Flanges, also known as flange plates or hubs, are components used to connect pipes together at their ends. They feature holes for bolts that secure two flanges in place, and a gasket is used to seal the joint. Flanges are a disk-shaped part commonly used in pipeline engineering and are always used in pairs. In pipeline construction, flanges are primarily used for pipe connections. In situations where...

Flange
At the ends connecting two pipes, a flange is installed on each. Low-pressure pipes can use threaded flanges, while those above 4 kg pressure should use welded flanges. A gasket is added between the two flanges and then securely fastened with bolts.
Flanges of different pressures have varying thicknesses and require different bolts.
Pumps and valves, when connected to pipes, the local parts of these equipment are also shaped into corresponding flange patterns, also known as flange connections.
Components connected and sealed by bolts around two planes are generally referred to as "flanges," such as in the case of ventilation pipe connections. Such parts can be termed "flange-type components."
A threaded flange is a type of flange. The threaded flange connection structure is a component assembly, consisting of a pair of flanges, several bolts, nuts, and a gasket.