Thermocouple protection tube is a heat-resistant tube designed to shield thermocouples from adverse conditions such as high temperatures, chemical corrosion, and mechanical impacts.
Thermocouple protection tubes are typically made from materials like silicon nitride, alumina, or stainless steel, each offering unique properties that make them suitable for different applications.
The choice of material for the thermocouple protection tube depends on the specific conditions of the application. For instance, in aluminum smelting furnaces, where temperatures are extremely high and there is a risk of chemical corrosion, thermocouple protection tubes made from refractory materials like alumina are commonly used.