Elbow fittings, as the name suggests, are used for changing the direction of fluid flow in a piping system. They are shaped like a curve and are available in different angles such as 45 degrees and 90 degrees. Elbow fittings are essential in pipe systems that need to change directions without the need for additional piping to be installed. Elbow fittings are available in different materials, such as steel, brass, and plastic, depending on the specific requirements of the industry or application.

Tee fittings have a shape that resembles the letter 'T' and are used to connect three pipes or sections of piping together. They can also be used to branch off a pipeline and redirect the flow of fluid in a different direction. Tee fittings are available in different sizes and materials, and they can also be threaded or flanged. Flanged tee fittings are usually used in pipe systems that require heavy-duty connections.