The handbook of Technical irrigaTion informaTion - Hunter Industries

Friction Loss ChartsNominalSizePipe IDPipe ODWall Thick½"*0.5200.6200.150Velocity½"*0.6000.700(4)0.050(2)VelocityPolyethylene Pipe – Pepco ProductsC=140Pressure Loss Per 100 Feet Of Pipe (PSI) Sizes ½" Through 1¼"½"*0.6200.7100.045VelocityPepco Products⁵/₈"0.7200.8300.055Velocity¾"0.8300.9400.055Velocity1"1.0601.2000.070Velocity1¼"1.3901.5500.080NominalSizePipe IDPipe ODWall ThickVelocityFPS PSI Loss Flow GPMFlow GPM FPS PSI Loss FPS PSI Loss FPS PSI Loss FPS PSI Loss FPS PSI Loss FPS PSI Loss0.25 0.38 0.09 0.28 0.04 0.27 0.04 0.20 0.02 0.15 0.01 0.09 0.00 0.250.50 0.75 0.32 0.57 0.16 0.53 0.14 0.39 0.07 0.30 0.03 0.18 0.01 0.11 0.00 0.500.75 1.13 0.68 0.85 0.34 0.80 0.29 0.59 0.14 0.44 0.07 0.27 0.02 0.16 0.01 0.751.00 1.51 1.17 1.13 0.58 1.06 0.50 0.79 0.24 0.59 0.12 0.36 0.04 0.21 0.01 1.001.25 1.89 1.76 1.42 0.88 1.33 0.75 0.98 0.36 0.74 0.18 0.45 0.06 0.26 0.01 1.251.50 2.26 2.47 1.70 1.23 1.59 1.05 1.18 0.51 0.89 0.25 0.54 0.08 0.32 0.02 1.501.75 2.64 3.29 1.98 1.64 1.86 1.40 1.38 0.67 1.04 0.34 0.64 0.10 0.37 0.03 1.752.00 3.02 4.21 2.27 2.10 2.12 1.79 1.57 0.86 1.18 0.43 0.73 0.13 0.42 0.04 2.002.25 3.39 5.23 2.55 2.61 2.39 2.22 1.77 1.07 1.33 0.54 0.82 0.16 0.48 0.04 2.252.50 3.77 6.36 2.83 3.17 2.65 2.70 1.97 1.31 1.48 0.65 0.91 0.20 0.53 0.05 2.502.75 4.15 7.59 3.12 3.78 2.92 3.22 2.16 1.56 1.63 0.78 1.00 0.24 0.58 0.06 2.753.00 4.53 8.91 3.40 4.44 3.18 3.79 2.36 1.83 1.78 0.92 1.09 0.28 0.63 0.07 3.003.25 4.90 10.34 3.68 5.15 3.45 4.39 2.56 2.12 1.92 1.06 1.18 0.32 0.69 0.09 3.253.50 5.28 11.86 3.97 5.91 3.71 5.04 2.75 2.43 2.07 1.22 1.27 0.37 0.74 0.10 3.503.75 5.66 13.48 4.25 6.72 3.98 5.73 2.95 2.77 2.22 1.38 1.36 0.42 0.79 0.11 3.754.0 6.04 15.19 4.53 7.57 4.25 6.45 3.15 3.12 2.37 1.56 1.45 0.47 0.84 0.13 4.04.5 6.79 18.89 5.10 9.41 4.78 8.03 3.54 3.88 2.67 1.94 1.63 0.59 0.95 0.16 4.55.0 7.54 22.96 5.67 11.44 5.31 9.76 3.94 4.71 2.96 2.36 1.82 0.72 1.06 0.19 5.05.5 8.30 27.39 6.23 13.65 5.84 11.64 4.33 5.62 3.26 2.81 2.00 0.86 1.16 0.23 5.56.0 9.05 32.18 6.80 16.04 6.37 13.67 4.72 6.61 3.55 3.31 2.18 1.01 1.27 0.27 6.06.5 9.81 37.32 7.37 18.60 6.90 15.86 5.12 7.66 3.85 3.84 2.36 1.17 1.37 0.31 6.57.0 10.56 42.82 7.93 21.34 7.43 18.19 5.51 8.79 4.15 4.40 2.54 1.34 1.48 0.36 7.07.5 11.32 48.65 8.50 24.25 7.96 20.67 5.90 9.99 4.44 5.00 2.72 1.52 1.58 0.41 7.58.0 12.07 54.83 9.07 27.33 8.49 23.30 6.30 11.25 4.74 5.63 2.90 1.71 1.69 0.46 8.08.5 12.83 61.34 9.63 30.57 9.02 26.06 6.69 12.59 5.03 6.30 3.09 1.92 1.79 0.51 8.59.0 13.58 68.19 10.20 33.99 9.55 28.98 7.08 14.00 5.33 7.01 3.27 2.13 1.90 0.57 9.09.5 14.33 75.37 10.77 37.57 10.08 32.03 7.48 15.47 5.63 7.75 3.45 2.36 2.01 0.63 9.510 15.09 82.88 11.33 41.31 10.61 35.22 7.87 17.01 5.92 8.52 3.63 2.59 2.11 0.69 1011 16.60 98.89 12.47 49.29 11.68 42.02 8.66 20.30 6.51 10.16 3.99 3.09 2.32 0.83 1112 18.11 116.20 13.60 57.90 12.74 49.36 9.44 23.85 7.11 11.94 4.36 3.63 2.53 0.97 1213 19.62 134.70 14.73 67.16 13.80 57.25 10.23 27.66 7.70 13.85 4.72 4.21 2.75 1.13 1314 15.87 77.04 14.86 65.67 11.02 31.72 8.29 15.88 5.08 4.83 2.96 1.29 1415 17.00 87.54 15.92 74.63 11.81 36.05 8.88 18.05 5.45 5.49 3.17 1.47 1516 18.13 98.65 16.98 84.10 12.59 40.63 9.48 20.34 5.81 6.19 3.38 1.65 1618 19.11 104.60 14.17 50.53 10.66 25.30 6.54 7.69 3.80 2.06 1820 15.74 61.42 11.84 30.75 7.26 9.35 4.22 2.50 2022 17.31 73.27 13.03 36.68 7.99 11.16 4.65 2.98 2224 18.89 86.08 14.21 43.10 8.71 13.11 5.07 3.51 2426 15.40 49.99 9.44 15.20 5.49 4.07 2628 16.58 57.34 10.17 17.44 5.91 4.66 2830 17.77 65.15 10.89 19.82 6.34 5.30 3032 18.95 73.43 11.62 22.33 6.76 5.97 3234 12.35 24.99 7.18 6.68 3436 13.07 27.78 7.60 7.43 3638 13.80 30.70 8.02 8.21 3840 14.52 33.76 8.45 9.03 4042 15.25 36.95 8.87 9.88 4244 15.98 40.28 9.29 10.77 4446 16.70 43.74 9.71 11.70 4648 17.43 47.32 10.14 12.66 4850 18.16 51.04 10.56 13.65 5055 19.97 60.89 11.61 16.29 5560 12.67 19.13 6065 13.73 22.19 6570 14.78 25.45 7075 15.84 28.92 7580 16.89 32.60 8085 17.95 36.47 8590 19.01 40.54 90* Note: Pepco manufactures nominal ½" polyethylene pipe in three different IDs.81