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ASME B16.11 SW & THD 45° Elbow
November 23, 2021
Technical Drawing
Technical drawing of ASME B16.11 45° elbow with socket welding ends. A: center-to-bottom of socket; B: socket bore diameter; C: socket wall thickness; D: bore diameter of elbow; J: socket depth; G: body wall thickness.
ASME B16.11 45° elbow with threaded ends. H: outside diameter of band; G: body wall thickness; C: center-to-end of 45° elbow; B: minimum length of perfect thread; L2: effective length of external thread.
The ASME B16.11 45° elbow is used to change the flow direction by an angle of 45° within the piping system. It can be furnished with two socket welding ends, two threaded ends, or one socket welding end and one threaded end. The SW 45° elbow is available in pressure ratings Class 3000, 6000, and 9000; THD 45° elbow is available in pressure rating Class 2000, 3000, and 6000.
| ASME B16.11 Forged Fittings (SW & THD) | ||
|---|---|---|
| 90° Elbow | 45° Elbow | Cross |
| Tee | Coupling | Half Coupling |
| Boss | Cap | Couplet |
| Street Elbow* | Plug* | Bushing* |
Dimensions of ASME B16.11 SW 45° Elbows
| NPS | B max. | B min. | A 3000# | A 6000# | A 9000# |
|---|---|---|---|---|---|
| 1/8" | 11.2 | 10.8 | 8.0 | 8.0 | - |
| 1/4" | 14.6 | 14.2 | 8.0 | 8.0 | - |
| 3/8" | 18.0 | 17.6 | 8.0 | 11.0 | - |
| 1/2" | 22.2 | 21.8 | 11.0 | 12.5 | 15.5 |
| 3/4" | 27.6 | 27.2 | 13.0 | 14.0 | 19.0 |
| 1" | 34.3 | 33.9 | 14.0 | 17.5 | 20.5 |
| 1-1/4" | 43.1 | 42.7 | 17.5 | 20.5 | 22.5 |
| 1-1/2" | 49.2 | 48.8 | 20.5 | 25.5 | 25.5 |
| 2" | 61.7 | 61.2 | 25.5 | 28.5 | 28.5 |
| 2-1/2" | 74.4 | 73.9 | 28.5 | - | - |
| 3" | 90.3 | 89.8 | 32.0 | - | - |
| 4" | 115.7 | 115.2 | 41.0 | - | - |
| NPS | G 3000# min. | G 6000# min. | G 9000# min. | J min. |
|---|---|---|---|---|
| 1/8" | 2.41 | 3.15 | - | 9.5 |
| 1/4" | 3.02 | 3.68 | - | 9.5 |
| 3/8" | 3.20 | 4.01 | - | 9.5 |
| 1/2" | 3.73 | 4.78 | 7.47 | 9.5 |
| 3/4" | 3.91 | 5.56 | 7.82 | 12.5 |
| 1" | 4.55 | 6.35 | 9.09 | 12.5 |
| 1-1/4" | 4.85 | 6.35 | 9.70 | 12.5 |
| 1-1/2" | 5.08 | 7.14 | 10.15 | 12.5 |
| 2" | 5.54 | 8.74 | 11.07 | 16.0 |
| 2-1/2" | 7.01 | - | - | 16.0 |
| 3" | 7.62 | - | - | 16.0 |
| 4" | 8.56 | - | - | 19.0 |
| NPS | 3000# | 6000# | 9000# | |||
| D max. | D min. | D max. | D min. | D max. | D min. |
|
| 1/8" | 7.6 | 6.1 | 4.8 | 3.2 | - | - |
| 1/4" | 10.0 | 8.5 | 7.1 | 5.6 | - | - |
| 3/8" | 13.3 | 11.8 | 9.9 | 8.4 | - | - |
| 1/2" | 16.6 | 15.0 | 12.5 | 11.0 | 7.2 | 5.6 |
| 3/4" | 21.7 | 20.2 | 16.3 | 14.8 | 11.8 | 10.3 |
| 1" | 27.4 | 25.9 | 21.5 | 19.9 | 16.0 | 14.4 |
| 1-1/4" | 35.8 | 34.3 | 30.2 | 28.7 | 23.5 | 22.2 |
| 1-1/2" | 41.6 | 40.1 | 34.7 | 33.2 | 28.7 | 27.2 |
| 2" | 53.3 | 51.7 | 43.6 | 42.1 | 38.9 | 37.4 |
| 2-1/2" | 64.2 | 61.2 | - | - | - | - |
| 3" | 79.4 | 76.4 | - | - | - | - |
| 4" | 103.8 | 100.7 | - | - | - | - |
