The ZSXF Signal Valve is a type of valve equipped with an electric signal actuator. Upon applying 24V voltage, the valve closes to 1/4 of its full open position, at which point the signal of the valve being closed is transmitted to the control center. It is the optimal matching product for fire automatic sprinkler extinguishing systems and is also widely used in other scenarios where it's crucial to keep valves open and prevent accidental closure.