Share this
Large-diameter flange connection is an important connection method in pipeline construction. Flange connection is to fix two pipe fittings or equipment on a flange plate first, add flange pads between the two flange plates, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment already have their own flanges, which are also flanged connections. Flat welding flanges are divided into threaded connection (wired) flanges and welding flanges. The low-pressure small diameter has a wire flange, and the high-pressure and low-pressure large diameter use welded flanges. The thickness of the flanges and the diameter and number of connecting bolts are different for different pressures. According to different levels of pressure, flange gaskets are also available in different materials, ranging from low-pressure asbestos pads to high-pressure asbestos pads to metal pads. Flange connections are easy to use and can withstand high pressure. In industrial pipelines, flat welding flange connections are widely used. In a boiler room or production site, there are flanged pipes and equipment everywhere