PRESSURE RATING | CLASS 150 300 400 600 900 1500 2500 LBS | CLASS 150 300 400 600 900 LBS | CLASS 75 150 300 400 600 900 LBS | CLASS 300 400 600 900 1500 2500 LBS | CLASS 150 300 400 600 900 1500 2500 LBS | CLASS B & D TABLE 2/3, CLASS E TABLE 4 | PN 2.5 6 10 16 25 40 63 100 160 250 320 400 | PN 2.5 6 10 16 25 40 |