本标准等效采用国际标准ISO6162《液压分体法兰》与美国机动工程师协会标准SAEJ518和德国西马克公司标准SN532,其尺寸可以互换。
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1、A型--附接法兰的型式和尺寸(见图1表1)
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表1
公称通径 |
工作压力
MPa max |
Do
max |
d
max |
A |
T |
L |
M |
螺钉
GB70(8.8) |
O型密封圈GB3451.1 |
mm |
in |
3000PSI法兰 |
15 |
1/2 |
21 |
20 |
14 |
17.5 |
38.1 |
30 |
24.3 |
M8×25 |
19×3.55 |
20 |
3/4 |
21 |
30 |
20 |
22.3 |
47.6 |
35 |
32.2 |
M10×30 |
25×3.55 |
25 |
1 |
21 |
38 |
28 |
26.2 |
52.4 |
40 |
38.5 |
M10×30 |
32.5×3.55 |
32 |
11/4 |
21 |
42 |
33 |
30.2 |
58.7 |
45 |
43.7 |
M10×35 |
37.5×3.55 |
40 |
11/2 |
21 |
48 |
42 |
35.7 |
69.9 |
50 |
50.8 |
M12×35 |
47.5×3.55 |
50 |
2 |
21 |
60 |
52 |
42.9 |
77.8 |
60 |
62.8 |
M12×35 |
56×3.55 |
65 |
21/2 |
17.5 |
76 |
65 |
50.8 |
88.9 |
70 |
74.9 |
M12×40 |
69×3.55 |
80 |
3 |
14 |
89 |
81 |
61.9 |
106.4 |
80 |
90.9 |
M16×45 |
85×3.55 |
100 |
4 |
3.5 |
114 |
106 |
77.8 |
130.2 |
80 |
115 |
M16×50 |
112×3.55 |
125 |
5 |
3.5 |
140 |
132 |
92.1 |
152.4 |
80 |
140.5 |
M16×55 |
136×3.55 |
6000PSI法兰 |
15 |
1/2 |
41 |
20 |
14 |
18.2 |
40.5 |
40 |
24.6 |
M8×30 |
19×3.55 |
20 |
3/4 |
41 |
30 |
20 |
23.8 |
50.8 |
45 |
32.5 |
M10×35 |
25×3.55 |
25 |
1 |
41 |
38 |
28 |
27.8 |
57.2 |
50 |
38.8 |
M12×40 |
32.5×3.55 |
32 |
11/4 |
41 |
42 |
33 |
31.8 |
66.7 |
55 |
44.5 |
M14×45 |
37.5×3.55 |
40 |
11/2 |
41 |
48 |
42 |
36.5 |
79.4 |
60 |
51.6 |
M16×50 |
47.5×3.55 |
50 |
2 |
41 |
60 |
52 |
44.5 |
96.8 |
70 |
67.6 |
M20×60 |
56×3.55 |
65 |
21/2 |
32 |
89 |
65 |
58.7 |
123.8 |
75 |
89.5 |
M24×8 |
69×3.55 |
80 |
3 |
32 |
114 |
81 |
71.4 |
152.4 |
80 |
114.5 |
M30×100 |
85×3.55 |
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2、B型--连接法兰的型式和尺寸(见图2和表2)
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表2
公称通径 |
工作压力
MPa max |
Do
max |
d
max |
A |
T |
L |
M |
螺母
GB6170 |
螺钉
GB70(8.8) |
O型密封圈GB3451.1 |
mm |
in |
3000PSI法兰 |
15 |
1/2 |
21 |
20 |
14 |
17.5 |
38.1 |
60 |
24.3 |
M8 |
M8×40 |
19×3.55 |
20 |
3/4 |
21 |
30 |
20 |
22.3 |
47.6 |
70 |
32.2 |
M10 |
M10×40 |
25×3.55 |
25 |
1 |
21 |
38 |
28 |
26.2 |
52.4 |
80 |
39.5 |
M10 |
M10×45 |
32.5×3.55 |
32 |
11/4 |
21 |
42 |
33 |
30.2 |
58.7 |
90 |
43.7 |
M10 |
M10×45 |
37.5×3.55 |
40 |
11/2 |
21 |
48 |
42 |
35.7 |
69.9 |
100 |
50.8 |
M12 |
M12×50 |
47.5×3.55 |
50 |
2 |
21 |
60 |
52 |
42.9 |
77.8 |
120 |
62.8 |
M12 |
