Table 5LP - Maximum Capacity* for the Flow of Undiluted Liquefied Petroleum (LP) Gases through Copper Tube in a an Elevated Pressure System of 2 psig and Pressure Drop of 1.0 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
10 149 308 626 1094 1552 3315 5968
20 102 211 430 752 1067 2279 4102
30 82 170 345 604 857 1830 3294
40 70 145 296 517 733 1566 2819
50 62 129 262 458 650 1388 2499
60 57 117 237 415 589 1258 2264
70 52 107 218 382 542 1157 2083
80 48 100 203 355 504 1076 1938
90 45 94 191 333 473 1010 1818
100 43 89 180 315 447 954 1717
125 38 78 160 279 396 845 1522
150 34 71 145 253 359 766 1379
175 32 65 133 233 330 705 1269
200 29 61 124 216 307 656 1180
250 26 54 110 192 272 581 1046

(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)