A pipe socket is a fitting that attaches to the end of a pipe. It has a hole in the center that allows another piece of pipe to be inserted into it. The two pieces are then held together by a clamp or by welding. Pipe sockets are available in a variety of different sizes and materials, depending on the application. Pipe sockets are most commonly used in plumbing and irrigation applications. They provide a quick and easy way to connect two pieces of pipe, and can be easily removed if necessary.