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Fittings Guide

Dimensions SW Reducing Couplings ASME B16.11

Dimensions NPS 1/2 to 2 Class 3000

NPS Socket Bore Depth Socket
J
Bore dia
B1 B2 B1 B2 D
3/4 - 1/2 27.30
27.05
21.95
21.70
13 10 16.6
15
1 - 3/4 34.05
33.80
27.30
27.05
13 13 21.7
20.2
1 - 1/2 34.05
33.80
21.95
21.70
13 10 16.6
15
1.1/4 - 1 42.80
42.55
34.05
33.80
13 13 27.4
25.9
1.1/2 - 1 48.90
48.65
34.05
33.80
13 13 27.4
25.9
1.1/2 - 3/4 48.90
48.65
27.30
27.05
13 13 21.7
20.2
1.1/2 - 1/2 48.90
48.65
21.95
21.70
13 10 16.6
15
2 - 1.1/2 61.35
61.10
48.90
48.65
16 13 41.7
40.1
2 - 1 74.20
73.80
34.05
33.80
16 13 27.4
25.9
NPS Length Coupling Diameter Coupling
Q R
3/4 - 1/2 35 36
1 - 3/4 38.1 45.2
1 - 1/2 38.1 45.2
1.1/4 - 1 38.1 55.1
1.1/2 - 1 38.1 60
1.1/2 - 3/4 38.1 60
1.1/2 - 1/2 38.1 60
2 - 1.1/2 51.3 74.9
2 - 1 51.3 74.9
Socket Weld Reducing Coupling

Dimensions NPS 1/2 to 2 Class 6000

NPS Socket Bore Depth Socket
J
Bore dia
B1 B2 B1 B2 D
3/4 - 1/2 27.30
27.05
21.95
21.70
13 10 12.5
11
1 - 3/4 34.05
33.80
27.30
27.05
13 13 16.3
14.8
1 - 1/2 34.05
33.80
21.95
21.70
13 10 12.5
11
1.1/4 - 1 42.80
42.55
34.05
33.80
13 13 21.5
19.9
1.1/2 - 1 48.90
48.65
34.05
33.80
13 13 21.5
19.9
1.1/2 - 3/4 48.90
48.65
27.30
27.05
13 13 16.3
14.8
1.1/2 - 1/2 48.90
48.65
21.95
21.70
13 10 12.5
11
2 - 1.1/2 61.35
61.10
48.90
48.65
16 13 34.7
33.2
2 - 1 74.20
73.80
34.05
33.80
16 13 21.5
19.9
NPS Length Coupling Diameter Coupling
Q R
3/4 - 1/2 35 40.1
1 - 3/4 38.1 50
1 - 1/2 38.1 50
1.1/4 - 1 38.1 57.9
1.1/2 - 1 38.1 65
1.1/2 - 3/4 38.1 65
1.1/2 - 1/2 38.1 65
2 - 1.1/2 51.3 82
2 - 1 51.3 82
Socket Weld Reducing Coupling
General notes:
  • Dimensions are in millimeters unless otherwise indicated.
  • Socket Bore (B1 / B2) - Maximum and Minimum dimensions.
  • Bore Diameter (D) - Maximum and Minimum dimensions.
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