SMC pneumatic solenoid valve knowledge

SMC pneumatic solenoid valve is a commonly used solenoid valve, has a certain application in the industrial, electronics, power, petroleum, chemical and other fields. When the SMC pneumatic solenoid valve is in use, it is necessary to master the knowledge of the working principle, function, and characteristics. The following Xiaobian will introduce the use knowledge of the SMC pneumatic solenoid valve.

A:What is the working principle of the SMC pneumatic solenoid valve?

Q: Take the direct-acting single solenoid valve as an example to illustrate the working principle of the SMC pneumatic solenoid valve: Please refer to the principle diagram of the direct-acting single solenoid valve. When the solenoid is not energized, the valve core is under the action of the spring force. The upper position, at this time can be seen from the figure, the inlet air is sealed, the outlet and the exhaust port are connected, that is, the solenoid valve is in the exhaust state; when the solenoid valve is energized, the valve core is attracted by the electromagnetic force of the electromagnet to overcome the spring force. Move down, at this time can be seen from the figure, the inlet air can lead to the exit, and the outlet and the exhaust port is not connected, that is, the solenoid valve is in the supply state; when the solenoid valve loses power, the valve core is reset by the spring force , And in the exhaust state. This is how the SMC solenoid valve changes and controls the direction of the compressed air flow by changing the position of the spool.

A:What is the role of SMC pneumatic solenoid valve?

Q: SMC solenoid valve is a direction control element, the main role is to change and control the flow direction of compressed air. For example, the two-way valve controls the on-off of the air flow, the three-way valve controls the intake and exhaust (refer to the solenoid valve schematic above), and the five-way valve mainly controls the reciprocating motion of the cylinder.

What are the characteristics of the SMC pneumatic solenoid valve?

In the vacuum, negative pressure, zero pressure can work normally, but the diameter is generally not more than 25 mm.

In the zero pressure differential or vacuum, high pressure can also be action, but the power is greater, requiring horizontal installation.

The upper limit of the fluid pressure range is high and can be installed arbitrarily (to be customized) but the fluid pressure difference must be met.