... grill,fryer,gas oven, patio heaters ect flameout universal thermocouplesProduct use: for gas cookers, gas oven, outdoor heaters, volumetric gas water heaters and ... solenoid valve and the incentive effect, in which, the gas absorption, when the flame, thermocouple rapidly lose potential, ... under the action of compression spring and gas path, and safety protection. Universal thermocouple JWT-KP-20