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DIN 2629 PN320 Welding Neck Flange Dimensions, Technical Drawings, and Approx. Flange Weight DOWNLOAD DIN 2629 PN320 WELDING NECK FLANGE DIMENSIONS, TECHNICAL DRAWINGS, AND APPROX. FLANGE WEIGHT PDF Get Complete details of DIN Standard Flanges DIN 2629 PN320 Welding Neck Flange Dimensions Dimensions and Approx. Flange Weight Pipe Parameter d1 Flange Dimension Neck Size Hub Size Screw Approx. Flange Weight DN  ISO  DIN  D  b  k  h1  d3  s r  h2  d4  f  No. of Holes d2  KG/PCS 10 –  14 125 24 85 58 44 2.6 4 6 40 2 4 18 2.1 17.2 –  125 24 85 58 44 2.6 4 6 40 2 4 18 2.09 15 –  20 130 26 90 60 48 3.2 4 6 45 2 4 18 2.49 21.3 –  130 26 90 60 48 3.2 4 6 45 2 4 18 2.49 25 –  30 160 34 115 78 68 5 4 8 68 2 4 22 5.14 33.7 –  160 34 115 78 68 5 4 8 68 2 4 22 5.11 40 –  44.5 195 38 145 88 92 6.3 6 10 88 3 4 26 8.53 45.3 –  195 38 145 88 92 6.3 6 10 88 3 4 26 8.47 50 63.5 –  210 42 160 100 106 8 6 10 102 3 8 26 10.52 65 88.9 –  255 51 200 120 138 11 6 12 122 3 8 30 19.26 80 101.6 –  275 55 220 130 156 12.5 8 14 138 3 8 30 24.81 100 –  133 335 65 265 145 186 16 8 16 162 3 8 36 42.18 125 –  159 380 75 310 175 230 20 8 20 188 3 12 36 64.55 168.3 –  380 75 310 175 230 20 8 20 188 3 12 36 63.3 150 193.7 – …