Customized DIN Class150 Stainless/Stainless Steel Butt Weld So Slip on Flange

       WN flange refers to a flange with a cone neck and butt welded with the cylinder or pipe. It is an integral flange.
Welding neck flange is a kind of pipe fitting, it refers to the flange with neck and a round pipe transition and butt welded with the pipe. Butt welding flange is not easy to deform, seal well, widely used, has the corresponding rigidity and elasticity requirements and reasonable butt welding thinning transition, welding distance from the joint surface is large, the joint surface is free from welding temperature deformation.
Butt welding flange is not easy to deform, sealed well, widely used, has the corresponding rigidity and elasticity requirements and reasonable butt welding thinning transition, welding distance from the joint surface is large, the joint surface from welding temperature deformation, it takes a more complex cough body structure, suitable for pressure or temperature fluctuations of the pipeline or high temperature, high pressure and low temperature pipeline, Generally used for PN greater than 2.5MPa pipe and valve connection;
       Welding Neck Flange is flanges that designed to be joined to a piping system by butt welding.  This kind of flange include lots of specification.
WN flange is generally made by forging or forging process. When the steel plate or section steel manufacturing, meet the following requirements: 1, butt welding flange should be ultrasonic inspection, no layered defects; 2. Should be cut into strips along the direction of steel rolling, welded into a ring through bending, and the surface of the steel to form a cylinder of the ring. Steel plate shall not be machined directly into neck butt welding flange; 3. The butt weld of the ring should adopt full penetration weld; 4. The butt weld of the ring shall be subjected to post-welding heat treatment, and X-ray or ultrasonic inspection shall be carried out, and X-ray inspection shall meet the II requirements of JB4730, and ultrasonic inspection shall meet the I requirements of JB4730.

Company profile
     Cangzhou Youlong Pipe Fitting Manufacturing Co., LTD was established in January 2019.The factory is located in the Mengcun, the capital of hardware fittings,Cangzhou city, Hebei Province .The location of the company has convenient transportation.The registered capital of the company is 120 million yuan. The factory covers an area of more than 235,000 square meters. Our company has more than 70 sets of large-scale production equipment, the workshop area is 116000 square meters,integrates production,processing and testing in-house. The company is mainly engaged in the processing and manufacturing of pipe fittings, pipe and pipe fittings anti-corrosion insulation, operates pipe fittings, pipes, flanges, steel pipes and other products. The factory has passed ISO 9001 quality system certification and has various qualifications such as special pipe fitting production license.Our products sell well in Russia, Spain, Canada, Germany, France and other more than 100 countries and regions. Since its establishment, the company has always focused on the production of high quality products. In order to ensure the quality of raw materials and products, we have set up our own quality inspection and R&D team with 32 engineers of all kinds.And we have our own laboratory and a complete quality control system.This also makes our products in power generation, petroleum, chemical, natural gas, shipbuilding, heating, paper, metallurgy and other industries are very popular, won the praise of customers at home and abroad. Our company will continue to take "advanced management and innovative concept" as the enterprise spirit, "quality first, customer first" as the purpose, "research and development, production, quality control" as the core strength, to provide customers around the world with high quality pipe fittings products.

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