A "Flange" is a flat, typically circular disc with evenly spaced mounting holes around its perimeter. It is used to connect or attach two separate components, such as pipes, valves, pumps, or other equipment, in various industries and applications.

Flanges serve as a crucial interface between two separate components in a system. They are often used to connect pipes or pieces of equipment, such as valves or pumps, allowing for easy assembly and disassembly when necessary.

Flanges often incorporate a gasket or sealing material between the two flange faces to create a tight and secure seal, preventing leaks and maintaining the integrity of the system.