ANSI / ASME B16.5 Class 900 Slip On Flange Dimensions
ANSI/ASME B16.5 Class 900 Slip On Flange is a type of flange that complies with the standards set by the American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME) B16.5.
ANSI / ASME B16.5 Class 900 Slip On Flange
| Nominal Pipe Size | Outside Diameter (O) | Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Bore (B) | Approximate Weight (lbs) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 4.75 | 0.88 | 1.38 | 1.25 | 1.50 | 0.88 | 4 | 3.25 | 4 | 0.88 |
| 3/4 | 5.13 | 1.00 | 1.69 | 1.38 | 1.75 | 1.09 | 5 | 3.50 | 4 | 0.88 |
| 1 | 5.88 | 1.13 | 2.00 | 1.63 | 2.06 | 1.36 | 8 | 4.00 | 4 | 1.00 |
| 1 1/4 | 6.25 | 1.13 | 2.50 | 1.63 | 2.50 | 1.70 | 9 | 4.38 | 4 | 1.00 |
| 1 1/2 | 7.00 | 1.25 | 2.88 | 1.75 | 2.75 | 1.95 | 12 | 4.88 | 4 | 1.13 |
| 2 | 8.50 | 1.50 | 3.63 | 2.25 | 4.13 | 2.44 | 25 | 6.50 | 8 | 1.00 |
| 2 1/2 | 9.63 | 1.63 | 4.13 | 2.50 | 4.88 | 2.94 | 36 | 7.50 | 8 | 1.13 |
| 3 | 9.50 | 1.50 | 5.00 | 2.13 | 5.00 | 3.57 | 26 | 7.50 | 8 | 1.00 |
| 4 | 11.50 | 1.75 | 6.19 | 2.75 | 6.25 | 4.57 | 53 | 9.25 | 8 | 1.25 |
| 5 | 13.75 | 2.00 | 7.31 | 3.13 | 7.50 | 5.66 | 83 | 11.00 | 8 | 1.38 |
| 6 | 15.00 | 2.19 | 8.50 | 3.38 | 9.25 | 6.72 | 110 | 12.50 | 12 | 1.25 |
| 8 | 18.50 | 2.50 | 10.63 | 4.00 | 11.75 | 8.72 | 170 | 15.50 | 12 | 1.50 |
| 10 | 21.50 | 2.75 | 12.75 | 4.25 | 14.50 | 10.88 | 245 | 18.50 | 16 | 1.50 |
| 12 | 24.00 | 3.13 | 15.00 | 4.63 | 16.50 | 12.88 | 325 | 21.00 | 20 | 1.50 |
| 14 | 25.25 | 3.38 | 16.25 | 5.13 | 17.75 | 14.14 | 400 | 22.00 | 20 | 1.63 |
| 16 | 27.75 | 3.50 | 18.50 | 5.25 | 20.00 | 16.16 | 425 | 24.25 | 20 | 1.75 |
| 18 | 31.00 | 4.00 | 21.00 | 6.00 | 22.25 | 18.18 | 600 | 27.00 | 20 | 2.00 |
| 20 | 33.75 | 4.25 | 23.00 | 6.25 | 24.50 | 20.20 | 730 | 29.50 | 20 | 2.13 |
| 24 | 41.00 | 5.50 | 27.25 | 8.00 | 29.50 | 24.25 | 1400 | 35.50 | 20 | 2.63 |
| Nominal Pipe Size | Outside Diameter (O) | Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Bore (B) | Approximate Weight (kg) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
| 1/2 | 120.65 | 22.35 | 35.05 | 31.75 | 38.10 | 22.35 | 1.81 | 82.55 | 4 | 22.35 |
| 3/4 | 130.30 | 25.40 | 42.93 | 35.05 | 44.45 | 27.69 | 2.27 | 88.90 | 4 | 22.35 |
| 1 | 149.35 | 28.70 | 50.80 | 41.40 | 52.32 | 34.54 | 3.63 | 101.60 | 4 | 25.40 |
| 1 1/4 | 158.75 | 28.70 | 63.50 | 41.40 | 63.50 | 43.18 | 4.08 | 111.25 | 4 | 25.40 |
| 1 1/2 | 177.80 | 31.75 | 73.15 | 44.45 | 69.85 | 49.53 | 5.44 | 123.95 | 4 | 28.70 |
| 2 | 215.90 | 38.10 | 92.20 | 57.15 | 104.90 | 61.98 | 11.34 | 165.10 | 8 | 25.40 |
| 2 1/2 | 244.60 | 41.40 | 104.90 | 63.50 | 123.95 | 74.68 | 16.33 | 190.50 | 8 | 28.70 |
| 3 | 241.30 | 38.10 | 127.00 | 54.10 | 127.00 | 90.68 | 11.79 | 190.50 | 8 | 25.40 |
| 4 | 292.10 | 44.45 | 157.23 | 69.85 | 158.75 | 116.08 | 24.04 | 234.95 | 8 | 31.75 |
| 5 | 349.25 | 50.80 | 185.67 | 79.50 | 190.50 | 143.76 | 37.65 | 279.40 | 8 | 35.05 |
| 6 | 381.00 | 55.63 | 215.90 | 85.85 | 234.95 | 170.69 | 49.90 | 317.50 | 12 | 31.75 |
| 8 | 469.90 | 63.50 | 270.00 | 101.60 | 298.45 | 221.49 | 77.11 | 393.70 | 12 | 38.10 |
| 10 | 546.10 | 69.85 | 323.85 | 107.95 | 368.30 | 276.35 | 111.13 | 469.90 | 16 | 38.10 |
| 12 | 609.60 | 79.50 | 381.00 | 117.60 | 419.10 | 327.15 | 147.42 | 533.40 | 20 | 38.10 |
| 14 | 641.35 | 85.85 | 412.75 | 130.30 | 450.85 | 359.16 | 181.44 | 558.80 | 20 | 41.40 |
| 16 | 704.85 | 88.90 | 469.90 | 133.35 | 508.00 | 410.46 | 192.78 | 615.95 | 20 | 44.45 |
| 18 | 787.40 | 101.60 | 533.40 | 152.40 | 565.15 | 461.77 | 272.16 | 685.80 | 20 | 50.80 |
| 20 | 857.25 | 107.95 | 584.20 | 158.75 | 622.30 | 513.08 | 331.12 | 749.30 | 20 | 54.10 |
| 24 | 1041.40 | 139.70 | 692.15 | 203.20 | 749.30 | 615.95 | 635.03 | 901.70 | 20 | 66.80 |
ANSI/ASME B16.5 Class 900 Slip On Flange is a slip-on flange that complies with the ANSI/ASME B16.5 standard, suitable for high-pressure (Class 900) and large-diameter piping systems. Its design allows it to slide over the pipe and be welded, making installation simple and cost-effective. It is widely used in industries such as oil and gas, chemical, and power. The flange typically ranges in size from 1/2 inch to 24 inches and can be made from materials like carbon steel, stainless steel, or alloy steel, depending on the medium and operating conditions. During installation, welding quality must be ensured to prevent leaks or insufficient strength, making it suitable for high-pressure systems without extreme vibration.
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