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本標(biāo)準(zhǔn)規(guī)定了卡套式對接直通管接頭，適用于油、氣及一般腐蝕性介質(zhì)的管路系統(tǒng)。 |
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標(biāo)記示例：
公稱壓力J級，管子外徑D0為14mm的卡套對接直通管接頭：
管接頭J14 GB/T3756.1-1983 |
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管子外徑D0 |
公稱通徑DN |
d5 |
l1≈ |
L≈ |
扳手尺寸 |
e |
e1 |
重 量（kg/100件） |
S |
S1 |
G(25) |
4 |
3 |
25 |
56 |
13 |
15 |
15 |
17.3 |
4.22 |
5 |
3.5 |
4.22 |
6 |
4 |
30.4 |
65 |
16 |
18.5 |
6.63 |
8 |
6 |
36 |
72 |
15 |
18 |
17.3 |
20.8 |
9.52 |
10 |
8 |
38 |
78 |
18 |
21 |
20.8 |
24.2 |
12.2 |
12 |
10 |
39 |
79 |
21 |
24 |
24.2 |
27.7 |
16 |
14 |
12 |
18.5 |
16 |
14 |
40 |
82 |
24 |
27 |
27.7 |
31.2 |
23.5 |
18 |
15 |
41 |
83 |
27 |
30 |
31.2 |
34.6 |
39.9 |
20 |
17 |
44 |
91 |
30 |
34 |
34.6 |
39.3 |
37.7 |
22 |
19 |
53 |
99 |
34 |
36 |
39.3 |
41.6 |
49.4 |
25 |
22 |
103 |
36 |
41 |
41.6 |
47.3 |
65.9 |
28 |
24 |
55 |
107 |
41 |
47.3 |
67.9 |
32 |
27 |
57 |
111 |
46 |
50 |
53.1 |
57.7 |
99.3 |
34 |
30 |
113 |
71.3 |
40 |
34 |
58 |
114 |
50 |
55 |
57.7 |
63.5 |
112. |
42 |
36 |
55 |
60 |
63.5 |
69.3 |
139 |
J(40) |
6 |
3 |
38 |
74 |
16 |
18 |
18.5 |
20.8 |
11.0 |
8 |
5 |
76 |
18 |
21 |
20.8 |
24.2 |
13.4 |
10 |
7 |
41 |
83 |
21 |
24 |
24.2 |
27.7 |
18.2 |
12 |
8 |
27.7 |
21.7 |
14 |
10 |
42 |
86 |
24 |
27 |
31.2 |
31.2 |
28 |
16 |
12 |
27 |
30 |
34.6 |
34.4 |
18 |
14 |
45 |
91 |
30 |
34 |
34.6 |
39.3 |
40.4 |
20 |
16 |
55 |
109 |
34 |
36 |
39.3 |
41.6 |
56.2 |
22 |
18 |
57 |
114 |
36 |
41 |
41.6 |
47.3 |
74.7 |
25 |
20 |
61 |
119 |
41 |
47.3 |
79.4 |
28 |
22 |
63 |
122 |
46 |
53.1 |
99.3 |
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