| Nominal
Pipe Size |
Style
Number |
A |
B* |
C |
D |
Orifice
Dia. |
| 3/8 |
UN-SW-0375 |
2-5/32 |
1-1/8 |
0.695 |
0.385 |
0.348 |
| ½ |
UN-SW-050 |
2-23/32 |
1-5/16 |
0.860 |
0.385 |
0.464 |
| ¾ |
UN-SW-075 |
2-15/16 |
1-5/8 |
1.070 |
0.505 |
0.593 |
| 1 |
UN-SW-100 |
3-41/64 |
2-¼ |
1.335 |
0.505 |
0.890 |
| 1-¼ |
UN-SW-125 |
3-29/32 |
2-¾ |
1.680 |
0.505 |
1.135 |
| 1-½ |
UN-SW-150 |
4-23/64 |
3-¼ |
1.920 |
0.505 |
1.385 |
| 2 |
UN-SW-200 |
5-55/64 |
3-½ |
2.411 |
0.625 |
1.555 |
| 2-½ |
UN-SW-250 |
5 |
3-¾ |
2.919 |
0.625 |
1.555 |
| 3 |
UN-SW-300 |
5-7/16 |
4-½ |
3.545 |
0.625 |
2.025 |
| 4 |
UN-SW-400 |
6-51/64 |
5-½ |
4.550 |
0.755 |
2.560 |
|