The disclosure relates to a suction liner (8) for a centrifugal pump (1) for processing slurries, the centrifugal pump comprising an impeller (3) housed in a casing (2), the suction liner (8) comprising a cylindrical portion (10) arrangeable in the casing (2) of the centrifugal pump (1), and a flange portion (11) which protrudes outwards in a radial direction from the cylindrical portion (10). The flange portion (11) is arrangeable such that, when mounted in a centrifugal pump (1), at least a portion of a front end surface (12) of the flange portion (11) of the suction liner (8) abuts against at least a portion of a front end (14) of the impeller (3), such to seal an axial gap between the suction liner (8) and the impeller (3), and at least the front end surface (12) of the flange portion (11) is made of a low friction polymer. The disclosure further relates to a centrifugal pump (1) for processing slurries, the centrifugal pump comprising such a suction liner (8). The suction liner (8) and the centrifugal pump (1) allow preventing recirculation of pumping liquid in a centrifugal pump and, thereby, reducing wear.