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What is this component of the pneumatic door used for?

2018-09-18View Original

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As shown in the picture, I would like to ask fellow sailors: what is this inside the red box? What is it for?
Reply #22018-09-18
Red is the solenoid valve, green is the solenoid coil; the solenoid valve is used to switch the air path
Reply #32018-09-18
Green represents electronically controlled solenoid valves, while red represents pneumatically controlled valves
Reply #42018-09-18
I think the green one is just a solenoid valve. They also look very similar. And the red one is the quick exhaust valve. Actually, it still works whether it’s there or not; it’s just slower when expelling air. This type of valve generally allows fast intake of air and rapid exhaust. It belongs to the quick-cut valve.
Reply #52018-09-19
I think the green one is just a solenoid valve. They also look very similar. And the red one is the quick exhaust valve. Actually, it still works whether it’s there or not; it’s just slower when expelling air. This type of valve generally allows fast intake of air and rapid exhaust. It belongs to the quick-cut valve. ! ! !
Reply #62018-09-19
Red is the directional control valve, green is the solenoid valve (ASCO551/531)
Reply #72018-09-19
The red solenoid valve controls the green directional valve to release the air source pressure
Reply #82018-09-20
What about the wiring of the solenoid valve? Whether it’s 24 or 220V, does it need a cable?
Reply #92018-09-20
Oh, upon closer inspection, there are wire ducts, just like those on the valve position switches……

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