Type KL 123
Flow sight glass fitting for welding to pipe ends or for connection to
flanges according to DIN 2633. For observing flows and fill levels in pipelines.
DIN 2576 Flanges
Mounting dimensions
glass
View
Bolts
NW
⌀ D
⌀ k
Ø ID
Ø ID
L
A
⌀ G
PN6 E
PN10 E
PN16 E
⌀ O
Quantity
Size
15
95
65
21.3
18.1
80
200
63
8
10
10
45
4
M10
20
105
75
26.9
23.7
90
200
63
8
10
10
45
4
M10
25
115
85
33.7
29.7
100
230
80
10
10
12
60
4
M12
32
140
100
42.4
38.4
110
230
80
10
10
12
60
4
M12
40
150
110
48.3
44.3
120
230
80
10
10
12
60
4
M12
50
165
125
60.3
55.1
130
240
100
10
12
15
80
4
M12
65
185
145
76.1
70.9
150
290
100
10
12
15
80
4
M12
80
200
160
88.9
83.7
170
310
125
15
15
20
100
4
M12
100
220
180
114.3
107.9
230
350
150
15
20
25
125
8
M12
125
250
210
139.7
133.3
260
400
175
20
20
25
150
8
M12
150
285
240
168.3
161.9
310
480
200
20
25
30
170
8
M16
200
340
295
219.1
212.7
370
600
250
25
30
-
225
8
M16

max. 40 bar(g)

heat-resistant up to 400 °C

for liquid media

for gaseous media

Overall lengths 140–1000 mm

Custom-made products possible

>50 sealing materials

Accessories available
Technical data:

Operating pressure
6 / 10 / 16 bar Higher pressures on request
Body
1.4404 / 1.4571 / 1.4435 On request APZ DIN EN 10204-3.1
ISO connection pipes
1.4404 / 1.4571 / 1.4435
Cover flanges
1.4301
Bolts
DIN 912 A2-70
Sight glass discs
Borosilicate glass according to DIN 7080 up to 243°C
Gaskets (FDA-compliant):
EPDM, Reinz AFM 34, PTFE Others on request
Versions:
Variant with blind hole
for welding in

Variant with radius
for welding on

Both variants combinable with
continuous drainage slope

01
Decades of experience in plant engineering
02
Precision “Made in Germany”
03
Tailor-made special solutions
04
Reliable under pressure and temperature
05
Compatibility with common standards and norms
06
Fast availability and short delivery times









