Type 5825 Actuator; Force-Locking Attachment; Form-Fit Attachment; Mounting Position - Samson 5824 Mounting And Operating Instructions

2.2 Type 5825 Actuator

2.2.1 Force-locking attachment

Fail-safe action "Actuator stem extends"
1. Unscrew front cover and place a 4 mm
Allen key on the red actuating shaft.
2. Retract the actuator stem: Turn Allen key
counterclockwise only and only up to the
final travel value which is at the point
where the torque switch is activated
(switching off the synchronous motor).
Caution!
Turning the actuator too far will destroy it.
3. Keep Allen key in place and fasten valve
and actuator together using the coupling
screw (tightening torque 20 Nm). Re-
move Allen key and carefully screw the
front cover back on.
While taking the necessary safety pre-
cautions, the actuator stem can also be
retracted electrically when a voltage
signal is applied to the terminal eL con-
nected to N.
Fail-safe action "Actuator stem retracts"
Position the actuator on the valve connection
and tighten coupling nut with a tightening
torque of 20 Nm.

2.2.2 Form-fit attachment

For fail-safe action "Actuator stem retracts"
or "Actuator stem extends", attach actuator
as described in section 2.1.2.

2.3 Mounting position

The control valve must be mounted in the
pipeline with the Type 5824/5825 Actuator
on top to achieve the stated degree of pro-
tection.

2.4 Travel indicator scale

The travel indicator scale has two opposed
scales for adaptation to different valve ver-
sions. Which scale should be used depends
on the valve version (Fig. 4)
Globe and three-way diverting valves · The
driving pin is in position 0 (delivered state)
Three-way mixing valves · Remove scale,
turn it and replace it so that the pin is posi-
tioned over the appropriate hole (6, 12 or
15) corresponding to the rated travel
(6 mm, 12 mm or 15 mm travel).
Replacement scales for older actuators are
available on request.
Driving pin
in position 0,
location of scale with globe or three-way diverting
valves (standard)
Fig. 4 · Scale for travel indication
Attachment to valve
Hole for
driving pin
with three-way
mixing valve
9
EB 5824 EN