33 C.F.R. § 155 app A to Part 155
Current through September 30, 2024
[See §§ 340, 350, 370 and 380 of this part]
| Item | Description | Dimension |
| 1 | Outside diameter | 215 mm. (8 in.). |
| 2 | Inside diameter | According to pipe outside diameter. |
| 3 | Bolt circle diameter | 183 mm. (73/16 in.). |
| 4 | Slots in flange | 6 holes 22 mm. (7/8 in.) in diameter shall be equidistantly placed on a bolt circle of the above diameter, slotted to the flange periphery. The slot width is to be 22 mm. (7/8 in.). |
| 5 | Flange thickness | 20 mm. (3/4 in.). |
| 6 | Bolts and nuts | 6, each of 20 mm. (3/4 in.) in diameter and of suitable length. |
The flange must be of steel having a flat face, with a gasket of oilproof material, and must be suitable for a service pressure of 6 kg./cm.2 (85 p.s.i.).
The steel materials used must meet the material specifications of standard B16.5, Steel Pipe Flanges and Flanged Fittings of the American National Standards Institute. (See § 154.106 of this chapter.)
33 C.F.R. 155 app A to Part 155