Household safety products: dn-15 series gas emergency cut-off solenoid valve is the safety emergency cut-off device of gas pipeline. It can be connected with the gas leakage alarm system or with the fire control and other intelligent alarm control terminal modules, so as to realize the on-site or remote automatic / manual emergency cut-off of gas source and ensure the safety of gas use. When harmful strong vibration occurs, the valve will close automatically. The valve shall be opened manually after manual intervention to meet the safety management specifications and the characteristics of accident handling.