It is usually used on pipelines with large diameters. Usually, the pipeline is kept open at the end of the flange, and if necessary, it is replaced with a blind plate of the same thickness at the other end to cut off the pipeline.
The company pursues the accuracy and refinement of manufacturing, and constantly improves its lean manufacturing equipment, including every component. The company strictly implements ISO, GB, NB, JB, HG, AISI, ASTM, JIS, BS and other production standards.
With neck flange is a special term, divided into with neck flat welding flange and with neck butt welding flange. International standard for pipe flange can be summarized as two different and non-interchangeable pipe flange systems.
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