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DIN 2637 PN100 Welding Neck Flange Dimensions, Technical Drawings, and Approx. Flange Weight DOWNLOAD DIN 2637 PN100 WELDING NECK FLANGE DIMENSIONS, TECHNICAL DRAWINGS, AND APPROX. FLANGE WEIGHT PDF Get Complete details of DIN Standard Flanges DIN 2637 PN100 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 –  14 100 20 70 45 28 1.8 4 6 40 2 4 14 1.07 17.2 –  100 20 70 45 32 1.8 4 6 40 2 4 14 1.08 15 –  20 105 20 75 45 32 2 4 6 45 2 4 14 1.19 21.3 –  105 20 75 45 34 2 4 6 45 2 4 14 1.19 25 –  30 140 24 100 58 48 2.6 4 8 68 2 4 18 2.61 33.7 –  140 24 100 58 52 2.6 4 8 68 2 4 18 2.6 40 –  44.5 170 26 125 62 65 2.9 6 10 88 3 4 22 4 48.3 –  170 26 125 62 70 2.9 6 10 88 3 4 22 3.99 50 –  57 195 28 145 68 86 3.2 6 10 102 3 4 26 5.72 60.3 –  195 28 145 68 90 3.2 6 10 102 3 4 26 5.7 65 76.1 –  220 30 170 76 108 3.6 6 12 122 3 8 26 7.43 80 88.9 –  230 32 180 78 120 4 8 12 138 3 8 26 8.58 100 –  108 265 36 210 90 145 5 8 12 162 3 8 30 13.02 114.3 –  265 36 210 90 150 5 8 12 162 3 8 30 12.79 125 –  133 315…