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Concept of SW Couplings
Socket pipe fittings are mainly used in petrochemical, medical and health, electric power, aerospace, military, fire protection, metallurgy, shipbuilding, gas, nuclear power, and environmental protection, which require high pressure pipelines, precision size equipment and other various high voltage field.
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”.
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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