Pipe fittings are connectors used to join sections of piping in plumbing, heating, and industrial systems. These fittings ensure leak-proof, durable connections and are available in various shapes and materials, including elbows, tees, and reducers. Used in industries such as construction, oil and gas, and water treatment, pipe fittings are essential for the efficient flow of fluids and gases. They are made from materials like copper, stainless steel, and PVC for durability and corrosion resistance.