ISO TC 67/SC 4

Nominal size and bore of flange Neck diameter of welding neck flange Tolerance for HL Maximum bore of welding neck flange HL JL ± 0,76 (0,03) mm (in) mm (in) mm (in) mm (in) 52 (2 1/16) 60,5 (2,38) 43,0 (1,69) 65 (2 9/16) 73,2 (2,88) 54,1 (2,13) 98 (3 1/8 ) 88,9 (3,50) 66,5 (2,62) 103 (4 1/16) 114,3 (4,50) 87,4 (3,44) 130 (5 1/8 ) 141,2 (5,56 ... ................
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