M12×50 |
56×3.55 |
65 |
21/2 |
17.5 |
76 |
65 |
50.8 |
88.9 |
140 |
74.9 |
M16 |
M16×60 |
69×3.55 |
80 |
3 |
14 |
89 |
81 |
61.9 |
106.4 |
160 |
90.9 |
M16 |
M16×70 |
85×3.55 |
100 |
4 |
3.5 |
114 |
106 |
77.8 |
130.2 |
160 |
115 |
M16 |
M16×80 |
112×3.55 |
125 |
5 |
3.5 |
140 |
132 |
92.1 |
152.4 |
160 |
140.5 |
M16 |
M16×80 |
136×3.55 |
6000PSI法兰 |
15 |
1/2 |
41 |
20 |
14 |
18.2 |
40.5 |
80 |
24.6 |
M8 |
M8×45 |
19×3.55 |
20 |
3/4 |
41 |
30 |
20 |
23.8 |
50.8 |
90 |
32.5 |
M10 |
M10×50 |
25×3.55 |
25 |
1 |
41 |
38 |
28 |
27.8 |
57.2 |
100 |
38.8 |
M12 |
M12×65 |
32.5×3.55 |
32 |
11/4 |
41 |
42 |
33 |
31.8 |
66.7 |
110 |
44.5 |
M14 |
M14×70 |
37.5×3.55 |
40 |
11/2 |
41 |
48 |
42 |
36.5 |
79.4 |
120 |
51.6 |
M16 |
M16×80 |
47.5×3.55 |
50 |
2 |
41 |
60 |
52 |
44.5 |
96.8 |
140 |
67.6 |
M20 |
M20×100 |
56×3.55 |
65 |
21/2 |
32 |
89 |
65 |
58.7 |
123.8 |
150 |
89.5 |
M24 |
M24×120 |
69×3.55 |
80 |
3 |
32 |
114 |
81 |
71.4 |
152.4 |
160 |
114.5 |
M30 |
M30×140 |
85×3.55 |
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3、其它连接型式见图3~图6,相关尺寸见表1和表2。 |
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图3 C型--不带接管的
连接法兰 |
图4 D型--带法兰盖的
连接法兰 |
图5 E型--带法兰的
附接法兰 |
图6 F型--不带接管的
附接法兰 |
法兰尺寸见图7和表3 |
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表3
公称通径
DN |
工作压力
MPa |
A |
T |
M |
L1 |
L3 |
L4 |
L5 |
L6 |
L7 |
d1 |
d2 |
R |
3000PSI法兰 |
15 |
21 |
17.5 |
38.1 |
24.3 |
54 |
22 |
8 |
19 |
13 |
6.2 |
9 |
31 |
8 |
20 |
21 |
22.3 |
47.6 |
32.2 |
65 |
25 |
10 |
22 |
14 |
6.2 |
11 |
38.9 |
9 |
25 |
21 |
26.2 |
52.4 |
38.5 |
70 |
28.5 |
12 |
22 |
14 |
7.5 |
11 |
45.3 |
9 |
32 |
21 |
30.2 |
58.7 |
43.7 |
80 |
35.5 |
14 |
24 |
16 |
7.5 |
11 |
51.6 |
10 |
40 |
21 |
35.7 |
69.9 |
50.8 |
94 |
40.5 |
17 |
25 |
16 |
7.5 |
13.5 |
61.1 |
12 |
50 |
21 |
42.9 |
77.8 |
62.8 |
102 |
47.5 |
20.5 |
26 |
16 |
9 |
13.5 |
72.3 |
12 |
65 |
17.5 |
50.8 |
88.9 |
76.9 |
115 |
49.5 |
24.5 |
38 |
19 |
9 |
13.5 |
84.9 |
13 |
80 |
14 |
61.9 |
106.4 |
90.9 |
135 |
64.5 |
30 |
41 |
21 |
9 |
17.5 |
102.4 |
14 |
100 |
3.5 |
77.8 |
130.2 |
115 |
163 |
72.5 |
38 |
35 |
24 |
10.7 |
17.5 |
127.8 |
16 |
125 |
3.5 |
92.1 |
152.4 |
140.5 |
184 |
81.5 |
45 |
41 |
30 |
10.7 |
17.5 |
153.2 |
16 |
6000PSI法兰 |
15 |
41 |
18.2 |
40.5 |
24.6 |
56 |
23 |
8 |
22 |
16 |
7.2 |
9 |
32.5 |
8 |
20 |
41 |
23.8 |
50.8 |
32.5 |
71 |
29 |
11 |
28 |
19 |
