| 表E-2 Class300法兰的近似质量 | (kg) | |||||||
| 公称尺寸 | 带颈平焊 SO | 带颈对焊 WN | 长高颈 LWN | 承插焊 SW | 螺纹 Th | 对焊环松套 LF | 法兰盖 BL | |
| DN | NPS | |||||||
| 15 | 1/2 | 0.68 | 0.91 | 2.21 | 1.36 | 0.68 | 0.68 | 0.91 |
| 20 | 3/4 | 1.14 | 1.36 | 3.47 | 1.36 | 1.14 | 1.14 | 1.36 |
| 25 | 1 | 1.36 | 1.82 | 4.20 | 1.36 | 1.36 | 1.36 | 1.82 |
| 32 | 1 1/4 | 2.04 | 2.27 | 5.44 | 1.82 | 2.04 | 2.04 | 2.72 |
| 40 | 1 1/2 | 2.95 | 3.18 | 6.57 | 2.72 | 2.95 | 2.95 | 3.18 |
| 50 | 2 | 3.18 | 3.63 | 8.40 | 3.18 | 3.18 | 3.18 | 3.63 |
| 65 | 2 1/2 | 4.54 | 5.45 | 11.25 | 4.54 | 4.54 | 4.54 | 5.45 |
| 80 | 3 | 5.90 | 8.17 | 15.28 | 5.90 | 6.36 | 6.58 | 7.26 |
| 100 | 4 | 10.67 | 12.03 | 22.99 | — | 10.90 | 10.90 | 12.71 |
| 125 | 5 | 13.17 | 16.34 | 38.04 | — | 14.07 | 11.80 | 16.80 |
| 150 | 6 | 16.34 | 20.43 | 46.85 | — | 16.34 | 17.25 | 21.79 |
| 200 | 8 | 25.42 | 31.33 | 66.37 | — | — | 24.97 | 35.87 |
| 250 | 10 | 34.96 | 45.40 | 94.23 | — | — | 39.95 | 55.39 |
| 300 | 12 | 51.30 | 64.47 | 125.16 | 一 | — | 63.11 | 83.08 |
| 350 | 14 | 72.19 | 93.52 | 175.20 | — | — | 83.54 | 109.41 |
| 400 | 16 | 95.34 | 113.05 | 221.10 | — | — | 106.24 | 143.01 |
| 450 | 18 | 114.86 | 138.92 | 256.89 | — | — | 138.47 | 187.96 |
| 500 | 20 | 139.38 | 167.53 | 307.16 | — | — | 170.25 | 233.81 |
| 600 | 24 | 222.46 | 235.63 | 431.02 | — | — | 240.62 | 363.20 |