Which types of pumps can typically pass small solids?

The answer indicating "Centrifugal and Diaphragm" pumps as those capable of typically passing small solids is correct due to their operational design and mechanics.

Centrifugal pumps utilize the kinetic energy from a rotating impeller to move liquids, and they can handle small solids suspended within the fluid because the impeller and volute design allows for some clearance. This helps prevent blockages that could occur with larger solids, making them suitable for applications where small particles are present, like in wastewater management or certain marine applications.

Diaphragm pumps, on the other hand, work by using a flexible diaphragm that moves back and forth to create a pumping action. These pumps can also tolerate small solids in the fluid because the diaphragm can flex around the particulates without becoming clogged. This feature allows diaphragm pumps to handle slurries that may contain small debris or sediment.

Other types of pumps, such as positive displacement pumps and screw pumps, typically work on different principles and may not be specifically designed to handle solids. Submersible pumps can also have limitations regarding the size and type of solids they can manage, as they often work best with clean fluids. Hence, the selection of centrifugal and diaphragm pumps for applications involving small solids is supported by their