DN (Dу) D1 D2 D3 D4
20 75 58-10.0 25 21
25 85 68-10.0 30 25
32 100 78-10.0 46.5 31.5
40 110 88-10.0 50 40
50 125 102-12.0 62 54
65 145 122-22.0 72 60
80 160 133-23.0 92 82
100 180 158-18.0 115 103
125 210 184-34.0 145 135
150 240 212-32.0 159 150
175 270 242-32.0 190 177
225 325 295-32.0 240 226
250 350 320-20.0 290 276
300 400 370-20.0 325 300
400 515 482-20.0 430 400

Development of production technologies for pipes and fittings with dimensions differing from the ones given in the tables is possible at customer’s request.