公称尺寸 | 钢管外径 | 连接尺寸 | 法兰厚度 | 法兰颈 | 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 | ||||||||
NPS | DN | A | D | K | L | n | C | N | r | B | H |
1/2 | 15 | 21.3 | 90 | 60.3 | 16 | 4 | 9.6 | 30 | ≥4 | 15.8 | 46 |
3/4 | 20 | 26.9 | 100 | 69.9 | 16 | 4 | 11.2 | 38 | 20.9 | 51 | |
1 | 25 | 33.7 | 110 | 79.4 | 16 | 4 | 12.7 | 49 | 26.6 | 54 | |
1 1/4 | 32 | 42.4 | 115 | 88.9 | 16 | 4 | 14.3 | 59 | 35.1 | 56 | |
1 1/2 | 40 | 48.3 | 125 | 98.4 | 16 | 4 | 15.9 | 65 | 40.9 | 60 | |
2 | 50 | 60.3 | 150 | 120.7 | 19 | 4 | 17.5 | 78 | 52.5 | 62 | |
2 1/2 | 65 | 76.1 | 180 | 139.7 | 19 | 4 | 20.7 | 90 | 62.7 | 68 | |
3 | 80 | 88.9 | 190 | 152.4 | 19 | 4 | 22.3 | 108 | 77.9 | 68 | |
4 | 100 | 114.3 | 230 | 190.5 | 19 | 8 | 22.3 | 135 | 102.3 | 75 | |
5 | 125 | 139.7 | 255 | 215.9 | 22 | 8 | 22.3 | 164 | 128.2 | 87 | |
6 | 150 | 168.3 | 280 | 241.3 | 22 | 8 | 23.9 | 192 | 154.1 | 87 | |
8 | 200 | 219.1 | 345 | 298.5 | 22 | 8 | 27 | 246 | 202.7 | 100 | |
10 | 250 | 273 | 405 | 362 | 26 | 12 | 28.6 | 305 | 254.6 | 100 | |
12 | 300 | 323.9 | 485 | 431.8 | 26 | 12 | 30.2 | 365 | 304.8 | 113 | |
14 | 350 | 355.6 | 535 | 476.3 | 29 | 12 | 33.4 | 400 | 按用户规定或根据钢管尺寸确定 | 125 | |
16 | 400 | 406.4 | 595 | 539.8 | 29 | 16 | 35 | 457 | 125 | ||
18 | 450 | 457 | 635 | 577.9 | 32 | 16 | 38.1 | 505 | 138 | ||
20 | 500 | 508 | 700 | 635 | 32 | 20 | 41.3 | 559 | 143 | ||
24 | 600 | 610 | 815 | 749.3 | 35 | 20 | 46.1 | 663 | 151 |
更多相关带颈对焊法兰尺寸表
制造标准 | 压力等级 | 制造标准 | 压力等级 | 制造标准 | 压力等级 |
HG/T 20592 | PN10 | GB/T 9115 | PN2.5 | ASME B16.5 | Class150 |
PN16 | PN6 | Class300 | |||
PN25 | PN10 | Class600 | |||
PN40 | PN16 | Class900 | |||
PN63 | PN25 | Class1500 | |||
PN100 | PN40 | Class2500 | |||
PN160 | PN63 |
ASME B16.47 Series B API 605 |
Class75 | ||
HG/T 20615 | Class150 | PN100 | Class150 | ||
Class300 | PN160 | Class300 | |||
Class600 | PN250 | Class600 | |||
Class900 | PN320 | Class900 | |||
Class1500 | PN400 |
ASME B16.47 Series A MSS SP-44 |
Class150 | ||
Class2500 | GB/T 9115 | Class150 | Class300 | ||
DIN 2631 | PN6 | Class300 | Class600 | ||
DIN 2632 | PN10 | Class600 | Class900 | ||
DIN 2633 | PN16 | Class900 | BS 3293 | Class150 | |
DIN 2634 | PN25 | Class1500 | Class300 | ||
DIN 2635 | PN40 | Class2500 | Class600 | ||
更多相关标准未列明尺寸请咨询客服 |