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Engineering ToolBox > Bronze Flanges - ASME/ANSI 150 lb
Flange diameters, thickness, bolt circles, numbers and diameters of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 150 lb Bronze flanges with plain faces can be found in the table below:
| ANSI 150 lb Bronze Flange with Plain Face | |||||||||||||||
| Pipe Size (inches) | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 |
| Diameter of Flange (inches) | 3 1/2 | 3 7/8 | 4 1/4 | 4 5/8 | 5 | 6 | 7 | 7 1/2 | 8 1/2 | 9 | 10 | 11 | 13 1/2 | 16 | 19 |
| Thickness of Flange (inches) | 5/16 | 11/32 | 3/8 | 13/32 | 7/16 | 1/2 | 9/16 | 5/8 | 11/16 | 11/16 | 3/4 | 13/16 | 15/16 | 1 | 1 1/16 |
| Diameter of Bolt Circle (inches) | 2 3/8 | 2 3/4 | 3 1/8 | 3 1/2 | 3 7/8 | 4 3/4 | 5 1/2 | 6 | 7 | 7 1/2 | 8 1/2 | 9 1/2 | 11 3/4 | 14 1/4 | 17 |
| Numbers of Bolts | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 12 | 12 |
| Diameter of Bolts (inches) | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 7/8 | 7/8 |
150 lb bronze flanges with plain faces have two concentric gaskets retaining grooves between the port and the holes.