2. Show how a 5/2 valve can control a double acting cylinder. The signals to actuate the 5/2 valve should come from two 3/2 push button spring return valves.
3. Draw a circuit which will outstroke a single acting cylinder if a microswitch is pressed or a push button on a 3/2 valve is pressed
4/ Calculate the outstroke and instroke force of a cylinder of diameter 50mm and a rod diameter of 3mm. The air pressure is 0.3 N/mm2
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