Table 6LP - Maximum Capacity* for the Flow of Undiluted Liquefied Petroleum (LP) Gases through Copper Tube in a an Elevated Pressure System of 5 psig and Pressure Drop of 3.5 psig, CFH.**

Length of Tube, feetOutside Diameter of Tube, inches
3/8 1/2 5/8 3/4 7/8 1 1/8 1 3/8
10 310 641 1303 2277 3231 6902 12425
20 213 440 896 1565 2221 4743 8539
30 171 354 719 1257 1783 3809 6858
40 147 303 616 1076 1526 3260 5869
50 130 268 546 953 1353 2889 5202
60 118 243 494 864 1226 2618 4713
70 108 224 455 795 1128 2409 4336
80 101 208 423 739 1049 2241 4034
90 95 195 397 694 984 2102 3785
100 89 184 375 655 930 1986 3575
125 79 163 332 581 824 1760 3169
150 72 148 301 526 747 1595 2871
175 66 136 277 484 687 1467 2641
200 61 127 258 450 639 1365 2457
250 54 112 228 399 566 1210 2178

(Based on atmospheric pressure at sea level)

(Capacities in the table are based on the properties of commercial propane gas with a specific gravity of 1.52. Physical properties of the gas are based on those properties given in the Gas Processors Suppliers Association Engineering Data Book, Eleventh Edition)