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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.

Structural Engineering Considerations for Deep Pit Pumping

5. Shaft and Bearing Assembly

   - Most slurry pump manufacturers provide selection charts that correlate slurry characteristics and operating conditions with suitable pump models.

The Role of Vertical Stage Pumps in High-Pressure Applications

3. Casing

Materials: Materials used for shaft sleeves include hardened stainless steel and ceramic-coated materials.

   - Volute Liners: Protect the pump casing in the volute section.

   - Mechanical Seals: Provide a tight seal and reduce leakage.

8. Pump Backplate