Haihao Group Supplies ASME B16.5 WN Flanges, Socket Weld Flanges, and ASME B16.48 Spacers to Indonesia
Haihao Group has successfully completed the shipment of a batch of ASME B16.5 WN flanges, socket weld flanges, and ASME B16.48 spacers for a valued customer in Indonesia. This order highlights our ability to supply a wide range of flange types and pressure ratings, tailored to meet demanding industrial applications.

ASME B16.48 SA 516 70N RF Spacer Spectacle Blind Flange manufactured by Haihao Group
Shipment Details
The order covers multiple flange types and specifications, ensuring compatibility across various pipeline projects:
Product Type | Size | Pressure / Thickness | Standard | Material | Face Type |
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WN Flange | 8″ | 1500# / S160 | ASME B16.5 | ASTM A694 F65 | RTJ |
WN Flange | 3″ | 150# / S80 | ASME B16.5 | ASTM A105N | RF |
WN Flange | 2″ | 600# / S80 | ASME B16.5 | ASTM A182 F316/316L | RF |
Socket Weld Flange | 1″ | 600# / S160 | ASME B16.5 | ASTM A182 F316/316L | RF |
Spacer Spectacle Blind Flange | 4″ | 600# | ASME B16.48 | SA-516-70N | RF |
Spacer Spectacle Blind Flange | 8″ | 300# | ASME B16.48 | SA-516-70N | RF |

Dimension inspection of ASME B16.5 A182 F316 F316L Socket Weld Flange
Quality and Compliance
All flanges and spacers were manufactured strictly in accordance with international standards including ASME B16.5 and ASME B16.48. Each product underwent comprehensive quality checks, including dimensional inspection, surface finishing verification, and chemical composition testing. The flanges were also coated with protective oil to prevent corrosion during transport and storage.

ASME B16.5 ASTM A105N RF Weld Neck Flange
Why Choose Haihao Group?
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Extensive Product Range: From weld neck flanges to socket weld flanges and spacers, we cover the full spectrum of pipeline connection solutions.
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Material Versatility: Products in this shipment include carbon steel, alloy steel, and stainless steel, ensuring suitability for different pressure and temperature conditions.
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Global Supply Experience: This delivery to Indonesia is another demonstration of our capability to serve oil, gas, and petrochemical projects worldwide.
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Reliable Quality: Every item complies with customer requirements and international standards, backed by a full material test certificate (MTC).
Partner with Haihao Group
With decades of experience in the piping industry, Haihao Group has established itself as a trusted supplier of pipeline systems, fittings, and flanges for global clients. Whether your project requires ASME B16.5 WN flanges, ASME B16.48 spacers, or specialized fittings, we provide tailored solutions that guarantee performance and reliability.
📩 Contact our sales team today to learn more about our pipeline solutions and how we can support your projects with certified, high-performance products.