Rotary pumps are a type of positive displacement pump that move fluids by trapping a fixed amount of liquid and forcing it through the discharge pipe. They work by using rotating elements, such as gears or vanes, to create a vacuum that draws in the fluid. This makes them ideal for handling viscous liquids, like oils and syrups, as well as for applications requiring a steady flow. These pumps are widely used in various industries, including food processing, chemical manufacturing, and petroleum. Their design allows for precise flow control, making them essential for tasks where accuracy is crucial. Overall, rotary pumps are reliable and efficient tools for fluid transfer.