Burkert Type 2051 Manuel D'utilisation page 11

SystemDescription
Schematic representation of control function I
Connection 2
Fig. 4: Counterclockwise rotation
Control air on connection 2 moves the pistons in the direction of the
actuator covers. Rotation is anti-clockwise. Exhaust air via connection 4.
Type 2051
Connection 4
Connection 2
Fig. 5: Clockwise rotation
Control air on connection 4 moves the pistons inwards. Rotation is
clockwise. Exhaust air via connection 2.
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Connection 4
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