Weld Neck Flanges (WN)
High-Pressure Integrity & Superior Strength for Critical Applications
Weld neck flanges represent the industry standard for high-pressure and high-temperature applications, featuring a long tapered hub that provides exceptional structural strength and stress distribution. The gradual transition from the flange thickness to the pipe wall thickness achieved through the tapered hub significantly reduces stress concentrations, making WN flanges ideal for critical service conditions.
These flanges are designed for butt-welding to pipe, providing a smooth bore and excellent flow characteristics. The weld neck design offers superior fatigue resistance compared to other flange types, making them the preferred choice for cyclic loading applications in power plants, refineries, and chemical processing facilities.
Key Advantages
- Superior strength & fatigue resistance
- Excellent stress distribution
- Smooth bore for optimal flow
- Suitable for extreme conditions
- Easy radiographic examination
- Long service life
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