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BS 4504 Weld Neck Flange Dimensions and Technical Drawing DOWNLOAD BS 4504 Weld Neck Flange Dimensions and Technical Drawing PDF Get Complete details of BS 4504 Flange Standard BS 4504 Weld Neck Flange Dimensions Dimensions in MM DN PN A mm B mm C mm D mm E mm F mm G mm H mm 10 2.5,6 75 17.2 12 28 6 26 3 1.8 10 90 14 35 　 28 1.8 16 90 14 35 　 28 1.8 25 90 16 35 　 28 1.8 40 90 16 35 　 28 1.8 15 2.5,6 80 21.3 12 30 6 30 3 2 10 95 14 35 32 2 16 95 14 35 32 2 25 95 16 38 32 2 40 95 16 38 32 2 20 2.5,6 90 26.9 14 32 6 38 4 2.3 10 105 16 38 39 2.3 16 105 16 38 39 2.3 25 105 18 40 40 2.3 40 105 18 40 40 2.3 25 2.5,6 100 33.7 14 35 6 42 4 2.6 10 115 16 38 46 2.6 16 115 16 38 46 2.6 25 115 18 40 46 2.6 40 115 18 40 46 2.6 32 2.5,6 120 42.4 14 35 6 55 5 2.6 10 140 16 40 56 2.6 16 140 16 40 56 2.6 25 140 18 42 56 2.6 40 140 18 42 56 2.6 40 2.5,6 130 48.3 14 38 7 62 5 2.6 10 150 16 42 64 2.6 16 150 16 42 64 2.6 25 150 18 45 64 2.6 40 150 18 45 64 2.6 50 2.5,6 140 60.3 14 38 8 74 5 2.9 10 165 18 45 74 2.9 16 165 18 45 74 2.9 25 165 20 48 74 2.9 40 165 20 48 74 2.9 65 2.5,6 160…