Blind flange, also known as blind flange, is actually called blind plate. It is a type of flange connection. In fact, it is a flange without a hole in the middle. One of its functions is to block the end of the pipe, and the second is to facilitate the removal of debris in the pipe during maintenance. In terms of blocking, it has the same function as the head and the pipe cap. However, the head cannot be disassembled, while the blind flange is fixed with bolts and is very easy to disassemble. Blind flanges are made of carbon steel, alloy steel, stainless steel, plastic, etc.