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13 Pneumatic connection
13 Pneumatic connection
CAUTION
Flailing broken pneumatic lines.
▶ Risk of injury.
● Comply with the general safety measures when handling
compressed air.
NOTICE
Coarse dirt particles
▶ Filter strainers are installed in the pneumatic connectors
of the positioner to protect against rough dirt particles.
They can be ordered as replacement items with order
number 1435 SFI.
1. Make the connection between the pneumatic positioner
outlet 2 (single acting) or 2 and 4 (double acting) and the
pneumatic actuator control air inlet.
2. Connect the auxiliary power (air supply) to the air supply
connection 1 (max. 6 bar or 90 psi).
NOTICE
▶ In the case of valves that behave significantly differently
with regard to the necessary travel times (for example the
normally open control function, code 2) it may be neces-
sary to fit an additional supply air throttle to the supply
connection P. This enables the travel times to be set
evenly.
Connection in ac-
cordance with DIN
ISO
1219-1
Designation Size
1 Air supply connection P G1/4
3 Venting connection with silen-
cer
G1/4
V1 Exhaust air throttle for 2 -
V2 Exhaust air throttle for 4* -
V3 Check valve -
2 Working connection for pro-
cess valve
-
4 Working connection for pro-
cess valve*
-
* Only with double acting action (code 3)
13.1 Connection diagram for linear valves
13.1.1 Connection diagram for NC valves (Normally Closed)
● Fit tubing from 2 to the lower connection of the process
valve.
13.1.2 Connection diagram for NO valves (Normally Open)
● Fit tubing from 2 to the upper connection of the process
valve.
ð The throttle only needs to be assembled if it is in-
cluded.
13.1.3 Connection diagram for double acting valves
● Fit tubing from 2 to the lower connection of the process
valve and 4 to the upper connection of the process valve.
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