螺纹法兰TH
螺纹法兰 GB/T 9114 Class600 Th
2020-12-30
| 公称尺寸 | 钢管外径 | 连接尺寸 | 密封面 | 法兰厚度 | 法兰高度 | 法兰颈大端 | 最小螺纹长度 | 最小沉孔直径 | ||||||
| 法兰外径 | 螺栓孔中心圆直径 | 螺栓孔直径 | 螺栓孔数量 | |||||||||||
| NPS | DN | A | D | K | L | n | X | f1 | C | H | N | R | Tmin | Qmin |
| 1/2 | 15 | 21.3 | 95 | 66.7 | 16 | 4 | 34.9 | 7 | 14.3 | 22 | 38 | ≥4 | 16 | 23.6 |
| 3/4 | 20 | 26.9 | 115 | 82.6 | 19 | 4 | 42.9 | 7 | 15.9 | 25 | 48 | 16 | 29 | |
| 1 | 25 | 33.7 | 125 | 88.9 | 19 | 4 | 50.8 | 7 | 17.5 | 27 | 54 | 18 | 35.8 | |
| 1 1/4 | 32 | 42.4 | 135 | 98.4 | 19 | 4 | 63.5 | 7 | 20.7 | 29 | 64 | 21 | 44.4 | |
| 1 1/2 | 40 | 48.3 | 155 | 114.3 | 22 | 4 | 73 | 7 | 22.3 | 32 | 70 | 23 | 50.3 | |
| 2 | 50 | 60.3 | 165 | 127 | 19 | 8 | 92.1 | 7 | 25.4 | 37 | 84 | 29 | 63.5 | |
| 2 1/2 | 65 | 76.1 | 190 | 149.2 | 22 | 8 | 104.8 | 7 | 28.6 | 41 | 100 | 32 | 76.2 | |
| 3 | 80 | 88.9 | 210 | 168.3 | 22 | 8 | 127 | 7 | 31.8 | 46 | 117 | 35 | 92.2 | |
| 4 | 100 | 114.3 | 275 | 215.9 | 26 | 8 | 157.2 | 7 | 38.1 | 54 | 152 | 42 | 117.6 | |
| 5 | 125 | 139.7 | 330 | 266.7 | 30 | 8 | 185.7 | 7 | 44.5 | 60 | 189 | 48 | 144.4 | |
| 6 | 150 | 168.3 | 355 | 292.1 | 30 | 12 | 215.9 | 7 | 47.7 | 67 | 222 | 51 | 171.4 | |
| 8 | 200 | 219.1 | 420 | 349.2 | 33 | 12 | 269.9 | 7 | 55.6 | 76 | 273 | 58 | 222.2 | |
| 10 | 250 | 273 | 510 | 431.8 | 35 | 16 | 323.8 | 7 | 63.5 | 86 | 343 | 66 | 276.2 | |
| 12 | 300 | 323.9 | 560 | 489 | 35 | 20 | 381 | 7 | 66.7 | 92 | 400 | 70 | 328.6 | |
| 14 | 350 | 355.6 | 605 | 527 | 39 | 20 | 412.8 | 7 | 69.9 | 94 | 432 | 74 | 360.4 | |
| 16 | 400 | 406.4 | 685 | 603.2 | 42 | 20 | 469.9 | 7 | 76.2 | 106 | 495 | 78 | 411.2 | |
| 18 | 450 | 457 | 745 | 654 | 45 | 20 | 533.4 | 7 | 82.6 | 117 | 546 | 80 | 462 | |
| 20 | 500 | 508 | 815 | 723.9 | 45 | 24 | 584.2 | 7 | 88.9 | 127 | 610 | 83 | 512.8 | |
| 24 | 600 | 610 | 940 | 838.2 | 51 | 24 | 692.2 | 7 | 101.6 | 140 | 718 | 93 | 614.4 | |
| 制造标准 | 压力等级 | 制造标准 | 压力等级 |
| GB/T 9114 | PN6 | HG/T 20592 | PN6 |
| PN10 | PN10 | ||
| PN16 | PN16 | ||
| PN25 | PN25 | ||
| PN40 | PN40 | ||
| PN63 | HG/T 20615 | Class150 | |
| PN100 | Class300 | ||
| Class150 | ASME B16.5 | Class150 | |
| Class300 | Class300 | ||
| Class600 | Class600 | ||
| Class900 | Class900 | ||
| Class1500 | DIN 2565 | PN6 | |
| Class2500 | DIN 2566 | PN10/PN16 | |
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