Supporting the use of the composition of the gas solenoid valve with thermocouple flame safety protection device.
Thermocouple is a way to provide micro-power sensor, the solenoid valve is a control element, when the tip of the thermocouple is heated by the flame, between its cold end and the hot end of the thermoelectric power generation due to the difference in temperature, thus forming a closed loop current, solenoid valve in the joint action of external forces and magnetic excitation, in the pull-state, gas flow, when the flame is extinguished, thermocouple rapidly losing potential, lose suction solenoid valve is compressed under action of the spring reset, shut off the air path, thereby starting to secure protection.
Scope: natural gas, liquefied petroleum gas.