REDUCING FLANGE XR Material: of nodular grey iron EN-GJS – DIN 1693, bitumenized Stud bolts: galvanically zinc coated / A2 The reducing flanges XR render it possible to reduce a given pipe nominal size to an essentially smaller value. Because of the very small overall length, the reduction takes place at the shortest distance. The FFR fittings with conventional overall lengths and designs are inapplicable