1. Two double acting pneumatic cylinders (A, B) in a process industry should extend together at the same time to open two different valves. On the return stroke both cylinder rods return at the same time. The starting is by a detent switch. Both the cylinders are of the same size with the same stroke length. In terms of notation, the cycle is required to go on till the detent start-up switch is pressed again. Draw the electro pneumatic circuit neatly. Briefly explain its operation. |A+| [B +J A LS, В Y Y Y Y

1. Two double acting pneumatic cylinders (A, B) in a process industry should extend together at the same time to open two different valves. On the return stroke both cylinder rods return at the same time. The starting is by a detent switch. Both the cylinders are of the same size with the same stroke length. In terms of notation, the cycle is required to go on till the detent start-up switch is pressed again. Draw the electro pneumatic circuit neatly. Briefly explain its operation. |A+| [B +J A LS, В Y Y Y Y

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter47: High-pressure, Low-pressure, And Absorption Chilled-water Systems

Section: Chapter Questions

Problem 4RQ: Blocked suction cylinder unloading is accomplished by A. keeping the suction valve closed. B....

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