Excellent manufacturers of R-type thermocouples
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In our company, a project used an R-type thermocouple. It took almost a year before the thermocouple became corroded and damaged; after consulting with a foreign design company, another one was installed, but it broke again after not much time. I would like to ask if there are any good R-type thermocouples available in my country. . . Our process conditions are as follows. The temperature inside the combustion furnace is measured; it operates normally at 1250 degrees Celsius, and corrosive gases such as HF are produced as a result of combustion there. Are there any other solutions you could recommend? . . Thank you.
Find a thermocouple manufacturer and see what type of protective tube can resist HF corrosion. Estimating at this temperature is rather troublesome.
At such high temperatures, the medium becomes corrosive; therefore, it is advisable to use a protective sleeve for the thermocouple. This sleeve should be made of an appropriate alloy, and its degree of corrosion damage should be checked in order to determine the appropriate interval for replacing it regularly. This approach helps to extend the lifespan of the thermocouple.
HF is a very nasty substance with strong corrosiveness; at low temperatures, titanium alloys and Hastelloy are fine, but stainless steel definitely won’t work! With such high temperatures, it’s unclear whether those materials can resist corrosion
In fact, platinum-rhodium thermocouples can handle temperatures ranging from 0 to 1600 degrees without any problem. The key lies in the material of the protective tube surrounding the thermocouple; GH3039 can be used for this purpose. If you need further assistance, please contact Mr. Xu at 4008813579