Wika TC12-M Manuel d'utilisateur télécharger pdf (Page 15)

4. Design and function

14083458.01 09/2013 GB/D

WIKA operating instructions models TR12, TC12 (Ex i) 15

4.3 Neck tube versions

4.4 Housing and connection heads

The designs of the housing and connection heads are given in the respective data sheet.

Legend:



Neck tube



Thread to the thermowell



Measuring insert



Thread to the connection head

A(U

) Immersion length

(tapered thread)

A(L

) Insertion length

(parallel thread)

NL Nominal length

N(M

) Neck length

tapered

thread

parallel

thread

14013854.02

parallel

thread

tapered

thread

fabricated neck tube

(neck tube welded)

“nipple-union-nipple”

neck tube

tapered

thread

parallel thread with

counter nut

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Wika TC12-M Manuel d'utilisateur Page 15