A long welding neck flange is a type of flange that has a long tapered hub that is welded to a pipe. The flange also has a flat, circular section that is used to bolt the flange to another flange or piece of equipment. The length of the neck provides reinforcement and reduces stress concentration at the connection point, making it ideal for high-pressure and high-temperature applications.

Long welding neck flanges are typically used in piping systems where there is a need for a high-strength, leak-resistant connection. They are often used in the oil and gas industry, chemical processing, and other industrial applications. The flange's long neck design allows for a smooth transition from the pipe to the flange, minimizing turbulence and reducing erosion and corrosion.

If you have any inquiries about long welding neck flange or any other related products, you can contact SSM directly at the email address provided: sales@ssmsteel.com. They will be able to assist you with any questions or concerns you may have about their products.