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1.5 Warranty
The scope and period of warranty is stated in the manufacturer’s “General Terms of Delivery“. The latest
valid issue, at the time of delivery, is decisive.
Amongst others no liability shall be accepted for damages to the actuators arising due to one or more of the
reasons stated below:
• Ignorance or non-observance of this operating manual.
• Insufficiently qualified installation, operating and / or maintenance personnel.
• Natural wear.
• Faulty or negligent treatment of the drives.
• Chemical, electrochemical and / or electrical influences.
Furthermore warranty and manufacturer’s liability is excluded for:
• Non-observance of the maintenance of industrial health and safety standards, accident prevention
regulations, EC and / or other safety regulations.
• Modifications or changes of the actuator that were executed improperly or without manufacturer’s prior
consent.
• Faulty installation, incorrect commissioning and improper operation.
• Inappropriate or improper application, in case of improper use as well as in case of other than the agreed
conditions of use.
The risk in case of a violation of the above restrictions shall be borne, in case of personal or material
damage, exclusively by operator!
2 Transport, storage and handling
During transport and intermediate storage the following points should be observed:
• Until installation, the actuator should be stored in a dry place.
• Temperature for transport and storage should be between –30°C and +80°C.
• The actuator must be protected against external forces (impacts, shocks, vibrations etc.).
• Damage to the corrosion protection (paint, oiled surfaces etc.) must be repaired immediately.
• Intermediate storage for more than 6 months must be avoided.
• If the actuator is already mounted onto a valve please also observe the conditions for transport, storage
and handling of the valve
Please ensure that there is sufficient clearance above the installation location for dismantling and installation.
(See also chapter 3.3)
If the actuator is mounted on a valve, the chain hoists used for fitting the assembly group are to be attached
to the valve. In this process, the construction unit must be secured against rotating or be supported, so that
personal and material damage is avoided.
3 Description, technical data
3.1 Area of application
The pneumatic control actuators are directly mounted to actuate control valves. They are especially suited
for application in control systems of the chemical industry. They achieve high control forces for brief control
times. Also, a safety position in case of control power failure is ensured through the springs.
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