The SY9120-4YO-02F-Q Electromagnetic Valve, manufactured by SMC, is a 5/2 monostable, G 1/4 type, with a temperature range of -10÷50°C. It is a device that controls the flow of liquid, gas, and/or vapor through a pipeline. It generally operates with a wiring connection to an external signal source, and when it receives a signal, it will automatically open or close the valve in order to regulate the flow. This can be used in various hydraulic or pneumatic systems, such as controlling pressure, flow rate, temperature, or direction of liquid or gas flow. This particular Electromagnetic Valve has a long service life, due to its corrosion-resistant materials, and is extremely reliable and accurate in operation.