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There are several types of impellers used in sewage pumps, each with distinct features catering to various types of sewage applications. The most common types include open, semi-open, and enclosed impellers. Open impellers have no front shroud, allowing for larger solids to pass through without clogging. This makes them ideal for handling raw sewage containing debris. Semi-open and enclosed impellers, on the other hand, are more suitable for cleaner liquids, offering better efficiency and pressure generation.

The Compact Footprint of Vertical Multistage Centrifugal Pumps

Understanding the Importance of Impeller Wear Ring Maintenance

Materials: High-chrome iron, ductile iron, and stainless steel are commonly used materials.

b. NPSH (Net Positive Suction Head):

Establishing a Pump Wet End Replacement Schedule

3. Casing

Function: Shaft sleeves protect the pump shaft from the slurry and the mechanical seals.