sch壁厚等级对照表
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承插焊管件（一）Socket Welding Fittings
GB/T 14383、SH 3410、HG/T 21634、ASME B16.11、JIS B2316
公称通径Nominal Pipe Size 承插孔深度
Depth of
Socket
壁厚
Wall Thickness
中心至承插孔底
Center to Bottom of Socket
A
C min
90°弯头、三通、四通
90°Elbow、Tee、Cross
45°弯头
45°Elbow
DN NPS J min SCH80
3000
SCH160
6000
XXS
9000
SCH80
3000
SCH160
6000
XXS
9000
SCH80
3000
SCH160
6000
XXS
9000
6 8 10 1/8
1/4
3/8
10
10
10
3.2
3.3
4.0
3.5
4.0
4.4
---
---
---
11
11
14
11
14
16
---
---
---
8
8
8
8
8
11
---
---
---
15 20 25 1/2
3/4
1
10
13
13
4.5
5.0
5.6
6.0
7.0
8.0
9.5
10.0
11.5
16
19
22
19
22
27
25
28
32
11
13
14
13
14
18
16
19
21
32 40 50 11/4
11/2
2
13
13
16
6.3
6.4
7.0
8.0
9.0
11.0
12.0
13.0
14.0
27
32
38
32
38
41
35
38
54
18
21
25
21
25
29
22
25
28
65 80 100 21/2
3
4
16
16
19
8.9
10.0
10.0
12.5
13.8
---
---
---
---
41
57
67
57
64
---
---
---
---
29
32
41
32
35
---
---
---
---
·本表列出的为承插焊管件各相同部分尺寸，不同标准规定的接管尺寸及承插孔径d1、流通孔径d2尺寸见承插焊管件的接管外径、承插孔径及流
通孔尺寸表。
·当产品为异径时，流通孔d2的尺寸用异径公称通径相对的d2尺寸、中心至承插孔底的尺寸A与同径管件相同。
·The above list shows sizes of the same parts of SW fittings.The sizes of different codes pipes,socket diameter d1 and bore diameter d2 refer to the list of the pipe outside diameter,socket diameter and bore diameter of SW fittings.
·As to the reducing fittings,size of the bore diameter d2 applies to the relevant size d2 of the reducing norminal pipe size,size of center to the
bottom of socket A issame to the straight fittings,
承插焊和螺纹活接头Unions of Socket-Welding&Threaded
HG/T 21634、MSS SP-83
公称通径Nominal Pipe Size
外径
End DIA
壁厚
Wall Thickness
螺母厚
度
Nut
螺帽每英寸
的螺纹扣数
Threads Per
inch
球面凸缘
厚度
Male
Flange
定位口高
度
Bearin
公称装配长度
Length Assem
Nominat
结构尺寸
Laying
Length
流通孔径
Bore D min C min
G min H F min h min L
E d2
DN NPS 承插焊
Socket
螺纹
Thread
承插
焊
Socket
螺纹
Thread
承插焊
Socket
螺纹
Thread
6 8 10 1/8
1/4
3/8
21.8
21.8
25.9
14.7
19.1
22.9
3.2
3.3
3.5
2.5
3.1
3.2
3.2
3.2
3.5
16
16
14
3.2
3.2
3.5
1.5
1.5
1.5
41
41
46
21
21
24
7.4
10.9
13.9
15 20 25 1/2
3/4
1
31.2
37.1
45.5
27.7
33.5
41.4
4.1
4.3
5.0
3.8
4.0
4.6
3.7
4.1
4.5
14
11
11
3.7
4.1
4.6
1.5
1.8
1.9
49
57
62
24
29
30
17.5
22.2
28.4
32 40 50 11/4
11/2
2
54.9
61.5
75.2
50.6
57.2
70.1
5.3
5.6
6.1
4.9
5.1
5.6
5.2
5.6
6.4
10
10
10
5.4
5.9
6.6
2.2
2.3
2.7
71
77
86
37
38
39
36.5
42.4
53.9
65 80 21/2
3
91.7
109.2
85.3
102.4
7.7
8.3
7.1
7.7
7.1
8.0
8
8
7.5
8.3
3.1
3.6
102
109
56
59
65.3
79.9
·活接头适用于3000及3000以下级别；管件级别代号与管子壁厚等级的关系见后。
·接管尺寸承插孔径d1、流通孔径d1、流通孔径d2和承插孔深度J与ASME B16.11 规定相同。
·Unions only applie to the class 3000 and below it; the relations of pressure grade and schedule refer to hereafter.
·Dimensions of pipe,socket diameter d1,bore diameter d2 and the length ofthe depth of socket J are same to requirements of ASME B16.11.