JB/T81-1994 板式平焊法蘭 PN0.25Mpa Pg2.5Kg/
| 公稱通徑 | 管子外徑 | 法蘭外徑 | 螺栓孔中心距 | 密封面直徑 | 密封面高度 | 法蘭厚度 | 螺栓孔徑 | 螺栓孔數 | 理論重量 | |
| Dg | A | B | D | D1 | D2 | F | d | d |
|
Kg |
| 10 | 17.3 | 14 | 70 | 50 | 32 | 2 | 10 | 12 | 4 | 0.254 |
| 15 | 21.3 | 18 | 80 | 55 | 40 | 2 | 10 | 12 | 4 | 0.29 |
| 20 | 26.9 | 25 | 90 | 65 | 50 | 2 | 12 | 12 | 4 | 0.45 |
| 25 | 33.7 | 32 | 100 | 75 | 60 | 2 | 12 | 12 | 4 | 0.553 |
| 32 | 42.4 | 38 | 120 | 90 | 70 | 2 | 12 | 14 | 4 | 0.795 |
| 40 | 48.3 | 45 | 130 | 100 | 80 | 3 | 12 | 14 | 4 | 0.87 |
| 50 | 60.3 | 57 | 140 | 110 | 90 | 3 | 12 | 14 | 4 | 0.954 |
| 65 | 76.1 | 76 | 160 | 130 | 116 | 3 | 14 | 14 | 4 | 1.53 |
| 80 | 88.9 | 89 | 185 | 150 | 125 | 3 | 14 | 18 | 4 | 1.95 |
| 100 | 114.3 | 108 | 205 | 170 | 145 | 3 | 14 | 18 | 4 | 2.2 |
| 125 | 139.7 | 133 | 235 | 200 | 175 | 3 | 14 | 18 | 8 | 2.78 |
| 150 | 168.3 | 159 | 200 | 225 | 200 | 3 | 16 | 18 | 8 | 3.49 |
| 175 |
|
194 | 290 | 255 | 230 | 3 | 16 | 18 | 8 | 3.86 |
| 200 | 219.1 | 219 | 315 | 280 | 255 | 3 | 18 | 18 | 8 | 4.88 |
| 225 |
|
245 | 340 | 305 | 280 | 3 | 20 | 18 | 8 | 5.93 |
| 250 | 273 | 273 | 370 | 335 | 310 | 3 | 22 | 18 | 12 | 7.32 |
| 300 | 323.9 | 325 | 435 | 395 | 362 | 4 | 22 | 23 | 12 | 9.4 |
| 350 | 355.6 | 377 | 485 | 445 | 412 | 4 | 22 | 23 | 12 | 10.5 |
| 400 | 406.6 | 426 | 535 | 495 | 462 | 4 | 22 | 23 | 16 | 11.7 |
| 450 | 457 | 478 | 590 | 550 | 518 | 4 | 24 | 23 | 16 | 14.9 |
| 500 | 508 | 520 | 640 | 600 | 568 | 4 | 24 | 23 | 16 | 16.2 |
| 600 | 610 | 630 | 755 | 705 | 670 | 5 | 24 | 25 | 20 | 20.6 |
| 700 | 711 | 720 | 860 | 810 | 775 | 5 | 26 | 25 | 24 | 29.9 |
| 800 | 813 | 820 | 975 | 950 | 880 | 5 | 26 | 30 | 24 | 36.7 |
| 900 | 914 | 920 | 1075 | 1020 | 980 | 5 | 28 | 30 | 24 | 44.2 |
| 1000 | 1016 | 1020 | 1175 | 1120 | 1080 | 5 | 30 | 30 | 28 | 52.7 |
| 1200 | 1219 | 1220 | 1375 | 1320 | 1280 | 5 | 30 | 30 | 32 | 65.9 |
| 1400 | 1422 | 1420 | 1575 | 1520 | 1480 | 5 | 32 | 30 | 36 | 78.3 |
| 1600 | 1626 | 1620 | 1795 | 1730 | 1690 | 5 | 32 | 30 | 40 | 94.3 |
| 1800 | 1829 | 1820 | 1985 | 1930 | 1890 | 5 | 34 | 30 | 44 | 112 |
| 2000 | 2032 | 2020 | 2105 | 2130 | 2090 | 5 | 34 | 30 | 48 | 124 |
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