PN25带颈对焊钢制管法兰(摘自HG/T 20592—2009) |
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mm |
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公称 尺寸 DN |
钢管外径 法兰焊端外径 A1 |
连接尺寸 |
法兰 厚度 C |
法兰颈 |
法兰 高度 H |
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法兰 外径 D |
螺栓孔中 心圆直径 K |
螺栓孔 直径 L |
螺栓孔 数量 n(个) |
螺栓 Th |
N |
S ≥ |
H1 ≈ |
R |
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A |
B |
A |
B |
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10 |
17.2 |
14 |
90 |
60 |
14 |
4 |
M12 |
16 |
28 |
28 |
1.8 |
6 |
4 |
35 |
15 |
21.3 |
18 |
95 |
65 |
14 |
4 |
M12 |
16 |
32 |
32 |
2.0 |
6 |
4 |
38 |
20 |
26.9 |
25 |
105 |
75 |
14 |
4 |
M12 |
18 |
40 |
40 |
2.3 |
6 |
4 |
40 |
25 |
33.7 |
32 |
115 |
85 |
14 |
4 |
M12 |
18 |
46 |
46 |
2.6 |
6 |
4 |
40 |
32 |
42.4 |
38 |
140 |
100 |
18 |
4 |
M16 |
18 |
56 |
56 |
2.6 |
6 |
6 |
42 |
40 |
48.3 |
45 |
150 |
110 |
18 |
4 |
M16 |
18 |
64 |
64 |
2.6 |
7 |
6 |
45 |
50 |
60.3 |
57 |
165 |
125 |
18 |
4 |
M16 |
20 |
75 |
75 |
2.9 |
8 |
6 |
48 |
65 |
76.1 |
65 |
185 |
145 |
18 |
8 |
M16 |
22 |
90 |
90 |
2.9 |
10 |
6 |
52 |
80 |
88.9 |
89 |
200 |
160 |
18 |
8 |
M16 |
24 |
105 |
105 |
3.2 |
12 |
8 |
58 |
100 |
114.3 |
108 |
235 |
190 |
22 |
8 |
M20 |
24 |
134 |
134 |
3.6 |
12 |
8 |
65 |
125 |
139.7 |
133 |
270 |
220 |
26 |
8 |
M24 |
26 |
162 |
162 |
4.0 |
12 |
8 |
68 |
150 |
168.3 |
159 |
300 |
250 |
26 |
8 |
M24 |
28 |
192 |
190 |
4.5 |
12 |
10 |
75 |
200 |
219.1 |
219 |
360 |
310 |
26 |
12 |
M24 |
30 |
244 |
244 |
6.3 |
16 |
10 |
80 |
250 |
273 |
273 |
425 |
370 |
30 |
12 |
M27 |
32 |
298 |
298 |
7.1 |
18 |
12 |
88 |
300 |
323.9 |
325 |
485 |
430 |
30 |
16 |
M27 |
34 |
352 |
352 |
8.0 |
18 |
12 |
92 |
350 |
355.6 |
377 |
555 |
490 |
33 |
16 |
M30 |
38 |
398 |
420 |
8.0 |
20 |
12 |
100 |
400 |
406.4 |
426 |
620 |
550 |
36 |
16 |
M33 |
40 |
452 |
472 |
8.8 |
20 |
12 |
110 |
450 |
457 |
480 |
670 |
600 |
36 |
20 |
M33 |
46 |
500 |
522 |
8.8 |
20 |
12 |
110 |
500 |
508 |
530 |
730 |
660 |
36 |
20 |
M33 |
48 |
558 |
580 |
10 |
20 |
12 |
125 |
600 |
610 |
630 |
845 |
770 |
39 |
20 |
M36×3 |
58 |
660 |
680 |
11 |
20 |
12 |
125 |