口径 DN | 适 用 的 钢管外径 | 法兰外径D | 法兰各部分尺寸 | 螺栓孔 | 螺栓的 螺纹 尺寸 | |||||
b | f | 直径D2 | 中心圆直径D1 | 数量z | 直径d | |||||
灰铸铁以外 | 灰铸铁 | |||||||||
10 | 17.3 | 75 | 9 | 12 | 1 | 39 | 55 | 4 | 12 | M10 |
15 | 21.7 | 80 | 9 | 12 | 1 | 44 | 60 | 4 | 12 | M10 |
20 | 27.2 | 85 | 10 | 14 | 1 | 49 | 65 | 4 | 12 | M10 |
25 | 34.0 | 95 | 10 | 14 | 1 | 59 | 75 | 4 | 12 | M10 |
32 | 42.7 | 115 | 12 | 16 | 2 | 70 | 90 | 4 | 15 | M12 |
40 | 48.6 | 120 | 12 | 16 | 2 | 75 | 95 | 4 | 15 | M12 |
50 | 60.5 | 130 | 14 | 16 | 2 | 85 | 105 | 4 | 15 | M12 |
65 | 76.3 | 155 | 14 | 18 | 2 | 110 | 130 | 4 | 15 | M12 |
80 | 89.1 | 180 | 14 | 18 | 2 | 121 | 145 | 4 | 19 | M16 |
100 | 114.3 | 200 | 16 | 20 | 2 | 141 | 165 | 8 | 19 | M16 |
125 | 139.8 | 235 | 16 | 20 | 2 | 176 | 200 | 8 | 19 | M16 |
150 | 165.2 | 265 | 18 | 22 | 2 | 206 | 230 | 8 | 19 | M16 |
200 | 216.3 | 320 | 20 | 24 | 2 | 252 | 280 | 8 | 23 | M20 |
250 | 267.4 | 385 | 22 | 26 | 2 | 317 | 345 | 12 | 23 | M20 |
300 | 318.5 | 430 | 22 | 28 | 3 | 360 | 390 | 12 | 23 | M20 |
350 | 355.6 | 480 | 24 | 30 | 3 | 403 | 435 | 12 | 25 | M22 |
400 | 406.4 | 540 | 24 | 30 | 3 | 463 | 495 | 16 | 25 | M22 |
450 | 457.2 | 605 | 24 | 30 | 3 | 523 | 555 | 16 | 25 | M22 |
500 | 508.0 | 655 | 24 | 32 | 3 | 573 | 605 | 20 | 25 | M22 |
600 | 609.6 | 770 | 26 | 32 | 3 | 680 | 715 | 20 | 27 | M24 |
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