平焊法兰连接是管道施工的重要连接方式.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. Flat welding flange connection is an important connection mode of pipeline construction. Flange connection is the two pipes, fittings or equipment, fixed on a flange, a first between the two flanges, plus the flange gasket, bolt fastening together, complete the connection. Some have attached flange, pipe fittings and equipment is also belong to the flange connection. 　　平焊法兰分螺纹连接(丝接)法兰和焊接法兰.低压小直径有丝接法兰,高压和低压大直径都是使用焊接法兰,不同压力的法兰盘的厚度和连接螺栓直径和数量是不同的.根据压力的不同等级,法兰垫也有不同材料,从低压石棉垫、高压石棉垫到金属垫都有.法兰连接使用方便,能够承受较大的压力. Flat welding flange threaded connection (screwed) flange and welding flange. Low-pressure flange small diameter wire, high pressure and low pressure of large diameter used welding flange, joint bolt diameter and thickness of flange plate of different pressure and quantity is different. According to the different levels of pressure, flange gasket also have different material, from the low pressure asbestos pad, high-pressure asbestos pad to metal pads. Flange connection is convenient to use, can withstand greater pressure.  　　在工业管道中,平焊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. In industrial piping, flat welding flange connection is widely used. Within the family, pipe diameter is small, and it is low voltage, invisible flange connection. If in a boiler room or production site, the flange connection of pipes and equipment are everywhere.