1. The hydraulic circuit powers the actuators which then move the control surfaces. 2. Using a hydraulic circuit system, it adjusts oil-pressurized shocks to control damping rates. 3. The brake system uses compressed air to activate the dual hydraulic circuit disk brakes. 4. The control valve is one of the most expensive and sensitive parts of a hydraulic circuit . 5. Modern cars have redundant hydraulic circuits ( two separate circuits ) to ensure against total hydraulic failure. 6. The ducts of the hydraulic circuit are made from steel, not plastic, to support operational loads up to. 7. The pilot's movement of a control causes the mechanical circuit to open the matching servo valve in the hydraulic circuit . 8. Pressure flows from the hydraulic circuit to the suspension cylinders, pressurizing the bottom part of the spheres and suspension cylinders. 9. Many of these are also "'high-pressure coolant "'systems, in which the operating pressure can be hundreds to several thousand hydraulic circuits . 10. The PUMPMAN series Pumps have been recently invented which do not use a hydraulic pump and complex hydraulic circuits for their operation.
