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.
Function: Bearing assemblies support the pump shaft and ensure smooth operation.
- Most slurry pump manufacturers provide selection charts that correlate slurry characteristics and operating conditions with suitable pump models.
The pump casing encases the impeller and provides a pathway for the slurry to flow. It is structured to withstand high-pressure conditions and is often made from durable materials such as cast iron or high chromium content alloys. The casing must also be designed to minimize wear caused by the abrasive nature of the slurry, making material selection critical for long-term performance.
a. Manufacturer’s Selection Chart:
Wear Factors: Continuous contact with the slurry and seals can cause wear on the shaft sleeves.
6. Bearing Assemblies
- Volute Liners: Protect the pump casing in the volute section.