Introduction: The Strength of ASME B16.47 Series A Flanges
When it comes to high-pressure piping systems, ASME B16.47 Series A flanges are among the most reliable and widely used components in industries such as oil & gas, petrochemical, power generation, and water treatment. These flanges are designed for large-diameter pipelines (NPS 26 to NPS 60) and offer superior strength, durability, and leak-proof performance under extreme conditions.
At WENZHOU ZHIYUAN FLANGE PIPE FITTINGS COMPANY, we manufacture ASME B16.47 Series A flanges in stainless steel, carbon steel, and alloy steel, ensuring compliance with strict industry standards for safety and performance.
What Are ASME B16.47 Series A Flanges?
The ASME B16.47 standard covers large-diameter steel flanges and is divided into two series:
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Series A (MSS SP-44) – Higher pressure rating, fewer bolts, thicker flange faces.
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Series B (API 605) – Lighter, more bolt holes, typically used in API-specified applications.
Key Features of ASME B16.47 Series A Flanges:
✔ Pressure Rating: Class 150 to Class 900
✔ Sizes: NPS 26″ to NPS 60″ (larger sizes available upon request)
✔ Materials: ASTM A105 (Carbon Steel), A182 F304/F316 (Stainless Steel), Alloy Steel (F11, F22)
✔ Face Types: Raised Face (RF), Ring-Type Joint (RTJ), Flat Face (FF)
✔ Standards Compliance: ASME B16.47, MSS SP-44, ANSI, API
Why Choose ASME B16.47 Series A Flanges?
1. Superior Strength for High-Pressure Applications
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Designed for critical high-pressure systems in oil refineries, gas pipelines, and chemical plants.
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Thicker flange body compared to Series B, ensuring better load distribution.
2. Leak-Proof Performance
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RTJ (Ring-Type Joint) flanges provide metal-to-metal sealing, ideal for high-pressure gas & steam lines.
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RF (Raised Face) flanges with gaskets ensure tight sealing in liquid applications.
3. Fewer Bolts, Easier Installation
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Series A flanges have fewer bolt holes than Series B, reducing assembly time while maintaining high structural integrity.
4. Wide Material Compatibility
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Available in carbon steel (A105), stainless steel (304/316), and alloy steel (F11/F22) for corrosion resistance and high-temperature performance.
Industries That Use ASME B16.47 Series A Flanges
| Industry | Application |
|---|---|
| Oil & Gas | Pipeline connections, refinery piping, offshore platforms |
| Petrochemical | High-pressure chemical processing, acid transport |
| Power Plants | Steam lines, boiler connections, turbine systems |
| Water Treatment | Large-diameter water pipelines, desalination plants |
| Mining & Heavy Industry | Slurry transport, high-pressure hydraulic systems |
[Your Company Name] – Your Trusted ASME B16.47 Flange Supplier
✅ Certified Manufacturing – Our flanges comply with ASME, ANSI, API, and PED standards.
✅ Custom Solutions – We provide non-standard sizes, special coatings (PTFE, epoxy), and heat treatment upon request.
✅ Global Supply – Fast delivery to USA, Europe, Middle East, and Asia.
✅ Quality Assurance – 100% material traceability, ultrasonic testing (UT), and hydrostatic testing available.
🔥 Limited-Time Offer!
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Bulk Order Discounts on ASME B16.47 Series A flanges.
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Free Technical Consultation for your project requirements.
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FAQs About ASME B16.47 Series A Flanges
Q: What’s the difference between ASME B16.47 Series A and Series B?
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Series A (MSS SP-44) has higher pressure ratings, thicker flanges, and fewer bolts.
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Series B (API 605) is lighter and used in API-specified applications.
Q: Can you supply RTJ (Ring-Type Joint) flanges?
Yes! We offer RTJ, RF, and FF flanges in all standard sizes.
Q: Do you provide material test certificates (MTC)?
Absolutely! All our flanges come with MTC, heat numbers, and compliance documentation.
Conclusion: The Best Choice for Heavy-Duty Piping Systems
ASME B16.47 Series A flanges are the top choice for engineers who need high-pressure, large-diameter piping solutions. Whether you’re in oil & gas, power generation, or chemical processing, our flanges ensure reliable, leak-proof performance.
📢 Ready to Order? Get a Free Quote Now! [ Email:[email protected] /WhatsApp:+86 13838706559]
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