What component can act to restrict airflow in a pneumatic system?

In a pneumatic system, a restrictor is specifically designed to limit or control the flow of air through the system. By doing so, it can regulate the pressure and flow rates to ensure that the system operates efficiently and safely. The restrictor creates a deliberate constriction in the airflow, effectively reducing the volume of air passing through at any given moment. This is crucial in applications where precise control of air pressure or speed is necessary, such as in actuators or controlled air systems.

In contrast, while components like regulators and valves also manage airflow, their primary functions differ. A regulator maintains a constant pressure level, adjusting flow automatically based on demand. A valve, meanwhile, can open or close to allow or stop airflow but does not have the specific function of restricting flow to the degree or purpose of a restrictor. A compressor generates airflow but does not restrict it; rather, it increases the pressure of the air in the system.