Class1500(PN260)长高颈钢制管法兰(LWN)的尺寸 - HG/T 20615-2009
发布时间：2023-03-17 点击数：2348
Class1500(PN260)长高颈钢制管法兰(LWN)的尺寸 - HG/T 20615-2009
| DN | NPS | 钢管外径, A | 法兰外径，D | 螺栓孔中心圆直径，K | 螺栓孔直径，L | 螺栓规格 | 螺栓 孔数,n |
密封面直径 | 密封面高度 | 法兰厚度, C | 法兰颈部直径,N | 法兰内径,B | 法兰高度，H |
| 15 | 1/2 | 21.3 | 120 | 82.6 | 22 | M20 | 4 | 34.9 | 7 | 22.3 | 38 | - | 229 |
| 20 | 3/4 | 26.7 | 130 | 88.9 | 22 | M20 | 4 | 42.9 | 7 | 25.4 | 44 | - | 229 |
| 25 | 1 | 33.4 | 150 | 101.6 | 26 | M24 | 4 | 50.8 | 7 | 28.6 | 52 | - | 229 |
| 32 | 1 ¼ | 42.2 | 160 | 111.1 | 26 | M24 | 4 | 63.5 | 7 | 28.6 | 64 | - | 229 |
| 40 | 1 ½ | 48.3 | 180 | 123.8 | 30 | M27 | 4 | 73.0 | 7 | 31.8 | 70 | - | 229 |
| 50 | 2 | 60.3 | 215 | 165.1 | 26 | M24 | 8 | 92.1 | 7 | 38.1 | 105 | - | 229 |
| 65 | 2 ½ | 76.1 | 245 | 190.5 | 30 | M27 | 8 | 104.8 | 7 | 41.3 | 124 | - | 229 |
| 80 | 3 | 88.9 | 265 | 203.2 | 33 | M30 | 8 | 127.0 | 7 | 47.7 | 133 | - | 229 |
| 100 | 4 | 114.3 | 310 | 241.3 | 36 | M33 | 8 | 157.2 | 7 | 54.0 | 162 | - | 229 |
| 125 | 5 | 141.3 | 375 | 292.1 | 42 | M39 | 8 | 185.7 | 7 | 73.1 | 197 | - | 305 |
| 150 | 6 | 168.3 | 395 | 317.5 | 39 | M36 | 12 | 215.9 | 7 | 82.6 | 229 | - | 305 |
| 200 | 8 | 219.1 | 485 | 393.7 | 45 | M42 | 12 | 269.9 | 7 | 92.1 | 292 | - | 305 |
| 250 | 10 | 273.0 | 585 | 482.6 | 51 | M48 | 12 | 323.8 | 7 | 108.0 | 368 | - | 305 |
| 300 | 12 | 323.8 | 675 | 571.5 | 55 | M52 | 16 | 381.0 | 7 | 123.9 | 451 | - | 305 |
| 350 | 14 | 355.6 | 750 | 635.0 | 60 | M56 | 16 | 412.8 | 7 | 133.4 | 495 | - | 305 |
| 400 | 16 | 406.4 | 825 | 704.8 | 68 | M64 | 16 | 469.9 | 7 | 146.1 | 552 | - | 305 |
| 450 | 18 | 457.0 | 915 | 774.7 | 74 | M70 | 16 | 533.4 | 7 | 162.0 | 597 | - | 305 |
| 500 | 20 | 508.0 | 985 | 831.8 | 80 | M76 | 16 | 584.2 | 7 | 177.8 | 641 | - | 305 |
| 600 | 24 | 610.0 | 1170 | 990.6 | 94 | M90 | 16 | 692.2 | 7 | 203.2 | 762 | - | 305 |
法兰内径B由钢管壁厚确定。