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Concept of SW Couplings
The socket weld couplingis a pipe connection piece machined by round steel or steel ingot die forging. Its connection form is socket welding (Socket Welding-SW), and the steel pipe is inserted into the socket hole for welding. Therefore, it is called “Socket weld”.
The common product categories of socket fittings are: socket cap, socket 45° elbow, socket 90° elbow, socket equal diameter cross, socket reducing cross, socket equal diameter tee, Socket reducing tees, socket pipe clamps, socket unions, etc.
Specification of SW Couplings
Type | Full and Half Coupling |
Shape | Straight and Reducing Coupling |
Size Range | 1/8″ – 4″ / DN6 – DN100 |
Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
Standard | ASME B16.11, BS3799 |
Carbon Steel | ASTM A105 / A105N |
Low Temp Carbon Steel | ASTM A350 LF2/LF3 |
Pipeline Steel | ASTM A694 F42 / 46 / 56 / 60 / 65 |
Alloy Steel | ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / F22 |
Stainless Steel | ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317,347,904L |
Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
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