Design and function – WIKA TW61 User Manual
Page 11
WIKA operating instructions thermowell, model TW61
11593963.03 03/2014 GB/D/F/E
11
GB
4.3 Scope of delivery
Cross-check the scope of delivery with the delivery note.
4. Design and function
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube length
TR21-B TR22-B
OD
PN
1) 2)
Ø D
s
TL
L
1
U
1
M
M
13.5
25
13.5
1.6
32
55
14
43
121
17.2
25
17.2
1.6
34
55
16
41
119
21.3
25
21.3
1.6
36
58
18
39
117
26.9
25
26.9
1.6
55
81
30
27
105
33.7
25
33.7
2.0
60
91
30
27
105
42.4
25
42.4
2.0
65
102
30
27
105
48.3
25
48.3
2.0
65
108
30
27
105
60.3
25
60.3
2.0
90
145
45
12
90
76.1
16
76.1
2.0
110
173
45
12
90
88.9
16
88.9
2.3
130
203
45
12
90
ISO tubes or DIN 11866 series B
Metric or DIN 11866 series A
ASME BPE or DIN 11866 series C
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube length
TR21-B TR22-B
OD
PN
1) 2)
Ø D
s
TL
L
1
U
1
M
M
10
25
13
1.5
35
55
14
43
121
15
25
19
1.5
35
55
18
39
117
20
25
23
1.5
40
63
18
39
117
25
25
29
1.5
50
77
30
27
105
32
25
35
1.5
55
87
30
27
105
40
25
41
1.5
60
97
30
27
105
50
25
53
1.5
80
126
30
27
105
65
16
70
2.0
105
165
45
12
90
80
16
85
2.0
130
201
45
12
90
100
12.5
104
2.0
155
241
45
12
90
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube length
TR21-B TR22-B
OD
PN
1) 2)
Ø D
s
TL
L
1
U
1
M
M
½"
13.8
12.7
1.65
47.6 71
14
43
121
¾"
13.8
19.05
1.65
50.8 71
18
39
117
1"
13.8
25.4
1.65
54.0 79
18
39
117
1 ½"
13.8
38.1
1.65
60.3 94
30
27
105
2"
13.8
50.8
1.65
73.0 118
30
27
105
2 ½"
13.8
63.5
1.65
79.4 134
45
12
90
3"
13.8
76.2
1.65
85.7 150
45
12
90
4"
13.8
101.6
2.11
104.8 190
45
12
90
1) Maximum operating temperature 150 °C
2) 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 97/23/EC.