Samson 45-9 Mounting And Operating Instructions page 26

Start-up and operation
Different K coefficients are available for
VS
valve size DN 15 to provide several flow set
point ranges.
Retighten the lock nut and screw the cap
(8.6) back on after the required flow rate is
reached.
Type 45-9 Flow Regulator in special version
with external scaled cap (five scale divisions)
for adjustment of the flow rate set point
The set point can be adjusted directly using
the scaled cap (one marked scale division
Turns of the set point screw or scale
divisions
11
10
9
8
7
6
5
4
3
2
1
0.01 0.02 0.03 0.05
Fig. 8: Set point adjustment for flow rate (guide) · DN 15, 20 and 32
Differential pressure across the restriction Δp
26
One scale division <> One turn of the set point screw
DN 15 DN 15 DN 15
K 0.4 K 1 K
VS VS VS
0.1 0.2 0.3 0.5
corresponds to one turn of the set point
screw).
DN 20 DN 32
2.5 K 6.3 K 12.5
VS VS
1 2 3 4 5 6 7 8 910 15
= 0.2 bar
restriction
Fig. 7: Type 45-9
with scaled
cap for set
point
adjustment
V
m 3 /h
Flow rate
EB 3128 EN