Table A-2. Friction loss in plastic pipe. Nominal Pipe Size Flow 2 (Feet/100ft of pipe) 3.24 4 5.52 5 8.34 6 11.68 2.88 7 15.53 3.83 Velocities in this area are below 2 fps. 8 19.89 4.91 9 24.73 6.10 10 30.05 7.41 II 35.84 8.84 2.50 12 42.10 10.39 2.99 13 48.82 12.04 3.51 14 56.00 13.81 4.07 15 63.63 15.69 4.66 1.92 16 71.69 17.68 5.30 2.18 17 80.20 19.78 5.97 2.46 18 21.99 6.68 2.75 19 24.30 7.42 3.06 20 26.72 8.21 3.38 9.02 3.72 49.15 20.24 25 40.38 30 56.57 28.36 37.72 35 40 45 1.39 50 1.94 60 2.58 70 3.30 4.11 4.99 13.63 5.62 19.10 7.87 7.00 0.97 9.31 1.29 25.41 10.46 32.53 13.40 40.45 16.66 11.91 1.66 80 Velocities in theses areas Note: Table is based on - Hazen-Williams fonuula: h = 0.002082L x (100/C)L"x (gpml.85 where: h = feet of head, L = length in feet, C= Friction factor from ) Williams (145 for plastic pipe), gpm = gallons per minute, d= nominal pipe size. Table A-3. Friction losses through plastic fittings in tenns of equivalent lengths of pipe. (Sump and Sewage Pump Manufacturers, 1998) ---------------Nominal size fitting and pipe ------------------------ 1-1/4 l -1/2 2 2-1/2 3 4 Type ofFittiug
Table A-2. Friction loss in plastic pipe. Flow Nominal Pipe Size 2 3.24 4 5.52 5 8.34 6 11.68 2.88 7 15.53 3.83 8 19.89 4.91 9 24.73 6.10 10 30.05 7.41 II 35.84 8.84 12 42.10 10.39 13 48.82 12.04 14 56.00 13.81 15 63.63 15.69 16 71.69 17.68 17 80.20 19.78 18 21.99 19 24.30 20 26.72 (Feet/100ft of pipe) Velocities in this area are below 2 fps. 2.50 2.99 3.51 4.07 4.66 1.92 5.30 2.18 5.97 2.46 6.68 2.75 7.42 3.06 8.21 3.38 9.02 3.72 25 40.38 30 56.57 35 40 45 50 60 70 13.63 5.62 19.10 7.87 25.41 10.46 32.53 13.40 40.45 16.66 49.15 20.24 28.36 37.72 1.39 1.94 2.58 3.30 4.11 4.99 7.00 0.97 9.31 1.29 80 Velocities in theses areas 11.91 1.66 Note: Table is based on - Hazen-Williams fonuula: h = 0.002082L x (100/C)L"x (gpml.85 ) where: h = feet of head, L = length in feet, C= Friction factor from Williams (145 for plastic pipe), gpm = gallons per minute, d= nominal pipe size. Table A-3. Friction losses through plastic fittings in tenns of equivalent lengths of pipe. (Sump and Sewage Pump Manufacturers, 1998) Type ofFittiug ---------------Nominal size fitting and pipe ------------------------ 1-1/4 l -1/2 2 2-1/2 3 4
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