Data Sheet for Product

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Siemens 2-port and 3-port zone valves, PN16 A6V10421629_en--_e
Smart Infrastructure 2021-11-29
Equipment combinations
Valves
Motoric actuators
Thermal actuators
SUA21/3
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
1)
200
-
-
-
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.
p
s
= Maximum permissible differential pressure at which the motorized valve will close securely
against the pressure (close off pressure)
1)
p
max
(AB-B) is 50 kPa for VXI46.25T/2
Actuator
Operating
voltage
Positioning
Positioning
force
Datasheet
signal
time
SUA21/3
AC 230 V
3-wire on/off
(SPST
1)
)
10 s
170 N
A6V10446174
SSA31.04
2)
AC 230 V
3-position or
SPDT
43 s
160 N
N4860
SFA21/18
AC 230 V
2-position
10 s
200 N
N4863
SFA71/18
AC 24 V
STA23..
AC 230 V
2-position
210 s
100 N
N4884
STA73..
AC 24 V
2-position
270 s
100 N
N4884
STA63..
AC 24 V
DC 0…10 V
270 s
100 N
N4884
1)
SPST = single pole, single throw
2)
SSA31.04 could not be used with VVI46.25T/2
4832Z01
Technical design / mechanical design
• Disc throttling element
• Seat ring embedded in through-port
• Seat machined into through-port and bypass
• Reservoir for continuous lubrication of sealing rings
• Return spring (to open position)
Actuator overview