CAT 16A Metal Backing Ring for Flanges

 

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This galvanised mild steel backing ring has the effect of transferring the load from the flange attachment bolts to the total face of the flange. Flange backing rings conform to the drilling pattern of AS 2129 – Table E (Flanges for Pipes, Valves and Fittings) unless otherwise specified.

Vinidex Code Size DN (mm) ID OD T PCD Hole Diameter No. of Holes
83500 50 80 150 8 114 18 4
83510 65 100 166 10 126 18 4
83520 80 109 185 10 146 18 4
83530 100 140 215 10 178 18 8
83540 125 170 255 12 210 18 8
83550 150 203 280 12 235 22 8
83560 200 252 335 12 292 22 8
83590 300 360 455 12 406 26 12

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