Dimensions-of-butt-welding-concentric-eccentric-reducers-ASME-B16.9
Dimensions-of-butt-welding-concentric-eccentric-reducers-ANSI/ASME-B16.9 .
Dimensions-of-butt-welding-concentric-eccentric-reducers-ANSI-ASME-B16.9 .
NPS
Outside Diameter at Bevel
End-to- End, H
Large End
Small End
3/4×1/2
26.7
21.3
38
3/4×3/8
26.7
17.3
38
1×3/4
33.4
26.7
51
1×1/2
33.4
21.3
1-1/4×1
42.2
33.4
51
1-1/4×3/4
42.2
26.7
1-1/4×1/2
42.2
21.3
1-1/2×1-1/4
48.3
42.2
64
1-1/2×1
48.3
33.4
1-1/2×3/4
48.3
26.7
1-1/2×1/2
48.3
21.3
2×1-1/2
60.3
48.3
76
2×1-1/4
60.3
42.2
2×1
60.3
33.4
2×3/4
60.3
26.7
2-1/2×2
73
60.3
89
2-1/2×1-1/2
73
48.3
2-1/2×1-1/4
73
42.2
2-1/2×1
73
33.4
3×2-1/2
88.9
73
89
3×2
88.9
60.3
3×1-1/2
88.9
48.3
3×1-1/4
88.9
42.2
3-1/2×3
101.6
88.9
102
3-1/2×2-1/2
101.6
73
3-1/2×2
101.6
60.3
3-1/2×1-1/2
101.6
48.3
3-1/2×1-1/4
101.6
42.2
4×3-1/2
114.3
101.6
102
4×3
114.3
88.9
4×2-1/2
114.3
73
4×2
114.3
60.3
4×1-1/2
114.3
48.3
5×4
141.3
114.3
127
5×3-1/2
141.3
101.6
5×3
141.3
88.9
5×2-1/2
141.3
73
5×2
141.3
60.3
6×5
168.3
141.3
140
6×4
168.3
114.3
6×3-1/2
168.3
101.6
6×3
168.3
88.9
6×2-1/2
168.3
73
8×6
219.1
168.3
152
8×5
219.1
141.3
8×4
219.1
114.3
8×3-1/2
219.1
101.6
10×8
273
219.1
178
10×6
273
168.3
10×5
273
141.3
10×4
273
114.3
12×10
323.8
273
203
12×8
323.8
219.1
12×6
323.8
168.3
12×5
323.8
141.3
14×12
355.6
323
330
14×10
355.6
273
14×8
355.6
219.1
14×6
355.6
168.3
16×14
406.4
355.6
356
16×12
406.4
323.8
16×10
406.4
273
16×8
406.4
219.1
18×16
457.2
406.4
381
18×14
457.2
355.6
18×12
457.2
323.8
18×10
457.2
273
20×18
508
457.2
508
20×16
508
406.4
20×14
508
355.6
20×12
508
323.8
22×20
558.8
508
508
22×18
558.8
457.2
22×16
558.8
406.4
22×14
558.8
355.6
24×22
609.6
558.8
508
24×20
609.6
508
24×18
609.6
457.2
24×16
609.6
406.4
26×24
660
610
610
26×22
660
559
26×20
660
508
26×18
660
457
28×26
711
660
610
28×24
711
610
28×20
711
508
28×18
711
457
30×28
762
711
610
30×26
762
660
30×24
762
610
30×20
762
508
32×30
813
762
610
32×28
813
711
32×26
813
660
32×24
813
610
34×32
864
813
610
34×30
864
762
34×26
864
660
342×4
864
610
36×34
914
864
610
36×32
914
713
36×30
914
762
36×26
914
660
36×24
914
610
38×36
965
914
610
38×34
965
864
38×32
965
813
38×30
965
762
38×28
965
711
38×26
965
660
40×38
965
965
610
40×36
1016
914
40×34
1016
864
40×32
1016
813
40×30
1016
762
42×40
1016
1016
610
42×38
1067
965
42×36
1067
914
42×34
1067
864
42×32
1067
813
42×30
1067
762
44×42
1118
1067
610
44×40
1118
1016
44×38
1118
965
44×36
1118
914
46×44
1168
1118
711
46×42
1168
1067
46×40
1168
1016
46×38
1168
965
48×46
1219
1168
711
48×44
1219
1118
48×42
1219
1067
48×40
1219
1016
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