a separator in which a product such as milk is to be processed , the separator includes : a centrifugal drum ; an admission tube ; a distributor including an admission chamber located downstream of the admission tube and distribution channels leading into a centrifugal chamber of the centrifugal drum . a rib body is located in the admission chamber and the rib body provides an outlet to the distributor channels . the rib body includes a plurality of ribs and a base section connecting the plurality of ribs along a periphery of the base section .