Switching between flow control valves in a multiple-speed circuit is done using a ______.

Switching between flow control valves in a multiple-speed circuit is done using a ______.

• A. Relief valve
• B. Needle valve
• C. Directional control valve
• D. Check valve

Answer: (C)

Switching flow between different speed settings in a hydraulic circuit is achieved with a directional control valve. This valve directs the pump flow along different paths, so the actuator can be fed through the high-speed route or the restricted route controlled by the chosen path. It acts like a traffic director for fluid, changing which flow-control element is engaged. In contrast, a relief valve protects against overpressure, a needle valve throttles flow in a single path, and a check valve only prevents backflow. So, to switch between flow control valves, you use a directional control valve.

Switching flow between different speed settings in a hydraulic circuit is achieved with a directional control valve. This valve directs the pump flow along different paths, so the actuator can be fed through the high-speed route or the restricted route controlled by the chosen path. It acts like a traffic director for fluid, changing which flow-control element is engaged. In contrast, a relief valve protects against overpressure, a needle valve throttles flow in a single path, and a check valve only prevents backflow. So, to switch between flow control valves, you use a directional control valve.