2. Usage as per specification
• PSF-Q actuators are exclusively designed to be used as electric valve actuators. They are meant to be mounted on
valves in order to run their motors.
• Any other use is considered to be non-compliant and the manufacturer cannot be held liable for any damage
resulting from it.
• The actuators can only be used within the limits laid out in the data sheets, catalogues and other documents.
Otherwise, the manufacturer cannot be held liable for any resulting damage.
• Usage as per specification includes the observance of the operating, service and maintenance conditions laid
down by the manufacturer.
• Not to be regarded as usage as per specification are mounting and adjusting the actuator as well as servicing.
Special precautions have to be taken while doing this!
• The actuators may only be used, serviced and repaired by personnel that is familiar with them and informed
about potential hazards. The specific regulations for the prevention of accidents have to be observed.
• Damages caused by unauthorized modifications carried out on the actuators are excluded from the
manufacturer's liability.
3. Storage
For appropriate storage, the following instructions have to be met:
• Only store the actuators in ventilated, dry rooms.
• Store the actuators on shelves, wooden boards, etc., to protect them from soil moisture.
• Cover the actuators with plastic foil to protect them from dust and dirt.
• Protect the actuators against mechanical damage.
4. Operating conditions and installation position
• Standard actuators may be operated at ambient temperatures according to the data sheet.
• Operating modes correspond to IEC 60034-1, 8: S2 for short cycle, and S4 for control operation (actuator-specific
values see actuator-specific data sheets).
• For protection against moisture and dust, enclosure rating is IP65 (optionally IP67) according to EN 60529.
• The actuators must be installed with sufficient clearance to remove the cover (Figure 1). The mounting position is
arbitrary with the exception of "cover down" (Figure 2).
Figure 1: Mounting dimensions
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