Questar Gas - Good Practices for Gas Piping and Appliance ...
Questar Gas - Good Practices for Gas Piping and Appliance ...
Questar Gas - Good Practices for Gas Piping and Appliance ...
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CORREGATED STAINLESS STEEL<br />
TUBING (CSST)<br />
Natural <strong>Gas</strong> (Pressure: 2.0 psi) (Pressure Drop: 1.0 psi)<br />
TUBE SIZE (EDH*)<br />
13 15 18 19 23 25 30 31 37 46 62<br />
Length<br />
(ft)<br />
MAXIMUM CAPACITY in Cubic Feet Per Hour<br />
10 270 353 587 700 1,098 1,372 2,592 2,986 4, 509 9,599 21,637<br />
25 166 220 374 444 709 876 1,620 1,869 2,887 6,041 13,715<br />
30 151 200 342 405 650 801 1,475 1,730 2, 642 5,509 12,526<br />
40 129 172 297 351 567 696 1,273 1,470 2,297 4,763 10,855<br />
50 115 154 266 314 510 624 1,135 1,311 2, 061 4,255 9,715<br />
75 93 124 218 257 420 512 922 1,066 1, 692 3,467 7,940<br />
80 89 120 211 249 407 496 892 1,031 1,639 3,355 7,689<br />
100 79 107 189 222 366 445 795 920 1,471 2,997 6,881<br />
150 64 87 155 182 302 364 646 748 1,207 2,442 5,624<br />
200 55 75 135 157 263 317 557 645 1,049 2,111 4,874<br />
250 49 67 121 141 236 284 497 576 941 1,886 4,362<br />
300 44 61 110 129 217 260 453 525 862 1,720 3,983<br />
*EHD = Equivalent Hydraulic Diameter<br />
13-15 = 3/8” 18-19 = ½” 23-25=3/4” 30-31=1” 37=1 ¼” 46=1 ½” 62=2”<br />
TABLE VI<br />
CORREGATED STAINLESS STEEL<br />
TUBING (CSST)<br />
Natural <strong>Gas</strong> (Pressure: 5 psi) (Pressure Drop: 3.5 psi)<br />
TUBE SIZE (EDH*)<br />
13 15 18 19 23 25 30 31 37 46 62<br />
Length<br />
(ft)<br />
MAXIMUM CAPACITY in Cubic Feet Per Hour<br />
10 523 674 1,084 1,304 1,995 2,530 4,923 5,659 8,295 18,080 40,353<br />
25 322 420 691 827 1,289 1,616 3,077 3,543 5,311 11,378 25,580<br />
30 292 382 632 755 1,181 1,478 2,803 3,228 4,860 10,377 23,361<br />
40 251 329 549 654 1,031 1,284 2,418 2,786 4,225 8,972 20,246<br />
50 223 293 492 586 926 1,151 2,157 2,486 3,791 8,015 18,119<br />
75 180 238 403 479 763 944 1,752 2,021 3,112 6,530 14,809<br />
80 174 230 391 463 740 915 1,694 1,955 3,016 6,320 14,341<br />
100 154 205 350 415 665 820 1,511 1,744 2,705 5,646 12,834<br />
150 124 166 287 339 548 672 1,228 1,418 2,221 4,600 10,489<br />
200 107 143 249 294 478 584 1,060 1,224 1,931 3,977 9,090<br />
250 95 128 223 263 430 524 945 1,092 1,732 3,553 8,135<br />
300 86 116 204 240 394 479 860 995 1,585 3,240 7,430<br />
*EHD = Equivalent Hydraulic Diameter<br />
13-15 = 3/8” 18-19 = ½” 23-25=3/4” 30-31=1” 37=1 ¼” 46=1 ½” 62=2”<br />
TABLE VI (continued)<br />
43
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