54 PNEG-308 Purafire
15. Examples
Propane Gas (1.53 SP. GR.): @ 11 W.C. Based on 0.5" W.C. Pressure Drop (1000’s BTU/Hr)
Source: Natural Fuel Gas Code 5
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Edition 8/28/92
Propane (1.53 SP. G.R.): @ 5 PSI Based on 1 PSI Pressure Drop (1000’s BTU/Hr)
Source: Natural Fuel Gas Code 5
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Edition 8/28/92
Pipe Length
(ft.)
Tubing Size (O.D.) Type L Nominal Pipe Size (SCH.40)
3/8" 1/2" 5/8" 3/4" 7/8" 1-1/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4"
10 39 92 199 329 501 935 275 567 1071 2205 3307 6221 10140 17990 36710
20 26 62 131 216 346 630 189 393 732 1496 2299 4331 7046 12510 25520
30 21 50 107 181 277 500 152 315 590 1212 1858 3465 5695 10110 20620
40 19 41 90 145 233 427 129 267 504 1039 1559 2992 4778 8481 17300
50 18 37 79 131 198 376 114 237 448 913 1417 2646 4343 7708 15730
60 16 35 72 121 187 340 103 217 409 834 1275 2394 3908 6936 14150
80 13 29 62 104 155 289 89 185 346 724 1086 2047 3329 5908 12050
100 11 26 55 90 138 255 78 162 307 630 976 1811 2991 5309 10830
125 10 24 48 81 122 224 69 146 275 567 866 1606 2654 4711 9613
150 9 21 43 72 109 202 63 132 252 511 787 1496 2412 4281 8736
200 8 19 39 66 100 187 54 112 209 439 665 1282 2038 3618 7382
250 8 17 36 60 93 172 48 100 185 390 590 1138 1808 3210 6549
300 - - - - - - 43 90 168 353 534 1030 1637 2905 5927
350 - - - - - - 40 83 155 325 491 947 1505 2671 5450
400 - - - - - - 37 77 144 303 458 883 1404 2492 5084
Pipe
Length (ft.)
Copper Tubing Size (O.D.) Nominal Pipe Size (SCH.40)
3/8
" 1/2" 5/8" 3/4" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"
10 454 938 1907 3334 2946 6161 11605 23826 35699 68753
20 312 644 1311 2291 2025 4234 7976 16376 24536 47253
30 251 518 1053 1840 1626 3400 6405 13150 19703 37946
40 215 443 901 1575 1392 2910 5482 11255 16863 32477
50 190 393 799 1396 1233 2579 4859 9975 14946 28784
60 172 356 724 1265 1118 2337 4402 9038 13542 26080
70 159 327 666 1163 1028 2150 4050 8315 12458 23993
80 148 304 619 1082 957 2000 3768 7735 11590 22321
90 138 286 581 1015 897 1877 3535 7258 10875 20943
100 131 270 549 959 848 1773 3339 6856 10272 19783
125 116 239 486 850 751 1571 2956 6076 9104 17533
150 105 217 441 770 681 1424 2682 5505 8249 15886
175 97 199 405 709 626 1310 2467 5065 7589 14615
200 90 185 377 659 583 1218 2295 4712 7060 13597
225 84 174 354 619 547 1143 2153 4421 6624 12757
250 80 164 334 584 516 1080 2034 4176 6257 12051
275 76 156 318 555 490 1026 1932 3966 5943 11445
300 72 149 303 529 468 978 1843 3784 5669 10919
350 66 137 279 487 430 900 1696 3481 5216 10045
400 62 127 259 453 400 837 1577 3238 4852 9345
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