


| PN16 | 公称尺寸DN | 钢管外径A1 | 连接尺寸 | 法兰厚度C | 法兰内径B1 | 坡口宽度 | ||||||
| A | B | 法兰外径D | 螺栓孔中心圆直径K | 螺栓孔直径L | 螺栓孔数量n | 螺栓Th | A | B | ||||
| 10 | 17.2 | 14 | 90 | 60 | 14 | 4 | M12 | 14 | 15 | 4 | 4 | |
| 15 | 21.3 | 18 | 95 | 65 | 14 | 4 | M12 | 14 | 19 | 4 | 4 | |
| 20 | 26.9 | 25 | 105 | 75 | 14 | 4 | M12 | 16 | 26 | 4 | 4 | |
| 25 | 33.7 | 32 | 115 | 85 | 14 | 4 | M12 | 16 | 33 | 5 | 5 | |
| 32 | 42.4 | 38 | 140 | 100 | 18 | 4 | M16 | 18 | 39 | 5 | 5 | |
| 40 | 48.3 | 45 | 150 | 110 | 18 | 4 | M16 | 18 | 46 | 5 | 5 | |
| 50 | 60.3 | 57 | 165 | 125 | 18 | 4 | M16 | 19 | 59 | 5 | 5 | |
| 65 | 76.1 | 76 | 185 | 145 | 18 | 8 | M16 | 20 | 78 | 6 | 6 | |
| 80 | 88.9 | 89 | 200 | 160 | 18 | 8 | M16 | 20 | 91 | 6 | 6 | |
| 100 | 114.3 | 108 | 220 | 180 | 18 | 8 | M16 | 22 | 110 | 6 | 6 | |
| 125 | 139.7 | 133 | 250 | 210 | 18 | 8 | M16 | 22 | 135 | 6 | 6 | |
| 150 | 168.3 | 159 | 285 | 240 | 22 | 8 | M20 | 24 | 161 | 6 | 6 | |
| 200 | 219.1 | 219 | 340 | 295 | 22 | 12 | M20 | 26 | 222 | 8 | 8 | |
| 250 | 273 | 273 | 405 | 355 | 26 | 12 | M24 | 29 | 276 | 10 | 10 | |
| 300 | 323.9 | 325 | 460 | 410 | 26 | 12 | M24 | 32 | 328 | 11 | 11 | |
| 350 | 355.6 | 377 | 520 | 470 | 26 | 16 | M24 | 35 | 381 | 12 | 12 | |
| 400 | 406.4 | 426 | 580 | 525 | 30 | 16 | M27 | 38 | 430 | 12 | 12 | |
| 450 | 457 | 480 | 640 | 585 | 30 | 20 | M27 | 42 | 485 | 12 | 12 | |
| 500 | 508 | 530 | 715 | 650 | 33 | 20 | M30 | 46 | 513.5 | 535 | 12 | |
| 600 | 610 | 630 | 840 | 770 | 33 | 20 | M30 | 52 | 616.5 | 636 | 12 | |