Haihao Group Supplies EN1092-1 WN and Blind Flanges with DNV Certification to Singapore

Haihao Group has once again demonstrated its strong manufacturing capability and global supply chain reliability by successfully delivering a batch of EN1092-1 flanges to a valued customer in Singapore. The order includes weld neck flat face (WN FF) flanges and blind flanges (FF), produced in large diameters up to 80 inches.

Product Details

The delivery covers multiple specifications, including:

• 80″ WNFF flange, PN6, EN-10222-2 Gr. P280GH

• 80″ WNFF flange, PN10, EN-10222-2 Gr. P280GH

• 72″ WNFF flange, PN10, EN-10222-2 Gr. P280GH

• 80″ blind flange FF, PN6, EN 10028-2 Gr. P295GH

All flanges were manufactured in strict compliance with EN1092-1 standard, ensuring dimensional accuracy and durability under pressure.

Certified Quality with Full Documentation

To guarantee reliability for critical applications, Haihao Group provided full sets of test certificates and inspection reports, including:

• Mill’s Test Certificate (EN 10204 3.1) with DNV approval

• Raw material MTC for traceability

• Hardness test reports to ensure mechanical strength

• Heat treatment records for microstructural stability

• Ultrasonic testing (UT) reports for flaw detection

With both EN standards and DNV class certification, customers are assured that the flanges meet the highest international requirements for offshore, shipbuilding, and industrial pipeline projects.

Commitment to Global Customers

Haihao Group continues to serve worldwide clients with a comprehensive range of carbon steel flanges, stainless steel flanges, and alloy steel flanges, covering ASME, EN, DIN, GOST, and JIS standards. Our strong focus on quality assurance, timely delivery, and customer-specific solutions has made us a trusted partner for EPC contractors, shipyards, and oil & gas operators across the globe.

By supplying large-diameter EN1092-1 flanges with DNV certification, Haihao once again proves its dedication to safety, quality, and long-term reliability.