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Couplings and Half-Couplings

Dimensions Socket Weld Couplings ASME B16.11

Dimensions NPS 1/2 to 4 - Class 3000

Ball Long Pattern
NPS
Socket Bore
Depth Socket
Bore DIA
Socket wall THK
B
J
D
C
1/2
21.95
21.70
10
16.6
15
4.65
4.10
3/4
27.30
27.05
13
21.7
20.2
4.90
4.25
1
34.05
33.80
13
27.4
25.9
5.70
5.00
1¼
42.80
42.55
13
35.8
34.3
6.05
5.30
1½
48.90
48.65
13
41.7
40.1
6.35
5.55
2
61.35
61.10
16
53.5
51.7
6.95
6.05
2½
74.20
73.80
16
64.2
61.2
8.75
7.65
3
90.15
89.80
16
79.5
46.4
9.50
8.30
4
115.80
115.45
19
103.8
100.7
10.70
9.35
NPS
B
J
D
C
Socket Bore
Depth Socket
Bore DIA
Socket wall THK
Ball Long Pattern
NPS
Laying lengths
Coupling
E
Half coupling
F
1/2
9.5
22.5
3/4
9.5
23.5
1
13
29
1¼
13
30
1½
13
32
2
19
41
2½
19
42.5
3
19
44.5
4
19
47.5
NPS
Coupling E
Half coupling
F
Laying lengths

Dimensions NPS 1/2 to 2 - Class 6000

Ball Long Pattern
NPS
Socket Bore
Depth Socket
Bore DIA
Socket wall THK
B
J
D
C
1/2
21.95
21.70
10
12.5
11
5.95
5.20
3/4
27.30
27.05
13
16.3
14.8
6.95
6.05
1
34.05
33.80
13
21.5
19.9
7.90
6.95
1¼
42.80
42.55
13
30.2
28.7
7.90
6.95
1½
48.90
48.65
13
34.7
33.2
8.90
7.80
2
61.35
61.10
16
43.6
42.1
10.90
9.50
NPS
B
J
D
C
Socket Bore
Depth Socket
Bore DIA
Socket wall THK
Ball Long Pattern
NPS
Laying lengths
Coupling
E
Half coupling
F
1/2
9.5
22.5
3/4
9.5
23.5
1
13
29
1¼
13
30
1½
13
32
2
19
41
NPS
Coupling E
Half coupling
F
Laying lengths

General notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • Socket Bore (B) - Maximum and Minimum dimensions.
  • Bore Diameter (D) - Maximum and Minimum dimensions.
  • Socket wall thickness - (C) - Average of Socket wall thickness.
  • Dimensional tolerances laying lengths - (E & F)
    NPS 1/2 and NPS 3/4 = +/- 1.5 mm
    NPS 1 to NPS 2 = +/- 2 mm
    NPS 2½ to NPS 4 = +/- 2.5 mm

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