Table of Contents
Advertisement
A de-energized actuator can be moved us-
ing the manual override. Remove the front
case cover. Place a 4 mm hex wrench on the
red actuating shaft and turn it.
Turn it only counterclockwise and only up to
the point at which the torque switch in the
actuator is activated.
Once the magnet has been released, the
spring mechanism pushes the actuator stem
back to the fail-safe position.
2. To continue, proceed as described in sec-
tion 6.1.
Travel in mm
Turns of the set point adjuster/set
point screw
12
8
11
7
10
9
6
8
9
5
7
8
6
4
7
5
6
3
5
4
4
3
2
3
2
1
0
0
0
0.01
0.02 0.03
Fig. 7:
Adjustment diagram for flow rate
EB 3135-2 EN
DN 15, K
vs
0.4
0.05
0.1
0.2 0.3
Testing according to
DIN EN 14597
Various SAMSON electric actuators with
fail-safe action "actuator stem extends" are
tested by the German technical surveillance
association (TÜV) according to
DIN EN 14597 in combination with
Type 2489 Valve.
The registration number is available on re-
quest.
DN 20
...
1
2.5
4
0.5
1
2
Operation
25
32
40 50
.
V
3 4
5
10
15
m³/h
31
Advertisement
Table of Contents
