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The ASME B16. 5 Weld Neck Flange is produced with a long tapered hub, which transitions gradually over to the wall thickness from a pipe or fitting. The long tapered hub present on the ASME B16. 5 Carbon Steel Weld Neck Flange is what provides an important reinforcement to this component.
The specifications produced by our company also include:ANSI ASME B16.5 Class 900 raised face welding neck flangesChina American Standard Flange factory
website:http://www.longmenforging.com/american-standard-flange/