| Type 6B Flanges for 5000 PSI Rated Working Pressure | |||||||||||||||||||||||
| HUB AND BORE DIMENSIONS | Nominal Size and Bore of Flange | Hub Length Threaded Line-Pipe Flange | Hub Length Threaded Casing Flange | Hub Length Tubing Flange | Hub Length Welding Neck Line-Pipe Flange | Neck Diameter Welding Neck Line-Pipe Flange | Tolerance | Max. Bore of Welding Neck Flange | Maximum Bore | Outsde Diameter of Flange | Tolerance | Maximum Chamfer | Diameter of Raised Face | Total Thickness of Flange | Basic Thickness of Flange | Diameter of Hub | Diameter of Bolt Circle | Number of Bolts | Diameter of Bolts | Diameter of Bolt Holes | Bolt Hole Tolerance (see note) | Length of Bolts | Ring Number. R or RX |
| L1 | L2 | L3 | L4 ± 0.06 | A | A | B | B | D | D | C | F | T | G | A | P | ||||||||
2.1/16 | 2.56 | - | 2.56 | 4.31 | 2.38 | +0.09 / -0.03 | 1.72 | 2.09 | 8.50 | ±0.06 | 0.12 | 4.88 | 1.81 | 1.50 | 4.12 | 6.50 | 8 | 7/8 | 1.00 | +0.06 | 6.00 | 24 | |
2.9/16 | 2.81 | - | 2.81 | 4.44 | 2.88 | +0.09 / -0.03 | 2.16 | 2.59 | 9.62 | ±0.06 | 0.12 | 5.38 | 1.94 | 1.62 | 4.88 | 7.50 | 8 | 1 | 1.12 | +0.06 | 6.50 | 27 | |
3.1/8 | 3.19 | - | 3.19 | 4.94 | 3.50 | +0.09 / -0.03 | 2.65 | 3.22 | 10.50 | ±0.06 | 0.12 | 6.62 | 2.19 | 1.88 | 5.25 | 8.00 | 8 | 1.1/8 | 1.25 | +0.06 | 7.25 | 35 | |
4.1/16 | 3.88 | 3.88 | 3.88 | 5.19 | 4.50 | +0.09 / -0.03 | 3.47 | 4.28 | 12.25 | ±0.06 | 0.12 | 7.62 | 2.44 | 2.12 | 6.38 | 9.50 | 8 | 1.1/4 | 1.38 | +0.06 | 8.00 | 39 | |
5.1/8 | 4.44 | 4.44 | - | 6.44 | 5.56 | +0.09 / -0.08 | 4.34 | 5.16 | 14.75 | ±0.06 | 0.12 | 9.00 | 3.19 | 2.88 | 7.75 | 11.50 | 8 | 1.1/2 | 1.62 | +0.06 | 10.00 | 44 | |
7.1/16 | 5.06 | 5.06 | - | 7.13 | 6.63 | +0.16 / -0.03 | 5.22 | 7.16 | 15.50 | ±0.12 | 0.25 | 9.75 | 3.62 | 3.25 | 9.00 | 12.50 | 12 | 1.3/8 | 1.50 | +0.06 | 10.75 | 46 | |
9 | 6.06 | 6.06 | - | 8.81 | 8.63 | +0.16 / -0.03 | 6.84 | 9.03 | 19.00 | ±0.12 | 0.25 | 12.50 | 4.06 | 3.62 | 11.50 | 15.50 | 12 | 1.5/8 | 1.75 | +0.09 | 12.00 | 50 | |
11 | 6.69 | 6.69 | - | 10.44 | 10.75 | +0.16 / -0.03 | 8.53 | 11.03 | 23.00 | ±0.12 | 0.25 | 14.63 | 4.69 | 4.25 | 14.50 | 19.00 | 12 | 1.7/8 | 2.00 | +0.09 | 13.75 | 54 | |
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