Like any valve, pneumatic valves have a control function to determine the amount of gas or compressed air that is allowed to flow through. With a pneumatic valve, the flow is controlled by a pneumatic signal.
Electric pilot-actuated valves or pneumatic valves can be used to control actuators. Electric pilot-actuated valves can be operated with 12 V, 24 V or 230 V. Common variants are, for example, 3/2- or 5/2-way valves. Pneumatic valves, on the other hand, are actuated by compressed air.
The product range of valves and valve terminals from Festo includes: