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Another critical factor in impeller design is the material used for construction. Sewage pump impellers can be made from various materials, including cast iron, stainless steel, or thermoplastics. The choice of material depends on the chemical composition of the waste being pumped. For example, stainless steel impellers offer excellent corrosion resistance, making them suitable for applications involving harsh chemicals.
Wear Factors: These components experience wear from the slurry and need to be checked regularly.
Function: Shaft sleeves protect the pump shaft from the slurry and the mechanical seals.