WIKA operating instructions thermowell, model TW61
11593963.06 04/2019 EN/DE/FR/ES
7
EN
DIN 11866 row B or ISO pipes
2. Design and function
DIN 11866 row C or ASME BPE
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.
Nominal
width of
pipe
Nominal
pressure
in bar
Outer
diameter
of pipe
Pipe
schedule
Pipe
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
DN (OD)
PN
3) 4)
Ø D
s
TL
U
1
M
M
8 (13.5)
25
13.5
1.6
64
6
51
129
10 (17.2)
25
17.2
1.6
68
9
48
126
15 (21.3)
25
21.3
1.6
72
11
46
124
20 (26.9)
25
26.9
1.6
110
11
46
124
25 (33.7)
25
33.7
2.0
120
18
39
117
32 (42.4)
25
42.4
2.0
130
18
39
117
40 (48.3)
25
48.3
2.0
130
18
39
117
50 (60.3)
25
60.3
2.0
180
30
27
105
65 (76.1)
16
76.1
2.0
220
30
27
105
80 (88.9)
16
88.9
2.3
260
45
12
90
Nominal
width of
pipe
Nominal
pressure
in bar
Outer
diameter
of pipe
Pipe
schedule
Pipe
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
OD
PN
3) 4)
Ø D
s
TL
U
1
M
M
½"
13.8
12.7
1.65
95.2
6
51
129
¾"
13.8
19.05
1.65
101.6
9
48
126
1"
13.8
25.4
1.65
108.0
11
46
124
1 ½"
13.8
38.1
1.65
120.6
18
39
117
2"
13.8
50.8
1.65
146.0
18
39
117
2 ½"
13.8
63.5
1.65
158.8
30
27
105
3"
13.8
76.2
1.65
171.4
30
27
105
4"
13.8
101.6
2.11
209.6
45
12
90
Содержание TW61
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