Definition: The word "amplidyne" refers to a specific type of device used for high-pressure, low-pressure or high-speed fluid transmission. It's often used in oil and gas industries to transmit liquids through pipelines, reducing energy losses while increasing efficiency. Definition: Amplidyne devices are specialized pumps that can be used for both high-pressure and low-pressure fluids, as well as for high-speed flows, improving efficiency and minimizing energy consumption. They are typically designed with a narrow pressure range orifice and have a series of valves to control the flow rate efficiently.