Electromagnetic valve
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Is this solenoid valve a single-acting solenoid valve or a double-acting solenoid valve? 14 Does the solenoid valve have a holding function? Is the 12 on the diagram a solenoid valve?
Solenoid valves are not distinguished by single-acting or double-acting design; rather, the distinction lies in whether they are controlled by a single power source or two power sources. In the two pneumatic circuit diagrams, the one on top is typically used with double-acting actuators. I’m not quite sure whether the one at the bottom maintains its position. Normally, if it were to maintain that position, it should cut off the two gas supply lines directly, but in the diagram the lines supplying both sides have been emptied.
This post was last edited by Polar Wind on 2018-3-1 19:35. Thank you! Is that a dual-control solenoid valve? Are all of these also dual-control? What is the difference between the solenoid valve above and the one shown in this diagram?
This post was last edited by xxkhc on 2018-3-2 at 15:20. Based on the graphic symbols, 14 represents the coil; the rectangle below 14 indicates the pilot control mechanism for electrical operation, while the area above the rectangle denotes the manual locking control mechanism. 12 There are no control or actuation mechanisms on this side, so it should be a 2/4 way solenoid valve. Typically, a dual-coil setup has four wires, while a single coil has only two wires. The figure below shows a two-position, five-way, dual-control solenoid valve; the coil is located on the side marked 12, and the meanings of the other symbols are as explained above.
The simplest way to determine whether a solenoid valve is a dual-control solenoid valve is to check its coils; if there are two coils, then it is indeed a dual-control solenoid valve. Another way is to look at the air circuit diagram. For the Nuo Guan solenoid valve you mentioned, the air circuits for both positions have markings indicating the presence of solenoid coils, which confirms that it is a dual-control solenoid valve
Two five-way connections: the one on the left has 1 input and 4 outputs, while the one on the right has 1 input and 2 outputs. 3, 5 are exhaust. 1 is for intake air, 2 and 4 are connected to the cylinders. Of course, you can also use it as a single-acting type.
I don’t understand. . . Come and learn a trick from the guys!
It has dual control systems; the image you sent above doesn’t show that, so it’s impossible to make a comparison
The top diagram shows a two-position five-way solenoid valve. The terminal wiring box appears to be explosion-proof; the side with the exhaust pipes should have three holes, two of which are sealed off, resulting in a two-position three-way solenoid valve. The diagram in Chapter 3 depicts a two-solenoid-head two-position five-way solenoid valve, which can also be referred to as a two-electrocontrol two-position five-way solenoid valve. Nowadays, two-coil two-position five-way solenoid valves with a single solenoid head can serve as a replacement for these valves with two solenoid heads