GF PA11 - Intended Use

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Operation of these actuators is prohibited until confor-
mity of the entire system into which the valve and the
actuator have been installed is established according
to the EC Directives listed below.
98/37 EG EC Machine Guideline
Modifications to the actuator which have an effect on
the technical data given in this instruction manual and
its intended use, i.e. significantly alter the actuator,
render this manufacturer‘s declaration null and void.
Warning
3. Intended Use
The descriptions and instructions in the following apply
to the pneumatic actuators:
Type PA11 Pneumatic part-turn valve actuator
DA/FC/FO
Type PA21 Pneumatic part-turn valve actuator
DA/FC/FO
When built into GF valves and connected to a system
control, the purpose of these actuators is to
• actuateballvalveswithacontrolpressure
of 2.8 to 7 bar and up to a driv ing torque of
20 Nm, and
• dependingonthetypeofpneumaticactuator,double
acting (type designation DA) or single acting with
spring for fail-safe to CLOSE (type designation FC) or
single acting for fail-safe to OPEN (type designation
FO),