- Pneumatic means relating to air or other gases. The term has a broad range of uses but, in regard to a tool or machine, its definition alters slightly to mean the tool or machine is operated through the uses of air. This is done by compressing the air so that the captured air powers the tool or machine.
- A centrifugal pump is a pump with rotating blades that disperse liquids outward. The liquid a pump propels is not limited to water and has a large range of uses. One example would be use of centrifugal pumps to pump sewage. Another example, on a smaller, more delicate scale would be those used in hospitals to pump blood through cardiac patients.
- A pneumatic, centrifugal pump is a pump that uses compressed air to power a rotating impeller that would force a liquid outward, usually through some form of a pipe. An example of an pump that uses both air and water to work--like a pneumatic centrifugal pump does--would be a hydro-pneumatic tank which is used in water systems with irregular pressure.
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