NETAFIM USA Landscape & Turf Product Catalog | 67 FRICTION LOSS Schedule 40 Pipe FRICTION LOSS CHARACTERISTICS PVC SCHEDULE 40 IPS PLASTIC PIPE (1120, 1220), C=150, Sizes ½” to 6”, Flows 1 to 900 GPM Flow GPM Flow GPH Velocity FPS SIZE ½” ¾” 1” 1 ¼” 1 ½” 2” 2 ½” 3” 4” 6” I.D. 0.622'' 0.824'' 1.049'' 1.380'' 1.610'' 2.067'' 2.469'' 3.068'' 4.026'' 6.065'' O.D. 0.840'' 1.050'' 1.315'' 1.660'' 1.900'' 2.375'' 2.875'' 3.500'' 4.500'' 6.625'' WALL 0.109'' 0.113'' 0.133'' 0.140'' 0.145'' 0.154'' 0.203'' 0.216'' 0.237'' 0.280'' PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss Velocity FPS PSI Loss 1 60 1.06 0.43 0.60 0.11 0.37 0.03 0.21 0.01 0.16 0.00 0.10 0.00 0.07 0.00 0.04 0.00 0.03 0.00 0.01 0.00 2 120 2.11 1.55 1.20 0.39 0.74 0.12 0.43 0.03 0.32 0.02 0.19 0.00 0.13 0.00 0.09 0.00 0.05 0.00 0.02 0.00 3 180 3.17 3.28 1.80 0.84 1.11 0.26 0.64 0.07 0.47 0.03 0.29 0.01 0.20 0.00 0.13 0.00 0.08 0.00 0.03 0.00 4 240 4.22 5.59 2.41 1.42 1.48 0.44 0.86 0.12 0.63 0.05 0.38 0.02 0.27 0.01 0.17 0.00 0.10 0.00 0.04 0.00 5 300 5.28 8.45 3.01 2.15 1.86 0.66 1.07 0.17 0.79 0.08 0.48 0.02 0.34 0.01 0.22 0.00 0.13 0.00 0.06 0.00 6 360 6.34 11.85 3.61 3.02 2.23 0.93 1.29 0.25 0.95 0.12 0.57 0.03 0.40 0.01 0.26 0.01 0.15 0.00 0.07 0.00 7 420 7.39 15.76 4.21 4.01 2.60 1.24 1.50 0.33 1.10 0.15 0.67 0.05 0.47 0.02 0.30 0.01 0.18 0.00 0.08 0.00 8 480 8.45 20.18 4.81 5.14 2.97 1.59 1.72 0.42 1.26 0.20 0.76 0.06 0.54 0.02 0.35 0.01 0.20 0.00 0.09 0.00 9 540 9.50 25.10 5.41 6.39 3.34 1.97 1.93 0.52 1.42 0.25 0.86 0.07 0.60 0.03 0.39 0.01 0.23 0.00 0.10 0.00 10 600 10.56 30.51 6.02 7.77 3.71 2.40 2.15 0.63 1.58 0.30 0.96 0.09 0.67 0.04 0.43 0.01 0.25 0.00 0.11 0.00 11 660 11.61 36.40 6.62 9.26 4.08 2.86 2.36 0.75 1.73 0.36 1.05 0.11 0.74 0.04 0.48 0.02 0.28 0.00 0.12 0.00 12 720 12.67 42.77 7.22 10.88 4.45 3.36 2.57 0.89 1.89 0.42 1.15 0.12 0.80 0.05 0.52 0.02 0.30 0.00 0.13 0.00 14 840 8.42 14.48 5.20 4.47 3.00 1.18 2.21 0.56 1.34 0.16 0.94 0.07 0.61 0.02 0.35 0.01 0.16 0.00 16 960 9.63 18.54 5.94 5.73 3.43 1.51 2.52 0.71 1.53 0.21 1.07 0.09 0.69 0.03 0.40 0.01 0.18 0.00 18 1,080 10.83 23.06 6.68 7.12 3.86 1.88 2.84 0.89 1.72 0.26 1.21 0.11 0.78 0.04 0.45 0.01 0.20 0.00 20 1,200 12.03 28.03 7.42 8.66 4.29 2.28 3.15 1.08 1.91 0.32 1.34 0.13 0.87 0.05 0.50 0.01 0.22 0.00 22 1,320 13.24 33.44 8.17 10.33 4.72 2.72 3.47 1.28 2.10 0.38 1.47 0.16 0.95 0.06 0.55 0.01 0.24 0.00 24 1,440 8.91 12.14 5.15 3.20 3.78 1.51 2.29 0.45 1.61 0.19 1.04 0.07 0.60 0.02 0.27 0.00 26 1,560 9.65 14.08 5.58 3.71 4.10 1.75 2.49 0.52 1.74 0.22 1.13 0.08 0.66 0.02 0.29 0.00 28 1,680 10.39 16.15 6.01 4.25 4.41 2.01 2.68 0.60 1.88 0.25 1.22 0.09 0.71 0.02 0.31 0.00 30 1,800 11.14 18.35 6.44 4.83 4.73 2.28 2.87 0.68 2.01 0.28 1.30 0.10 