Product Overview

4/10
Siemens Building Technologies Two-port and three-port small valves PN16, ANSI Class 250 CM1N4845E
HVAC Products 11.2001
Equipment combinations
Valve types V...45.10-0,25 to V...45.25-6,3 are operated with type SSB... actuators (see
data sheet N4891) or type SSC... actuators (see data sheet N4895) whereas valve
types V...P45.25-10, V...45.32-16 and V...P45.40-25 are only operated with type SSC...
actuators.
Actuator Operating voltage Control Run-time
Positioning
force
To k
vs
SSB31...
AC 230 V 3-position 150 s 200 N 6.3 m
3
/h
SSB61...
AC 24 V DC 0 ...10 V 75 s
SSB81...
AC 24 V 3-position 150 s
SSC31...
AC 230 V 3-position 150 s 300 N 25 m
3
/h
SSC61...
AC 24 V DC 0 ...10 V 30 s
SSC81...
AC 24 V 3-position 150 s
Sizing
Key:
∆p
v
max
(Where ∆p
v
max
is above 100 kPa,
there is an increased risk of noise
and erosion on the seat and plug.)
k
vs
-value in straight-through
control path A → AB
100 kPa 1 bar ≈ 10 mWS
1 m
3
/h 0.278 l/s water at 20 °C
∆p
max
Maximum admissible pressure
differential across the closed
valve/actuator assembly.
∆p
v
max
Maximum admissible differential
pressure across the valve under
all operating conditions
∆p
v
100
Admissible differential pressure with
fully open valve and nominal stroke
&
V
100
Maximum flow rate in l/s
The k
vs
-values in bypass B for valve types
V...45.10... to V...45.25-6.3 represent only 70 % of
the k
vs
value in the straight-through control path
A → AB (for other types 100 %). This
compensates for the flow resistance of the heat
exchanger or radiator, so keeping the overall flow
rate,
&
V
100
as constant as possible.
Example:
= Example
(1)
&
V
100
= 0.083 l/s
(2) ∆p
v
100
= 9 kPa
(3) Required k
vs
value = 1.0 m
3
/h
2.77
2.22
0.27
0.55
0.83
1.11
0.22
0.17
1.67
0.11
0.083
0.055
0.027
0.022
0.017
0.011
0.008
1 2 3 4 6 8
10 20 30 40 60
80
100 200 300 400
4
.
0
2
.
5
1
.
6
1
.
0
0
.
6
3
0
.
4
0
.
2
5
600
∆
p
v100
[kPa]
00169
1
2
V
100
[m
3
/h]
k
vs
[
m
³
/h]
A
A
B
6
.
3
∆
p
v100
[bar]
1.0
0.1 0.01
0.02
0.06 0.2
0.6
2
6
3
V
100
[l/s]
0.1
0.2
0.4
0.3
1.0
0.8
0.6
10
8
6
4
3
2
20
30
40
1
6
1
0
2
5
0.04
0.4
4
0.08
0.06
0.04
0.025
0.03
11.1
8.33
5.55
∆p
v
max