What pump type is characterized by its low to mid speed of 200-1200 rpm?

The diaphragm pump is characterized by its operation at low to mid speeds, typically ranging from 200 to 1200 revolutions per minute (rpm). This type of pump operates using a flexible diaphragm that moves back and forth, creating pressure to push fluids through the system. The design allows for efficient handling of various liquids, including those that are viscous or contain solids.

Diaphragm pumps are particularly valued in applications where fluid cleanliness is essential, as they can minimize contamination risk in comparison to some other pump types. Their speed range suits various aquaculture and agricultural applications where precise flow rates are necessary, such as in pesticide or aquatic pest management settings.

Other pump types have different characteristics: centrifugal pumps utilize rotational energy to move liquids and can operate at higher speeds; piston pumps use a reciprocating mechanism for high pressures and are often found in applications where strong fluid delivery is needed; roller pumps, on the other hand, are typically used for transferring non-viscous fluids and have a specific speed range but differ from diaphragm pumps in design and operation.