Burkert 2103 Instructions De Service page 34

8.3. installation
If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.
Warning!
risk of injury from improper installation!
Non-observance of the tightening torque is dangerous as the
device may be damaged.
• Observe the tightening torque (see following table "Tightening
torques for diaphragms").
8.3.1. devices with Vg/Vs welded housing
Before welding in the housing, remove the actuator.
procedure for control function a
→
Pressurise control air connection
pressed air (5 bar) (see diagram "Control air connection").
→
Remove actuator with diaphragm by loosening the flange screws.
→
Weld housing into the pipeline.
procedure for control functions B and i
→
Remove actuator with diaphragm by loosening the flange screws.
→
Weld housing into the pipeline.
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1 of the actuator with com-
english
Type 2103
Installation
8.3.2. installation
installation for actuator with control function a:
→
Pressurise control air connection
pressed air (5 bar) (see diagram "Control air connection").
→
Lightly cross-tighten the housing screws until the diaphragm is
between the housing and actuator.
do not tighten the screws yet.
→
Actuate the diaphragm valve twice.
→
Without pressurisation tighten the housing screws to the per-
mitted tightening torque (see following table "Tightening torques").
installation for actuator with control functions B and i:
→
Lightly cross-tighten the housing screws without pressurisation
until the diaphragm is between the housing and actuator.
do not tighten the screws yet.
→
Pressurise control air connection
pressed air (5 bar) (see diagram "Control air connection").
→
Actuate the diaphragm valve twice.
→
Tighten the housing screws to the permitted tightening torque
(see following table "Tightening torques for diaphragms").
Control air connection
SFA, SFB, SFI
Fig. 19: Control air connection
1 of the actuator with com-
1 of the actuator with com-
1