There are so many kinds of flange products
There are many kinds of flange products, flange can be divided according to the connection method, integral flange, flat welding flange, butt welding flange, loose sleeve flange and screw thread flange, these are the most common flanges. Overall flange (IF) is generally used in a large pressure pipe, it is a flange connection mode, and have a long neck, mostly using a whole casting molding, and the use of materials are generally carbon steel, stainless steel, etc. Flat welding flange is also known as the tower welding flange, it refers to the connection with the container or pipe is completed by welding, this flat welding flange has the characteristics of easy assembly, cheap price, mainly used in the pressure and vibration are relatively small pipe. For welding flange is also known as the high neck flange, the difference between the welding flange and other flange is a prominent high neck, prominent high neck wall thickness will gradually with height and docking pipe wall thickness and diameter, this will increase the strength of the flange, for welding flange is mainly used in large environmental changes, such as high temperature and high temperature and low temperature pipeline. Pine flange is also known as live flange. The flange used in some nonferrous metals and stainless steel pipe, connection is also achieved by welding, because it can rotate is easy to aim at bolt holes, so used in large diameter pipe and often need to remove the connection, but loose flange pressure is not high, so also can only be used for low pressure pipe connection. Threaded flange plate has thread, which requires the connecting pipe also has external thread to achieve connection, it is a non-welding flange, so compared with other welding flange has the advantages of convenient installation and disassembly, in high or low use of temperature environment is not suitable for the use of thread flange, because the thread by heat expansion and cold contraction after easy pipe leakage.
