Made in China ASME B16.5 Weld Neck Raised Face (WNRF) Flange, SS316, 4" SCH40, Class 300
Product Description – Made in China ASME B16.5 Weld Neck Raised Face (WNRF) Flange, SS316, 4" SCH40, Class 300
SSM supplies high-quality ASME B16.5 Weld Neck Raised Face (WNRF) Flanges, manufactured in China from stainless steel 316 (SS316). This austenitic stainless steel contains molybdenum, offering excellent corrosion resistance in chemical, marine, and high-temperature environments.
The Weld Neck Flange features a tapered hub that provides superior reinforcement and stress distribution, reducing the risk of flange or pipe failure under high-pressure conditions. The Raised Face (RF) ensures a leak-proof seal with standard gaskets. The flange is designed for 4-inch SCH40 pipes and rated Class 300, suitable for high-pressure piping systems.
All flanges are forged, machined, and heat-treated according to ASME B16.5 standards, ensuring precision dimensions, smooth sealing surfaces, and reliable performance.
Technical Specifications
| Item | Description |
|---|---|
| Standard | ASME B16.5 |
| Type | Weld Neck Raised Face (WNRF) |
| Nominal Size | 4" (DN100) |
| Pipe Schedule | SCH40 |
| Pressure Class | Class 300 |
| Material | Stainless Steel 316 / ASTM A182 F316 |
| Facing Type | Raised Face (RF) |
| Manufacturing Process | Forged and Machined |
| Surface Finish | Serrated or Smooth Finish |
| Origin | Made in China |
| Testing & Certification | EN 10204 3.1 / 3.2 Certificates Available |
Applications
Oil & Gas Pipelines and Refineries
Petrochemical and Chemical Plants
Power Generation Systems
Water Treatment and Desalination Plants
Marine and Offshore Installations
High-Pressure Process Piping
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