Application And Application Scope Of Welding Flange

Application and application scope of welding flange ,welding flange In pipeline engineering, flange plate is mainly used in pipe connection. In the pipe that needs to be connected, various installation of a piece of butt welding flange, low pressure pipe can be used by wire butt welding flange, 4 kg of pressure above the use of welding flange. Add gasket between two counterweld flanges and tighten with bolts. Flanges of different pressures have different thicknesses and use different bolts. Water pumps and valves, when connected with the pipes, and the parts of these equipment, are also made into the corresponding flange shape, also known as the flange connection. Connecting parts that are bolted together in the periphery of two planes are generally called "flanges", such as the connection of ventilation pipes, which can be called "flange type parts". But this connection is only a partial part of the equipment, such as the flange and the pump connection, it is not good to call the pump "butt welding flange class parts". The welding flange has the corresponding stiffness and elasticity requirements, not easy to deformation, good sealing, widely used. Reasonable counterwelding thinning transition. The distance between the joint and the joint is large, and the joint has no temperature deformation after welding. Complex bell-shaped structure is suitable for high pressure or temperature fluctuation or high temperature, high pressure and low temperature pipes, generally used to connect pipes and valves with PN greater than 2.5MPa; it is also used to transport expensive flammable and explosive medium pipes. The welding flange has different production specifications in use and production. According to the corresponding specifications, the practical application value and effect of the welding flange can be guaranteed. Production and performance specifications of butt welding flanges: national standard, American standard, Japanese standard, German standard, Italian standard. Chemical Industry, Mechanical and Pressure Vessel Department. Large-scale application of high-pressure butt welding flange: boiler, pressure vessel, petroleum, chemical industry, shipbuilding, pharmaceutical, metallurgy, machinery, food and other industries.