Protection Tubes

Protect Temperature Sensor from Harsh Environments

Protection tubes safeguard thermocouples from contaminating atmospheres or mechanical damage. They are closed at one end of the tube and the thermocouple and connection head are assembled and mounted into the process. The material chosen for the protection tube is determined by the type of application that the the thermocouple will be exposed to. Watlow offers a variety of ceramic and metal (pipe type) protection tubes designed to insulate and protect temperature sensors from high pressure, abrasive, corrosive and other harsh environments.

Features & Benefits


Hexoloy SA® protection tube maintains strength up to 3002°F (1650°C) provides superior thermal conductivity which provides superior thermal conductivity and offers excellent thermal shock resistance

The SERIES 1100 protection tube is coated with a tough, refractory laminated coating that resists errosion from molten, aluminum, zinc and galvanizing baths and stays strong, even at high temperatures

Related Documentation


  • Catalogs

    Sensor Catalog (Section) - Accessories

    Sensor & Controller Catalog

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Quality Certificates

ISO 90012008 Certificate - Richmond

ISO 14001 2004 Certificate - Sensors

ISOIEC 17025 2005 Certificate - Sensors - 1-31-19 Richmond

ISOTS 16949 2009