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Uniform Codes Gas Line Sizing Chart

 Parker Boiler

Table No.22-D - Size of Gas Piping
Maximum Delivery Capacity in Cubic Feet of Gas Per Hour of I.P.S. Pipe Carrying Natural Gas of 0.60 Specific Gravity Based on 0.5 - inch Water Column Pressure Drop

 

(Length in Feet)
Pipe Size,.
(in) 		 10' 20' 30' 40' 50' 60' 70' 80' 90 100' 125'
1/2 174 119 96 82 73 66 61 56 53 50 44
3/4 363 249 200 171 152 138 127 118 111 104 93
1 684 470 377 323 286 259 239 222 208 197 174
1 1/4 1,404 965 775 663 588 532 490 456 428 404 358
1 1/2 2,103 1,445 1,161 993 880 798 734 683 641 605 536
2 4,050 2,784 2,235 1,913 1,696 1,536 1,413 1,315 1,234 1,165 1,033
2 1/2 6,455 4,437 3,563 3,049 2,703 2,449 2,253 2,096 1,966 1,857 1,646
3 11,412 7,843 6,299 5,391 4,778 4,329 3,983 3,983 3,476 3,284 2,910
3 1/2 16,709 11,484 9,222 7,893 6,995 6,338 5,831 5,425 5,090 4,808 4,261
4 23,277 15,998 12,847 10,995 9,745 8,830 8,123 7,557 7,090 6,698 5,936
150' 200' 250' 300' 350' 400' 450' 500' 550' 600
1/2 40 34 30 28 25 24 22 21 20 19
3/4 84 72 64 58 53 49 46 44 42 40
1 158 135 120 109 100 93 87 82 78 75
1 1/4 324 278 246 223 205 191 179 169 161 153
1 1/2 486 416 369 334 309 286 268 253 241 230
2 936 801 710 643 592 551 517 488 463 442
2 1/2 1,492 1,277 1,131 1,025 943 877 823 778 739 705
3 2,637 2,257 2,000 1,812 1,667 1,551 1,455 1,375 1,306 1,246
3 1/2 3,861 3,304 2,929 2,654 2,441 2,271 2,131 2,013 1,912 1,824
4 5,378 4,603 4,080 3,697 3,401 3,164 2,968 2,804 2,804 2,541


Table No. 22-F - Medium Pressure Natural Gas System For Sizing Gas Piping Systems Carrying Gas of 0.60 Specific Grtavity Capacity of Pipes of Different Diameters and Lengths in Cubic Feet per Hour for Gas Pressure of 3.0 psi with a Drop to 1.5 psi

Length of Pipe (in feet)
Pipe Size,.
(in) 		 50' 100' 150' 200' 250' 300' 350' 400 450' 500' 550' 600'
1/2 857 589 473 405 359 325 299 278 261 247 234 224
3/4 1,793 1,232 990 847 751 680 626 582 546 516 490 467
1 3,377 2,321 864 1,595 1,414 1,281 1,179 1,096 1,029 972 923 881
1 1/4 6,934 4,766 3,827 3,275 2,903 2,603 2,420 2,251 2,112 1,995 1,895 1,808
1 1/2 10,389 7,140 5,734 4,908 4,349 3,941 3,626 3,373 3,165 2,989 2,839 2,709
2 20,008 13,752 11,043 9,451 8,377 7,590 6,983 6,496 6,095 5,757 5,468 5,216
2 1/2 31,890 21,918 17,601 15,064 13,351 12,097 11,129 10,353 9,714 9,176 8,175 8,314
3 56,376 38,747 31,115 26,631 23,602 21,385 19,674 18,303 17,173 16,222 15,406 14,698
650' 700' 750' 800' 850' 900' 950' 1000' 1100' 1200' 1300' 1400'
1/2 214 206 198 191 185 180 174 170 161 154 147 141
3/4 448 430 414 400 387 375 365 255 337 321 308 296
1 843 810 780 754 729 707 687 668 634 605 580 557
1 1/4 1,731 1,663 1,602 1,547 1,452 1,452 1,410 1,371 1,302 1,242 1,190 1,143
1 1/2 2,594 2,492 2,401 2,318 2,175 2,175 2,112 2,055 1,951 1,862 1,783 1,713
2 4,995 4,799 4,465 4,465 4,189 4,187 4,068 3,957 3,758 3,585 3,433 3,298
2 1/2 7,962 7,649 7,116 7,116 6,677 6,677 6,484 6,307 5,990 5,714 5,472 5,257
3 14,075 13,522 12,580 12,580 11,803 11,803 11,463 11,149 10,589 10,102 9,674 9,294
4 28,709 27,581 25,658 25,658 23,380 24,074 23,380 22,741 21,598 20,605 19,731 18,956


Table No. 22-G - Medium Pressure Natural Gas System For Sizing Gas Piping Systems Carrying Gas of 0.60 Specific Gravity Capacity of Pipes of Different Diameters and Lengths in Cubic Feet per Hour for Gas Pressure of 5.0 psi with a drop to 1.5 psi

