Natural Gas Pressure drop 1.5 kPa Flow through PE-X / AL / PE-X pipe crimp fittings (MJ/h)
Length of straight pipe in metres
Nom diam 2 4 6 8 10 12 14 16 18 20 25 30 35 40 45 50 55 60 Correction
(mm)                                     (+ mt for fitting)
16 423 330 252 217 194 175 163 147 140 128 113 101 93 85 81 78 74 66 1.7
20 931 737 563 485 427 380 357 326 303 279 252 225 210 190 182 171 159 151 1.5
26 1630 1319 1028 892 776 698 660 601 563 524 466 419 388 349 341 310 295 279 0.8
32 3298 2600 2056 1824 1552 1397 1319 1203 1125 1048 931 854 776 718 660 640 601 582 0.7
40 6208 5044 3880 3414 2910 2600 2483 2250 2134 1959 1785 1591 1474 1358 1319 1203 1125 1086 N/A
50 11834 9506 7062 6596 5626 5122 4734 4268 4074 3764 3182 2871 2794 2406 2328 2250 2212 1940 N/A
63 23086 18624 14744 12804 10864 10088 9312 8536 7760 7372 6596 5820 5432 5354 4734 4462 4268 3880 N/A

This table is suitable for supply pressures within the range 5-10 kPa.
Technical Regulators requirements may vary in different states and territories.