Full definition
Rotating rotor of the centrifugal slurry pump that transfers energy to the fluid. The highest-wear component in abrasive pulp service. Materials: high-chrome A05 alloy (27% Cr, 680–750 HBN) for severe abrasion, or natural-rubber vulcanised for fine-particle slurries (< 6 mm) at low velocity. Diameters: 150–700 mm. Brands: Warman (Weir), Metso, KSB. Correct material selection triples impeller service life.