High neck flange
advantage:
The connection is not easy to deform, the sealing effect is good, and it is widely used. It is suitable for pipelines with large fluctuations in temperature or pressure or high temperature, high pressure and low temperature pipelines. It is also used for pipelines that transport expensive media, flammable and explosive media, and toxic gases.
Disadvantages:
The necked butt welding flange is bulky, heavy, expensive, and difficult to install and locate, so it is easier to bump during transportation.
Shanxi Haokun flanges specializes in the production of JIS carbon steel welding neck flanges:
carbon steel(CS) JIS B2220 WN 5K
carbon steel(CS) JIS B2220 WN 10K
carbon steel(CS) JIS B2220 WN 16K
carbon steel(CS) JIS B2220 WN 20K
carbon steel(CS) JIS B2220 WN 30K
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