ASME/ANSI B16.5 Class 600 LJ
The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system. Nominal Pipe Size Outside Diameter of Flange Thickness of Lap Joint Min. Diameter of Hub Length Through Hub Bore Corner Radius of Bore of Lapped Flange Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approxi-mate Weight kgs NPS O tf X Y B r W I n 1/2 95 14.3 38 22 22.9 3 66.7 15.9 4 0.70 3/4 115 15.9 48 25 28.2 3 82.6 19.1 4 1.16 1 125 17.5 54 27 34.9 3 88.9 19.1 4 1.50 1 1/4 135 20.7 64 29 43.7 5 98.4 19.1 4 2.01 1 1/2 155 22.3 70 32 50.0 6 114.3 22.2 4 2.83 2 165 25.4 84 37 62.5 8 127.0 19.1 8 3.42 2 1/2 190 28.6 100 41 75.4 8 149.2 22.2 8 5.00 3 210 31.8 117 46 91.4 10 168.3 22.2 8 6.71 3 1/2 230 35.0 133 49 104.1 10 184.2 25.4 8 8.5...