D n-L B d K C f DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN150 DN200 DN250 DN300 DN350 DN400 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 0.6 1.0 1.6 18 80 19 12 55 12 M10 4 40 2 25 90 26 14 65 12 M10 4 50 2 32 100 33 14 75 12 M10 4 60 2 38 120 39 16 90