| 规格 | 工作钢管mm | 外护管mm | 保温层厚度mm | 管端非保温区长度mm | 管道长度mm | ||
|---|---|---|---|---|---|---|---|
| 公称直径 | 外径d | 钢管壁厚 t | 外径 D | 壁厚T | |||
| DN25 | 32 | 3.0 | 110 | 2.5 | 36.5 | 150-200 | 6-9 |
| DN32 | 38 | 3.0 | 110 | 2.5 | 33.5 | 150-200 | 6-9 |
| DN40 | 45 | 3.0 | 110 | 2.5 | 30.0 | 150-200 | 6-9 |
| DN50 | 57 | 3.5 | 125 | 2.5 | 31.5 | 150-200 | 6-9 |
| DN65 | 76 | 4.0 | 142 | 3.0 | 30.0 | 150-200 | 6-9 |
| DN80 | 89 | 4.0 | 160 | 3.0 | 32.5 | 150-200 | 6-9 |
| DN100 | 108 | 4.0 | 180 | 3.2 | 32.8 | 150-200 | 6-9 |
| DN125 | 133 | 4.5 | 225 | 3.5 | 42.5 | 150-200 | 6-9 |
| DN150 | 159 | 4.5 | 250 | 3.9 | 41.6 | 150-200 | 6-9 |
| DN200 | 219 | 6.0 | 315 | 4.9 | 43.1 | 150-200 | 12 |
| DN250 | 273 | 7.0 | 365 | 5.6 | 40.4 | 150-200 | 12 |
| DN300 | 325 | 7.0 | 420 | 7.0 | 40.5 | 150-200 | 12 |
| DN350 | 377 | 7.0 | 500 | 7.8 | 53.7 | 150-200 | 12 |
| DN450 | 478 | 8.0 | 600 | 8.8 | 52.2 | 150-200 | 12 |
| DN1000 | 1020 | 10.0 | 1155 | 15.0 | 52.5 | 150-200 | 12 |
| DN1400 | 1420 | 14.0 | 1600 | 16.0 | 74.0 | 150-200 | 12 |
