
| 公称尺寸 | 钢管外径A1 | 连接尺寸 | 法兰厚度 | 法兰内径 | 坡口宽度 | |||||
| 法兰外径 | 螺栓孔中心圆直径 | 螺栓孔直径 | 螺栓孔数量 | |||||||
| DN | A | B | D | K | L | n | C | A | B | b |
| 10 | 17.2 | 14 | 90 | 60 | 14 | 4 | 14 | 18 | 15 | 4 |
| 15 | 21.3 | 18 | 95 | 65 | 14 | 4 | 14 | 22.5 | 19 | 4 |
| 20 | 26.9 | 25 | 105 | 75 | 14 | 4 | 16 | 27.5 | 26 | 4 |
| 25 | 33.7 | 32 | 115 | 85 | 14 | 4 | 16 | 34.5 | 33 | 5 |
| 32 | 42.4 | 38 | 140 | 100 | 18 | 4 | 18 | 43.5 | 39 | 5 |
| 40 | 48.3 | 45 | 150 | 110 | 18 | 4 | 18 | 49.5 | 46 | 5 |
| 50 | 60.3 | 57 | 165 | 125 | 18 | 4 | 20 | 61.5 | 59 | 5 |
| 65 | 76.1 | 76 | 185 | 145 | 18 | 8 | 22 | 77.5 | 78 | 6 |
| 80 | 88.9 | 89 | 200 | 160 | 18 | 8 | 24 | 90.5 | 91 | 6 |
| 100 | 114.3 | 108 | 235 | 190 | 22 | 8 | 26 | 116 | 110 | 6 |
| 125 | 139.7 | 133 | 270 | 220 | 26 | 8 | 28 | 143.5 | 135 | 6 |
| 150 | 168.3 | 159 | 300 | 250 | 26 | 8 | 30 | 170.5 | 161 | 6 |
| 200 | 219.1 | 219 | 360 | 310 | 26 | 12 | 32 | 221.5 | 222 | 8 |
| 250 | 273 | 273 | 425 | 370 | 30 | 12 | 35 | 276.5 | 276 | 10 |
| 300 | 323.9 | 325 | 485 | 430 | 30 | 16 | 38 | 328 | 328 | 11 |
| 350 | 355.6 | 377 | 555 | 490 | 33 | 16 | 42 | 360 | 381 | 12 |
| 400 | 406.4 | 426 | 620 | 550 | 36 | 16 | 46 | 411 | 430 | 12 |
| 450 | 457 | 480 | 670 | 600 | 36 | 20 | 50 | 462 | 485 | 12 |
| 500 | 508 | 530 | 730 | 660 | 36 | 20 | 56 | 513.5 | 535 | 12 |
| 600 | 610 | 630 | 845 | 770 | 39 | 20 | 68 | 616.5 | 636 | 12 |
更多相关板式平焊法兰尺寸表
| 制造标准 | 压力等级 | 制造标准 | 压力等级 | 制造标准 | 压力等级 |
| HG/T 20592 | PN2.5 | GB/T 9119 | PN2.5 | JB/T 81 | PN2.5 |
| PN6 | PN6 | PN6 | |||
| PN10 | PN10 | PN10 | |||
| PN16 | PN16 | PN16 | |||
| PN25 | PN25 | PN25 | |||
| PN40 | PN40 | PN40 | |||
| PN63 | PN63 | ||||
| PN100 | PN100 | ||||
| 其他相关标准未列明尺寸请咨询客服 | |||||