Page 67 - 2018_IFGC

GAS PIPING INSTALLATIONS

TABLE 402.4(22) Gas Natural
POLYETHYLENE PLASTIC PIPE Inlet Pressure 2.0 psi
Pressure Drop 1.0 psi
Specific Gravity 0.60
PIPE SIZE (inch)
1
Nominal OD 1 / 2 3 / 4 1 1 1 / 4 1 / 2 2 3 4
Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11
Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682
Length (ft) Capacity in Cubic Feet of Gas per Hour
10 1,860 3,720 6,710 11,600 17,600 31,600 87,300 169,000
20 1,280 2,560 4,610 7,990 12,100 21,700 60,000 116,000
30 1,030 2,050 3,710 6,420 9,690 17,400 48,200 93,200
40 878 1,760 3,170 5,490 8,300 14,900 41,200 79,700
50 778 1,560 2,810 4,870 7,350 13,200 36,600 70,700
60 705 1,410 2,550 4,410 6,660 12,000 33,100 64,000
70 649 1,300 2,340 4,060 6,130 11,000 30,500 58,900
80 603 1,210 2,180 3,780 5,700 10,200 28,300 54,800
90 566 1,130 2,050 3,540 5,350 9,610 26,600 51,400
100 535 1,070 1,930 3,350 5,050 9,080 25,100 48,600
125 474 949 1,710 2,970 4,480 8,050 22,300 43,000
150 429 860 1,550 2,690 4,060 7,290 20,200 39,000
175 395 791 1,430 2,470 3,730 6,710 18,600 35,900
200 368 736 1,330 2,300 3,470 6,240 17,300 33,400
250 326 652 1,180 2,040 3,080 5,530 15,300 29,600
300 295 591 1,070 1,850 2,790 5,010 13,900 26,800
350 272 544 981 1,700 2,570 4,610 12,800 24,700
400 253 506 913 1,580 2,390 4,290 11,900 22,900
450 237 475 856 1,480 2,240 4,020 11,100 21,500
500 224 448 809 1,400 2,120 3,800 10,500 20,300
550 213 426 768 1,330 2,010 3,610 9,990 19,300
600 203 406 733 1,270 1,920 3,440 9,530 18,400
650 194 389 702 1,220 1,840 3,300 9,130 17,600
700 187 374 674 1,170 1,760 3,170 8,770 16,900
750 180 360 649 1,130 1,700 3,050 8,450 16,300
800 174 348 627 1,090 1,640 2,950 8,160 15,800
850 168 336 607 1,050 1,590 2,850 7,890 15,300
900 163 326 588 1,020 1,540 2,770 7,650 14,800
950 158 317 572 990 1,500 2,690 7,430 14,400
1,000 154 308 556 963 1,450 2,610 7,230 14,000
1,100 146 293 528 915 1,380 2,480 6,870 13,300
1,200 139 279 504 873 1,320 2,370 6,550 12,700
1,300 134 267 482 836 1,260 2,270 6,270 12,100
1,400 128 257 463 803 1,210 2,180 6,030 11,600
1,500 124 247 446 773 1,170 2,100 5,810 11,200
1,600 119 239 431 747 1,130 2,030 5,610 10,800
1,700 115 231 417 723 1,090 1,960 5,430 10,500
1,800 112 224 404 701 1,060 1,900 5,260 10,200
1,900 109 218 393 680 1,030 1,850 5,110 9,900
2,000 106 212 382 662 1,000 1,800 4,970 9,600
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa, 1-inch water column = 0.2488 kPa,
3
1 British thermal unit per hour = 0.2931 W, 1 cubic foot per hour = 0.0283 m /h, 1 degree = 0.01745 rad.
Note: Table entries have been rounded to three significant digits.

54 2018 INTERNATIONAL FUEL GAS CODE ®
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