| Table Losses same for all controlled OD | |||||||||||||
| Schedule 40 thermoplastic pipe. For PE pipe, | |||||||||||||
| convert losses to equivalent of C = 140. | PRESSURE LOSS | ||||||||||||
| C = 150 | SCHEDULE 40 PVC PIPE | ||||||||||||
| 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 | 0.503 | 0.123 | 0.037 | 0.010 | 0.004 | 0.001 | 105 | 7.16 | 3.02 | 1.04 | 0.276 | 0.037 | 0.010 |
| 2 | 1.81 | .444 | .134 | .034 | .016 | .005 | 110 | 3.29 | 1.14 | .300 | .041 | .011 | |
| 3 | 3.84 | 0.940 | .283 | .073 | .034 | .010 | 115 | 3.57 | 1.23 | .326 | .044 | .012 | |
| 4 | 6.54 | 1.60 | .482 | .124 | .058 | .017 | 120 | 3.86 | 1.33 | .353 | .048 | .013 | |
| 5 | 9.88 | 2.42 | 0.728 | .187 | .088 | .026 | 125 | 4.16 | 1.44 | .381 | .051 | .013 | |
| 6 | 13.85 | 3.39 | 1.02 | .263 | .123 | .036 | 130 | 4.48 | 1.55 | .409 | .055 | .015 | |
| 7 | 18.42 | 4.51 | 1.36 | .349 | .163 | .048 | 135 | 4.80 | 1.66 | .439 | .059 | .016 | |
| 8 | 23.58 | 5.77 | 1.74 | .447 | .209 | .061 | 140 | 5.14 | 1.77 | .469 | .064 | .017 | |
| 9 | 29.32 | 7.17 | 2.16 | .556 | .260 | .076 | 145 | 5.48 | 1.89 | .501 | .068 | .018 | |
| 10 | 8.72 | 2.62 | 0.676 | 0.316 | 0.092 | 150 | 2.02 | 0.533 | 0.072 | 0.019 | |||
| 11 | 10.40 | 3.13 | .806 | .377 | .110 | 160 | 2.27 | .601 | .081 | .021 | |||
| 12 | 12.22 | 3.68 | 0.947 | .443 | .129 | 170 | 2.54 | .672 | .091 | .024 | |||
| 13 | 14.17 | 4.26 | 1.10 | .513 | .150 | 180 | 2.82 | .747 | .101 | .026 | |||
| 14 | 16.25 | 4.89 | 1.26 | .589 | .172 | 190 | 10 in | 3.12 | .826 | .112 | .029 | ||
| 15 | 18.46 | 5.56 | 1.43 | .669 | .196 | 200 | 0.011 | 3.43 | .908 | .123 | .032 | ||
| 16 | 20.80 | 6.26 | 1.61 | .754 | .220 | 210 | .012 | 3.76 | 0.994 | .134 | .035 | ||
| 17 | 7.01 | 1.80 | .843 | .247 | 220 | .013 | 4.09 | 1.08 | .147 | .038 | |||
| 18 | 7.79 | 2.00 | .937 | 0.274 | 230 | .014 | 4.45 | 1.18 | .159 | .042 | |||
| 19 | 8.61 | 2.22 | 1.04 | .303 | 240 | .015 | 1.27 | .172 | .045 | ||||
| 20 | 9.46 | 2.44 | 1.14 | .333 | 250 | .016 | 1.37 | 0.186 | 0.049 | ||||
| 22 | 11.29 | 2.91 | 1.36 | .397 | 260 | .017 | 1.48 | .200 | .052 | ||||
| 24 | 13.26 | 3.41 | 1.60 | .467 | 270 | .018 | 1.58 | .214 | .056 | ||||
| 26 | 15.37 | 3.96 | 1.85 | .541 | 280 | .020 | 1.69 | .229 | .060 | ||||
| 28 | 2-1/2 in | 4.54 | 2.12 | .621 | 290 | .021 | 12 in | 1.81 | .244 | .064 | |||
| 30 | 0.297 | 5.16 | 2.41 | .705 | 300 | 0.022 | 0.010 | 1.92 | .260 | .068 | |||
| 32 | .335 | 5.81 | 2.72 | .795 | 325 | .026 | .011 | 2.23 | .302 | .079 | |||
| 34 | .375 | 6.50 | 3.04 | .889 | 350 | .030 | .013 | 2.56 | .346 | .091 | |||
