Full definition
A heavy-duty centrifugal pump designed to handle abrasive, high-solids-content mixtures (slurries) of water and mineral particles in mining, dredging, and mineral processing operations. The impeller and casing are the primary wear components, constructed from: high-chrome white iron (27% Cr — hardness 600-700 HBN, for coarse abrasive slurries), natural rubber lining (40-55 Shore A — superior for fine particle and impact abrasion, 2-3x life of chrome in many conditions), or polyurethane (for fine abrasion at low concentration). Pump classification per ISO 8142. Design features: wide passages (to pass large solids), replaceable liners, heavy-duty bearings, and shaft seals (gland packing, expeller, or mechanical). Solids concentration: up to 60-70% by weight. Head: 10-60 m per stage. Flow: 10-10,000+ m³/h. Per Hydraulic Institute and manufacturer performance curves. Brands: Metso (formerly Warman — market originator of the heavy-duty slurry pump), Weir Minerals (Warman legacy), KSB (GIW), Flowserve, and Xylem. Rubber-lined pumps dominate in grinding, flotation, and tailings applications; chrome pumps in coarse crushing circuit duties.