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Hydraulic and Pneumatic systems are similar in that they both use double/single acting cylinders to operate something - Be it an automatic door for pneumatics and other such trivial tasks, or JCBs with hydraulics.

Another key similarity would be the way in which they work - they both take the easiest path where available and both use 3/2 valves.

A major difference between them is the pressures involved, the output forces and the use of 4/3 (hydraulics) and 5/2 (pneumatics) to operate a double acting cylinder.

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13y ago

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