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Polyethylene Pipe & Tubing (PE 2406/Yellow) Line Sizing Chart for LP Gas Vapor Line sizing for LP gas vapor between 1st and 2nd stage regulators allowing a pressure drop of 1 psi at 10 psi setting. Tubing Length (ft)* 1/2" CTS SDR 7 (.090") 1/2" IPS SDR 9.3 (.090") 3/4" IPS SDR 11 (.095") 1" CTS SDR 11.5 (.099") 1" IPS SDR 11 (.119") 1-1/4" IPS SDR 10 (.166") 2" IPS SDR 11 (.216") Maximum LP Gas Vapor Capacity (thousands of Btu/hr) 10 20 30 40 50 60 70 80 90 100 125 150 175 200 225 250 275 300 350 400 1406 944 747 634 557 502 459 425 397 374 329 296 271 251 235 221 209 199 182 169 4235 2843 2252 1908 1679 1512 1383 1281 1197 1127 991 893 817 756 707 665 630 599 548 508 8940 6001 4753 4029 3544 3191 2920 2704 2527 2379 2092 1884 1724 1597 1492 1405 1330 1265 1157 1072 10803 7252 5744 4868 4282 3856 3529 3268 3054 2874 2528 2277 2084 1930 1803 1697 1607 1528 1399 1295 16486 11067 8766 7429 6535 5884 5385 4987 4661 4387 3858 3474 3180 2945 2752 2590 2452 2332 2134 1976 28912 19409 15372 13029 11460 10319 9444 8746 8173 7693 6766 6093 5576 5164 4826 4542 4300 4090 3743 3467 82488 55373 43858 37171 32695 29441 26944 24953 23319 21948 19305 17384 15909 14733 13768 12959 12268 11669 10680 9890   * Total length of piping from outlet of first stage regulator to inlet of farthest second stage regulator. Note: Polyethylene pipe/tubing shall be limited to vapor service, not exceeding 30 psig, and must be installed outdoors and underground The above numbers were calculated by using the Mueller formula for high pressure installations of smooth pipe such as plastic, copper, brass, etc. carrying gas at pressures greater than 1 psig.   All Perfection Corporation terms and conditions of sale apply to all products and services sold.   AHA/1M/0502    © 2002 Perfection Corporation