压力等级 | 公称尺寸 | 法兰尺寸(mm) | ||||||
Class | NPS | D | D1 | D2 | b | f | n-φ | |
150 | 1/2 | 90 | 60.3 | 34.9 | 9.6 | 2 | 4-φ16 | |
3/4 | 100 | 69.9 | 42.9 | 11.2 | 2 | 4-φ16 | ||
1 | 110 | 79.4 | 50.8 | 12.7 | 2 | 4-φ16 | ||
1-1/4 | 115 | 88.9 | 63.5 | 14.3 | 2 | 4-φ16 | ||
1-1/2 | 125 | 98.4 | 73 | 15.9 | 2 | 4-φ16 | ||
2 | 150 | 120.7 | 92.1 | 17.5 | 2 | 4-φ19 | ||
2-1/2 | 180 | 139.7 | 104.8 | 20.7 | 2 | 4-φ19 | ||
3 | 190 | 152.4 | 127 | 22.3 | 2 | 4-φ19 | ||
4 | 230 | 190.5 | 157.2 | 22.3 | 2 | 8-φ19 | ||
5 | 255 | 215.9 | 185.7 | 22.3 | 2 | 8-φ22 | ||
6 | 280 | 241.3 | 215.9 | 23.9 | 2 | 8-φ22 | ||
8 | 345 | 298.5 | 269.9 | 27 | 2 | 8-φ22 | ||
10 | 405 | 362 | 323.8 | 28.6 | 2 | 12-φ25 | ||
12 | 485 | 431.8 | 381 | 30.2 | 2 | 12-φ25 | ||
14 | 535 | 476.3 | 412.8 | 33.4 | 2 | 12-φ29 | ||
16 | 595 | 539.8 | 469.9 | 35 | 2 | 16-φ29 | ||
18 | 635 | 577.9 | 533.4 | 38.1 | 2 | 16-φ32 | ||
20 | 700 | 635 | 584.2 | 41.3 | 2 | 20-φ32 | ||
24 | 815 | 749.3 | 692.2 | 46.1 | 2 | 20-φ35 | ||
26 | 785 | 744.5 | 711 | 39.8 | 2 | 36-φ22 | ||
28 | 835 | 795.3 | 762 | 43 | 2 | 40-φ22 | ||
30 | 885 | 846.1 | 813 | 43 | 2 | 44-φ22 | ||
32 | 940 | 900.1 | 864 | 44.6 | 2 | 48-φ22 | ||
34 | 1005 | 957.3 | 921 | 47.7 | 2 | 40-φ25 | ||
36 | 1055 | 1009.6 | 972 | 50.9 | 2 | 44-φ25 | ||
压力等级 | 公称尺寸 | 法兰尺寸(mm) | ||||||
Class | NPS | D | D1 | D2 | b | f | n-φd | |
300 | 1/2 | 95 | 66.7 | 34.9 | 12.7 | 2 | 4-φ16 | |
3/4 | 115 | 82.6 | 42.9 | 14.3 | 2 | 4-φ19 | ||
1 | 125 | 88.9 | 50.8 | 15.9 | 2 | 4-φ19 | ||
1-1/4 | 135 | 98.4 | 63.5 | 17.5 | 2 | 4-φ19 | ||
1-1/2 | 155 | 114.3 | 73 | 19.1 | 2 | 4-φ22 | ||
2 | 165 | 127 | 92.1 | 20.7 | 2 | 8-φ19 | ||
2-1/2 | 190 | 149.2 | 104.8 | 23.9 | 2 | 8-φ22 | ||
3 | 210 | 168.3 | 127 | 27 | 2 | 8-φ22 | ||
4 | 255 | 200 | 157.2 | 30.2 | 2 | 8-φ22 | ||
5 | 280 | 235 | 185.7 | 33.4 | 2 | 8-φ22 | ||
6 | 320 | 269.9 | 215.9 | 35 | 2 | 12-φ22 | ||
8 | 380 | 330.2 | 269.9 | 39.7 | 2 | 12-φ25 | ||
10 | 445 | 387.4 | 323.8 | 46.1 | 2 | 16-φ29 | ||
12 | 520 | 450.8 | 381 | 49.3 | 2 | 16-φ32 | ||
14 | 585 | 514.4 | 412.8 | 52.4 | 2 | 20-φ32 | ||
16 | 650 | 571.5 | 469.9 | 55.6 | 2 | 20-φ35 | ||
18 | 710 | 628.6 | 533.4 | 58.8 | 2 | 24-φ35 | ||
20 | 775 | 685.8 | 584.2 | 62 | 2 | 24-φ35 | ||
24 | 915 | 812.8 | 692.2 | 68.3 | 2 | 24-φ41 | ||
26 | 865 | 803.3 | 737 | 87.4 | 2 | 32-φ35 | ||
28 | 920 | 857.2 | 787 | 87.4 | 2 | 36-φ35 | ||
30 | 990 | 920.8 | 845 | 92.1 | 2 | 36-φ38 | ||
32 | 1055 | 977.9 | 902 | 101.6 | 2 | 32-φ41 | ||
34 | 1110 | 1031.9 | 953 | 101.6 | 2 | 36-φ41 | ||
36 | 1170 | 1089 | 1010 | 101.6 | 2 | 32-φ44 | ||