ANSI / ASME B16.5 Class 1500 Threaded Flange Dimensions
Threaded flanges are commonly used in pipe connections where welding is not possible, such as in certain environments, hazardous conditions, or during maintenance. They are often used in industries like oil, natural gas, chemical processing, and petrochemicals.
ANSI / ASME B16.5 Class 1500 Threaded Flange
Class 1500 Threaded Flange Dimensions in inch/lbs
Class 1500 Threaded Flange Dimensions in mm/kg
Class 1500 Threaded Flange Dimensions in inch/lbs
| Nominal Pipe Size | Outside Diameter (O) | Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Approximate Weight (lbs) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 4.75 | 0.88 | 1.38 | 1.25 | 1.50 | 4 | 3.25 | 4 | 0.88 |
| 3/4 | 5.13 | 1.00 | 1.69 | 1.38 | 1.75 | 5 | 3.50 | 4 | 0.88 |
| 1 | 5.88 | 1.13 | 2.00 | 1.63 | 2.06 | 8 | 4.00 | 4 | 1.00 |
| 1 1/4 | 6.25 | 1.13 | 2.50 | 1.63 | 2.50 | 9 | 4.38 | 4 | 1.00 |
| 1 1/2 | 7.00 | 1.25 | 2.88 | 1.75 | 2.75 | 12 | 4.88 | 4 | 1.13 |
| 2 | 8.50 | 1.50 | 3.63 | 2.25 | 4.13 | 25 | 6.50 | 8 | 1.00 |
| 2 1/2 | 9.63 | 1.63 | 4.13 | 2.50 | 4.88 | 36 | 7.50 | 8 | 1.13 |
| 3 | 10.50 | 1.88 | 5.00 | 2.88 | 5.25 | 48 | 8.00 | 8 | 1.25 |
| 4 | 12.25 | 2.13 | 6.19 | 3.56 | 6.38 | 73 | 9.50 | 8 | 1.38 |
| 5 | 14.75 | 2.88 | 7.31 | 4.13 | 7.75 | 130 | 11.50 | 8 | 1.63 |
| 6 | 15.50 | 3.25 | 8.50 | 4.69 | 9.00 | 165 | 12.50 | 12 | 1.50 |
| 8 | 19.00 | 3.63 | 10.63 | 5.63 | 11.50 | 260 | 15.50 | 12 | 1.75 |
| 10 | 23.00 | 4.25 | 12.75 | 625.00 | 14.50 | 435 | 19.00 | 12 | 2.00 |
| 12 | 26.50 | 4.88 | 15.00 | 7.13 | 17.75 | 580 | 22.50 | 16 | 2.13 |
Class 1500 Threaded Flange Dimensions in mm/kg
| Nominal Pipe Size | Outside Diameter (O) | Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Approximate Weight (kg) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 120.65 | 22.35 | 35.05 | 31.75 | 38.10 | 1.81 | 82.55 | 4 | 22.35 |
| 3/4 | 130.30 | 25.40 | 42.93 | 35.05 | 44.45 | 2.27 | 88.90 | 4 | 22.35 |
| 1 | 149.35 | 28.70 | 50.80 | 41.40 | 52.32 | 3.63 | 101.60 | 4 | 25.40 |
| 1 1/4 | 158.75 | 28.70 | 63.50 | 41.40 | 63.50 | 4.08 | 111.25 | 4 | 25.40 |
| 1 1/2 | 177.80 | 31.75 | 73.15 | 44.45 | 69.85 | 5.44 | 123.95 | 4 | 28.70 |
| 2 | 215.90 | 38.10 | 92.20 | 57.15 | 104.90 | 11.34 | 165.10 | 8 | 25.40 |
| 2 1/2 | 244.60 | 41.40 | 104.90 | 63.50 | 123.95 | 16.33 | 190.50 | 8 | 28.70 |
| 3 | 266.70 | 47.75 | 127.00 | 73.15 | 133.35 | 21.77 | 203.20 | 8 | 31.75 |
| 4 | 311.15 | 54.10 | 157.23 | 90.42 | 162.05 | 33.11 | 241.30 | 8 | 35.05 |
| 5 | 374.65 | 73.15 | 185.67 | 104.90 | 196.85 | 58.97 | 292.10 | 8 | 41.40 |
| 6 | 393.70 | 82.55 | 215.90 | 119.13 | 228.60 | 74.84 | 317.50 | 12 | 38.10 |
| 8 | 482.60 | 92.20 | 270.00 | 143.00 | 292.10 | 117.93 | 393.70 | 12 | 44.45 |
| 10 | 584.20 | 107.95 | 323.85 | 15875.00 | 368.30 | 197.31 | 482.60 | 12 | 50.80 |
| 12 | 673.10 | 123.95 | 381.00 | 181.10 | 450.85 | 263.08 | 571.50 | 16 | 54.10 |
The ANSI / ASME B16.5 Class 1500 Threaded Flange is a high-pressure flange designed for piping systems that do not require welding. It is rated to withstand pressures up to 1500 pounds per square inch (PSI) at specific temperatures and uses threading to connect the flange to the pipe.
For more technical support, please contact SSM.
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