Aflangeis a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification.Flangesare usually welded or screwed. Flanged joints are made by bolting together twoflangeswith a gasket between them to provide a seal.Aflangeis an external or internalridge, orrim(lip), forstrength, as the flange of anironbeamsuch as anI-beamor aT-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or on thelens mountof acamera; or for a flange of arail carortramwheel. Thus flanged wheels are wheels with a flange on one side to keep the wheels from running off therails. The term "flange" is also used for a kind of tool used to form flanges.Pipeswith flanges can be assembled and disassembled easily.