Length of Pipe (in feet)
Pipe Size,.
(in) 		 50' 100' 150' 200' 250' 300' 350' 400 450' 500' 550' 600'
1/2 1,399 961 473 405 359 531 488 454 426 402 382 365
3/4 2,925 2,010 990 847 751 1,109 1,021 949 891 842 799 762
1 5,509 3,786 867 1,595 1,414 2,090 1,923 1,678 1,678 1,585 1,506 1,436
1 1/4 11,311 7,774 1,595 3,275 2,903 4,291 3,947 3,445 3,255 3,255 3,091 2,949
1 1/2 16,947 11,648 3,827 4,908 4,908 6,429 5,914 5,162 4,876 4,876 4,631 4,418
2 32,638 22,432 5,734 9,451 9,451 12,381 11,390 9,942 9,391 9,391 8,919 8,509
2 1/2 52,020 35,753 11,043 15,064 15,064 19,733 18,154 15,846 14,968 14,968 14,216 13,562
3 91,962 63,205 17,601 26,631 26,631 34,884 32,093 28,013 26,461 26,461 25,131 23,976
650' 700' 750' 800' 850' 900' 950' 1000' 1100' 1200' 1300' 1400'
1/2 349 335 323 312 302 293 284 277 263 251 240 231
3/4 730 701 676 632 632 612 595 578 524 524 502 482
1 1,375 1,321 1,273 1,229 1,190 1,153 1,120 1,089 1,035 987 945 908
1 1/4 2,824 2,713 2,614 2,524 2,442 2,368 2,300 2,237 2,124 2,027 1,941 1,865
1 1/2 4,231 4,065 3,916 3,781 3,659 3,548 3,446 3,351 3,183 3,037 2,908 2,794
2 8,149 7,828 7,542 7,283 7,048 6,833 6,636 6,455 6,130 5,848 5,600 5,380
2 1/2 12,988 12,477 12,020 11,608 11,233 10,891 10,288 10,288 9,771 9,321 8,926 8,575
3 22,960 22,057 21,249 20,520 19,858 19,253 18,698 18,187 17,273 16,478 15,780 15,160
4 46,830 44,990 43,342 41,855 40,504 39,271 38,139 37,095 35,231 33,231 32,186 30,921


Table No. 22 - E - Maximum Capacity of pipe in thousands of Btu/h Of Undiluated Liquefied Petroleum
Gases. For Distribution Pressure of 11-inch Water Column, pressure drop of 0.5 - inch Water Column


Nominal Iron Pipe
Size (In inches)		 Length of Pipe (In Feet)
10 20 30 40 50 60 70 80 90 100 125 150 200
1/2 275 187 152 129 114 103 96 89 83 78 69 63 55
3/4 567 393 315 267 237 217 196 185 173 162 146 132 112
1 1071 732 590 504 448 409 378 346 322 307 275 252 213
1 1/4 2205 1496 1212 1039 913 834 771 724 677 630 567 511 440
1 1/2 3307 2299 1858 1559 1417 1275 1181 1086 1023 976 866 787 675
2 6221 43331 3465 2992 2646 2394 2205 2047 1921 1811 1606 1496 1260


Table No.22-H - For Propane Gas Pressure of 10.0 psi with Maximum Pressure Drop of 3.0 psi
Maximum Delivery Capacity in Cubic Feet of Gas per Hour of I.P.S. Pipe of Different Diameters and
Lengths Carrying Propane Gas of 1.52 Specific Gravity


Pipe Size
(In Inches)		 Length of Pipe (In Feet)
50' 100' 150' 200' 250' 300' 350' 400' 450' 500' 550' 600
1/2 1,000 690 550 470 420 380 350 325 300 285 272 260
3/4 2,070 1,423 1,142 978 867 785 722 672 631 596 566 540
1 3,899 2,680 2,152 1,842 1,632 1,479 1,361 1,266 1,188 1,122 1,066 1,017
1 1/4 8,005 5,502 4,418 3,782 3,351 3.057 2,794 2,599 2,439 2,303 2,188 2,087
1 1/2 11,994 8,244 6,620 5,666 5,022 4,550 4,186 3,894 3,654 3,451 3,278 3,124
2 23,100 15,877 12,750 10,912 9,671 8,763 8,062 7,500 7,037 6,647 6,313 6,023
2 1/2 36,818 25,305 20,321 17,392 15,414 13,966 12,849 11,953 11,215 10,594 10,062 9,599
3 65,088 44,734 35,923 30,746 27,249 24,690 22,714 21,131 19,827 18,728 17,787

16,969
650' 700' 750' 800' 850' 900' 950' 1000' 1100' 1200' 1300' 1400'
1/2 250 240 230 222 215 208 202 198 188 180 171 164
3/4 517 496 478 462 447 433 421 389 389 371 355 341
1 973 935 901 870 842 816 793 732 732 699 669 643
1 1/4 1,999 1,920 1,850 2,786 1,792 1,676 1,583 1,504 1,504 1,434 1,374 1,320
1 1/2 2,995 2,877 2,772 2,678 2,590 2,511 2,373 2,253 2,253 2,149 2,058 1,977
2 5,767 5,541 5,338 5,155 4,988 4,836 4,568 4,339 4,339 4,139 3,964 3,806
2 1/2 9,192 8,831 8,215 8,215 7,950 7,708 7,281 6,915 6,597 6,597 6,318 6,069
3 16,250 15,611 14,523 14,523 14,055 13,627 12,872 12,255 11,663 11,663 11,169 10,730
4 33,145 31,842 29,623 29,623 28,667 27,795 26,993 26,255 23,780 23,789 22,780 21,885


Table No. 22.A - Support of Piping
Size of Pipe (Inches) Feet
1/2
3/4
1 1/4" or Larger (Horizontal)
1 1/4" or Larger (Vertical)

6
8
10
Every Floor

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