Flange is a disk-shaped part, z is common in pipeline engineering, flanges are used in pairs. In pipeline engineering, the flange is mainly used for pipeline connection. In the pipeline that needs to be connected, a variety of installation of a piece of flange, low-pressure pipeline can use silk

Carbon steel flange another layer of meaning: according to the national standard requirements of the size, tolerance range, etc. production of the flange, as distinguished from the flange is not according to the standard size of the production of the flange is also known as the second standard