A blind flange is a type of flange used in piping systems to close the end of a pipe or to create a sealed connection. Unlike other flanges that allow for the connection of pipes, valves, or equipment, a blind flange has no central opening. This makes it ideal for isolating sections of a pipeline or for future expansion. Blind flanges are typically made from materials like steel, stainless steel, or plastic, depending on the application and the environment. They come in various sizes and pressure ratings, ensuring compatibility with different piping systems. Proper installation is crucial to maintain system integrity and prevent leaks.