Pressure Classes
Pipe Size (in.) |
Pressure Rating1 (psi) |
---|---|
4 | 350 |
6 | 350 |
8 | 350 |
10 | 350 |
12 | 350 |
14 | 350 |
16 | 350 |
18 | 350 |
20 | 350 |
24 | 350 |
30 | 250 |
36 | 250 |
42 | 250 |
48 | 250 |
54 | 250 |
60 | 250 |
64 | 250 |
1.) Pressure rating designated is maximum water working pressure and is based on the 350 psi allowable rating of 24" and smaller flanges in C111 and the 250 psi maximum rating of other sizes of C110 or C115 flanges. Consult AMERICAN on higher pressure or temperature requirements.