 0.21 0.02 0.16 0.01 0.90 0.2516 0.36 0.06 0.23 0.02 0.17 0.01 0.96 0.2718 0.41 0.07 0.26 0.02 0.20 0.01 1.08 0.3020 0.46 0.09 0.29 0.03 0.22 0.01 0.14 0.00 1.20 0.3322 0.50 0.10 0.31 0.03 0.24 0.02 0.15 0.01 1.32 0.3724 0.55 0.12 0.34 0.04 0.26 0.02 0.17 0.01 1.44 0.4026 0.59 0.14 0.37 0.05 0.28 0.02 0.18 0.01 1.56 0.4328 0.64 0.16 0.40 0.05 0.31 0.03 0.19 0.01 1.68 0.4730 0.68 0.18 0.43 0.06 0.33 0.03 0.21 0.01 1.80 0.5032 0.73 0.21 0.46 0.07 0.35 0.03 0.22 0.01 1.92 0.5334 0.77 0.23 0.49 0.07 0.37 0.04 0.24 0.01 2.04 0.5736 0.82 0.26 0.51 0.08 0.39 0.04 0.25 0.01 2.16 0.6038 0.87 0.28 0.54 0.09 0.41 0.05 0.26 0.02 2.28 0.6340 0.91 0.31 0.57 0.10 0.44 0.05 0.28 0.02 2.40 0.6742 0.96 0.34 0.60 0.11 0.46 0.06 0.29 0.02 2.52 0.7044 1.00 0.37 0.63 0.12 0.48 0.06 0.31 0.02 2.64 0.7346 1.05 0.40 0.66 0.13 0.50 0.07 0.32 0.02 2.76 0.7748 1.09 0.44 0.69 0.14 0.52 0.07 0.33 0.02 2.88 0.8050 1.14 0.47 0.71 0.15 0.54 0.08 0.35 0.03 3.00 0.8355 1.25 0.56 0.79 0.18 0.60 0.09 0.38 0.03 0.18 0.00 3.30 0.9260 1.37 0.66 0.86 0.21 0.65 0.11 0.42 0.04 0.19 0.01 3.60 1.0065 1.48 0.76 0.93 0.25 0.71 0.13 0.45 0.04 0.21 0.01 3.90 1.0870 1.59 0.88 1.00 0.28 0.76 0.15 0.49 0.05 0.22 0.01 4.20 1.1775 1.71 1.00 1.07 0.32 0.82 0.17 0.52 0.06 0.24 0.01 4.50 1.2580 1.82 1.12 1.14 0.36 0.87 0.19 0.56 0.06 0.26 0.01 4.80 1.3385 1.94 1.26 1.22 0.40 0.93 0.21 0.59 0.07 0.27 0.01 5.10 1.4290 2.05 1.40 1.29 0.45 0.98 0.23 0.63 0.08 0.29 0.01 5.40 1.5095 2.16 1.54 1.36 0.50 1.04 0.26 0.66 0.09 0.30 0.01 5.70 1.58100 2.28 1.70 1.43 0.55 1.09 0.28 0.70 0.09 0.32 0.01 6.00 1.67110 2.51 2.03 1.57 0.65 1.20 0.34 0.77 0.11 0.35 0.02 6.60 1.83120 2.73 2.38 1.72 0.77 1.31 0.40 0.83 0.13 0.38 0.02 7.20 2.00130 2.96 2.76 1.86 0.89 1.42 0.46 0.90 0.15 0.42 0.02 7.80 2.17140 3.19 3.17 2.00 1.02 1.53 0.53 0.97 0.18 0.45 0.03 8.40 2.33150 3.42 3.60 2.14 1.16 1.63 0.60 1.04 0.20 0.48 0.03 9.00 2.50175 3.99 4.79 2.50 1.54 1.91 0.80 1.22 0.27 0.56 0.04 10.5 2.92200 4.56 6.13 2.86 1.97 2.18 1.02 1.39 0.34 0.64 0.05 12.0 3.33225 5.13 7.62 3.22 2.45 2.45 1.27 1.57 0.43 0.72 0.06 13.5 3.75250 5.70 9.27 3.57 2.98 2.72 1.54 1.74 0.52 0.80 0.08 15.0 4.17275 3.93 3.56 3.00 1.84 1.91 0.62 0.88 0.09 16.5 4.58300 4.29 4.18 3.27 2.16 2.09 0.72 0.96 0.11 18.0 5.00325 4.65 4.85 3.54 2.50 2.26 0.84 1.04 0.13 19.5 5.42350 5.00 5.56 3.81 2.87 2.43 0.96 1.12 0.15 21.0 5.83375 5.36 6.32 4.09 3.26 2.61 1.09 1.20 0.17 22.5 6.25400 5.72 7.12 4.36 3.68 2.78 1.23 1.28 0.19 24.0 6.67450 4.90 4.58 3.13 1.53 1.44 0.23 27.0 7.50500 5.45 5.56 3.48 1.87 1.60 0.28 30.0 8.33550 5.99 6.64 3.83 2.23 1.76 0.34 33.0 9.17600Shaded area represents4.17 2.61 1.92 0.40 36.0 10.0650 velocities over 1.5 mps. Use4.52 3.03 2.08 0.46 39.0 10.8700 with caution where water4.87 3.48 2.24 0.53 42.0 11.7750hammer is a concern.5.22 3.95 2.41 0.60 45.0 12.5800 5.56 4.45 2.57 0.68 48.0 13.3900 2.89 0.84 54.0 15.01000 3.21 1.02 60.0 16.71100 Conversions:3.53 1.22 66.0 18.31200 Bars/100 M x 100 = kPa/100 M3.85 1.43 72.0 20.01300 Bars/100 M x 10.21 = Metres/100 M4.17 1.66 78.0 21.71400 4.49 1.91 84.0 23.31500Bars/100 M x 4.42 = PSI/100 ft.4.81 2.17 90.0 25.01600 5.13 2.44 96.0 26.71700 5.45 2.73 102.0 28.3FlowCu.M/Hr117

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