About this part
Slurry pump wet-end parts wear at predictable rates under their specific duty conditions. The major wear items are the impeller, the volute liner (or shell liner in horizontal pumps), the throat bush, the frame plate liner, and the shaft sleeve under the gland or mechanical seal. Spare-part planning typically holds at least one complete wet-end set per critical duty, with longer-life items held in lower quantities.
Compatible Equipment
Material Options
- Hard metal (28% Cr white iron)
- Standard hard-metal wet-end. Best for coarse, high-impact slurries.
- Natural rubber
- Best for fine-particle, abrasive slurries with moderate solids.
- Polyurethane-modified compound
- Compromise rubber compound for mixed-particle service.
- Ni-Hard
- Lower-cost alloy iron; less wear-resistant than 28%-Cr but acceptable for lighter duty.
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Wet-End Materials | 28% Cr, Ni-Hard, natural rubber, polyurethane compound | |
| Major Parts | Impeller, throat bush, volute liner, frame plate liner, shaft sleeve | |
| Sealing Options | Gland water, expeller, mechanical seal | |
| Drawing | Match parent pump OEM drawing |
Wear Factors
- Impeller tip speed (highest sensitivity)
- Solids concentration
- Particle size and angularity
- Sealing condition (gland-water flow, seal face condition)
- Cavitation under low NPSH
Replacement Notes
Wet-end replacement is scheduled against tracked wear: many operators measure impeller and liner clearances at each shutdown and replace when clearances exceed limits. Sealing system condition is monitored in operation (gland-water flow on packed glands, leakage on mechanical seals).