ANSI / ASME B16.5 Class 600 Blind Flange Dimensions
The ANSI/ASME B16.5 Class 600 Blind Flange is a type of blind flange that complies with the ANSI/ASME B16.5 standard and is suitable for Class 600 pressure ratings.
ANSI / ASME B16.5 Class 600 Blind Flange
| Nominal Pipe Size | Outside Diameter(O) | Thickness (T) | Raised Face Diameter(R) | Approximate Weight (lbs) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 3.75 | 0.56 | 1.38 | 2 | 2.63 | 4 | 0.63 |
| 3/4 | 4.63 | 0.63 | 1.69 | 3 | 3.25 | 4 | 0.75 |
| 1 | 4.88 | 0.69 | 2.00 | 4 | 3.50 | 4 | 0.75 |
| 1 1/4 | 5.25 | 0.81 | 2.50 | 5 | 3.88 | 4 | 0.75 |
| 1 1/2 | 6.13 | 0.88 | 2.88 | 8 | 4.50 | 4 | 0.88 |
| 2 | 6.50 | 1.00 | 3.63 | 10 | 5.00 | 8 | 0.75 |
| 2 1/2 | 7.50 | 1.13 | 4.13 | 15 | 5.88 | 8 | 0.88 |
| 3 | 8.25 | 1.25 | 5.00 | 20 | 6.63 | 8 | 0.88 |
| 3 1/2 | 9.00 | 1.38 | 5.50 | 29 | 7.25 | 8 | 1.00 |
| 4 | 10.75 | 1.50 | 6.19 | 41 | 8.50 | 8 | 1.00 |
| 5 | 13.00 | 1.75 | 7.31 | 68 | 10.50 | 8 | 1.13 |
| 6 | 14.00 | 1.88 | 8.50 | 86 | 11.50 | 12 | 1.13 |
| 8 | 16.50 | 2.19 | 10.63 | 140 | 13.75 | 12 | 1.25 |
| 10 | 20.00 | 2.50 | 12.75 | 230 | 17.00 | 16 | 1.38 |
| 12 | 22.00 | 2.63 | 15.00 | 295 | 19.25 | 20 | 1.38 |
| 14 | 23.75 | 2.75 | 16.25 | 355 | 20.75 | 20 | 1.50 |
| 16 | 27.00 | 3.00 | 18.50 | 495 | 23.75 | 20 | 1.63 |
| 18 | 29.25 | 3.25 | 21.00 | 630 | 25.75 | 20 | 1.75 |
| 20 | 32.00 | 3.50 | 23.00 | 810 | 28.50 | 24 | 1.75 |
| 22 | 34.25 | 3.75 | 25.25 | 1000 | 30.63 | 24 | 1.88 |
| 24 | 37.00 | 4.00 | 27.25 | 1250 | 33.00 | 24 | 2.00 |
| Nominal Pipe Size | Outside Diameter(O) | Thickness (T) | Raised Face Diameter(R) | Approximate Weight (Kg) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 95.25 | 14.22 | 35.05 | 0.91 | 66.80 | 4 | 16.00 |
| 3/4 | 117.60 | 16.00 | 42.93 | 1.36 | 82.55 | 4 | 19.05 |
| 1 | 123.95 | 17.53 | 50.80 | 1.81 | 88.90 | 4 | 19.05 |
| 1 1/4 | 133.35 | 20.57 | 63.50 | 2.27 | 98.55 | 4 | 19.05 |
| 1 1/2 | 155.70 | 22.35 | 73.15 | 3.63 | 114.30 | 4 | 22.35 |
| 2 | 165.10 | 25.40 | 92.20 | 4.54 | 127.00 | 8 | 19.05 |
| 2 1/2 | 190.50 | 28.70 | 104.90 | 6.80 | 149.35 | 8 | 22.35 |
| 3 | 209.55 | 31.75 | 127.00 | 9.07 | 168.40 | 8 | 22.35 |
| 3 1/2 | 228.60 | 35.05 | 139.70 | 13.15 | 184.15 | 8 | 25.40 |
| 4 | 273.05 | 38.10 | 157.23 | 18.60 | 215.90 | 8 | 25.40 |
| 5 | 330.20 | 44.45 | 185.67 | 30.84 | 266.70 | 8 | 28.70 |
| 6 | 355.60 | 47.75 | 215.90 | 39.01 | 292.10 | 12 | 28.70 |
| 8 | 419.10 | 55.63 | 270.00 | 63.50 | 349.25 | 12 | 31.75 |
| 10 | 508.00 | 63.50 | 323.85 | 104.33 | 431.80 | 16 | 35.05 |
| 12 | 558.80 | 66.80 | 381.00 | 133.81 | 488.95 | 20 | 35.05 |
| 14 | 603.25 | 69.85 | 412.75 | 161.03 | 527.05 | 20 | 38.10 |
| 16 | 685.80 | 76.20 | 469.90 | 224.53 | 603.25 | 20 | 41.40 |
| 18 | 742.95 | 82.55 | 533.40 | 285.76 | 654.05 | 20 | 44.45 |
| 20 | 812.80 | 88.90 | 584.20 | 367.41 | 723.90 | 24 | 44.45 |
| 22 | 869.95 | 95.25 | 641.35 | 453.59 | 778.00 | 24 | 47.75 |
| 24 | 939.80 | 101.60 | 692.15 | 566.99 | 838.20 | 24 | 50.80 |
ANSI / ASME B16.5 Class 600 Blind Flange is a flange used to seal the end of a pipeline, suitable for systems where no equipment connection is required or where periodic access for inspection and maintenance is needed. Like other blind flanges, it has no through-hole and effectively seals the pipe, preventing the leakage of liquids or gases. Class 600 indicates that the flange can withstand a maximum working pressure of approximately 600 pounds per square inch (psi), with the specific pressure depending on the temperature and material.
For more technical support, please contact SSM.
FAQ
- Important dimensions include the outer diameter (OD), flange thickness, bolt hole size, bolt circle diameter, and the number of bolt holes. These should be checked to ensure compatibility with the pipeline and other flanges.
- The bolt hole size and bolt circle diameter (BCD) for each nominal pipe size (NPS) are specified in ANSI / ASME B16.5 tables. You should ensure these match the bolts and the pipe flange you are connecting to.
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