Protecting the Pump Body: Prevent solid particles in high-speed, high-concentration slurry from directly impacting and wearing the inner wall of the pump casing.
Reducing Wear and Corrosion: Liners are usually made of highly wear-resistant and corrosion-resistant materials (such as high-chrome cast iron, rubber, etc.) to effectively resist erosion and chemical corrosion of internal metal components by the slurry.
Maintaining Operational Efficiency: By reducing the gap between the impeller and the pump casing, internal recirculation leakage is minimized, thereby improving the volumetric efficiency and overall performance of the pump.
Extending Equipment Lifespan: As a wear part, the liner can be replaced individually, preventing the entire machine from being scrapped due to localized wear, and reducing maintenance costs.
According to the structural form, liners can be divided into:
Single-Casing Pump Liner: Directly exposed, such as vertical slurry pumps, submersible pumps, etc.;
Double-Casing Pump Liner: Protected by an outer pump casing and fixed by external pressure, such as ZGB type and ZJ type slurry pumps.