0.76 0.03 0.33 0.00 35 2,100 12.99 24.41 7.51 6.43 5.52 3.04 3.35 0.90 2.35 0.38 1.52 0.13 0.88 0.04 0.39 0.00 40 2,400 8.58 8.23 6.30 3.89 3.82 1.15 2.68 0.49 1.74 0.17 1.01 0.04 0.44 0.01 45 2,700 9.65 10.24 7.09 4.83 4.30 1.43 3.02 0.60 1.95 0.21 1.13 0.06 0.50 0.01 50 3,000 10.73 12.44 7.88 5.88 4.78 1.74 3.35 0.73 2.17 0.25 1.26 0.07 0.56 0.01 55 3,300 11.80 14.84 8.67 7.01 5.26 2.08 3.69 0.88 2.39 0.30 1.39 0.08 0.61 0.01 60 3,600 12.87 17.44 9.46 8.24 5.74 2.44 4.02 1.03 2.60 0.36 1.51 0.10 0.67 0.01 65 3,900 13.94 20.23 10.24 9.55 6.21 2.83 4.36 1.19 2.82 0.41 1.64 0.11 0.72 0.02 70 4,200 11.03 10.96 6.69 3.25 4.69 1.37 3.04 0.48 1.76 0.13 0.78 0.02 75 4,500 11.82 12.45 7.17 3.69 5.03 1.55 3.25 0.54 1.89 0.14 0.83 0.02 80 4,800 12.61 14.03 7.65 4.16 5.36 1.75 3.47 0.61 2.02 0.16 0.89 0.02 85 5,100 13.40 15.70 8.13 4.65 5.70 1.96 3.69 0.68 2.14 0.18 0.94 0.02 90 5,400 8.61 5.17 6.03 2.18 3.91 0.76 2.27 0.20 1.00 0.03 95 5,700 9.08 5.72 6.37 2.41 4.12 0.84 2.39 0.22 1.06 0.03 100 6,000 9.56 6.29 6.70 2.65 4.34 0.92 2.52 0.25 1.11 0.03 110 6,600 10.52 7.50 7.37 3.16 4.77 1.10 2.77 0.29 1.22 0.04 120 7,200 11.47 8.82 8.04 3.71 5.21 1.29 3.02 0.34 1.33 0.05 130 7,800 12.43 10.22 8.71 4.31 5.64 1.50 3.28 0.40 1.44 0.05 140 8,400 13.39 11.73 9.38 4.94 6.08 1.72 3.53 0.46 1.55 0.06 150 9,000 10.05 5.61 6.51 1.95 3.78 0.52 1.67 0.07 160 9,600 10.72 6.33 6.94 2.20 4.03 0.59 1.78 0.08 170 10,200 11.39 7.08 7.38 2.46 4.28 0.66 1.89 0.09 180 10,800 12.06 7.87 7.81 2.73 4.54 0.73 2.00 0.10 190 11,400 12.73 8.70 8.25 3.02 4.79 0.81 2.11 0.11 200 12,000 13.40 9.56 8.68 3.32 5.04 0.89 2.22 0.12 225 13,500 9.76 4.13 5.67 1.10 2.50 0.15 250 15,000 10.85 5.02 6.30 1.34 2.78 0.18 275 16,500 11.93 5.99 6.93 1.60 3.05 0.22 300 18,000 13.02 7.04 7.56 1.88 3.33 0.26 325 19,500 8.19 2.18 3.61 0.30 350 21,000 8.82 2.50 3.89 0.34 375 22,500 9.45 2.84 4.16 0.39 400 24,000 10.08 3.20 4.44 0.44 425 25,500 10.71 3.58 4.72 0.49 450 27,000 11.34 3.98 5.00 0.54 475 28,500 11.97 4.40 5.28 0.60 500 30,000 12.60 4.83 5.55 0.66 550 33,000 13.86 5.77 6.11 0.79 600 36,000 6.66 0.92 650 39,000 7.22 1.07 700 42,000 7.77 1.23 750 45,000 8.33 1.39 800 48,000 8.88 1.57 850 51,000 9.44 1.76 900 54,000 9.99 1.95 PSI LOSS OF 100 FEET OF PIPE (PSI PER 100 FEET) Note: Shaded areas of the chart indicate velocities over 5 Ft/Sec. Use with Caution. Velocities are calculated using the general equation: V = ( 0.4085 * (Q / d^2) Friction Losses are calculated using the Hazen-Williams Equation: Hf = 0.2083 * (100 / C)^1.852 * (Q^1.852 / d^4.866) V = FPS (feet per second) Hf = PSI/100 Ft. (pounds per square inch per 100 feet) C = 150 Q = GPM (gallons per minute) d = ID (inside diameter)
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