Thermocouple Ceramic Tube
Thermocouple Ceramic Inner Insulating Tube
Thermocouple Ceramic Tube
1. Brief
Thermocouple ceramic tubes are ceramic tubular components used in thermocouple temperature measurement systems, mainly including two product types: protection tubes (outer tubes) and inner insulating tubes (inner cores). Protection tubes protect the thermocouple sensing element from high temperatures, corrosion, and mechanical damage. Structurally, they include semi-open tubes (closed at one end and open at the other) and full-open tubes (open at both ends). Inner insulating tubes isolate the positive and negative thermocouple wires to prevent short circuits, commonly featuring double-hole, four-hole, or other multi-hole structures. Both types are made from high-purity ceramic materials (such as 95% alumina, 99% alumina, steatite, etc.) through high-temperature sintering, offering excellent high-temperature resistance, electrical insulation, and chemical stability.
2. Features
Outstanding High-Temperature Resistance
Excellent Electrical Insulation
Strong Chemical Stability
High Mechanical Strength
Multi-Hole Design (Inner Insulating Tubes)
3. Applications
Industrial High-Temperature Measurement
Energy and Power Equipment
Laboratory and Research Equipment
Temperature Sensor Manufacturing




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