ASTM B151 C70600 ANSI B16.5/B16.47 Copper Nickel Weld Neck Flanges are precision-engineered industrial fittings designed for high-performance piping systems requiring exceptional corrosion resistance and mechanical strength.

Weld neck flanges feature a tapered hub design that effectively transfers stress to connected pipes, minimizing high-stress concentration at the flange base. These forged components are welded directly to piping systems and are available in two configurations: standard pipe-compatible designs and longer versions for process plant applications.

Long weld neck flanges serve as high-hub components specifically engineered for pressure vessel applications where they function as reinforced nozzles. The extended neck eliminates the need for additional pipe sections and welding seams, providing integral reinforcement and enhanced structural integrity.

Reducing weld neck flanges feature a neck with decreasing diameter to accommodate smaller pipe sizes. This design eliminates the need for separate reducer fittings, saving valuable space in confined installations while maintaining optimal flow characteristics when installed with proper directional orientation.

• Eliminates need for separate reducer fittings
• Reduces overall installation length by approximately 50%
• Ideal for space-constrained applications
• Maintains optimal flow characteristics with proper installation