| TABLE 220 | |||||||||||||
| PRESSURE LOSS | |||||||||||||
| C = 140* | TYPE "M" COPPER TUBE | ||||||||||||
| Pipe Sizes: Nominal Losses per 100 ft: lb/in2 | |||||||||||||
| gpm | 1/2 in | 3/4 in | 1 in | 1-1/4 in | 1-1/2 in | 2 in | gpm | 2 in | 2-1/2 in | 3 in | 4 in | 6 in | 8 in |
| 1 | 0.790 | 0.141 | 0.039 | 0.015 | 0.006 | 0.002 | 105 | 9.36 | 3.26 | 1.37 | 0.355 | 0.050 | 0.013 |
| 2 | 2.85 | 0.508 | .141 | .053 | .023 | .006 | 110 | 10.20 | 3.55 | 1.50 | .387 | .055 | .014 |
| 3 | 6.03 | 1.08 | .299 | .112 | .049 | .013 | 115 | 11.07 | 3.86 | 1.62 | .420 | .060 | .015 |
| 4 | 10.27 | 1.83 | .509 | .191 | .084 | .022 | 120 | 11.98 | 4.17 | 1.76 | .455 | .064 | .016 |
| 5 | 15.51 | 2.77 | 0.769 | .288 | .127 | .034 | 125 | 12.92 | 4.50 | 1.89 | .491 | .069 | .018 |
| 6 | 21.74 | 3.88 | 1.08 | .404 | .178 | .047 | 130 | 13.89 | 4.84 | 2.04 | .527 | .075 | .019 |
| 7 | 28.91 | 5.15 | 1.43 | .537 | .237 | .062 | 135 | 14.90 | 5.19 | 2.18 | .566 | .080 | .020 |
| 8 | 37.01 | 6.60 | 1.84 | .687 | .304 | .080 | 140 | 15.93 | 5.55 | 2.34 | .605 | .086 | .022 |
| 9 | 46.02 | 8.21 | 2.28 | 0.855 | .378 | .099 | 145 | 17.00 | 5.93 | 2.49 | .646 | .091 | .023 |
| 10 | 55.93 | 9.97 | 2.77 | 1.04 | 0.459 | 0.121 | 150 | 18.10 | 6.31 | 2.65 | 0.687 | 0.097 | 0.025 |
| 11 | 66.71 | 11.89 | 3.31 | 1.24 | .547 | .144 | 160 | 20.40 | 7.11 | 2.99 | .775 | .110 | .028 |
| 12 | 78.36 | 13.97 | 3.89 | 1.46 | .643 | .169 | 170 | 7.95 | 3.35 | .866 | .123 | .031 | |
| 13 | 16.20 | 4.51 | 1.69 | .745 | .196 | 180 | 8.84 | 3.72 | 0.963 | .136 | .035 | ||
| 14 | 18.58 | 5.17 | 1.94 | .855 | .225 | 190 | 10 in | 9.77 | 4.11 | 1.06 | .151 | .038 | |
| 15 | 21.11 | 5.87 | 2.20 | 0.971 | .256 | 200 | 0.015 | 10.74 | 4.52 | 1.17 | .166 | .042 | |
| 16 | 23.79 | 6.62 | 2.48 | 1.09 | .288 | 210 | .016 | 11.76 | 4.95 | 1.28 | .181 | .046 | |
| 17 | 26.61 | 7.40 | 2.77 | 1.22 | .322 | 220 | .017 | 12.81 | 5.39 | 1.40 | .198 | .050 | |
| 18 | 29.58 | 8.23 | 3.08 | 1.36 | .358 | 230 | .019 | 13.91 | 5.85 | 1.52 | .215 | .055 | |
| 19 | 2-1/2 in | 32.69 | 9.09 | 3.40 | 1.50 | .396 | 240 | .020 | 6.33 | 1.64 | .232 | .059 | |
| 20 | 0.152 | 35.95 | 10.00 | 3.74 | 1.65 | 0.435 | 250 | .022 | 6.83 | 1.77 | 0.250 | 0.064 | |
| 22 | .181 | 42.88 | 11.93 | 4.47 | 1.97 | .519 | 260 | .024 | 7.34 | 1.90 | .269 | .069 | |
| 24 | .213 | 50.37 | 14.01 | 5.25 | 2.32 | .610 | 270 | .025 | 7.87 | 2.04 | .289 | .074 | |
| 26 | .247 | 58.41 | 16.24 | 6.08 | 2.69 | .707 | 280 | .027 | 8.42 | 2.18 | .309 | .079 | |
| 28 | .283 | 66.99 | 18.63 | 6.98 | 3.08 | .811 | 290 | .029 | 12 in | 8.99 | 2.33 | .329 | .084 |
| 30 | .321 | 76.11 | 21.17 | 7.93 | 3.50 | 0.922 | 300 | 0.031 | 0.013 | 9.57 | 2.48 | .351 | .090 |
| 32 | .362 | 23.85 | 8.93 | 3.95 | 1.04 | 325 | .036 | .015 | 11.09 | 2.87 | .407 | .104 | |
| 34 | .405 | 26.68 | 9.99 | 4.41 | 1.16 | 350 | .041 | .017 | 3.30 | .467 | .119 | ||
| 36 | .450 | 29.66 | 11.11 | 4.91 | 1.29 | 375 | .046 | .019 | 3.74 | .530 | .135 | ||
| 38 | .497 | 3 in | 32.78 | 12.27 | 5.42 | 1.43 | 400 | .052 | .022 | 4.22 | 0.597 | 0.153 | |
| 40 | 0.547 | 0.230 | 36.04 | 13.50 | 5.96 | 1.57 | 425 | .059 | .024 | 4.72 | .668 | .171 | |
| 42 | .599 | .252 | 39.45 | 14.77 | 6.53 | 1.72 | 450 | .065 | .027 | 5.25 | .743 | .190 | |
| 44 | .652 | .274 | 42.99 | 16.10 | 7.11 | 1.87 | 475 | .072 | .030 | 5.80 | .821 | .210 | |
| 46 | .708 | .298 | 46.68 | 17.48 | 7.72 | 2.03 | 500 | .079 | .033 | 6.38 | 0.903 | .231 | |
| 48 | .766 | .322 | 50.50 | 18.91 | 8.35 | 2.20 | 550 | .094 | .039 | 7.60 | 1.08 | .275 | |
| 50 | .827 | .348 | 54.46 | 20.39 | 9.01 | 2.37 | 600 | 0.111 | 0.046 | 1.26 | .323 | ||
| 52 | .889 | .374 | 21.93 | 9.69 | 2.55 | 650 | .128 | .053 | 1.47 | .375 | |||
| 54 | 0.953 | .401 | 23.51 | 10.39 | 2.73 | 700 | .147 | .061 | 1.68 | .430 | |||
| 56 | 1.02 | .429 | 25.15 | 11.11 | 2.92 | 800 | .189 | .078 | 2.15 | .550 | |||
| * Note: 5% has been added to losses determined with a "C" factor of 140 as an allowance for aging. | |||||||||||||
| COPPER WATER TUBE | |||||||||||||
| Standard OD and wall thickness dimensions were used | |||||||||||||
| to determine average ID, since both dimensions have | |||||||||||||
| plus and minus tolerances. | |||||||||||||
| The value of "C" used to calculate pressure losses was | |||||||||||||
| "140." Five percent was added to the calculated losses | |||||||||||||
| as a safety factor for aging in service. The resultant | |||||||||||||
| calculated losses have proven safe over the years | |||||||||||||
| except for isolated areas with high concentration of | |||||||||||||
| chemicals in the water. | |||||||||||||
