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ASME B16.9 Reducers

ASME B16.9 Conc. & Ecc. reducers, carbon steel.

Conc. & Ecc. reducers, ASME B16.9, after sandblasting.

Dimensions of ASME B16.9 Reducers

The technical drawing of ASME B16.9 reducers, concentric & eccentric.

The technical drawing of ASME B16.9 reducers, concentric & eccentric.

Nominal SizeOutside Diameter
at Bevel
Outside Diameter
at Bevel
End to End
NPSLarge End
mm.
in.
Small End
mm.
in.
H
mm.
in.
3/4 x 1/226.7
1.05
21.3
0.84
38
1.50
3/4 x 3/826.7
1.05
17.3
0.68
38
1.50
1 x 3/433.4
1.32
26.7
1.05
51
2.00
1 x 1/233.4
1.32
21.3
0.84
51
2.00
1 1/4 x 142.2
1.66
33.4
1.32
51
2.00
1 1/4 x 3/442.2
1.66
26.7
1.05
51
2.00
1 1/4 x 1/242.2
1.66
21.3
0.84
51
2.00
1 1/2 x 1 1/448.3
1.90
42.2
1.66
64
2.50
1 1/2 x 148.3
1.90
33.4
1.32
64
2.50
1 1/2 x 3/448.3
1.90
26.7
1.05
64
2.50
1 1/2 x 1/248.3
1.90
21.3
0.84
64
2.50
2 x 1 1/260.3
2.38
48.3
1.90
76
3.00
2 x 1 1/460.3
2.38
42.2
1.66
76
3.00
2 x 160.3
2.38
33.4
1.32
76
3.00
2 x 3/460.3
2.38
26.7
1.05
76
3.00
2 1/2 x 273.0
2.88
60.3
2.38
89
3.50
2 1/2 x 1 1/273.0
2.88
48.3
1.90
89
3.50
2 1/2 x 1 1/473.0
2.88
42.2
1.66
89
3.50
2 1/2 x 173.0
2.88
33.4
1.32
89
3.50
3 x 2 1/288.9
3.50
73.0
2.88
89
3.50
3 x 288.9
3.50
60.3
2.38
89
3.50
3 x 1 1/288.9
3.50
48.3
1.90
89
3.50
3 x 1 1/488.9
3.50
42.2
1.66
89
3.50
3 1/2 x 3101.6
4.00
88.9
3.50
102
4.00
3 1/2 x 2 1/2101.6
4.00
73.0
2.88
102
4.00
3 1/2 x 2101.6
4.00
60.3
2.38
102
4.00
3 1/2 x 1 1/2101.6
4.00
48.3
1.90
102
4.00
3 1/2 x 1 1/4101.6
4.00
42.2
1.66
102
4.00
4 x 3 1/2114.3
4.50
101.6
4.00
102
4.00
4 x 3114.3
4.50
88.9
3.50
102
4.00
4 x 2 1/2114.3
4.50
73.0
2.88
102
4.00
4 x 2114.3
4.50
60.3
2.38
102
4.00
4 x 1 1/2114.3
4.50
48.3
1.90
102
4.00
5 x 4141.3
5.56
114.3
4.50
127
5.00
5 x 3 1/2141.3
5.56
101.6
4.00
127
5.00
5 x 3141.3
5.56
88.9
3.50
127
5.00
5 x 2 1/2141.3
5.56
73.0
2.88
127
5.00
5 x 2141.3
5.56
60.3
2.38
127
5.00
6 x 5168.3
6.62
141.3
5.56
140
5.50
6 x 4168.3
6.62
114.3
4.50
140
5.50
6 x 3 1/2168.3
6.62
101.6
4.00
140
5.50
6 x 3168.3
6.62
88.9
3.50
140
5.50
6 x 2 1/2168.3
6.62
73.0
2.88
140
5.50
8 x 6219.1
8.62
168.3
6.62
152
6.00
8 x 5219.1
8.62
141.3
5.56
152
6.00
8 x 4219.1
8.62
114.3
4.50
152
6.00
8 x 3 1/2219.1
8.62
101.6
4.00
152
6.00
10 x 8273.0
10.75
219.1
8.62
178
7.00
10 x 6273.0
10.75
168.3
6.62
178
7.00
10 x 5273.0
10.75
141.3
5.56
178
7.00
10 x 4273.0
10.75
114.3
4.50
178
7.00
12 x 10323.8
12.75
273.0
10.75
203
8.00
12 x 8323.8
12.75
219.1
8.62
203
8.00
12 x 6323.8
12.75
168.3
6.62
203
8.00
12 x 5323.8
12.75
141.3
5.56
203
8.00
14 x 12355.6
14.00
323.8
12.75
330
13.00
14 x 10355.6
14.00
273.0
10.75
330
13.00
14 x 8355.6
14.00
219.1
8.62
330
13.00
14 x 6355.6
14.00
168.3
6.62
330
13.00
16 x 14406.4
16.00
355.6
14.00
356
14.00
16 x 12406.4
16.00
323.8
12.75
356
14.00
16 x 10406.4
16.00
273.0
10.75
356
14.00
16 x 8406.4
16.00
219.1
8.62
356
14.00
18 x 16457
18.00
406.4
16.00
381
15.00
18 x 14457
18.00
355.6
14.00
381
15.00
18 x 12457
18.00
323.8
12.75
381
15.00
18 x 10457
18.00
273.0
10.75
381
15.00
*All dimensions are furnished in both SI(metric) units and US Customary units.
*Both concentric & eccentric reducers can be furnished with bell-shaped or conical body. However, the bell-shaped reducer is preferred.
View more specification of ASME B16.9.

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