Characteristics of WN Flange

　　The sealing surface forms of WN Flange are:

　　Raised surface (RF), concave surface (FM), convex surface (M), tenon surface (T), groove surface (G), full plane (FF).

　　ASME B16.5 A105 Carbon Steel RF CL300 WN Flange advantage:

　　The connection is not easy to deform, the sealing effect is good, and ASME B16.5 A105 WN Flange is widely used. It is suitable for pipelines with large temperature or pressure fluctuations or pipelines with high temperature, high pressure and low temperature. It is also used for pipelines transporting Expensive media, flammable and explosive media, and toxic gases.

　　ASME B16.5 A105 Carbon Steel RF CL300 WN Flange shortcoming:

　　ASME B16.5 A105 CL300 WN Flanges are bulky, heavy, expensive, and difficult to install and position, so they are more likely to be bumped during transportation.

　　There are two commonly used standard systems for neck butt welding flanges: one is the European system and the other is the American system. The maximum pressure resistance of the ASME B16.5 A105 CL300 WN Flange in the European system is 25Mpa, and the maximum pressure resistance in the American system is 42Mpa.

　　ASME B16.5 A105 CL300 WN Flange is different from flat welding flange in that there is a long and inclined high neck from the welding point of flange and pipe to the flange plate. The wall thickness of this high neck is The gradual transition into the pipe wall thickness along the height direction improves stress discontinuities and therefore increases flange strength.

　　ASME B16.5 A105 CL300 WN Flanges are mainly used in situations with harsh working conditions, such as situations where the flange is subject to large stress or repeated stress changes caused by thermal expansion of the pipeline or other loads, pipelines with large fluctuations in pressure and temperature, or pipelines with high temperatures, high pressures and Pipes with sub-zero temperatures. The butt welding flange is not easy to deform, has good sealing, and is widely used. The nominal pressure is about PN1.0MPa~PN25.0MPa.

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