What is a socket weld?

What is a socket weld?

A Socket Weld 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.

What is socket weld flange?

Socket-weld pipe flanges are typically used on smaller sizes of high pressure pipes. These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe.

What is a half coupling?

Half Coupling is used for small bore branching from a vessel or large bore pipe. It can be threaded or socket type. It has a socket or thread end on only one side. A socket weld half coupling can be directly welded to large bore pipe, to make a branch connection.

What is better butt weld or socket weld?

Socket weld (the fillet weld) resists around 1/2 the strength of butt welding. So it is mainly used for small pipeline (Small Bore Piping) with diameters NPS 2 or smaller. Butt weld keeps better strength, good for high pressure or high temperature pipelines.

What is difference between socket weld and butt weld?

Socket welding can be used for pipes with small diameters, and it is generally applied to pipes or pipe fittings whose diameters are less than DN50. Butt welding is widely used for pipes with big and small diameters, and threaded welding or socket welding is used for pipes with small diameters.

Can two fittings be welded together?

You can/may weld two fittings (elbow to elbow) or a fitting to a Weld Neck Flange WITHOUT a pup piece. You can/may “trim” an elbow (to a different angle) and weld it to another elbow or WN Flange WITHOUT a pup piece.

What is the difference between a weldolet and an Threadolet?

A threadolet has the same basic design as a weldolet. However the main difference is the fitting has a female threaded connection to link to the branch connection. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe.

What is the difference between full and half coupling?

Differences between Full Coupling and Half Coupling The full coupling has both ends of threaded or socket welded connection but the Half coupling is only threaded or socket weld at one end, and the other end is welded type.