Electromagnetic valveGas toaster oven elements gasoline management security magnet valvegas heater magnet unit,electromagnetic valve,gas magnetic valve, pilot burner,gas magnetic valve for fuel cooker,gas cooker, water heaters, solenoid valve. thermocouples,electromagnetic vlaves,gas defense devices1. Thermocouple and magnetic valve composegas safety protection devices, thermocouple is a transducercan provide the power, magnetic valve is a controller., 2. When thermocouple tricks is heated by fire, bloodless and heat generate thermoelectric calories due to temperature difference, to sort closed loop latest and make magneticvalve actuation,opening fuel path. 3. When the flame is out owing to unexpected reasons, thermocouple quickly lose potential, magnet valve lose suction beneath the movement of spring, so shut fuel path, and play a security defense role also sell other kinds of magnet valve, and support customization, you will need to ship me your drawings or pictures.