8.2 |
11 |
42 |
10 |
25 |
41 |
27.8 |
57.2 |
38.8 |
81 |
34 |
13 |
33 |
24 |
9.0 |
13.5 |
48.4 |
12 |
32 |
41 |
31.8 |
66.7 |
44.5 |
95 |
38 |
15 |
38 |
27 |
9.8 |
15.5 |
54.8 |
14 |
40 |
41 |
36.5 |
79.4 |
51.6 |
113 |
46.5 |
17 |
43 |
30 |
12.0 |
17.5 |
64.3 |
17 |
50 |
41 |
44.5 |
96.8 |
67.6 |
133 |
56 |
21 |
52 |
37 |
12.0 |
22 |
80.2 |
18 |
65 |
32 |
58.7 |
123.8 |
89.5 |
175 |
74 |
28 |
- |
45 |
20.0 |
26 |
108.5 |
25 |
80 |
32 |
71.4 |
152.4 |
114.5 |
215 |
88 |
35 |
- |
55 |
25.0 |
32 |
132.5 |
31 |
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焊接头和法兰盖的型式和尺寸见图8~图10和表4 |
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图8 不带O型密封圈的焊接头 |
图9 带O型密封圈的焊接接头 |
图10 带O型密封圈的法兰盖 |
表4
公称通径
DN |
工作压力
MPa |
d1 |
d2 |
d3
max |
L1 |
L2 |
L3 |
推荐管子尺寸 |
(A)
d4×S |
(B)
d4×S |
3000PSI法兰 |
15 |
21 |
30.1 |
24 |
14 |
30 |
13 |
6.8 |
20×2.5 |
20×30 |
20 |
21 |
38.1 |
31.5 |
20 |
35 |
14 |
6.8 |
25×3.0 |
25×3.0 |
25 |
21 |
44.4 |
38 |
28 |
40 |
14 |
8 |
30×3.0 |
30×4.0 |
32 |
21 |
50.8 |
43 |
33 |
45 |
16 |
8 |
38×3.0 |
38×4.0 |
40 |
21 |
60.3 |
50 |
42 |
50 |
16 |
8 |
48×2.6 |
48×5.0 |
50 |
21 |
71.0 |
62 |
52 |
60 |
16 |
9.6 |
60×2.9 |
60×5.6 |
65 |
17.5 |
84.1 |
74.5 |
65 |
70 |
19 |
9.6 |
76×2.9 |
76×7.0 |
80 |
14 |
101.6 |
89 |
81 |
80 |
21 |
9.6 |
89×3.2 |
89×3.6 |
100 |
3.5 |
127 |
114 |
106 |
80 |
24 |
11.3 |
114×3.6 |
114×3.6 |
125 |
3.5 |
152.4 |
140 |
132 |
80 |
30 |
11.3 |
140×4.0 |
140×3.6 |
6000PSI法兰 |
15 |
41 |
31.7 |
24 |
14 |
40 |
16 |
7.8 |
20×3.0 |
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20 |
41 |
41.3 |
32 |
20 |
45 |
19 |
8.8 |
25×4.0 |
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25 |
41 |
47.6 |
38 |
28 |
50 |
24 |
9.5 |
30×5.0 |
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32 |
41 |
54.0 |
44 |
33 |
55 |
28 |
10.3 |
38×6.0 |
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40 |
41 |
63.5 |
51 |
42 |
60 |
30 |
12.6 |
48×8.0 |
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50 |
41 |
79.4 |
67 |
52 |
70 |
37 |
12.6 |
60×10.0 |
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65 |
32 |
108 |
89 |
65 |
75 |
45 |
20.5 |
76×12.5 |
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80 |
32 |
132 |
114 |
81 |
80 |
55 |
25.5 |
89×14.2 |
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标记示例:
公称通径 40mm, A型6000PSI系列法兰:
法兰 A 40-6 JB/ZQ
