What is the purpose of a pneumatic valve?

The primary purpose of a pneumatic valve is to control the flow and direction of compressed air within a pneumatic system. These valves act as gatekeepers that direct the compressed air to different parts of the system, allowing for the precise operation of various components such as cylinders and actuators. By opening or closing, a valve can either allow air to pass through or block it, thus controlling both the flow rate and the path that the air takes. This functionality is essential for managing the movement and operations of pneumatic devices, enabling tasks like lifting, pushing, or pulling to be performed efficiently.

In contrast, regulating air temperature is not a function of pneumatic valves; instead, that responsibility might fall to thermal control systems. Measuring air pressure is the role of pressure sensors or gauges, not valves. Storing excess air is typically handled by air tanks or reservoirs rather than valves themselves. Therefore, the correct answer highlights the valve's critical role in directing and managing airflow within pneumatic applications.