法兰连接方法
Flange connection method
法兰连接就是把两个管道、管件或器材，先各自固定在一个法兰盘上，两个法兰盘之间，加上法兰垫，用螺栓紧固在一起，完成了连接。有的管件和器材已经自带法兰盘，也是属于法兰连接。法兰连接是管道施工的重要连接方式。 法兰连接使用方便，能够承受较大的压力。 在工业管道中，法兰连接的使用十分广泛。在家庭内，管道直径小，而且是低压，看不见法兰连接。如果在一个锅炉房或者生产现场，到处都是法兰连接的管道和器材。
Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively. Flange gasket is added between the two flanges and bolted together to complete the connection. Some pipe fittings and equipment have their own flange, also belong to flange connection. Flange connection is an important connection method in pipeline construction. Flange connection is easy to use and can bear large pressure. In industrial pipeline, flange connection is widely used. In the home, the pipe diameter is small, and is low pressure, flange connection is not visible. If in a boiler room or production site, there are flange connected pipes and equipment everywhere.
按照连接方式法兰连接种类可分为：板式平焊法兰、带颈平焊法兰、带颈对焊法兰、承插焊法兰、螺纹法兰、法兰盖、带颈对焊环松套法兰、平焊环松套法兰、环槽面法兰及法兰盖、大直径平板法兰、大直径高颈法兰、八字盲板、对焊环松套法兰等。
According to the connection mode, flange connection types can be divided into: plate type flat welding flange, neck flat welding flange, neck butt welding flange, socket welding flange, threaded flange, flange cover, loose sleeve flange with neck butt welding ring, slip on ring flange, ring groove face flange and flange cover, large diameter flat flange, large diameter high neck flange, eight type blind plate, butt welding ring loose sleeve flange, etc.