Flange Dimensions Chart PDF: A Complete Guide by Sachiya Steel International Private Limited
At Sachiya Steel International Private Limited, we specialize in providing a comprehensive range of flange dimensions and flange size charts to meet various industrial and construction needs. Understanding flange dimensions is critical for designing and installing piping systems that are secure, leak-proof, and capable of withstanding high pressure. This guide focuses and covers the essential flange dimensions chart PDFs, pipe flange size charts, flange size charts in mm, and more to ensure you choose the right flanges for your projects.
What Are Flanges and Why Are Flange Dimensions Important?
Flanges are integral components used in piping systems to connect pipes, valves, and other equipment securely. They are essential for preventing leaks and ensuring smooth flow in a system. The flange dimensions must match the specifications of the connected pipes and the application to ensure a secure connection.
The key dimensions of flanges include:
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Nominal Pipe Size (NPS): Standardized pipe size that determines the corresponding flange size.
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Bolt Circle Diameter (BCD): The diameter of the circle formed by the center of each bolt hole.
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Number of Bolt Holes: Indicates how many bolts are required to fasten the flange.
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Bolt Hole Diameter: The size of each bolt hole for securing the flange.
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Flange Thickness: The thickness of the flange to resist pressure.
Accurate flange dimensions are vital to achieving the proper fit and function, reducing the risk of system failures.
Flange Dimensions Chart PDF
Flange dimension charts provide essential details for selecting the right flanges for your piping system. These charts typically include critical measurements such as bolt circle diameter, number of bolt holes, bolt hole diameter, and flange thickness. By using these charts, you can ensure compatibility with your pipe sizes and avoid potential leaks or weaknesses.
Below, we present a detailed breakdown of flange dimensions for various working pressures, including BS 10 Table D, Table E, and Table F flange sizes.
Flange Dimensions Chart (BS 10 – Table D, E, and F)
Up to 50 lbs, Up to 100 lbs, and Above 100 lbs per square inch
| Nominal Pipe Size | O.D of Pipe (mm) | Dia. of Flange (mm) | Bolt Circle Dia. (mm) | No. of Bolt Holes | Dia. of Bolt Hole (mm) | Thickness of Flange (mm) |
|---|---|---|---|---|---|---|
| 1/2″ | 21.3 | 95.3 | 66.7 | 4 | 12.7 | 4.8 |
| 3/4″ | 26.7 | 101.6 | 73.0 | 4 | 12.7 | 4.8 |
| 1″ | 33.4 | 114.3 | 82.6 | 4 | 12.7 | 4.8 |
| 1 1/4″ | 42.2 | 120.7 | 87.6 | 4 | 12.7 | 6.4 |
| 1 1/2″ | 48.3 | 133.4 | 98.4 | 4 | 12.7 | 6.4 |
| 2″ | 60.3 | 152.4 | 114.3 | 4 | 15.9 | 7.9 |
| 2 1/2″ | 73.0 | 165.1 | 127.0 | 4 | 15.9 | 7.9 |
| 3″ | 88.9 | 184.2 | 146.1 | 4 | 15.9 | 9.5 |
| 3 1/2″ | 101.6 | 203.2 | 165.1 | 4 | 15.9 | 9.5 |
| 4″ | 114.3 | 215.9 | 177.8 | 4 | 15.9 | 9.5 |
| 5″ | 141.3 | 254.0 | 209.6 | 8 | 15.9 | 12.7 |
| 6″ | 168.3 | 279.4 | 228.6 | 8 | 15.9 | 12.7 |
| 7″ | 190.5 | 304.8 | 260.4 | 8 | 15.9 | 12.7 |
| 8″ | 219.1 | 336.6 | 292.1 | 8 | 15.9 | 12.7 |
| 9″ | 244.5 | 368.3 | 323.9 | 8 | 15.9 | 15.9 |
| 10″ | 273.0 | 406.4 | 355.6 | 8 | 19.1 | 15.9 |
| 12″ | 323.9 | 457.2 | 406.4 | 12 | 19.1 | 15.9 |
| 14″ | 355.6 | 527.1 | 469.9 | 12 | 22.2 | 19.1 |
| 16″ | 406.4 | 577.9 | 520.7 | 12 | 22.2 | 19.1 |
| 18″ | 457.2 | 641.4 | 584.2 | 12 | 22.2 | 22.2 |
| 20″ | 508.0 | 704.9 | 641.4 | 16 | 22.5 | 25.4 |
| 24″ | 609.6 | 825.5 | 755.7 | 16 | 25.4 | 28.6 |
