DNmm DNin φmm SCH5S SCH10S SCH20S SCH40S Sch80s SCH20 SCH30 Sch40 Sch60 Sch80 Sch100 Sch120 Sch140 Sch160 XXS
10 3/8 17 1.2 1.6 2 2.5 3.2 2.5 3.5
15 1/2 22 1.6 2 2.5 3 4 3 4 5 7.5
20 3/4 27 1.6 2 2.5 3 4 3 4 5.5 8
25 1 34 1.6 2.8 3 3.5 4.5 3.5 4.5 6.5 9
32 1 1/4 42 1.6 2.8 3 3.5 5 3.5 5 6.5 10
40 1 1/2 48 1.6 2.8 3 4 5 4 5 7 10
50 2 60 1.6 2.8 3.5 4 5.5 3.5 4 5 5.5 7 8.5 11
65 2 1/2 76 2 3 3.5