Cumberland C80M - Page 52

52 PNEG-308 Purafire
15. Examples
Figure 15C
Natural Gas (0.60) @ 14" W.C Based on 0.3" Pressure Drop (1000’s BTU/Hr)
Source: Natural Fuel Gas Code 5
th
Edition 8/28/92
Natural Gas (0.60 SP. GR.): @ 2 PSI Based on 10% Pressure Drop (1000’s BTU/Hr)
Source: Natural Fuel Gas Code 5
th
Edition 8/28/92
Pipe
Length (ft.)
Nominal Pipe Size (SCH.40)
1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4"
10 32 72 132 278 520 1050 1600 3050 4800 8500 17500
20 22 49 92 190 350 730 1100 2100 3300 5900 12000
30 18 40 73 152 285 590 890 1650 2700 4700 9700
40 15 34 63 130 245 500 760 1450 2300 4100 8300
50 14 30 56 115 215 440 670 1270 2000 3600 7400
60 12 27 50 105 195 400 610 1150 1850 3250 6800
70 11 25 46 96 180 370 560 1050 1700 3000 6200
80 11 23 43 90 170 350 530 990 1600 2800 5800
90 10 22 40 84 160 320 490 930 1500 2600 5400
100 9 21 38 79 150 305 460 870 1400 2500 5100
125 8 18 34 72 130 275 410 780 1250 2200 4500
150 8 17 31 64 120 250 380 710 1130 2000 4100
175 7 15 28 59 110 225 350 650 1050 1850 3800
200 6 14 26 55 100 210 320 610 980 1700 3500
Pipe
Length (ft.)
Nominal Pipe Size (SCH.40)
1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" 5" 6"
50 1112 2283 3421 6589 10501 18564 27181 37865 68504 110924
100 764 1569 2351 4528 7217 12759 18681 26025 47082 76237
150 614 1260 1888 3636 5796 10246 15002 20899 37809 61221
200 525 1079 1616 3112 4961 8769 12840 17887 32359 52397
250 466 956 1432 2758 4396 7772 11379 15853 28680 46439
300 422 866 1298 2499 3983 7042 10311 14364 25986 42077
400 361 741 1111 2139 3409 6027 8825 12293 22240 36012
500 320 657 984 1896 3022 5342 7821 10895 19711 31917
1000 220 457 677 1303 2077 3671 5375 7488 13547 21936
1500 177 363 543 1046 1668 2948 4317 6013 10879 17616
2000 151 310 465 896 1427 2523 3694 5147 9311 15077