![Samson 5821 Manual Download Page 2](http://html2.mh-extra.com/html/samson/5821/5821_manual_4620204002.webp)
NOTE
The Type 5822-30 Actuator and Type 5822-
31 Actuator require an external active spring
force of 140 N across the entire travel in
operating direction IN "actuator stem re-
tracts". These actuators can only be com-
bined with valves which are equipped with a
corresponding valve spring, e.g., Type 3213
Control Valve or Type 3214 Control Valve.
1.2 Principle of operation
The actuator unit is equipped with a spring
clutch which disengages the motor in the ap-
propriate final positions (torque dependently)
via two limit switches.
Type 5821 Actuator
(Figs. 2 and 3)
In these versions, the motor of the actuator is
connected to the plug stem of the control
valve in a form-fit manner via the gear and
connecting rod. In force-locking design, a
tight connection is established by means of a
union nut of the actuator. The plug stem is
reset by the springs built in the valve.
Manual adjustment on the handwheel (3) is
only supported when the release button (2) is
simultaneously pressed. This sequence disen-
1.1 Versions
⋅
Technical data
Actuator
Form-fit
Type
5821
-1
-2
-3
5822
-10
-11
-20
-21
-30
-31
-40
-41
Force-locking
-5
-6
-50
-60
-70
Fail-safe action
Without
With
Operating direction
—
OUT
IN
OUT
IN
OUT
IN
OUT
IN
Rated travel
mm
7.5
15
7.5
7.5
15
7.5
7.5
Transit time for rated travel
s
90
90
40
90
90
90
40
Transit time upon failure
s
—
8
8
8
5
Nominal thrust
N 600
300
300
320
130
1
)
1
)
Nominal closing thrust
of the reset spring
N
280
170
420
1
) 170
170
Color of reset spring
(form-fit version)
Yellow
Grey
Red
Grey
Grey
Electrical connection
24, 110 or 230 V, 50 up to 60 Hz
3
)
Power consumption
Motor of actuator: 4 VA
Electromagnet: 5 VA
Permissible ambient temperature:
Permissible storage temperature:
Permissible temperature on the connecting sleeve:
0 to + 50 °C
–20 to + 70 °C
0 to +110 °C
Degree of protection
IP 42
Weigth
(approx. kg)
1.3
1.5
Additional electrical equipment
Limit switches
2x direction dependent
Permissible load
a.c. voltage: 24 to 250 V, 3 A
d.c. voltage: 24 V, 3 A
Potentiometer
0 to 1000
Ω
(approx. 870
Ω
at rated travel), permissible load: 0.5 W
2
)
Electrical positioner
Only with supply 24 V~ and version with potentiometer
Control signal
4 to 20 mA, 0 to 20 mA, 0 to 10 V–
Split-range operation
4 to 12 and 12 to 20 mA, 0 to 10 and 10 to 20 mA, 0 to 5 and 5 to 10 V–
1
) Depending on the springs of the connected control valve
2
) Other values on request
3
) 60 Hz for 5822 Actuator on request
2