ANSI B16.5 Gr1 Gr2 Gr12 Titanium Slip On Flange SO Flange Class 150 SORF Raised Face for Water Treatment Industry
ANSI B16.5 Gr1 Gr2 Gr12 Titanium Slip On Flange SO Flange Class 150 SORF Raised Face for Water Treatment Industry
1.Product Introduction of ASME B16.5 Titanium Slip On Flange
Titanium slip-on flanges, conforming to ASME B16.5 standards and made from Grade 2 titanium alloy, play a crucial role in the oil and gas industry. These flanges with raised faces are designed to ensure secure and leak-free connections in pipelines and equipment subjected to high pressures and corrosive environments. This paper examines the specifications, characteristics, and applications of ASME B16.5 Grade 2 Class 150 titanium slip-on flanges with raised face, highlighting their significance in enhancing operational efficiency and reliability within the oil and gas sector.
The oil and gas industry relies heavily on robust and durable components to maintain the integrity of pipeline systems and equipment. Titanium slip-on flanges are preferred for their exceptional corrosion resistance and mechanical properties, making them suitable for demanding applications in offshore platforms, refineries, and chemical processing plants. This paper explores the structural composition, dimensional standards, and performance attributes of ASME B16.5 Grade 2 Class 150 titanium slip-on flanges with raised face, detailing their role in addressing challenges related to fluid transport, high temperatures, and aggressive media encountered in oil and gas operations.
The ASME B16.5 standard covers dimensions and tolerances for pipe flanges and flanged fittings from NPS 1/2 through NPS 24, used in process industries. A titanium slip-on flange (SO flange) conforming to ASME B16.5 is specifically designed for use with titanium pipes or pipes with titanium alloy components.
Titanium slip-on flanges are typically manufactured using commercially pure titanium (Grade 2) or titanium alloys such as Grade 12. These flanges are forged or fabricated from titanium plates, ensuring high strength and corrosion resistance suitable for various industrial applications. The slip-on flange has a slightly larger inner diameter than the outer diameter of the pipe it is intended to fit over. It is easy to align and weld, providing a smooth bore and good flow characteristics. ASME B16.5 specifies a raised face (RF) design for slip-on flanges, which helps create a seal when bolted to a corresponding flange or fitting.
2. Grades of ASME B16.5 Titanium Slip On Flange
ASME B16.5 titanium slip-on flanges are typically available in various grades of titanium and titanium alloys. The choice of grade depends on the specific application requirements, including corrosion resistance, mechanical properties, and cost considerations.
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Commercially Pure Titanium:
- Grade 2 (UNS R50400): This is the most widely used grade of titanium due to its excellent corrosion resistance, formability, and weldability. It is suitable for a wide range of industrial applications where moderate strength and good corrosion resistance are required.
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Titanium Alloys:
- Grade 5 (Ti-6Al-4V, UNS R56400): This is the most commonly used titanium alloy, known for its high strength, lightweight properties, and excellent corrosion resistance. It is used in aerospace, marine, and chemical processing industries.
- Grade 7 (UNS R52400): Known for its excellent weldability and corrosion resistance in reducing and mildly oxidizing environments, Grade 7 titanium is often used in chemical processing equipment.
- Grade 12 (UNS R53400): This titanium alloy offers excellent corrosion resistance in highly oxidizing environments and is well-suited for chemical processing and marine applications.
- Grade 23 (Ti-6Al-4V ELI, UNS R56401): Similar to Grade 5, but with extra low interstitial (ELI) content, Grade 23 titanium alloy is used in medical and aerospace applications where biocompatibility and high strength are required.
3. Temperature Specifications for ASME B16.5 Titanium Slip On Flange
| ANSI B16.5 | Titanium Flanges Pressure Rating | ||||||
| Temperature °F | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 345 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |
4. Packages of Titanium Slip On Flange
Rust Prevention
- VCI (Volatile Corrosion Inhibitor) Wrapping: Titanium flanges are wrapped in VCI paper to prevent any surface corrosion during transit. This material releases a chemical vapor that forms a protective layer on the metal surfaces.
- Grease or Oil Coating: A light layer of grease or oil may be applied to protect the flange surfaces, especially when being shipped over long distances or stored for extended periods.
Physical Protection
- Bubble Wrap or Foam: Each flange is typically wrapped in bubble wrap or surrounded by foam to cushion against impact during transportation.
- Cardboard Separators: When multiple flanges are packed in one box, cardboard separators are used to prevent them from touching and potentially scratching or damaging each other.
Robust Outer Packaging
- Wooden Crates or Plywood Boxes: Titanium flanges are often shipped in wooden crates or plywood boxes, which provide sturdy protection from mechanical damage and are stackable, facilitating easier and safer handling.
- Palletization: For large orders, flanges may be palletized. Each pallet is usually shrink-wrapped to secure the boxes or crates during handling and shipping.
Waterproofing
- Plastic Sheeting: Outer crates or boxes are often covered with thick plastic sheeting to protect against moisture, especially in humid or wet environments.
Labeling and Documentation
- Clear Labeling: Each package is clearly labeled with handling instructions, part numbers, and destination details to ensure proper handling and to facilitate tracking.
- Quality Assurance Documentation: Certificates of quality, material test reports, and compliance certificates are often included in the packaging or provided separately to ensure traceability and compliance with industry standards.
5. Applications of ANSI B16.5 Titanium Slip On Flange
- Pipeline Construction: Used to join sections of pipelines, ensuring secure and leak-free connections during fluid transport.
- Refineries and Petrochemical Plants: Installed in processing units for connecting vessels, reactors, and heat exchangers, where resistance to corrosive chemicals is essential.
- Offshore Platforms: Employed in offshore drilling rigs and production platforms to withstand marine environments and harsh weather conditions.
- Gas Processing Facilities: Utilized in compressors, pumps, and valves to maintain operational integrity and safety.
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