Document B8x0Lyp18Q7byR2Qk78Q5EGQL

HEATING VENTILATINC AIR CONDITIONING CUIDE 1942 Table 1. Equivalent Length of Pipe vs. Pressure Head at Various Friction Losses Steel Pipe Head Loss, Ft Milinch Friction Loss Per Foot ok Pipe 720 480 360 300 240 180 160 144 120 96 90 80 70 60 Equivalent Length or Pipe in Feet 2 2M 3 3H 4 5 5H 6 6H 7H 8 &X 9 9H 10 10K 11 1121H 33 42 60 50 66 62 84 75 100 80 100 133 100 125 167 120 150 200 150 188 225 167 20* 25C 20C 25> 30C 251) 315 37 27C) 33i 40C 3a) 37* 45C 34C 428 51C 400 500 600 59 67 75 87 117 100 133 112 149 140 175 233 160 200 266 180 225 300 263 300 338 291 333 374 35G 400 45C 437 50C 562 463 533 593 525 600 675 593 685 758 700 800 900 S3 02 100 125 167 137 283 150 200 200 250 333 220 275 366 240 300 400 375 413 450 416 457 500 500 550 600 625 687 750 666 713 800 750 825 860 923 1000 1100 900 1030 1200 108 116 124 162 217 175 233 187 249 260 325 433 280 350 465 ZOO 375 500 488 525 563 540 580 623 650 700 750 812 875 937 843 975 1088 933 973 1050 1125 1200 1252 1300 1400 1500 133 142 150 200 266 212 283 225 300 320 400 533 340 425 566 360 450 600 600 638 675 666 706 750 800 850 900 1000 1062 1125 1070 1103 1200 1200 1275 1350 1370 1417 1540 1600 1700 1800 159 167 176 237 317 250 333 262 349 380 400 475 633 500 666 420 525 700 713 750 788 789 950 1187 1233 833 1000 1250 1333 872 1050 1312 1363 1425 1577 1500 1715 1575 1737 1900 2000 2100 183' 275 366 102 287 383 200 300 400 440 550 733 460 575 766 480 600 800 825 863 900 916 955 1000 1100 1150 1200 1375 1437 1500 1466 1533 1600 1650 1725 1800 1885 1897 2030 2200 2300 2400 Nominal Pips Size, In. Capacity op Pipes Mbh With a 20 F Drop A Carrying Capacity, B <=> Velocity, inches Per second Fnction Head of Pipe Milipches per foot 720 480 360 300 240 180 160 144 120 96 90 SO 70 60 A XB 20 27 16 22 14 19 13 17 U 16 10 18 6 12 9 11 8 to 7 9 7 9 6 8 6 8 5 7 A HB 43 SS 35 26 30 27 28 21 24 18 21 16 19 16 18 U 17 18 15 11 14 11 13 10 12 9 11 9 A 1B 85 89 70 82 60 27 54 26 48 22 41 19 39 18 36 17 33 - 30 16 13 28 18 27 18 25 11 23 10 A IX B 180 145 125 115 48 89 88 SO 98 27 85 28 80 21 75 20 68 19 60 16 58 16 55 16 51 47 14 * 12 A \x b 285 54 230 44 165 88 180 84 160 so 135 26 125 24 120 28 110 21 96 19 92 18 88 17 82 16 75 14 A 2B 540 64 435 62 370 46 340 40 300 86 255 SO 240 29 230 27 205 24 180 22 175 21 165 20 150 19 140 17 A 2H B 890 74 720 . 60 610 60 550 46 480 41 420 86 390 88 370 81 330 28 300 24 280 n 270 22 250 21 230 19 A 3B 1650 1340 1130 1000 88 70 60 54 600 48 760 41 720 88 670 88 600 88 540 29 520 28 480 26 450 24 410 22 A 3M B 2500 99 2000 78 1700 66 1500 60 1350 64 1150 46 1080 48 1000 40 900 86 BOO 32 760 81 720 29 670 27 620 26 A 4B 3500 no 2800 87 2400 74 2200 66 1900 68 1600 60 1520 47 1440 46 1300 40 1150 36 1100 84 1050 82 960 SO 880 27 5 ' A B ._ ^_ 7000 182 5600 106 1700 90 1300 80 3700 70 3200 60 3000 66 2750 68 2500 48 2200 42 2100 41 2000 88 1800 86 1700 82 6 A . 