What does the term 'flange' refer to in piping?

The term 'flange' in piping refers to a flat piece of metal that is used to connect two pipes together. Flanges are typically circular disks with holes for bolts, allowing them to be securely fastened to one another. This connection method creates a strong, stable joint that can accommodate the stresses of fluid flow. Flanges also allow for easy disassembly of piping systems for maintenance or modifications. Their design enables alignment of the pipes while ensuring a tight seal when paired with a gasket, which further enhances their effectiveness in preventing leaks. This structural feature is essential for the integrity of many piping systems in various applications, including HVAC, plumbing, and industrial processes.