Product Description: Weld Neck Flange is a high-strength flange with a long neck, which is connected to the pipeline through full penetration butt welding. …
Weld Neck Flange (WN Flange)
Weld Neck Flange is a high-performance pipe flange designed for demanding industrial piping systems. With a long tapered hub and butt-welding connection, it provides excellent strength, stability, and stress distribution under high pressure and high temperature conditions.
Its smooth transition design between the flange and pipe helps reduce stress concentration and improves the overall reliability of the pipeline system. It is widely applied in industries where safety, sealing performance, and durability are critical.
Product Features
• Strong Welding Connection
The butt weld design creates a continuous connection between the flange and pipe, ensuring better load distribution and reducing the risk of leakage.
• Excellent Pressure & Temperature Resistance
Suitable for high-pressure and high-temperature applications, available in pressure classes from Class 150 to Class 2500.
• Reliable Sealing Performance
Available with sealing faces such as Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) to meet different piping requirements.
• Premium Material Options
Manufactured from carbon steel, stainless steel, and alloy steel materials with strict quality control to ensure consistent performance.
Manufacturing & Quality Control
Haiyuan Pipe Fittings follows international standards including ASME B16.5 and related specifications. Each flange is inspected through material testing, dimensional inspection, and quality verification to ensure reliable performance.
Applications
Weld Neck Flanges are widely used in:
• Oil & Gas Pipeline Systems
• Petrochemical Plants
• Power Generation Facilities
• Chemical Processing Industries
• High Pressure Industrial Piping
Why Choose Haiyuan WN Flange
✔ Factory Direct Supply
✔ Stable Quality Control
✔ Customized Dimensions Available
✔ Competitive Price & Fast Delivery