WIKA TW61 Mode D'emploi page 12

4. Design and function
DIN 11866 series A or metric
Nominal Nominal
width of pressure
tube in bar
EN
OD PN
10 25
15 25
20 25
25 25
32 25
40 25
50 25
65 16
80 16
100 12.5
DIN 11866 series B or ISO tubes
Nominal Nominal
width of pressure
tube in bar
DN (OD) PN
8 (13.5) 25
10 (17.2) 25
15 (21.3) 25
20 (26.9) 25
25 (33.7) 25
32 (42.4) 25
40 (48.3) 25
50 (60.3) 25
65 (76.1) 16
16
80 (88.9)
3) Maximum operating temperature 150 °C
4) All thermowells of this model series which are exposed to internal pressure and have a nominal diameter (DN) of
> 25 mm are manufactured and tested in accordance with module H of the pressure equipment directive.
12
Outer Tube wall
diameter thickness
of pipe
Ø D s
3) 4)
13 1.5
19 1.5
23 1.5
29 1.5
35 1.5
41 1.5
53 1.5
70 2.0
85 2.0
104 2.0
Outer Tube wall
diameter thickness
of pipe
Ø D s
3) 4)
13.5 1.6
17.2 1.6
21.3 1.6
26.9 1.6
33.7 2.0
42.4 2.0
48.3 2.0
60.3 2.0
76.1 2.0
88.9 2.3
Tube Thermowell
length insertion
length
TL L U
1 1
35 55 14
35 55 18
40 63 18
50 77 30
55 87 30
60 97 30
80 126 30
105 165 45
130 201 45
155 241 45
Tube Thermowell
length insertion
length
TL L U
1 1
32 55 14
34 55 16
36 58 18
55 81 30
60 91 30
65 102 30
65 108 30
90 145 45
110 173 45
130 203 45
WIKA operating instructions thermowell, model TW61
Neck tube
length
TR21-B TR22-B
M M
43 121
39 117
39 117
27 105
27 105
27 105
27 105
12 90
12 90
12 90
Neck tube
length
TR21-B TR22-B
M M
43 121
41 119
39 117
27 105
27 105
27 105
27 105
12 90
12 90
12 90