Socket Weld Half Coupling 3000LB A105

When you need a reliable branch connection for high-pressure systems, the Socket Weld Half Coupling 3000LB delivers the strength and precision a piping system demands. Forged from ASTM A105 carbon steel, this fitting creates secure outlet connections from a larger bore pipe or vessel, standing up to pressures as high as 3000 PSI depending on operating temperature. Unlike a full coupling, this half coupling features just one socket end, making it purpose-built for branch and instrument tappings. The recessed socket accepts a smaller branch pipe secured with a fillet weld, while the plain end attaches directly to the run pipe, header, or vessel wall through butt-welding or fillet-welding. This single-socket design keeps installation straightforward while maintaining the structural integrity your system needs at every connection point.

Built for small bore piping and demanding high-pressure, high-temperature applications, this half coupling gives you a dependable outlet port that won't compromise under stress. Whether you're tapping into a main header for instrumentation or adding a branch line to an existing run, this fitting provides the heavy-duty performance that critical piping systems require.

Summary: 

• A high-pressure forged carbon steel pipe fitting used to create branch connections (take-offs) from a larger-bore pipe or vessel
• One end features a recessed socket/bore where a smaller branch pipe is inserted and secured with a fillet weld
• The other end is plain/flat and designed to be direct-welded (butt-welded or fillet-welded) straight onto the wall of a run pipe, header, or pressure vessel
• Unlike a full coupling (which connects two pipes end-to-end with sockets on both sides), a half coupling has only one socket end, acting as an outlet connection port
• A heavy-duty, high-pressure rating (equivalent to up to 3000 PSI / ~206 bar depending on temperature)
• ASTM A105

Applications: 
Common uses include;

• Branching/insturment tappings
• High pressure & high temperature systems
• Small bore piping