Samson 3374 - Technical Data

5-2 EB 8331-3 EN
Installation
Actuating shaft
Fig.5-2: Actuating shaft for manual override
(actuator with integrated yoke)
For actuators with "actuator stem extends"
fail-safe action (see nameplate), the supply
voltage must be applied to allow the actua-
tor stem be retracted. To apply the supply
voltage, proceed as described in section5.6.
3. Place the actuator with yoke onto the
valve and fasten using nut (6, width
acrossats36).
Tightening torque 100Nm
4. Whentheplugstem(5)tscloselyonto
the actuator stem (3), attach both stem
connector clamps (4) and fasten with
screws.
Note
5.2 Preparation for installation
Beforemounting,makesurethefollowing
conditions are met:
− The actuator is not damaged.
Proceed as follows:
Lay out the necessary material and tools to
have them ready during mounting.
Cover screws
Phillips screws are used to fasten the actua-
tor housing cover. Use a POZIDRIV
®
PZ2
screwdriver to undo and tighten the screws.
5.3 Mounting the actuator
5.3.1 Construction with inte-
grated yoke (formB)
Attachment
− SeriesV2001Valves(DN15to80)
− Type3260(DN65to80)
− Type3260(DN100to150,onlywith
Type3374-10)
− Type3214(DN65to100)
Î SeeFig.5-3.
1. Remove protective covers and unscrew
nut (6) from the valve.
2. Retract actuator stem (3) as described in
the'Operation'section(seeFig.5-2and
Fig.5-3).