Pneumatic Spool Valves

Pneumatic spool valves are used as directional controls within pneumatic circuits controlling single and double acting actuators or as part of a pneumatic logic sequence. Pneumatic logic circuits or interlocks form essential parts of the control mechanisms for many industrial processes where electrical control is either not desirable or possible. Pneumatic directional control spool valves have two positions where the method of actuation can be the same for each or different from a choice of air pilot, manual or spring. Adding a Manual Reset function to pneumatic valves allows users to enable circuit functions manually within the pneumatic control system for safety critical events.