Wika TR12-M Manuel d'utilisateur télécharger pdf (Page 15)

4. Design and function

11419904.02 09/2013 GB/D

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

4.5 Tightening torques

Connection head, selectable (example)

thread

Tightening torques in Nm

Connection head material

Aluminium Stainless steel

1/2 NPT 32 35

3/4 NPT 36 40

M20 x 1.5, with counter nut

23 25

M24 x 1.5, with counter nut

27 30

1) only for versions with non-divisible neck tube

Tightening torques between connection head and neck tube

Tightening torques for connection to thermowell

Tightening torques for connection to neck tube

thread Tightening torques in Nm

R 1/2

50 ... 60

1) only for versions with “nipple-union-nipple” neck tube

thread

Tightening torques in Nm

1/2 NPT 35

3/4 NPT 40

G 1/2 B 35

G 3/4 B 40

M14 x 1.5 25 ... 30

M18 x 1.5 35

M20 x 1.5 35 ... 40

M27 x 2 40 ... 45

■

Only ever screw in, or unscrew, the instrument via the spanner ats and to the prescribed

torque using an appropriate tool.

■

The correct torque depends on the dimensions of the connection thread and the gasket

used (form/material).

■

When screwing in or unscrewing the instrument, do not use the connection head as

contact surface.

■

When screwing in the instrument, please observe that the threads are not skewed.

4.6 Scope of delivery

Cross-check scope of delivery with delivery note.

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 59 60

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Wika TR12-M Manuel d'utilisateur Page 15

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