Hydraulics systems convert pressurized oil into mechanical energy, making them more efficient than other types of motors. Hydraulic pumps move fluid throught the system while valves control the flow. Filtration systems keep fluid clean and remove water and air from hydraulic fluid. Seals keep fluid in and contaminants out to ensure the system runs efficiently. Hydraulic motors convert hydraulic energy to rotary energy for powering lifts, fans, and other equipment.