16
CLOSE
OPEN
OPEN
CLOSE
OPEN
Edition: 2022-06 Original document - Mi-503 EN
3.4 Air pipes connection
The following connection descriptions refer to the following function: Connection
pressurisation “CLOSE” has a rotary motion clockwise as a consequence.
Attention!
The air supply shall be dry and clean instrument air acc. to ISO 8573-1. The pressure must be
constant at 4 - 8 bar (0.4 - 0.8 MPa).
The maximum supply air pressure shall not exceed the stated maximum value of the positioner.
Fig.3-5 Pneumatic actuator type A with two cylinders and schematic drawing of the to-connect air pipes
(double acting - A-DA)
Fig.3-6 Pneumatic actuator type A with two cylinders and schematic drawing of the to-connect air pipes
(single acting - spring to open A-SO). The ports ”2 / open” are equipped with silencers
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