The lap joint flangeis practically identical to a slip-on flange except it has a radius at the intersetion of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint sutb end. Normally, a lap joint flange and the lap joint stub end are matched together in an assembly system. Lap joint flanges with a hub have published specifications that range from 1/2" thru 24". Sizes above 24" are produced as lap joints to slip on dimensions.

CSM provides Lap Joint pipe flanges in all material grades, specifications and sizes.