The company's DN-50 and various size specifications series of gas emergency shut-off solenoid valves, and household gas emergency shut-off solenoid valves, are safety emergency shut-off devices for gas pipelines. They can be connected to gas leakage alarm systems or fire and other intelligent alarm control terminal modules, etc., to achieve on-site or remote automatic/manual emergency shut-off of the gas source, ensuring gas usage safety. When harmful strong vibration occurs, the valve will automatically close. Valve opening requires human intervention and manual opening to comply with safety management regulations,