N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-13.2
Current through Register Vol. 46, No. 53, December 31, 2024
Boiler openings must meet the requirements of section IV of the ASME Code.
All threaded openings in a boiler shall be tapped into material having a minimum thickness as specified for the various standard pipe sizes in the following table:
MINIMUM THICKNESS OF MATERIAL FOR TAPPINGS
| Pipe size | Minimum thickness of material or length of thread required |
| (inches) | (inches) |
| 1 and under | 1/4 |
| 11/4 to 2, inclusive | 5/16 |
| 21/2 | 7/16 |
| 3 to 31/2, inclusive | 5/8 |
| 4 to 5, inclusive | 7/8 |
| 6 to 8, inclusive | 1 |
| 9 to 12, inclusive | 11/4 |
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-13.2