Views: 16 Author: LILY GUO Publish Time: 2016-03-25 Origin: www.kaysensteel.com
ASME B16.11 threaded fittings
Dia Nominal NPT | Major Diameter mm | Tapping Drill Size mm | TPI | Pitch mm |
1/16" | 7.895 | 6.00 | 27 | 0.941 |
1/8" | 10.242 | 8.25 | 27 | 0.941 |
1/4" | 13.616 | 10.70 | 18 | 1.411 |
3/8" | 17.055 | 14.10 | 18 | 1.411 |
1/2" | 21.223 | 17.40 | 14 | 1.814 |
3/4" | 26.568 | 22.60 | 14 | 1.814 |
1" | 33.228 | 28.50 | 11.5 | 2.209 |
1 1/4" | 41.985 | 37.00 | 11.5 | 2.209 |
1 1/2" | 48.054 | 43.50 | 11.5 | 2.209 |
2" | 60.092 | 55.00 | 11.5 | 2.209 |
2 1/2" | 72.699 | 65.50 | 8 | 3.175 |
3" | 88.608 | 81.50 | 8 | 3.175 |
3 1/2" | 101.316 | 94.30 | 8 | 3.175 |
4" | 113.973 | 107.00 | 8 | 3.175 |
5" | 141.300 | 134.384 | 8 | 3.175 |
6" | 168.275 | 161.191 | 8 | 3.175 |
8" | 219.075 | 211.673 | 8 | 3.175 |
10" | 273.050 | 265.311 | 8 | 3.175 |
12" | 323.850 | 315.793 | 8 | 3.175 |
Description | Class Designation | ||
2000 | 3000 | 6000 | |
Elbows 45 and 90 degrees Tees, Crosses, CouplingHalf-Coupling, Cap | 1/2 - 4 | 1/2 - 2 | 1/2 - 2 |
1/2 - 4 | 1/2 - 2 | 1/2 - 2 | |
1/2 - 4 | 1/2 - 2 | 1/2 - 2 | |
Pipe Wall | SCH 80 and XS | SCH 160 | XXS |