Flange Shipment to Indonesia: ASME B16.5 WN RTJ Flanges and NORSOK L-001 Figure-8 Blinds
Haihao Group recently completed the shipment of high-pressure forged flanges and figure-8 blind flanges to an Indonesian customer, supporting an industrial piping project with strict requirements for low-temperature impact performance, pressure rating, and international standards compliance.
This order covers ASME B16.5 weld neck RTJ flanges as well as NORSOK L-001 figure-8 blind flanges, manufactured with certified carbon steel materials and tested to meet demanding service conditions.
Weld Neck RTJ Flanges for High-Pressure Applications
The shipment includes several sizes of weld neck RTJ flanges designed for high-pressure and low-temperature service:
- 18″ WN RTJ Flange, Class 900 / SCH100, Material: ASTM A694 F52
- 12″ WN RTJ Flange, Class 1500 / SCH160, Material: ASTM A694 F52
- 10″ WN RTJ Flange, Class 900 / SCH120, Material: ASTM A350 LF2 Class 1
- 1″ WN RTJ Flange, Class 1500 / 10 mm, Material: ASTM A350 LF2 Class 1
All weld neck flanges are manufactured in accordance with ASME B16.5, ensuring dimensional accuracy, pressure integrity, and reliable welding performance in critical piping systems.
ASME B16.5 weld neck RTJ flanges A350 LF2 CL1 for Indonesia project
Verified Low-Temperature Impact Performance
For projects operating in cold environments, material toughness is essential. The flanges supplied by Haihao Group meet the following Charpy impact test requirements at –46°C:
- ASTM A350 LF2 CL1: 27 J (average) / 20 J (minimum)
- ASTM A694 F52 & ASTM A860 WPHY52: 41 J (average) / 33 J (minimum)
This makes the flanges suitable for energy, oil & gas, and offshore-related applications where low-temperature reliability is critical.
NORSOK L-001 Figure-8 Blind Flanges
In addition to weld neck flanges, the order also includes figure-8 blind flanges (spectacle blinds) manufactured to NORSOK L-001, widely used in offshore and process isolation systems:
- 2″ Figure-8 Blind Flange FF, Class 300, ASTM A516 Gr.60, Hot-dip galvanized
- 12″ Figure-8 Blind Flange FF, Class 300, ASTM A516 Gr.70
- 4″ Figure-8 Blind Flange RTJ, Class 1500, ASTM A516 Gr.70
- 1.5″ Figure-8 Blind Flange FF, Class 300, ASTM A516 Gr.70
These figure-8 blinds provide a safe and efficient solution for line isolation during maintenance and inspection, with options for flat face (FF) and ring type joint (RTJ) sealing.
Reliable Flange Manufacturer for Global Projects
With extensive experience in forged flanges, pressure fittings, and customized piping components, Haihao Group supplies products to customers across Southeast Asia, the Middle East, Europe, and beyond. From raw material control to machining, testing, and export packing, every step is strictly managed to meet international standards and project specifications.
If you are looking for a trusted flange manufacturer for ASME B16.5 flanges or NORSOK L-001 figure-8 blind flanges, Haihao Group is ready to support your project with stable quality and professional service.