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9. Specifications
9.2 Dimensions in mm [in]
Flow-through housing
G 3/8 thread
for assembly with model TR21-B
G 3/8
TL
DIN 11866 row A or metric
Nominal
Nom-
width of
inal
pipe
pres-
sure in
bar
1) 2)
DN
PS
10
25
15
25
20
25
25
25
32
25
40
25
50
25
65
16
80
16
100
12.5
1) Maximum operating temperature 150 °C [302 °F]
2) All protection tubes of this model series that are internally pressurised, with a nominal diameter (DN) > 25 mm [0.98 in],
are manufactured and tested to module H of the Pressure Equipment Directive.
WIKA operating instructions protection tube, model TW61
⌀
9
[0.35]
⌀
4,8
[0.189]
11612037.01
Outer
Pipe
diameter of
sched-
pipe
ule
Ø D
s
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
M24 connection
for assembly with model TR22-B
M24 x 1.5
⌀
⌀
4,8
[0.189]
TL
Pipe
Protec-
length
tion tube
insertion
length
TL
U1
70
6
70
9
80
11
100
18
110
18
120
18
160
30
210
30
260
45
310
45
9
[0.35]
11528266.03
Neck tube length
TR21-B TR22-B
M
M
51
129
48
126
46
124
39
117
39
117
39
117
27
105
27
105
12
90
12
90
19
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