Socket Weld Coupling
Socket weld coupling is a short piece of pipe with socket bore at end, which is manufactured in acordance to forged steel fittings of ASME B16.11. Couplings are used to help extend or terminate runs and to change pipe sizes and are designed to provide good flow characteristics. We supplied many A105 carbon steel and 316 stainless steel socket weld fittings to customers.
Socket Weld Fittings are a family of high pressure forging fittings that used only in conjunction with ANSI Pipe and are available in the same size range.Even though there are some similarities between the shapes of the two welds, but socket weld is still considered to be different from a fillet weld.
How Many Types of Socket Weld Coupling
Straight Coupling
Reducing Coupling
Socket Weld Full Coupling
Socket Weld Half Coupling
Carbon Steel Socket Weld Coupling
Stainless Steel Socket Weld Coupling
Specification of ASME B16.11 & BS3799 Socket Weld Fittings
| Type | Elbow, Tee, Cross, Coupling, Cap, Lateral |
| Shape | Straight and Reducing Fittings |
| Size Range | 1/8" - 4" / DN6 - DN100 |
| Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
| Carbon Steel | ASTM A105 / A105N, A350 LF2/LF3, ASTM A694 F42 / F46 / F56 / F60 / F65 |
| Alloy Steel | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92 |
| Stainless Steel | ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
ASME B16.11 Socket Weld Coupling Dimensions
|
DN |
NPS |
B |
D | C | |||||||
| 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | ||||||
| 6 | 1/8 | 10.9 | 6.1 | 3.2 | - | 3.18 | 3.18 | 3.96 | 3.43 | - | - |
| 8 | 1/4 | 14.3 | 8.5 | 5.6 | - | 3.78 | 3.30 | 4.60 | 4.01 | - | - |
| 10 | 3/8 | 17.7 | 11.8 | 8.4 | - | 4.01 | 3.50 | 5.03 | 4.37 | - | - |
| 15 | 1/2 | 21.9 | 15.0 | 11.0 | 5.6 | 4.67 | 4.09 | 5.97 | 5.18 | 9.53 | 8.18 |
| 20 | 3/4 | 27.3 | 20.2 | 14.8 | 10.3 | 4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 |
| 25 | 1 | 34.0 | 25.9 | 19.9 | 14.4 | 5.69 | 4.98 | 7.92 | 6.93 | 11.38 | 9.96 |
| 32 | 11/4 | 42.8 | 34.3 | 28.7 | 22.0 | 6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.62 |
| 40 | 11/2 | 48.9 | 40.1 | 33.2 | 27.2 | 6.35 | 5.54 | 8.92 | 7.80 | 12.7 | 11.12 |
| 50 | 2 | 61.2 | 51.7 | 42.1 | 37.4 | 6.93 | 6.04 | 10.92 | 9.50 | 13.84 | 12.12 |
| 65 | 21/2 | 73.9 | 61.2 | - | - | 8.76 | 7.62 | - | - | - | - |
| 80 | 3 | 89.9 | 76.4 | - | - | 9.52 | 8.30 | - | - | - | - |
| 100 | 4 | 115.5 | 100.7 | - | - | 10.69 | 9.35 | - | - | - | - |
1) The even thickness around the socket bore shall not be less than the average value, the thickness at partial areas can be the min. one.
2) Considering the tolerance of outside diameter of pipe, the diameters of some socket bore can be a little larger than the ones specified in ASME B16.11.
3) When the sizes of the connecting pipes aren t conformed to the ones specified in this catalog, the sizes of the connecting pipes shall be provided in the purchase specification.
4) When the fittings are reducing,the structure sizes shall be same as the ones of the straight fittings and B J D shall be machined per the according reducing ends.
5) Fittings can also be manufactured as the mixed connectings of SW and THRD.
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