An impeller is a rotating component inside a pump or motor that plays a critical role in moving liquids or gases. It consists of a series of curved blades attached to a central hub. When the motor powers the impeller to spin, it pushes the fluid outward from the center toward the edges, creating flow and increasing pressure.

Impellers are designed to efficiently convert mechanical energy from the motor into kinetic energy in the fluid. The shape and size of the blades are carefully engineered to optimize performance for different types of pumps and fluids. Depending on the application, impellers can be open, semi-open, or closed, each suited for handling various fluid types and conditions.

In summary, the impeller is the heart of a pump or motor system, responsible for moving fluids smoothly and efficiently to meet the needs of diverse industrial, commercial, and residential applications.