4187-97
(标准的附录A)
与法兰连接的平面的尺寸和要求
A1与分体式高压法兰连接的平面要求和相关尺寸见图A1和表1。
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"M"表示公制螺纹连接的字符。如设备在国内使用,可能不标志"M"字符:如果出口设备,则应标记"M",该字符采用钢印打记,其位置必须放在O型密封圈区域之外。
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表1
公称能径DN |
工作压力MPa |
d30
-1.5 |
j |
c
± |
r |
u
±0.25 |
v
±0.25 |
w±0.25 |
x
min |
y |
z |
d1 |
L1 |
AA |
BB |
CC |
3000PSI法兰 |
15 |
21 |
12.7 |
54 |
38.1 |
8 |
19.05 |
8.75 |
17.5 |
33 |
46 |
23 |
M8×1.25 |
12.5 |
56 |
52 |
49 |
20 |
21 |
19.1 |
65 |
47.6 |
9 |
23.8 |
11.15 |
22.3 |
41 |
52 |
26 |
10×1.5 |
16.5 |
68 |
61 |
55 |
25 |
21 |
25.4 |
70 |
52.4 |
9 |
26.2 |
13.1 |
26.2 |
48 |
59 |
29 |
10×1.5 |
16.5 |
72 |
67 |
61 |
32 |
21 |
31.8 |
79 |
58.7 |
10 |
29.35 |
15.1 |
30.2 |
54 |
73 |
37 |
10×1.5 |
19.5 |
82 |
78 |
75 |
40 |
21 |
38.1 |
94 |
69.9 |
12 |
34.95 |
17.85 |
35.7 |
64 |
83 |
41 |
12×1.75 |
19.5 |
96 |
90 |
85 |
50 |
21 |
50.8 |
102 |
77.8 |
12 |
38.9 |
21.45 |
42.9 |
76 |
97 |
49 |
12×1.75 |
19.5 |
104 |
102 |
99 |
65 |
17.5 |
63.5 |
114 |
88.9 |
13 |
44.45 |
25.4 |
50.8 |
89 |
109 |
54 |
12×1.75 |
21.5 |
117 |
114 |
111 |
80 |
14 |
76.2 |
135 |
106.4 |
14 |
53.2 |
30.95 |
61.9 |
106 |
131 |
66 |
16×2 |
24.5 |
137 |
136 |
133 |
100 |
3.5 |
101.6 |
162 |
130.2 |
16 |
65.1 |
38.9 |
77.8 |
132 |
152 |
76 |
16×2 |
26.5 |
165 |
160 |
155 |
125 |
3.5 |
127 |
184 |
152.4 |
16 |
76.2 |
46.05 |
92.1 |
151 |
181 |
90 |
16×2 |
27.5 |
186 |
185 |
183 |
6000PSI法兰 |
15 |
41 |
12.7 |
56 |
40.5 |
8 |
20.25 |
9.1 |
18.2 |
38 |
48 |
24 |
8×1.25 |
14.5 |
59 |
56 |
53 |
20 |
41 |
19.1 |
71 |
50.8 |
10 |
25.4 |
11.9 |
23.8 |
48 |
60 |
30 |
10×1.5 |
16.5 |
75 |
70 |
66 |
25 |
41 |
25.4 |
81 |
57.2 |
12 |
28.6 |
13.9 |
27.8 |
54 |
70 |
35 |
12×1.75 |
16.5 |
84 |
80 |
75 |
32 |
41 |
31.8 |
95 |
66.6 |
14 |
33.3 |
15.9 |
31.8 |
60 |
78 |
39 |
14×2 |
18.5 |
99 |
90 |
83 |
40 |
41 |
38.1 |
113 |
79.3 |
17 |
39.65 |
18.25 |
36.5 |
70 |
95 |
48 |
16×2 |
20.5 |
116 |
108 |
101 |
50 |
41 |
50.8 |
133 |
96.8 |
18 |
48.4 |
22.25 |
44.5 |
86 |
114 |
57 |
20×2.5 |
23.5 |
137 |
128 |
120 |
65 |
32 |
63.5 |
175 |
123.8 |
26 |
61.9 |
29.35 |
58.7 |
115 |
150 |
75 |
24×3 |
35.5 |
178 |
167 |
156 |
80 |
32 |
76.2 |
215 |
152.4 |
31 |
76.2 |
35.7 |
71.4 |
139 |
178 |
89 |
30×3.5 |
45.5 |
219 |
200 |
184 |
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