Controlling a Sequence of Events (.PDF Download)

The simplest way to make two or more cylinders stroke in a planned sequence is by using a single directional valve. However, when two or more cylinders are piped in parallel, the cylinder with the lowest resistance will stroke first. If this is the intent, the circuit runs smoothly without other valves. However, in most cases, loads change, so if you want cylinders to stroke in a specific order regardless of the load on each, you’ll need more than just a single directional valve...

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