Detailed explanation of the working principle, model parameters, and internal structure of pneumatic solenoid valves
As a core component in pneumatic systems, the working principle of pneumatic solenoid valves lies in the ingenious application of electromagnetic force. When the solenoid valve is energized, the coil generates a magnetic force, attracting the iron core to move, and thus compressed air can pass through the valve core and enter the solenoid valve. Once the solenoid valve is de-energized, the magnetic force disappears immediately, and the spring action tightly closes the valve core, preventing air from passing through.
The pneumatic solenoid valve is mainly composed of an electromagnet and a valve body. The electromagnet part consists of an iron core, a coil, and a bracket for fixing the iron core. When the coil is energized, a magnetic force is generated, the iron core is attracted, and at the same time, the compressed air at the air inlet can smoothly enter the solenoid valve. After the power is cut off, the magnetic force disappears, and the spring pressure tightly closes the valve core, preventing air from passing through.
In addition, the pneumatic solenoid valve is also equipped with sealing rings and gaskets, which are designed to ensure the sealing performance between the valve core and the valve seat. These materials need to have a low coefficient of friction and excellent wear resistance to ensure that no wear or deformation occurs during long-term use.
In conclusion, pneumatic solenoid valves ingeniously control the flow direction of compressed air through electromagnetic force, and they have many advantages such as compact structure, small size, light weight, sensitive operation, and easy maintenance. It plays a crucial role in pneumatic systems and is widely used in on-off, reversing, and gas regulation etc.

| 1️⃣Specification Code | 7V: 5-way 2-position Pneumatic Solenoid Valve | |||||||||
| 2️⃣Series Code | 05:05000 Series | 1:100 Series | 2:200 Series | |||||||
| 3️⃣Electronic Control Mode | 10: Dual-position Single Electronic Control 20: Dual-position Dual-electronic Control |
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| 30C: Three-position Dual Electronic Control Center Closed Type 30E: Three-position Dual-electronically Controlled Mid-exhaust Type 30P: Three-position Dual Electronic Control Median Pressure Type |
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| 4️⃣Connection Type | Blank: Threaded Pipe J: Quick-connect Connector Pipe |
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| 5️⃣Pipe Connection Diameter | Threaded Pipe | M5:M5 | 06: PT1/8 | 08: PT1/4 | ||||||
| Quick-connect Connector Pipe | 04: Φ 4 mm | 06: Φ 6 mm / 08: Ф 8 mm | 08: Ф 8 mm / 10: Φ 10 mm | |||||||
| 6️⃣Standard Voltage | A:AC220V B:DC24V C:AC110V F:DC12V | |||||||||
| 7️⃣Terminal Wire Length | 050:0.5m 200:2.0m | |||||||||
| 8️⃣Tooth Shape Code | No Such Code | Blank: PT Tooth G: G Teeth T: NPT Teeth | ||||||||
Two people with five connections
The "two-position five-way" structure of the pneumatic solenoid valve is one of its unique designs. This structure means that the solenoid valve has two working positions and five channels, namely the air inlet, the air outlet, port P, port A, and Port B. Through ingenious arrangement and precise control, this structure enables solenoid valves to flexibly perform functions such as gas on-off, reversing, and regulation, thereby meeting the demands of various complex pneumatic systems.
Two people with five connections
The "2 positions" here refer to the switching position of the solenoid valve, that is, the solenoid valve has two states. "5-way" indicates the number of external interface channels of the solenoid valve, including the air inlet, air outlet, and possible exhaust port, totaling five channels. In the illustration, these channels are respectively marked as A, B, R, S, and T.

Two people with five connections
The "2 positions" here refer to the two states that the solenoid valve possesses during the switching process, namely, normally open and normally closed. The "5-way" indicates that this solenoid valve has five external interface channels, including one air inlet, one air outlet, and possibly two exhaust ports. These channels are clearly marked as A, B, R, S, and T, respectively, in the diagram.

Among them, P represents the total air source, while A and B are respectively connected to the cylinders. When there is no electricity, P and B, as well as A and R, are connected. Once the solenoid valve is energized, A path will be formed between P and A, and at the same time, B and S will also be connected.
When the solenoid valve is not powered on, P and B, as well as A and R, are in communication. However, when the solenoid valve is powered on, A passage will be formed between P and A, and at the same time, B and S will also be connected.
Above is a Detailed explanation of the working principle, model parameters, and internal structure of pneumatic solenoid valves. To learn more related information, visit https://www.joosungauto.com/.


