Evidence-first editorial standard
This guide separates observed facts, engineering assumptions and data that still require confirmation. It does not promise a universal service life or replace the exact product data and project specification.
A slurry pump wears inside its own wet end, and that wear is the pump maker’s domain
Impeller, volute or casing liner, throatbush and frame plate are designed as replaceable wear parts in hard white iron or elastomer, matched to the pump’s hydraulics. Replacing them with ceramic is rarely possible without the manufacturer, so this page deals with what surrounds the pump.
The pump box and suction feed wear from turbulence and settled solids
Where the slurry enters the pump box, the falling stream and the swirl above the suction strike the walls and floor, and coarse solids that settle are dragged towards the suction. A hard lining on the impact wall and the floor, with a smooth transition into the suction spool, removes a common source of repeated repairs.
The discharge spool and first bends take the most disturbed flow in the line
Slurry leaves the pump with a swirling, uneven velocity profile, so the first spool and the first elbow downstream often wear faster than anything else in the line. Ceramic-lined spools and elbows such as IC PIPE suit this zone, provided the joints are flush; the article on slurry velocity explains why erosion concentrates there.
Valves, reducers and branches near the pump are the next weak points
Every change of section or direction close to the pump adds turbulence to an already disturbed flow. Reducers and tees wear on predictable faces, described in the article on tees and reducers, and custom shaped parts made to drawing, as with IC CUSTOM, can line pieces that no standard spool covers.
Where ceramic does not belong around a pump
Rotating parts, flexible connections that absorb vibration, and pieces that must be dismantled often for maintenance are poor candidates, because brittle elements and bond lines dislike movement and repeated handling. Very coarse feed with tramp metal can also break a lining that would last in fine slurry. In those places, elastomer or hard metal usually remains the better choice, as set out in the comparison of ceramic, Ni-Hard and wearback pipe.
The data a supplier needs for the pump area
Provide the pump model and duty, the slurry density, solids concentration and particle size, the flow, the pump box and spool drawings, the position of valves and bends after the pump, the current materials and their life per part, and photographs of the worn pieces. The ceramic-lined pipe specification checklist covers the spools in detail.