Sheathed thermocouples differ from conventional thermocouples in their smaller construction and their ability to be bent. Due to this feature, sheathed thermocouples can also be used in places that are difficult to access.
In our extensive range of sheathed thermocouples, you can find a suitable version for every application.
For sheath materials, Inconel 600 or stainless steel are used preferentially. Inconel 600 (2.4816 Ni alloy) is the standard material for applications which require specific corrosion-resistant properties under exposure to high temperatures, resistant to induced stress corrosion cracking and pitting in media containing chloride. Sheathed thermocouples from Inconel 600 are resistant against halogens, chlorine, hydrogen chloride and ammonia in aqueous solutions. Sheathed thermocouples from 316 stainless steel stand out due to their good resistance against aggressive media and also against vapour and combustion gases in chemical media.
The specifications for the use of sheathed thermocouples refer to versions with direct contact with the medium.
Type R, S and B thermocouples are also available embedded in MI cable. Temperature range, accuracy classes and dimensions of these “noble” sheathed thermocouples should be clarified with your contact person.