WN FLANGE

High neck butt welding flange mainly has higher neck, and its stiffness and bearing capacity have been improved. Its purpose is to transfer the pressure of the pipeline, so as to reduce the high stress concentration in France. The butt welding flange, also known as high neck flange, has greater rigidity and is suitable for occasions with high pressure and temperature. The main production processes include integral forging, forging, manufacturing and casting, rolling, etc. The main production equipment has lathe, drilling machine, CNC machine tools and so on. Application scope: boiler pressure vessel, petroleum, chemical industry, shipbuilding, pharmaceutical, metallurgy, machinery, stamping elbow food and other industries. It is convenient to install on site, and the process of welding seam rubbing can be omitted. According to the standard, there are mainly flat butt welded steel pipe flange - gb9115.1, convex face welded steel pipe flange - gb9115.6.            advantage:            The connection is not easy to deform, the sealing effect is good, and it is widely used in the pipeline with large fluctuation of temperature or pressure, high temperature, high pressure and low temperature, and also used for transporting expensive medium, flammable and explosive medium and toxic gas.            Disadvantages:            The neck butt welding flange is bulky, bulky and expensive, so it is difficult to install and locate, so it is easier to bump during transportation.