Haihao Group Supplies EN 1092-1/11/B WN Flanges to Montenegro Client
Haihao Group recently completed the production and shipment of EN 1092-1/11/B weld neck (WN) flanges to a valued customer in Montenegro.
These flanges are manufactured from RSt 37.2 carbon steel, meeting the strict dimensional and performance requirements of European standards.
Each flange was precisely machined and coated with anti-rust oil to ensure corrosion protection during transportation and long-term storage.
Detailed Product Information
The supplied flanges were produced in multiple sizes to match the customer’s pipeline specifications, ensuring full compatibility with PN16 pressure class systems.
| Product | Size | Wall Thickness / Pressure | Standard | Material | Treatment |
|---|---|---|---|---|---|
| WN Flange RF | N0100 NP16-108 | 108×3.6 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N0100 NP16-114.3 | 114.3×3.6 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N0125 NP16-133 | 133×4 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N040 NP16 | 48.3×2.6 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N050 NP16 | 60.3×2.9 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N065 NP16 | 76.1×2.9 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
| WN Flange RF | N080 NP16 | 88.9×3.2 | EN 1092-1/11/B | RSt 37.2 | Anti-rust oil |
All flanges were dimensionally inspected, pressure-tested, and surface-treated before packing, ensuring compliance with international standards and customer specifications.
Why Choose EN 1092-1/11/B Weld Neck Flanges?
The EN 1092-1/11/B weld neck flange is one of the most reliable and durable flange types used in European piping systems.
Its long tapered hub provides smooth stress distribution between the flange and the pipe, reducing fatigue and enhancing safety under pressure and thermal conditions.
Main Advantages:
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Excellent sealing reliability for high-pressure service
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Suitable for both carbon steel and alloy piping systems
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Conforms to European EN 1092-1 dimensional and design standards
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Compatible with PN16 rated pipelines
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Ideal for oil, gas, chemical, and water treatment industries
Haihao Group manufactures WN flanges with strict quality assurance and traceable materials, ensuring each component meets project-specific engineering requirements.
Material and Surface Protection
The flanges were made from RSt 37.2, a high-quality carbon steel widely used in pressure vessels and pipeline construction.
This material provides good weldability, moderate strength, and excellent toughness, making it ideal for general industrial applications.
Before delivery, each flange was treated with anti-rust oil to prevent oxidation and corrosion during shipment — a standard protective measure for Haihao’s global exports.
Commitment to Global Pipeline Solutions
With over four decades of manufacturing experience, Haihao Group is recognized as a trusted supplier of flanges, pipe fittings, and pipeline components certified to EN, ASME, DIN, and GOST standards.
This Montenegro shipment reflects Haihao’s ability to serve European energy, petrochemical, and infrastructure projects with custom-engineered piping solutions, on-time delivery, and full technical documentation.