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Protection tube for high temperature assemblies

Protection tube for high temperature assemblies ©Endress+Hauser

For processes with high process temperatures like cement production, steel treatment, incinerators

Measuring points with extremely high process temperatures require these special ceramic or metal protection tubes made from special materials. They protect from mechanical and chemical damages in the process and increases the life span of the used sensors. This leads to: Cost savings for maintenance of the measuring point, quality improvements of the products and increased plant safety. It is specially designed as replacement part for the high temperature TC thermometer TAF16 by Endress+Hauser.

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  • Benefits

    • Long lifetime by usage of innovative protection tube materials with increased wear and chemical resistance

    • Long term stable measurement due to sensor protection with non-porous materials

    • Replaceable parts

  • Field of application

    Applicable for cement production, steel treatment, incinerators and fluidized bed furnaces. Accessory for high temperature assembly TAF16.

    Process temperatures up to +1700 °C (+3092 °F).

Features and specifications



  • Measuring principle

    Fabricated Thermowell

  • Characteristic / Application

    metric style

    Fabricated from segments

    welded protection tube

    ceramic protection tube

    process connection as compression fitting

    Replacement part for TAF16

  • Head connection

    M24 x 1,5

    groove for DIN A Head

  • Maximum standard immersion length

    2.200 mm (86,61")

  • Max. immersion length on request

    4.525 mm (178,15")

  • Process connection

    compression fitting:






    adjustable Flange

  • Thermowell root diameter

    14,0 mm (0,55")

    15,0 mm (0,59")

    17,2 mm (0,68")

    18,0 mm (0,71")

    21,3 mm (0,84")

    22,0 mm (0,87")

    26,7 mm (1,05")

    28,0 mm (1,10")

  • Medium contact material

    1.4401 (316)

    1.4749 (~446)

    1.4841 (310)

    Alloy 600 (2.4816)

    Alloy 601 (2.4851)

    Incoloy 800HT (1.4959)

    Kanthal AF

    Kanthal Super



  • Tip shape


  • Temperature range

    -200...1700 °C (-328...3.092 °F)

  • Max. process pressure (static)

    1 bar (15 psi)

Documents / Manuals / Software

Accessories / Spare parts

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