Document qm4eM8Xknq9NpO0r3zqDyKN1G

HEATING VENTILATING AIR CONDITIONING CUIDE 1941 Table 1. Equivalent Length of Pipe vs. Pressure Head at Various Friction Losses Steel Pipe Head Loss, Ft Milinch Friction Loss Per Foot of Pipe 720 480 360 300 240 180 160 144 120 96 90 80 70 60 Equivalent Length of Pipe in Feet 2 2H 3 3M 4 *H 5 5H 6 6*4 . 7 ?K 8 8M 9 9)4 10 10)4 11 11)4 12 33 50 66 80 100 133 150 167 200 250 270 300 340 400 42 62 84 100 125 167 188 208 250 312 333 375 428 500 50 75 100 120 150 200 225 250 300 375 400 450 510 600 59 87 117 140 175 233 263 291 350 437 463 525 593 700 67 100 133 160 200 266 300 333 400 500 533 600 685 800 75 112 149 180 225 300 338 374 450 562 593 675 758 900 83 125 167 200 250 333 375 416 .500 625 666 750 860 1000 92 137 183 220 275 366 413 457 550 687 713 825 923 1100 100 150 200 240 300 400 450 500 600 750 800 900 1030 1200 108 162 217 260 325 433 488 540 650 812 843 975 1088 1300 116 175 233 280 350 465 525 580 700 875 933 1050 1200 1400 124 187 249 300 375 500 563 623 750 937 973 1125 1252 1500 133 200 266 320 400 533 600 666 800 1000 1070 1200 1370 1600 142 212 283 340 425 566 638 706 850 1062 1103 1275 1417 1700 150 225 300 360 450 600 675 750 900 1125 1200 1350 1540 1800 159 237 317 380 475 633 713 789 950 1187 1233 1425 1577 1900 167 250 333 400 500 666 750 833 1000 1250 1333 1500 1715 2000 175 262 349 420 525 700 788 872 1050 1312 1363 1575 1737 2100 183 275 366 440 550 733 825 916 1100 1375 1466 1650 1885 2200 192 287 383 460 575 766 863 955 1150 1437 1533 1725 1897 2300 200 300 400 480 600 800 900 1000 1200 1500 1600 1800 2030 2400 Capacity of Pipes Mbh With a 20 F Drop A = Carrying Capacity, B = Velocity, inches per second Pipe Size, Friction Head of Pipe Mihnches per foot In. 720 430 360 300 240 180 160 144 120 96 90 80 70 60 A MB A HB A 1B 20 16 14 13 11 10 9 9 8 7 7 6 6 27 88 19 17 16 IS 18 11 10 9 9 8 8 43 35 30 27 24 21 19 18 17 15 14 13 12 S3 86 83 81 18 16 15 14 13 11 11 to 9 85 70 60 54 48 41 39 36 33 30 28 27 25 39 38 87 85 88 19 18 17 16 IS 13 18 11 5 7 11 9 23 10 A IK B A IK B *A 2B A 2K B A 3 A 3H B A 4 A 5 A 6 ISO 145 125 115 98 85 80 75 68 60 58 55 51 4S 39 S3 SO 87 83 81 80 19 16 16 16 14 47 18 285 230 195 180 160 135 125 120 110 96 92 88 82 64 44 38 34 SO 86 S4 83 81 19 18 17 15 75 14 540 435 370 340 300 255 240 230 205 180 175 165 150 64 68 46 0 36 SO 89 87 84 88 81 80 19 140 17 890 720 610 550 480 420 390 370 330 300 280 270 250 230 74 60 60 46 41 35 S3 31 88 84 84 88 81 19 1650 1340 1130 1000 900 760 720 670 600 540 520 480 450 410 88 70 60 64 48 41 38 36 S3 89 88 86 84 88 2500 2000 1700 1500 1350 1150 1080 1000 900 800 760 720 670 620 99 78 66 60 64 46 45 40 36 38 .31 89 87 85 3500 2800 2400 2200 1900 1600 1520 1440 1300 1150 1100 1050 960 880 110 87 74 66 68 60 47 46 40 35 34 38 SO 87 7000 5600 4700 4300 3700 3200 3000 2750 2500 2200 2100 2000 1800 1700 138 106 90 80 70 60 66 63 48 48 41 38 35 38 12.000 9200 7800 7000 6200 5200 4800 4600 4100 3600 3500 3300 3000 2800 168 184 104 94 88 69 64 61 66 . 