What type of valve is used in a pneumatic system to control the speed of the actuator?

In a pneumatic system, controlling the speed of the actuator is crucial for precise operation. The flow-controlled valve is specifically designed for this purpose. It regulates the amount of air flowing to and from the actuator, thereby influencing the speed at which the actuator moves. By adjusting the flow of air, operators can fine-tune the performance of the pneumatic system to meet specific operational requirements.

While the other types of valves serve important functions within a pneumatic system, they do not directly control the speed of actuators. A pressure-relief valve is primarily used for safety, preventing over-pressurization within the system. An exhaust valve is involved in allowing air to escape the system, which can affect cycling times, but not in the controlled manner required for speed adjustment. An isolation valve is typically a simple on/off valve used to shut off the air supply for maintenance or safety, without directly influencing the speed of the actuator. Therefore, the flow-controlled valve is the best choice for regulating actuator speed in a pneumatic system.