长高颈对焊法兰LWN
长高颈法兰 HG/T 20615 Class 600 LWN
2020-12-30
| 公称尺寸 | 钢管外径 | 连接尺寸 | 法兰厚度 | 法兰颈大端 | 法兰内径 | 法兰高度 | ||||
| 法兰外径 | 螺栓孔中心圆直径 | 螺栓孔直径 | 螺栓孔数量 | |||||||
| DN | NPS | A | D | K | L | n | C | N | B | H |
| 15 | 1/2 | 21.3 | 95 | 66.7 | 16 | 4 | 14.3 | 38 | - | 229 |
| 20 | 3/4 | 26.9 | 115 | 82.6 | 18 | 4 | 15.9 | 48 | - | 229 |
| 25 | 1 | 33.7 | 125 | 88.9 | 18 | 4 | 17.5 | 54 | - | 229 |
| 32 | 1 1/4 | 42.4 | 135 | 98.4 | 18 | 4 | 20.7 | 64 | - | 229 |
| 40 | 1 1/2 | 48.3 | 155 | 114.3 | 22 | 4 | 22.3 | 70 | - | 229 |
| 50 | 2 | 60.3 | 165 | 127 | 18 | 8 | 25.4 | 84 | - | 229 |
| 65 | 2 1/2 | 76.1 | 190 | 149.2 | 22 | 8 | 28.6 | 100 | - | 229 |
| 80 | 3 | 88.9 | 210 | 168.3 | 22 | 8 | 31.8 | 117 | - | 229 |
| 100 | 4 | 114.3 | 275 | 215.9 | 26 | 8 | 38.1 | 152 | - | 229 |
| 125 | 5 | 139.7 | 330 | 266.7 | 30 | 8 | 44.5 | 189 | - | 305 |
| 150 | 6 | 168.3 | 355 | 292.1 | 30 | 12 | 47.7 | 222 | - | 305 |
| 200 | 8 | 219.1 | 420 | 349.2 | 33 | 12 | 55.6 | 273 | - | 305 |
| 250 | 10 | 273 | 510 | 431.8 | 36 | 16 | 63.5 | 343 | - | 305 |
| 300 | 12 | 323.9 | 560 | 489 | 36 | 20 | 66.7 | 400 | - | 305 |
| 350 | 14 | 355.6 | 605 | 527 | 39 | 20 | 69.9 | 432 | - | 305 |
| 400 | 16 | 406.4 | 685 | 603.2 | 42 | 20 | 76.2 | 495 | - | 305 |
| 450 | 18 | 457 | 745 | 654 | 45 | 20 | 82.6 | 546 | - | 305 |
| 500 | 20 | 508 | 815 | 723.9 | 45 | 24 | 88.9 | 610 | - | 305 |
| 600 | 24 | 610 | 940 | 838.2 | 51 | 24 | 101.6 | 718 | - | 305 |
| 制造标准 | 压力等级 | 制造标准 | 压力等级 |
| HG/T 20615 | Class150 | HG/T 20615 | Class900 |
| Class300 | Class1500 | ||
| Class600 | Class2500 | ||
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