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| 法兰规格尺寸表(美标) |
ANSI标准125型 |
ANSI标准150型 |
| in |
公称 通径 |
10kg=1.0MPa |
公称通径 |
16kg=1.6MPa |
| 法兰外径 |
螺栓孔距 |
螺栓直径 |
螺栓孔数 |
法兰厚度 |
法兰外径 |
螺栓孔距 |
螺栓直径 |
螺栓孔数 |
法兰厚度 |
| 11/2 |
DN40 |
127 |
98.5 |
16 |
4 |
14.3 |
DN40 |
127 |
98.5 |
16 |
4 |
17.5 |
| 2 |
DN50 |
152 |
120.5 |
19 |
4 |
15.9 |
DN50 |
152 |
121.5 |
19 |
4 |
19.1 |
| 21/2 |
DN65 |
178 |
139.5 |
19 |
4 |
17.5 |
DN65 |
178 |
139.5 |
19 |
4 |
22.3 |
| 3 |
DN80 |
190 |
152.5 |
19 |
4 |
19.1 |
DN80 |
190 |
152.5 |
19 |
4 |
23.9 |
| 4 |
DN100 |
229 |
190.5 |
19 |
8 |
23.9 |
DN100 |
229 |
190.5 |
19 |
8 |
23.9 |
| 5 |
DN125 |
254 |
216.5 |
22 |
8 |
23.9 |
DN125 |
254 |
216.5 |
22 |
8 |
23.9 |
| 6 |
DN150 |
279 |
241.5 |
22 |
8 |
25.4 |
DN150 |
279 |
241.5 |
22 |
8 |
25.4 |
| 8 |
DN200 |
343 |
298.5 |
22 |
8 |
28.6 |
DN200 |
343 |
298.5 |
22 |
8 |
28.6 |
| 10 |
DN250 |
406 |
362.5 |
25 |
12 |
30.2 |
DN250 |
406 |
362.5 |
25 |
12 |
30.2 |
| 12 |
DN300 |
483 |
432 |
25 |
12 |
31.8 |
DN300 |
483 |
432 |
25 |
12 |
31.8 |
| 14 |
DN350 |
533 |
476.5 |
29 |
12 |
35 |
DN350 |
533 |
476.5 |
29 |
12 |
35 |
| 16 |
DN400 |
597 |
539.5 |
29 |
16 |
36.6 |
DN400 |
597 |
539.5 |
29 |
16 |
36.6 |
20kg=2.0MPa
| ANSI标准300型 |
| 公称通径 |
| 法兰外径 |
螺栓孔距 |
螺栓直径 |
螺栓孔数 |
法兰厚度 |
| DN40 |
156 |
114.5 |
19 |
4 |
18 |
| DN50 |
165 |
127 |
22 |
8 |
18 |
| DN65 |
190 |
149 |
22 |
8 |
20 |
| DN80 |
210 |
168 |
22 |
8 |
22 |
| DN100 |
254 |
200 |
22 |
8 |
24 |
| DN125 |
279 |
235 |
22 |
8 |
26 |
| DN150 |
318 |
270 |
22 |
12 |
28 |
| DN200 |
381 |
330 |
25 |
12 |
30 |
| DN250 |
444 |
387.5 |
29 |
16 |
34 |
| DN300 |
521 |
451 |
32 |
16 |
36 |
| DN350 |
584 |
514.5 |
32 |
20 |
40 |
| DN400 |
648 |
571.5 |
3 5 |
20 |
46 |
| 螺栓配套孔距对比表 |
| 螺栓孔距直径 |
11 |
14 |
18(19) |
22(23) |
26(28) |
30(31) |
33(34) |
36(37) |
39(40) |
| 螺栓公称直径 |
M10 |
M12 |
M16 |
M20 |
M24 |
M27 |
M30 |
M33 |
M36 |
ANSI标准125型 |
ANSI标准150型 |
| in |
公称 通径 |
10kg=1.0MPa |
公称通径 |
16kg=1.6MPa |
| 法兰外径 |
螺栓孔距 |
螺栓直径 |
螺栓孔数 |
法兰厚度 |
法兰外径 |
螺栓孔距 |
螺栓直径 |
螺栓孔数 |
法兰厚度 |
| 11/2 |
DN40 |
127 |
98.5 |
16 |
4 |
14.3 |
DN40 |
127 |
98.5 |
16 |
4 |
17.5 |
| 2 |
DN50 |
152 |
120.5 |
19 |
4 |
15.9 |
DN50 |
152 |
121.5 |
19 |
4 |
19.1 |
| 21/2 |
DN65 |
178 |
139.5 |
19 |
4 |
17.5 |
DN65 |
178 |
139.5 |
19 |
4 |
22.3 |
| 3 |
DN80 |
190 |
152.5 |
19 |
4 |
19.1 |
DN80 |
190 |
152.5 |
19 |
4 |
23.9 |
| 4 |
DN100 |
229 |
190.5 |
19 |
8 |
23.9 |
DN100 |
229 |
190.5 |
19 |
8 |
23.9 |
| 5 |
DN125 |
254 |
216.5 |
22 |
8 |
23.9 |
DN125 |
254 |
216.5 |
22 |
8 |
23.9 |
| 6 |
DN150 |
279 |
241.5 |
22 |
8 |
25.4 |
DN150 |
279 |
241.5 |
22 |
8 |
25.4 |
| 8 |
DN200 |
343 |
298.5 |
22 |
8 |
28.6 |
DN200 |
343 |
298.5 |
22 |
8 |
28.6 |
| 10 |
DN250 |
406 |
362.5 |
25 |
12 |
30.2 |
DN250 |
406 |
362.5 |
25 |
12 |
30.2 |
| 12 |
DN300 |
483 |
432 |
25 |
12 |
31.8 |
DN300 |
483 |
432 |
25 |
12 |
31.8 |
| 14 |
DN350 |
533 |
476.5 |
29 |
12 |
35 |
DN350 |
533 |
476.5 |
29 |
12 |
35 |
| 16 |
DN400 |
597 |
539.5 |
29 |
16 |
36.6 |
DN400 |
597 |
539.5 |
29 |
16 |
36.6 |
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