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ASTM A105N Carbon Steel Socket Weld Union MSS SP-83

What is a Socket weld Uninon,what about its speicification and advantage

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What is a SW union?

Socket weld Union is a pipe attachment detail in which a pipe is inserted into a recessed area of a Valve, fitting or flange. In contrast to buttweld fittings, Socket Weld Fittings are mainly used for small Pipe Diameters (Small Bore Piping); Generally for Piping whose Nominal Diameter is NPS 2 or smaller.To join pipe to Valves and Fittings or to other sections of Pipe, Fillet-type seal welds be used. Socket Welded Joints construction is a good choice wherever the benefits of high leakage integrity and great structural strength are important design considerations

Specification of SW union

Size Range 1/8″-3″/DN6-DN80
Pressure Rating Class3000lb
Standard MSS SP-83
Carbon Steel ASTM A150/A150N
Low Tem Carbon Steel ASTM A350 LF2/LF3
Pipeline Steel ASTM A694  F42/46/56/60/65
Alloy Steel ASTM A182 F11/F12/F5/F9/F91/F92
Stinless Steel ASTM A182 F304/304L/304H,316,316L,310S,317,347,904L

Advantages of SW union

Advantages of pipe union:
There are various advantages of pipe unions like:
To provide a leak-proof disconnection point in any piping system.
Used for inserting metering and regulating devices into any plumbing application.
Can connect piping system to vessels.
Can join two pipes of different size together.
Can easily remove the join between two pipes.
Easy to install.


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