Size and Dimension Specifications ... AS2129 Table E flange specifications cover nominal pipe sizes from 15mm (1/2") to 1200mm (48"). Available in blind, slip-o...
Table E flanges, also known as raised face flanges, are a type of pipe fitting used to connect pipes or vessels. The dimensions of these flanges, including the bore (internal diameter), outer diameter (OD), and thickness, are crucial for ensuring a proper fit and leak-free connection. In this article, we'll delve into the dimensions of Table E flanges, focusing on the metric system (millimeters).
Table E flanges are available in a wide range of sizes, typically ranging from DN15 (15 mm) to DN600 (600 mm). The dimensions of these flanges are standardized and are based on the pipe size they are intended to fit. The most common dimensions include:
Here's a comprehensive table outlining the dimensions of Table E flanges in millimeters, based on the bore (DN) size:

| DN (mm) | OD (mm) | Hub Height (mm) | Hub Thickness (mm) | Facing Thickness (mm) |
|---|---|---|---|---|
| 15 | 52 | 3.5 | 3.5 | 5 |
| 20 | 64 | 4 | 4 | 6 |
| 25 | 76 | 4.5 | 4.5 | 7 |
| 32 | 95 | 5 | 5 | 8 |
| 40 | 114 | 5.5 | 5.5 | 9 |
| 50 | 139 | 6 | 6 | 10 |
| 65 | 168 | 6.5 | 6.5 | 11 |
| 80 | 193 | 7 | 7 | 12 |
| 100 | 225 | 7.5 | 7.5 | 13 |
| 125 | 263 | 8 | 8 | 14 |
| 150 | 298 | 8.5 | 8.5 | 15 |
| 175 | 338 | 9 | 9 | 16 |
| 200 | 375 | 9.5 | 9.5 | 17 |
| 250 | 457 | 10 | 10 | 18 |
| 300 | 533 | 10.5 | 10.5 | 19 |
| 350 | 610 | 11 | 11 | 20 |
| 400 | 688 | 11.5 | 11.5 | 21 |
| 450 | 765 | 12 | 12 | 22 |
| 500 | 843 | 12.5 | 12.5 | 23 |
| 600 | 984 | 13 | 13 | 24 |
While the above dimensions are standardized, there are several factors that can affect the dimensions of Table E flanges:
When choosing a Table E flange, it's crucial to consider the pipe size, pressure rating, and temperature of the fluid being carried. Using the wrong flange can lead to leaks, poor performance, and even catastrophic failure. Always consult the manufacturer's guidelines and ensure that the flange meets the relevant standards and regulations.
Understanding the dimensions of Table E flanges is crucial for ensuring a proper fit and leak-free connection. Whether you're a seasoned engineer or a DIY enthusiast, this guide should provide you with the information you need to select the right flange for your needs.

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