12.000 B 166 )200 124 7800 104 rooo 94 3200 82 3200 69 1800 64 1600 61 1100 66 3600 48 3500 46 3300 44 3000 41 2800 87 > KSSt i.lor ' 312 CHAPTER 16. HOT WATER HEATING SYSTEMS AND PIPINC Table 2. Equivalent Length of Tube vs. Pressure Head at Various Friction Losses Type L Copper Tube Milinch Friction Loss per Foot op Tube Head Loss, 600 j 480 720 360 300 240 ISO 150 120 90 75 60 Equivaijjnt Lb ncth of Tube in Feet (Longbs T ClStCLrrr) 2 2H 3 3H 4 4M 5 sx 6 6H 7 7H 8 8M 9 9K 10 10H 11 MX 12 Nominal Tube Size. In. A HB A XB A XB A KB A 1B A IK B A IX B A 2B A 2X B A 3B A 3X B A 4B 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 no 120 130 140 150 160 170 180 190 200 210 220 230 240 50 63 75 83 100 113 125 138 150 163 175 188 200 213 225 238 250 263 275 288 300 67 83 100 117 133 150 167 183 200 217 233 250 267 283 300 * 317 333 350 367 383 400 SO 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525 550 575 600 133 167 200 233 267 300 333 367 400 433 467 500 533 567 600 633 667 700 733 767 800 160 200 240 280 320 360 400 440 480 520 660 600 640 680 720 760 800 840 880 920 960 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 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* Droi A = Carrying Capacity, B - Velocity, inches per sect md Friction Head of Pipe MiUnches per Foot 720 600 480 360 10 27 98 24 21 6.8 18 20 S3 18 80 16 25 13.5 21 36 57 30 34 26 SO 22.1 24 51 48 46 38 40 88 34 27 104 94 82 70 48 46 30 34 185 169 149 125 66 61 46 1 30 300 270 235 200 62 67 61 48 625 76 560 68 495 69 420 61 1130 1010 90 80 890 69 750 68 1840 98 1650 T450 90 80 1210 66 275C 110 2480 100 2170 88 1840 76 39W 12C 350* 10b 31a 96 2600 88 300 6.2 16.6 12 19 20 21 31 24 63 SO 112 85 180 89 375 47 680 49 1100 60 1650 66 2350 73 240 5.4 14 10.8 17 17.8 19 28 21 56 25 100 so 160 36 335 ' 42 600 47 980 62 1450 67 2090 68 180 4.6 18 9 16 15 17 23.2 19 47 22 84 26 134 80 280 86 500 48 820 47 1210 61 1760 66 150 4 11 8 IS 13.1 16 20.5 17 42 19 75 22 120 25 250 SB 450 37 740 42 1100 45 1580 49 120 3.6 10 7 12 11.8 13 18.1 14 37 17 66 19 105 22 200 27 395 S3 650 86 980 40 1390 44 90 3 8.6 6 to 9.9 11 15.3 12 32 14-6 56 17 90 19 188 22 335 26 550 SO 820 85 1180 37 320 400 480 560 640 720 800 880 960 1040 1120 1200 1280 1360 1440 1520 1600 1680 1760 1840 1920 75 2.8 8 5.4 0 9 10 13.9 11.6 28 IS 50 16 81 17 170 20 305 23 490 27 740 30 1080 34 400 500 600 700 800 900 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 13 71 16 150 18 270 21 420 23 650 26 950 29 temperature c