| NPS | 3000# | 6000# | 9000# | |||
| C max. | C min. | C max. | C min. | C max. | C min. |
|
| 1/8" | 3.18 | 3.18 | 3.96 | 3.43 | - | - |
| 1/4" | 3.78 | 3.30 | 4.60 | 4.01 | - | - |
| 3/8" | 4.01 | 3.50 | 5.03 | 4.37 | - | - |
| 1/2" | 4.67 | 4.09 | 5.97 | 5.18 | 9.35 | 8.18 |
| 3/4" | 4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 |
| 1" | 5.69 | 4.98 | 7.92 | 6.93 | 11.38 | 9.96 |
| 1-1/4" | 6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.62 |
| 1-1/2" | 6.35 | 5.54 | 8.92 | 7.80 | 12.70 | 11.12 |
| 2" | 6.93 | 6.04 | 10.92 | 9.50 | 13.84 | 12.12 |
| 2-1/2" | 8.76 | 7.67 | - | - | - | - |
| 3" | 9.52 | 8.30 | - | - | - | - |
| 4" | 10.69 | 9.53 | - | - | - | - |
Dimensions of ASME B16.11 THD 45° Elbows
| NPS | C 2000# | C 3000# | C 6000# | H 2000# | H 3000# | H 6000# |
|---|---|---|---|---|---|---|
| 1/8" | 17 | 17 | 19 | 22 | 22 | 25 |
| 1/4" | 17 | 19 | 22 | 22 | 25 | 33 |
| 3/8" | 19 | 22 | 25 | 25 | 33 | 38 |
| 1/2" | 22 | 25 | 28 | 33 | 38 | 46 |
| 3/4" | 25 | 28 | 33 | 38 | 46 | 56 |
| 1" | 28 | 33 | 35 | 46 | 56 | 62 |
| 1-1/4" | 33 | 35 | 43 | 56 | 62 | 75 |
| 1-1/2" | 35 | 43 | 44 | 62 | 75 | 84 |
| 2" | 43 | 44 | 52 | 75 | 84 | 102 |
| 2-1/2" | 52 | 52 | 64 | 92 | 102 | 121 |
| 3" | 64 | 64 | 79 | 109 | 121 | 146 |
| 4" | 79 | 79 | 79 | 146 | 152 | 152 |
| NPS | G 2000# | G 3000# | G 6000# | B | L2 |
|---|---|---|---|---|---|
| 1/8" | 3.18 | 3.18 | 6.35 | 6.4 | 6.7 |
| 1/4" | 3.18 | 3.30 | 6.60 | 8.1 | 10.2 |
| 3/8" | 3.18 | 3.51 | 6.98 | 9.1 | 10.4 |
| 1/2" | 3.18 | 4.09 | 8.15 | 10.9 | 13.6 |
| 3/4" | 3.18 | 4.32 | 8.53 | 12.7 | 13.9 |
| 1" | 3.68 | 4.98 | 9.93 | 14.7 | 17.3 |
| 1-1/4" | 3.89 | 5.28 | 10.59 | 17.0 | 18.0 |
| 1-1/2" | 4.01 | 5.56 | 11.07 | 17.8 | 18.4 |
| 2" | 4.27 | 7.14 | 12.09 | 19.0 | 19.2 |
| 2-1/2" | 5.61 | 7.65 | 15.29 | 23.6 | 28.9 |
| 3" | 5.99 | 8.84 | 16.64 | 25.9 | 30.5 |
| 4" | 6.55 | 11.18 | 18.67 | 27.7 | 33.0 |
Masses of 45° Elbows (SW & THD)
| NPS | 3000# Mass kg | 6000# Mass kg | 9000# Mass kg |
|---|---|---|---|
| 1/8" | 0.09 | 0.12 | 0.23 |
| 1/4" | 0.09 | 0.15 | 0.31 |
| 3/8" | 0.11 | 0.29 | 0.50 |
| 1/2" | 0.20 | 0.40 | 0.72 |
| 3/4" | 0.28 | 0.65 | 1.25 |
| 1" | 0.44 | 0.96 | 1.75 |
| 1-1/4" | 0.65 | 1.30 | 2.66 |
| 1-1/2" | 0.84 | 2.20 | 4.57 |
| 2" | 1.30 | 3.01 | 5.84 |
| 2-1/2" | 2.50 | 5.20 | 9.77 |
| 3" | 4.15 | 7.50 | 14.33 |
| 4" | 12.50 | 13.25 | 19.62 |
| NPS | 2000# Mass kg | 3000# Mass kg | 6000# Mass kg |
|---|---|---|---|
| 1/8" | 0.07 | 0.12 | 0.17 |
| 1/4" | 0.09 | 0.14 | 0.27 |
| 3/8" | 0.12 | 0.28 | 0.39 |
| 1/2" | 0.20 | 0.36 | 0.66 |
| 3/4" | 0.28 | 0.54 | 1.02 |
| 1" | 0.42 | 0.90 | 1.35 |
| 1-1/4" | 0.62 | 1.16 | 2.26 |
| 1-1/2" | 0.78 | 1.86 | 3.08 |
| 2" | 1.32 | 3.01 | 5.06 |
| 2-1/2" | 2.61 | 4.73 | 7.74 |
| 3" | 4.26 | 7.35 | 14.35 |
| 4" | 10.20 | 15.00 | 25.50 |
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