Long Neck Flange

Advantages of long neck weld flange

Reduce stress concentration at the connection point. Installation is more complicated due to the need for square cutting.

High durability and strength, suitable for extreme pressure and temperature conditions. Higher cost compared to standard flanges.

Customizable length, flexible for different applications. Non-standard lengths require customization, which prolongs delivery time.

Suitable for direct use in tanks and large components without additional pipe sections. Precise alignment is required during welding, which increases setup time.

Flange length and pipe diameter types

Long Neck Flanges are available in a variety of lengths, including 9 inches, 12 inches and 16 inches, and the length of our flanges can be highly customized according to application requirements. Larger nominal sizes and pressure ratings usually correspond to longer lengths, which ultimately depends on your needs

Troubleshooting Tips for Long Weld Neck Flanges

• Professional Welding: For a reliable connection, always hire a skilled professional to perform flange welding.

• Ensure Precise Alignment: Proper alignment during installation is critical to preventing leaks and minimizing stress on weld neck flanges.

• Choose Corrosion Resistant Materials: Choose materials such as stainless steel or coated alloys to increase their durability in corrosive environments.

• Regular Maintenance: Schedule regular inspections to detect early signs of wear or corrosion.

What is the difference between a socket weld flange and a weld neck flange?

Socket weld flanges are designed to be welded to the outside of the pipe, while Long Neck Flanges are welded to the inside of the pipe, creating a smooth flow path. Weld neck flanges are ideal for high-pressure systems.

What are the Disadvantages of Weld Neck Flanges?

Compared to other types of flanges, weld neck flanges are more expensive and time-consuming to install, mainly because of the higher precision requirements for alignment and welding.

Can two weld neck flanges be welded together?

Yes, two weld neck flanges can be welded together to meet specific application requirements, but the process requires precision welding technology to ensure a reliable and strong joint.

Send us your purchase requirements and we will provide you with a customized solution!Advantages and Disadvantages of Long Weld Neck Flange