Help: What is the purpose of the parallel air circuit for the pneumatic control valve in the image?
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The valve is a three-way valve, controlled by a switch. I can understand the operating principle without pipeline 2; I’m not clear about what the purpose of having this air pipeline connected in parallel with another pipeline is
Looking at it myself, this approach isn’t working at all
It should be a safety protection or control function; the image isn’t visible in its entirety, so a comprehensive assessment is needed
It appears to be a double-acting cylinder used to control the direction of air intake; in other words, it is employed for switching valves to route air through different paths.