AWWA Class 1B Steel-Ring Flange 86PSI
AWWA Steel-Ring Flange 175-150 psi TABLE 2 CLASS D
AWWA Standard Steel-Hub Flange (175-150 psi) TABLE3 CLASS D
AWWA Steel-Hub Flange 275 psi Table 4 Class E
AWWA Steel-Ring Flange 275 psi Table 5 Class E
AWWA Steel-Ring Flange 300 psi TABE 6 CLASS F
AWWA C207