Thermocouple protection tube material how to choose1

In the process of production, the role of the thermocouple protection tube is known to all, so how to according to the actual situation of their production, choice more economic for field needs the protection of the tube? Don't know a lot of people in the actual operation. In order to make everyone better use of the thermocouple protection tube, the next project on thermocouple protection tubes for you to choose, let everybody can choose to the thermocouple protection tube suited to their needs.

1, thermocouple protection tube material, ICr18Ni9Ti ( Applicable to K N E T thermocouple J) 。

2, carbon steel 20 ( Applicable to K N E T thermocouple J) 。

3、 Cr25Ti ( Applicable to K N E T thermocouple J) 。

4, just the quality of the jade, Applicable to S R B type thermocouple, and does not apply to flameproof) 。

5, high aluminum ( Applicable to S R B KN type thermocouple no fixed device type, is not used for explosion-proof type) 。

6, molybdenum disilicide ( Suitable for WRe325 type, and does not apply to flameproof) 。

7, silicon carbide ( Suitable for WRe325 type, and does not apply to flameproof) 。

the above which is according to the classification by the different thermocouple protection tube material, we can according to the above criteria to choose suits own thermocouple protection tube material. If you have special protection tube ( Such as chemical plant nuclear power, etc. ) , need with special instructions.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor