Product Name：Stainless Steel Welding Neck Flange
It refers to the flange with neck, which has a round pipe and is connected with the pipe by butt welding. Butt welding flanges are not deformed, well sealed, widely used, with corresponding rigid and elastic requirements and reasonable butt welding thinning transition.
Flat welding and butt welding refer to the welding method when the flange and the pipeline are connected. When the flat welding flange is welded, only one side welding is required, and the inner mouth of the pipeline and the flange are not required to be welded. The welding and installation of the butt welding flange need two sides welding of the flange. Therefore, the flat welding flange is generally used for low and medium pressure pipes, and the butt welding flange is used for the connection of medium and high pressure pipes. The butt welding flange is generally at least PN2.5MPa. The butt welding is used to reduce stress concentration, and the general butt welding flange is also called high neck flange Therefore, the installation cost, labor cost and auxiliary material cost of butt welding flange should be high, because there is one more process.
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