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   - Ensure the pump has adequate NPSH available to avoid cavitation.

   - Temperature: Note the operating temperature of the slurry.

Selecting the right type of impeller is essential for the pump's performance. For instance, if a pump is expected to handle a high volume of sewage containing large solids, an open impeller would be more effective. Conversely, if the pump is mainly handling gray water with minimal solids, a semi-open or enclosed impeller would suffice.

Materials: Liners are often made from high-chrome alloys, rubber, or other wear-resistant materials.

Function: The backplate provides structural support and helps in mounting the pump.

Wear Factors: The backplate can wear due to slurry contact and mechanical stresses.