User Manual
Type summary
Type Stock number
DN Connections PN class
k
vs
A→AB
[m
3
/h]
VVI46.15/2
S55249-V106
15
Internally
threaded
Rp
16
2.15
VVI46.20/2
S55249-V107
20
3.5
VVI46.25/2
S55249-V108 25 5.0
Type Stock number
DN Connections PN class
k
vs
1)
AB A
[m
3
/h]
k
vs
1)
ABB
[m
3
/h]
VXI46.15/2
S55249-V109
15
Internally
threaded
Rp
16
2.15
1.5
VXI46.20/2
S55249-V110
20
3.5
2.5
VXI46.25/2
S55249-V111
25
5.0
3.5
VXI46.25T/2
S55249-V112
25
5.5
4.5
1)
The k
vs
values in bypass B of the 3-port valves represent only 70% of the k
vs
value in the straight-
through control path AB A. This compensates for the flow resistance of the heat exchanger or
radiator, so keeping the overall flow rate
100
as constant as possible.
k
vs
= Nominal flow rate of cold water (5…30 °C) through the fully open valve (H
100
), by a differential
pressure of 100 kPa (1 bar)
Ordering
When ordering, please specify the quantity, product name and number.
The valves and actuators are delivered in separate packaging.
The actuator SUA21/3, SSA31.04, SFA.. and STA.. must be ordered separately.
See Revision number overview on page 7.
Equipment combinations
Valves Motoric actuators Thermal actuators
SU A21 /3 SSA31.04 SFA.. STA..
∆p
max
∆p
s
∆p
max
∆p
s
∆p
max
∆p
s
∆p
max
∆p
s
[kPa]
[kPa]
[kPa]
[kPa]
[kPa]
[kPa]
[kPa]
[kPa]
VVI46.15/2…20/2
400
400
300
300
300
300
200
200
VVI46.25/2
250
250
230
230
250
250
150
150
VXI46.15/2…20/2
400
300
300
200
VXI46.25/2
250
230
250
150
VXI46.25T/2
200
N/A
N/A
200
140
∆p
max
= Maximum permissible differential pressure across the valve’s control path, valid for the entire
actuating range of the motorized valve (maximum recommended operating differential pressure)
For noiseless operation, the value of 100 kPa should not be exceeded.
Example
Product number Stock number Product name Quantity
VXI46.15/2
S55249-V109
3-port zone valve, PN16 DN15, kvs
2.15
1
Delivery
Rev. no.
2 / 8
Siemens 2-port and 3-port zone valves, PN16 A6V10421629_en--_e
Building Technologies 2018-04-17