| 36 | .416 | 7.23 | 3.38 | 0.988 | 375 | .034 | .014 | 2.91 | .393 | .103 | |||
| 38 | .460 | 3 in | 7.99 | 3.73 | 1.09 | 400 | .038 | .016 | 3.27 | .443 | .116 | ||
| 40 | .506 | 0.175 | 8.78 | 4.11 | 1.20 | 425 | .043 | .018 | .495 | .130 | |||
| 42 | .554 | .191 | 9.61 | 4.49 | 1.31 | 450 | .048 | .020 | 0.551 | 0.144 | |||
| 44 | .604 | .208 | 10.47 | 4.90 | 1.43 | 475 | .053 | .022 | .609 | .160 | |||
| 46 | .655 | .226 | 11.37 | 5.32 | 1.56 | 500 | .058 | .025 | .669 | .175 | |||
| 48 | .709 | .245 | 4 in | 5.75 | 1.68 | 550 | .069 | .029 | .798 | .209 | |||
| 50 | 0.765 | 0.264 | 0.070 | 6.20 | 1.81 | 600 | 0.081 | 0.035 | 0.938 | .246 | |||
| 52 | .822 | .284 | .075 | 6.67 | 1.95 | 650 | .094 | .040 | 1.09 | .285 | |||
| 54 | .882 | .305 | .081 | 7.15 | 2.09 | 700 | .108 | .046 | 1.25 | .327 | |||
| 56 | 0.943 | .326 | .086 | 7.65 | 2.24 | 800 | .138 | .059 | 1.60 | .418 | |||
| 58 | 1.01 | .348 | .092 | 8.16 | 2.39 | 900 | .172 | .073 | 1.99 | .520 | |||
| 60 | 1.07 | .370 | .098 | 8.69 | 2.54 | 1000 | .208 | .089 | .632 | ||||
| 62 | 1.14 | .393 | .104 | 9.24 | 2.70 | 1100 | .249 | .106 | .754 | ||||
| POLY VINYL CHLORIDE (PVC) PLASTIC PIPE | |||||||||||||
| Pressure loss tables are provided for both SDR-PR and | |||||||||||||
| Schedule Wall PVC pipe. | |||||||||||||
| Unlike many pipes, the standard wall thickness of PVC | |||||||||||||
| pipe has a plus tolerance only, ranging from 0.020 in to | |||||||||||||
| 0.090 in. Many pressure loss tables use the standard | |||||||||||||
| minimum wall (without tolerances) for computation purposes. | |||||||||||||
| Since maufacturing processes preclude | |||||||||||||
| achievement of this thickness, most all PVC pipe will | |||||||||||||
| have a thicker wall and consequently a smaller ID. | |||||||||||||
| Accordingly, use of the standard wall to prepare loss | |||||||||||||
| tables is not realistic. The loss tables here use | |||||||||||||
| a wall thickness which includes one-half of the tolerances. | |||||||||||||
| This results in a more realistic average ID. This | |||||||||||||
| method of determining ID for calculation of pressure | |||||||||||||
| losses is recommended by the Plastic Pipe Institute (PPI). | |||||||||||||
| Caution should be exercised to control velocities in PVC | |||||||||||||
| pipe to avoid damage from pressure surging (water hammer). | |||||||||||||
| Note: PVC pressure loss tables can be used for any | |||||||||||||
| controlled OD thermoplastic pipe of the same SDR or | |||||||||||||
| Schedule number. | |||||||||||||
