| 规格 | 钢管件 | 外护管 | R=1.5D 臂长L | R=2.5D 臂长L | R=3D 臂长L | ||
|---|---|---|---|---|---|---|---|
| 公称直径 | 外径d | 钢管壁厚 t | 外径 D | 壁厚T | |||
| DN50 | 57 | 3.5 | 125 | 2.5 | 426 | 475 | 500 |
| DN65 | 76 | 3.5 | 142 | 3.0 | 445 | 513 | 495 |
| DN80 | 89 | 4.0 | 160 | 3.0 | 464 | 500 | 540 |
| DN100 | 108 | 4.0 | 200 | 3.2 | 502 | 550 | 600 |
| DN125 | 133 | 4.5 | 225 | 3.5 | 540 | 613 | 675 |
| DN150 | 159 | 5.0 | 250 | 3.9 | 579 | 675 | 750 |
| DN200 | 219 | 6.0 | 315 | 4.9 | 605 | 800 | 850 |
| DN300 | 325 | 7.0 | 420 | 7.0 | 757 | 1000 | 1150 |
| DN400 | 426 | 7.0 | 550 | 8.8 | 910 | 1250 | 1450 |
| DN500 | 529 | 8.0 | 655 | 9.8 | 1062 | 1500 | 1750 |
| DN600 | 630 | 8.0 | 760 | 11.5 | 1164 | 1750 | 2050 |
| DN700 | 720 | 8.0 | 850 | 12.0 | 1317 | 2000 | 2350 |
| DN800 | 820 | 9.0 | 955 | 13.0 | 1469 | 2250 | 2650 |
| DN1100 | 1120 | 12.0 | 1260 | 15.0 | 1926 | 3000 | 3550 |
| DN1200 | 1220 | 12.0 | 1380 | 16.0 | 2079 | 3250 | 3850 |
| DN1400 | 1420 | 14.0 | 1600 | 16.0 | 2384 | 3750 | 4450 |
