Haihao Group Ships ASME B16.47 Series A A105N WN Flanges to Singapore

Large diameter welded neck flanges are a core connection solution for long-distance transmission pipelines, and dimensional compliance is always the top priority for project acceptance. Haihao Group recently finished packing and arranged shipment of ASME B16.47 Series A A105N WN flanges to our Singapore customer.

This shipment covers three common large sizes: 26 inch, 32 inch and 36 inch, all STD wall thickness, 150 pressure class with raised face. ASME B16.47 Series A governs big diameter steel flanges, separate from the B16.5 standard that covers smaller sizes. Many Singapore EPC contractors specifically specify ASME B16.47 Series A A105N WN flanges for trunk pipelines because of its stable sealing performance and reliable weld joint strength.

ASME B16.47 Series A A105N WN RF flange 26 inch 32 inch 36 inch for Singapore project

The material grade SA/A105N is normalized carbon steel, suitable for ambient and moderate low-temperature service. Before shipment, our QC team checked flange dimensions, RF sealing surface finish and marking one by one. Each batch of ASME B16.47 Series A A105N WN flanges comes with full material test reports for site review and third-party inspection.

We know large flanges often have long lead times and strict tolerance requirements. Our workshop keeps mature production capacity for ASME B16.47 Series A A105N WN flanges, and we can handle custom sizes, pressure classes and special testing requirements for oil, gas and water pipeline projects across Southeast Asia.

If you are sourcing large diameter welded neck flanges that follow ASME B16.47 Series A, share your drawing and specification. Our engineering team will review your requirements and offer a competitive, traceable supply solution.