WIKA TW61 Mode D'emploi page 6

2. Design and function
For model TR22-B resistance thermometer
EN
2) In the event of replacement, select a resistance thermometer measuring insert model TR11-A.
The corresponding sensor length, l
Insertion length U
DIN 11866 row A or metric
Nominal Nominal
width of pressure
pipe in bar
OD PN
10 25
15 25
20 25
25 25
32 25
25
40
50 25
65 16
80 16
100 12.5
3) Maximum operating temperature 150 °C
4) All thermowells of this series that are internally pressurised, with a nominal diameter (DN) > 25 mm, are
manufactured and tested to module H of the pressure equipment directive.
6
, is calculated as follows:
5
+ neck tube length M (85 mm) + 5 mm pre-load + 10 mm head dimension
1
Outer
diameter
of pipe
Ø D
3) 4)
13
19
23
29
35
41
53
70
85
104
Pipe Pipe
schedule length
s TL
1.5 70
1.5 70
1.5 80
1.5 100
1.5 110
1.5 120
1.5 160
2.0 210
2.0 260
2.0 310
WIKA operating instructions thermowell, model TW61
Thermowell Neck tube
insertion length
length
TR21-B TR22-B
U M
1
6 51
9 48
11 46
18 39
18 39
18 39
30 27
30 27
45 12
45 12
M
129
126
124
117
117
117
105
105
90
90