3.3
Decommissioning
Preferably close the shut-off valves starting
from the flow pipe side and then return flow
pipe side.
EB 3013 EN
13
Operation
Table 2 · Flow rate set points for water in m³
/h
Type 2423 Valve balanced by a bellows
Δ
p
set p.
Δ
p
plant
Δ
p
restr.
DN ...
15
20
25
32
40
50
65
80
100 125 150 200 250
0.2
bar
0.1
bar
0.1
bar
V
.
min 0.05 0.15 0.25 0.4
0.6
0.9
2
3.5
6.5
11
18
20
26
max 1.4
2.1
2.4
4.9
7.7 11.2
19
28
44
56
84
126 154
0.5
bar
0.3
bar
0.2
bar
V
.
max
2
3
3.5
7
11
16
28
40
63
80
120 180 220
1.0
bar
0.5
bar
0.5
bar
V
.
max
3
4.5
5.3
9.5
16
24
40
58
90
120 180 260 300
Max. perm. diff. pressure
Δ
p
25 bar
20 bar
16 bar
12bar
10 bar
Type 2423 Valve balanced by a diaphragm
Nominal size
DN
125
150
200
250
Flow rate set points in m³/h with
Δ
p
restriction
= 0.2 bar
11 to 120
18 to 180
20 to 320
26 to 350
Max. perm. diff. pressure
Δ
p
12 bar
10 bar
