EB 3131 EN
29
Mounting and start-up
Table 6:
Flow rate set point range for water in m³/h
Valve size DN
15
20
25
32
40
1)
50
1)
K
VS
coefficient
0.4
1
2.5
4
6.3
8
12.5
16/20
2)
20/25
2)
Set point range in
m³/h with a diff.
press. at restriction
∆p
restriction
of
0.2 bar
–
0.6 to
1.3
3)
0.8 to
2.3
3)
0.8 to
3.5
3)
2 to
5.8
3)
3 to
9.1
3)
4 to
14.1
3)
0.01 to
0.2
0.12 to
0.64
0.2 to
1.2
0.6 to
2.5
0.8 to
3.6
0.8 to
4.2
4)
2 to 10
3 to
12.5
4 to 15
1)
Also as version with flanged valve body
2)
K
VS
coefficient with flanged valve body
3)
An increase in noise level can be expected when the specified flow rates are exceeded.
4)
5 m³/h with ∆p
restriction
= 0.3 bar (special version)
1
2
3
4
5
6
7
8
9
10
11
12
0.01
0.02 0.03 0.05
0.1
0.2 0.3
0.5
1
2
3 4 5 6 7 8 910 15
25
32 40
0.4
1
2.5
V
DN 15
25*
20
50
4
•
Tur
ns of t
he set point scr
ew (17) or scale
divisions
Flow rate in m³/h
__
* With ∆p
restriction
= 0.3 bar
Fig. 8:
Set point adjustment for flow rate (guide) · Differential pressure across the restriction
Δ
p
restriction
= 0.2 bar
