SECTION
12
Gas Line Sizing
Propane 10#
Table 6.3 (e) Semi-Rigid Copper Tubing SPECIAL USE: Tube Sizing Between First Stage (High Pressure Regulator) and Second Stage (Low Pressure Regulator) Gas Inlet Pressure Pressure Drop Specific Gravity
Undiluted Propane 10.0 psi 1.0 psi 1.50 Tube Size (inches)
K&L Nominal
ACR
1/4
3/8
1/2
5/8
3/4
1
11/4
11/2
2
1/2
5/8
3/4
7/8
11/8
13/8
—
—
0.375
0.500
0.625
0.750
0.875
1.125
1.375
1.625
2.125
Inside*
0.305
0.402
0.527
0.652
0.745
0.995
1.245
1.481
1.959
Length (feet) 10 20 30 40 50 60 70 80 90 100 125 150 175 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000
513 352 283 242 215 194 179 166 156 147 131 118 109 101 90 81 75 70 65 62 59 56 54 51 50 48 46 45 44 42 40 38 37 35 34 33 32 31 30 29
1,060 727 584 500 443 401 369 343 322 304 270 244 225 209 185 168 155 144 135 127 121 115 111 106 102 99 96 93 90 88 83 79 76 73 70 68 66 64 62 60
CapAcity in thousands of BTU per hour 20,500 11,400 5,330 3,760 2,150 14,100 7,830 3,670 2,580 1,480 11,300 6,290 2,940 2,080 1,190 9,690 5,380 2,520 1,780 1,020 8,590 4,770 2,230 1,570 901 7,780 4,320 2,020 1,430 816 7,160 3,980 1,860 1,310 751 6,660 3,700 1,730 1,220 699 6,250 3,470 1,630 1,150 655 5,900 3,280 1,540 1,080 619 5,230 2,910 1,360 959 549 4,740 2,630 1,230 869 497 4,360 2,420 1,130 799 457 4,060 2,250 1,060 744 426 3,600 2,000 935 659 377 3,260 1,810 847 597 342 3,000 1,660 779 549 314 2,790 1,550 725 511 292 2,620 1,450 680 480 274 2,470 1,370 643 453 259 2,350 1,300 610 430 246 2,240 1,240 582 410 235 2,140 1,190 558 393 225 2,060 1,140 536 378 216 1,980 1,100 516 364 208 1,920 1,060 498 351 201 1,850 1,030 482 340 195 1,800 1,000 468 330 189 1,750 970 454 320 183 1,700 944 442 311 178 1,610 896 420 296 169 1,540 855 400 282 161 1,470 819 383 270 155 1,420 787 368 260 148 1,360 758 355 250 143 1,320 732 343 241 138 1,270 708 331 234 134 1,240 687 321 227 130 1,200 667 312 220 126 1,170 648 304 214 122
32,300 22,200 17,900 15,300 13,500 12,300 11,300 10,500 9,850 9,310 8,250 7,470 6,880 6,400 5,670 5,140 4,730 4,400 4,130 3,900 3,700 3,530 3,380 3,250 3,130 3,020 2,920 2,840 2,750 2,680 2,540 2,430 2,320 2,230 2,150 2,080 2,010 1,950 1,890 1,840
67,400 46,300 37,200 31,800 28,200 25,600 23,500 21,900 20,500 19,400 17,200 15,600 14,300 13,300 11,800 10,700 9,840 9,160 8,590 8,120 7,710 7,350 7,040 6,770 6,520 6,290 6,090 5,910 5,730 5,580 5,300 5,050 4,840 4,650 4,480 4,330 4,190 4,060 3,940 3,830
Note: All table entries are rounded to 3 significant digits. * Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products.
This section is an excerpt from the NFPA 54 National Fuel Gas Code — 2006 Edition
TO ORDER, CALL: 800.243.9360 • CT: 860.722.2433 • FAX: 800.274.2004
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appendices
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outside
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