Difference between single-acting and double-acting cylinders
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Dear experts, in my opinion, the fundamental difference between single-acting and double-acting cylinders lies in the fact that if the valve’s movement is achieved solely by instrument air, then it is a double-acting cylinder; whereas if the valve’s movement is accomplished through the combined action of instrument air and a spring, then it is a single-acting cylinder. Gurus, is my understanding correct?
More or less, that’s what it means. Double-acting switches require instrument air, while single-acting ones can be configured accordingly.
At the same torque, double-acting types have a smaller volume while single-acting types offer higher reliability