40K size and thread dimensions of China, USA and Japan
公称通径DN | 外径OD | 螺栓孔中心圆直径 | 连接凸出部分直径 | 内径 | 法兰厚度 | 连接部分凸出高度 | 螺栓孔数量与直径 | 螺栓直径 |
DN | D | D1 | D2 | D3 | t* | f | n-d | M |
20 | 120 | 85 | 60 | 19 | 20 | 1 | 4-19 | 16 |
25 | 130 | 95 | 70 | 25 | 22 | 1 | 4-19 | 16 |
40 | 160 | 120 | 90 | 38 | 24 | 2 | 4-23 | 20 |
50 | 165 | 130 | 105 | 51 | 26 | 2 | 8-19 | 16 |
65 | 200 | 160 | 130 | 64 | 30 | 2 | 8-23 | 20 |
80 | 210 | 170 | 140 | 76 | 32 | 2 | 8-23 | 20 |
100 | 250 | 205 | 165 | 102 | 36 | 2 | 8-25 | 22 |
125 | 300 | 250 | 200 | 125 | 40 | 2 | 8-27 | 24 |
150 | 355 | 295 | 240 | 152 | 44 | 2 | 12-33 | 30 |
200 | 405 | 345 | 290 | 200 | 50 | 2 | 12-33 | 30 |
250 | 475 | 440 | 355 | 247.5 | 56 | 2 | 12-33 | 30 |
300 | 540 | 470 | 440 | 298.5 | 60 | 3 | 16-39 | 36 |