What Are The Different Types Pipe Fittings: There are various types of pipe fittings used in plumbing and piping systems, each with a specific function. Here are some of the most common types: Elbow:  In a pipeline, elbows are used to change the direction of fluid flow. They are available at several angles, including 45 and 90 degrees. Tee:  Three pipes are joined at a straight angle...