0 46 -44 41 37 For other temperature drops the pipe capacities may be changed correspondingly. For example, with.. a temperature drop of 30 F, the capacities shown in this table are to be multiplied by 1.5. 294 CHAPTER 15. HOT WATER HEATING SYSTEMS AND PIPING Table 2. Equivalent Length of Tube vs. Pressure Head at Various Friction Losses Type L Copper Tube Milinch Friction Loss per Foot of Tube Head Loss, 720 600 480 360 300 240 ISO 150 120 90 75 60 2 2K 3 ~ ziT 4 4H 5 5H 6 -_6K 7 7K 8 8H 9 9M 10 iom n liM 12 Nominal Tube Size. In. A HB A XB A HB A XB A 1B A 1M B A 1M B A 2 A 2H B A 3B A 3H A 4 EQUIVALENT LENGTH OF TUBE IN FEET (LONGEST ClRCt IT) 33 42 50 58 67 75 83 92 100 108 117 125 133 142 150 159 167 175 183 192 200 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 50 63 75 88 100 113 125 138 150 163 175 188 200 213 225 238 250 263 275 288 300 67 83 100 117 133 150 167 183 200 217 233 250 267 283 300 317 333 350 367 383 400 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525 550 575 600 133 167 200 233 267 300 333 367 400 433 467 500 533 567 600 633 667 700 733 767 800 160 200 240 280 320 360 400 440 ' 480 520 560 600 640 680 720 760 800 840 880 920 960 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 267 333 400 467 533 600 667 733 800 867 933 1000 1067 1133 1200 1267 1333 1400 1467 1533 1600 Capacity of Tubes Mbh With a 20 F* Drop A = Carrying Capacity, B = Velocity, inches per second Friction Head of Pipe Milinches per Foot 720 600 480 360 10 9 8 6.8 87 24 21 18 20 18 16 13.5 S3 SO 26 21 36 30 26 22.1 37 34 SO 84 51 46 40 34 42 38 33 87 104 94 82 70 48 45 39 34 185 169 149 125 66 61 46 39 300 270 235 200 62 67 61 43 625 560 495 420 76 68 69 61 1130 1010 890 750 90 80 69 68 1840 1650 1450 1210 98 90 80 66 275C 248C 2170 1840 11C 10C 85 75 390C 350 310C 2600 18C 101? 96 83 300 6.2 16.5 12 19 20 81 31 84 63 SO 112 36 180 39 375 47 680 49 1100 69 1650 66 2350 75 240 5.4 14 10.8 17 17.8 19 28 81 56 85 100 SO 160 36 335 48 600 47 980 62 1450 57 2090 63 ISO 4.6 13 9 16 15 17 23.2 19 47 88 84 25 134 SO 280 36 500 48 820 47 1210 61 1760 65 150 120 4 3.6 11 10 87 13 12 13.1 15 11.8 IS 20.5 17 18.1 14 42 37 19 17 75 66 82 19 120 105 86 82 250 200 32 27 450 395 37 S3 740 650 43 36 1100 43 980 40 1580 1390 49 '~ 44 90 3 8.5 6 10 9.9 11 15.3 12 32 14-5 56 17 90 19 188 22 335 86 550 SO 820 35 1180 57 320 400 480 560 640 720 800 880 960 1040 1120 1200 1280 1360 1440 1520 1600 1680 1760 1840 1920 75 2.8 8 5.4 9 9 10 13.9 11.5 28 IS 50 16 81 17 170 80 305 23 490 27 740 SO 1080 54 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 60 2.4 7 4.7 8 7.9 9 12.1 10 25 12 44 IS 71 15 150 18 270 21 420 23 650 86 950 89 295