Product Application: gas oven,gas heater, gas stove, gas fire pit,gas cookers,gas barbecue,etc.
Export Country: European,North America and Middle East
Product Certification: With ISO9001:2008,CE&CSA certification.
Applicable gas families: LPG/propane/butane
Gas Thermocouple Safety Protection System
Working Principle: A thermocouple consisting of two pieces of dissimilar metals joined together at one end (hot junction). When the hot junction is heated, the thermocouple produces DC voltage to the other end. It powers thermoelectric gas valves and when used is a safety feature on gas hearth products. Loss of the pilot can removes the electrical current and shuts off the gas supply to the burner.
1) Thermal potential:
When heated,the closed circuit voltage should ≥12mv and ≤15mv,open circuit voltage ≥25mv and ≤30mv
Heat potential should ≥12mv and ≤15mv when temperature ratings 416° to 760°C, cold junction to hot junction
Cooling Characteristic ≤ 1.5 mv when 1.5min if it heated for 5min and then cut off the power.
2)Ambient temperature: the top temperature is lower than 760℃ and the other parts lower than 200℃
3) Inner resistance: Accord to its type and length and the tolerance is in ±15% as is requested.
4) Length according to request of customers
Forehead & terminal according to request of customers
Thermocouple heated part must be heating on tip 3 to 5mm. pls do not put tip into flame,it will be arouse electric decline and life short.Keep radiating well for thermocouple fixed place backer and plus-minus thread. Decline the accumulative heat of fix broad and thermocouple copper coat.It is benificial to the closing valve time.