(also called flange flange flange or flange. A part that is connected to each other. Connecting to pipe ends. There are holes on the flange, wear bolts, the two flange connect. Gasket seal between flanges. Flanges (pipe fittings flanged) refers to the pipe fittings with flanges (flanges or flanges). It can be made by casting, and can also be made of thread connection or welding. Flange connection (flange, joint) by a pair of flanges, a gasket and a number of bolts and nuts. Gaskets are placed in between the cover of the two laws Lanmi, tighten the nut, the gasket surface pressure reaches a certain value the deformation, and filled with dense cover on the surface uneven, thus making the connection does not leak tight. Some pipe fittings and equipment have own flange, but also belong to the flange connection. Flange connection is an important connection way of pipeline construction. Flange connection is convenient to use, able to withstand greater pressure. In industrial pipelines, the use of flange connections is very wide. In the family, the pipe diameter is small, moreover is the low pressure, can not see the flange connection. If you are in a boiler room or in the production site, all the pipes and equipment are connected to the flange.