Flanges & Adapters
Weld Neck Flanges
Weld Neck Flanges are designed for permanent welding connections in piping systems. Their design supports reliable connections in applications involving pressure, temperature, and demanding operating conditions.
- Long tapered hub for gradual stress transfer
- Butt-weld connection with a smooth, continuous bore
- Raised-face or ring-joint sealing faces
Product overview
Weld Neck Flanges are designed for permanent welding connections in piping systems. Their design supports reliable connections in applications involving pressure, temperature, and demanding operating conditions.
The long tapered hub transfers stress from the flange into the pipe and reduces stress concentration at the base of the flange. Because the flange is butt-welded to the pipe, the joint has a smooth, continuous bore that limits turbulence and erosion — making weld neck flanges a preferred choice for high-pressure, high- or low-temperature and cyclic service.
Size, pressure rating, material and end connections are sourced to your specification. Share your requirement for a suitable option.
Key features
- Long tapered hub for gradual stress transfer
- Butt-weld connection with a smooth, continuous bore
- Raised-face or ring-joint sealing faces
- Available in carbon steel, alloy steel and stainless steel grades
Typical applications
- Oil and gas production and process piping
- Pipelines, refineries and petrochemical plants
- High-pressure and temperature-cycling service