Flange Dimensions Chart (BS 10 – Table E: For Working Steam Pressure Up to 100 lbs per sq. inch)
| Nominal Pipe Size | O.D of Pipe (mm) | Dia. of Flange (mm) | Bolt Circle Dia. (mm) | No. of Bolt Holes | Dia. of Bolt Hole (mm) | Thickness of Flange (mm) |
|---|---|---|---|---|---|---|
| 1/2″ | 21.3 | 95.3 | 66.7 | 4 | 12.7 | 9.5 |
| 3/4″ | 26.7 | 101.6 | 73.0 | 4 | 12.7 | 9.5 |
| 1″ | 33.4 | 120.7 | 87.3 | 4 | 15.9 | 9.5 |
| 1 1/4″ | 42.2 | 133.4 | 98.4 | 4 | 15.9 | 12.7 |
| 1 1/2″ | 48.3 | 139.7 | 104.8 | 4 | 15.9 | 12.7 |
| 2″ | 60.3 | 165.1 | 127.0 | 4 | 15.9 | 15.9 |
| 2 1/2″ | 73.0 | 184.2 | 146.1 | 8 | 15.9 | 15.9 |
| 3″ | 88.9 | 203.2 | 165.1 | 8 | 15.9 | 15.9 |
| 3 1/2″ | 101.6 | 215.9 | 177.8 | 8 | 15.9 | 19.1 |
| 4″ | 114.3 | 228.6 | 190.5 | 8 | 15.9 | 19.1 |
Flange Dimensions Chart (BS 10 – Table F: Above 100 lbs)
| Nominal Pipe Size | O.D of Pipe (mm) | Dia. of Flange (mm) | Bolt Circle Dia. (mm) | No. of Bolt Holes | Dia. of Bolt Hole (mm) | Thickness of Flange (mm) |
|---|---|---|---|---|---|---|
| 1/2″ | 21.3 | 95.3 | 66.7 | 4 | 12.7 | 12.7 |
| 3/4″ | 26.7 | 101.6 | 73.0 | 4 | 12.7 | 12.7 |
| 1″ | 33.4 | 120.7 | 87.3 | 4 | 15.9 | 14.3 |
| 1 1/4″ | 42.2 | 133.4 | 98.4 | 4 | 15.9 | 17.5 |
| 1 1/2″ | 48.3 | 139.7 | 104.8 | 4 | 15.9 | 17.5 |
| 2″ | 60.3 | 165.1 | 127.0 | 4 | 15.9 | 19.1 |
| 2 1/2″ | 73.0 | 184.2 | 146.1 | 8 | 15.9 | 19.1 |
| 3″ | 88.9 | 203.2 | 165.1 | 8 | 15.9 | 22.2 |
| 3 1/2″ | 101.6 | 215.9 | 177.8 | 8 | 15.9 | 22.2 |
| 4″ | 114.3 | 228.6 | 190.5 | 8 | 15.9 | 25.4 |
Flange PCD Chart: Understanding Bolt Circle Diameter (BCD)
The Flange PCD (Pitch Circle Diameter) is an essential measurement for ensuring bolt holes are properly aligned, and that the flanges fit securely in their respective connections. A proper understanding of PCD is vital in creating leak-proof seals and maintaining high-pressure system integrity.
Sachiya Steel International Private Limited: The Leading Supplier of Flange Dimensions
At Sachiya Steel International Private Limited, we provide precise and reliable flange dimensions that meet global industry standards. We manufacture and supply a range of flange dimensions chart PDFs for various piping systems, ensuring that our clients receive top-notch quality products for their applications.
Why Choose Sachiya Steel International?
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Global Standards Compliance: We adhere to international standards like BS 10 and ANSI B16.5 for all our flange dimensions.
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Comprehensive Product Range: We offer a wide variety of flanges, including weld neck flanges, slip-on flanges, and blind flanges.
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Customer-Focused Service: We prioritize customer satisfaction and provide the most accurate flange dimensions, ensuring perfect fittings.
For further information on flange dimensions, or to request a flange dimensions chart PDF, visit our website or contact our team today.
Conclusion
Flanges are vital components for ensuring secure, leak-proof connections in piping systems. Accurate knowledge of flange dimensions and flange size charts is essential for selecting the correct components for various applications. Sachiya Steel International Private Limited offers a wide range of flange dimensions, with precise details and specifications to ensure reliable, long-lasting connections for industrial projects.
By referencing detailed flange dimensions charts and choosing the right flange from BS 10, ANSI, and other standards, you can be assured of a high-quality, secure piping system. Visit Sachiya Steel International to access our extensive flange dimension charts and explore our complete range of products today.