Flow Control and Logic Valves

Flow control and logic valves are used within pneumatic systems to manipulate air signals to control other pneumatic devices, for example, the speed and operation of a pneumatic cylinder.

Quick-release couplings enable safe, rapid connection and disconnection of compressed air; they are self-sealing, and the compressed-air seal automatically closes when the collar is disconnected.

Quick exhaust valves expel compressed air into the atmosphere; this is necessary where restricting air through pneumatic valves and tubing would otherwise cause equipment to underperform.

Directional flow control valves regulate the speed of pneumatic cylinders; they can control flow in a single direction or bidirectionally.

Logic valves create sequences; for example, OR logic valves allow the connection of two independent input signals to one device. AND logic valves output only when two simultaneous pressure signals are present.

Blocking valves are mounted directly on pneumatic cylinders; they allow the cylinder to operate only when a control signal is present. When the control signal is removed, the default position either allows flow in one direction or is fully closed, preventing the cylinder from functioning.