Inch (mm)I.D. (mm)O.D. (mm)O.D.+PVC Packing(M) - 4.0 6.0 7.0 100 - 4.6 6.6 8.0 100 - 5.0 7.0 8.0 100 - 5.4 7.8 9.5 100 - 5.9 8.4 10.0 100 - 6.6 9.0 10.0 100 1/4 9.5 12.5 13.2 50 3/8 12.5 15.7 17.7 50 1/2 16.1 19.5 21.3 50 - 19.1 22.2 24.5 50 3/4 20.8 24.3 26.7 40 - 22.0 25.7 28.0 40 1 26.0 30.0 33.0 30 1-1/4 34.0 39.0 42.2 30 1-1/2 39.0 44.0 47.8 20 2 51.0 56.0 59.4 10 2-1/2 63.0 67.5 72.5 10