1、Solenoid Valve: The electromagnetic valve uses the interaction of the instantaneous electromagnetic force, permanent magnetic force and spring force for pulse driven self holding valve closing and manual valve opening. 2、Auto Shut Down: The shut off valve will automatically close within 1 second, cut off the gas source, and the valve must be opened manually with manual intervention to meet the safety management specifications. 3、Remote Control: Can be connected with the gas leakage alarm system or with the fire control and other intelligent alarm control terminal modules to realize on site or remote automatic or manual emergency cut off of the gas source to ensure gas safety. 4、Extensive Uses: Widely used for automatic control of gas pipeline ball valve, gas cylinder ball valve, various connection alarms, other gas and liquid valves. 5、Great Crafting: Adopting fine forging and sealing elements, with high stability, long service life and reliable. A safe emergency cut off device for gas pipelines.