Functional Description - bar agturn PKT Series Operating Manual

3
1
3
Fig. 3-5 bar-agturn GD/GS-300 overview of components (left: top view, right: bottom view)
Legend
1. Position indicator and interface to
the end position feedback as well as
position controllers according to VDI/
VDE 3845 (Namur)
2. Pneumatic interface connection of the
actuator according to VDI/VDE 3845
(Namur)
3. Ring nut from GD/GS-160

3.3.2 Functional description

The pneumatic rotary actuator agturn is
used for the automatic actuation of industri-
al valves continuously moving between the
end positions.
The rotary actuator is actuated exclusively
with compressed air or other suitable con-
trol media via control valves. The swivel an-
gle range is 90° and can be set as standard
in both end positions (0° and 90°) from +
5° to -5°.
The pneumatic rotary actuator is delivered
as required in a double- and single-acting
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6
5
4
2
4.
5.
6.
7.
function (with safety springs which return
the rotary actuator to the basic position).
The respective valve position is indexed
via the standard optical position indicator
(see Fig. 3-10 and Fig. 3-11 ). The end posi-
tion feedback device can be ordered as an
accessory.
The sizes GD-032 till 40 are designed only
as double-acting devices.
7
Pneumatic interface connection of the
actuator according to VDI/VDE 3845
(Namur)
Adjusting screws
Lock nuts of the adjusting screws
Valve interface according to
EN ISO 5211
PKT-GD/GS-IM-DE-B-EN-09-19 Rev.0