Large Diameter Flanges are specially manufactured for oversized piping systems requiring exceptional strength and precision. Ruixinte specializes in producing large diameter flanges beyond standard size ranges, serving major infrastructure and industrial projects worldwide.
Key Features:
• Specialized forging process for superior structural integrity
• Precision machining ensures perfect sealing surface
• Custom dimensions available beyond standard ranges
• Strict dimensional tolerance control
• Full material traceability and third-party inspection available
Specifications:
• Size Range: DN600 and above (custom up to DN3000+)
• Pressure Class: PN6 – PN420 / 150# – 2500#
• Standards: ANSI/ASME B16.47, DIN, JIS, GB/T, EN 1092
• Materials: 304, 304L, 316, 316L, 321, 310S, 904L, F51 Duplex, Carbon Steel, Alloy Steel
• Face Types: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
• Heat Treatment: Annealing, Solution Treatment available
• Testing: UT, MT, PT, PMI, Hardness Test available
Manufacturing Process:
1. Raw material inspection & certification
2. Forging — open die or ring rolling
3. Heat treatment
4. Rough machining
5. Dimensional inspection
6. Finish machining
7. Surface treatment
8. Final inspection & marking
9. Packaging & shipping
Applications:
LNG terminals, offshore platforms, nuclear power plants, large-scale chemical complexes, water treatment infrastructure, shipbuilding.Large Diameter Flange
Large diameter flanges DN600 and above, custom up to DN3000+. ANSI B16.47, DIN, …
Quick Specifications
| Standard | ANSI/ASME, DIN, JIS, GB |
| Pressure Class | 150# – 2500# / PN6 – PN420 |
| Size Range | 1/2″ – 120″ (DN15 – DN3000) |
| Material | Carbon Steel, Alloy Steel, SS |
| Surface | FF / RF / RTJ / RJ |
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