Samson 2488/5 Series, Монтаж и эксплуатация

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EB 3135-1 EN 35
Start-up and operation
Table 6: K
VS
coefficients and flow rates
Valve size
DN 15 DN 20
DN 25 DN 32 DN 40
1)
DN 50
1)
K
VS
coefficient
0.4 1 2.5 4 6.3
8 12.5 16/20
3)
16/25
3)
Set point range in m³/h
with a differential pressure
at the restriction ∆p
restriction
of 0.2 bar
–
0.6 to
1.3
2)
0.8 to
2.3
2)
0.8 to
3.5 2)
2 to
5.8 2)
3 to
9.1 2)
4 to
14.1 2)
0.03 to
0.2
0.1 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)
Version with flanged valve body
2)
An increase in noise level can be expected when the
specified flow rates are exceeded.
3)
K
VS
coefficient with flanged valve body
4)
5 m³/h with a differential pressure at the
restriction (∆p
restriction
) of 0.3 bar (special version)
0.01 0.05 0.1 0.5 1 5
0
2
1
3
4
DN 15
V
m³/h 0.02 0.03 0.2 0.3 2 3 4
1.75
5
4
3
3.5
5.5
6.5
4.5
2.5
2
1
0
7
6
K
VS
0.4 K
VS
2.5 K
VS
4
DN 25,
K
VS
8
DN 25,
K
VS
8*
DN 20,
K
VS
6.3
K
VS
1
Turns of
adjustment screw
Travel in mm
Fig. 6: Flow rate diagram for DN 15 to 25
·
Differential pressure at the
restriction ∆ p
restriction
= 0.2 bar
*
)
With ∆p
restriction
= 0.3 bar