REFINING ELEMENTS
A pair of co-operating refining elements (10, 11) intended for a refiner for the working of lignocellulosic fiber material in a refining gap between two opposed refining discs rotating relative to each other. The refining elements (10, 11) are intended to be positioned directly in front of each other on opposed refining discs. The refining elements (10, 11) are further provided with a plurality of projecting working means in the form of pins (12, 13) with substantially circular cross section, where the pins on one of the refining elements are arranged to extend into interspaces between the pins on the other refining element. The refining elements further are provided with a number of flow restrictions in the form of strips (15, 16) which substantially extend in the circumferential direction.