
8
Installation
Type 2031 INOX
Devices with VG/VS welded body
Before welding the body, the actuator must be removed.
6.2 Installation
WARNING!
Risk of injury from incorrect installation!
Non-observance of the specified tightening torque is hazardous
as the device may be damaged.
▶Observe tightening torque during installation.
6.2.1 Devices with VG/VS welded body
Before welding the body, the actuator must be removed.
Remove actuator and diaphragm from the body
Procedure for control function A:
→Apply control air connection with compressed air (5.5 bar).
→Loosen fastening screws in diagonal pairs and remove actuator
together with diaphragm from the body.
→Weld body into the pipeline.
Procedure for control function B:
→Loosen fastening screws in diagonal pairs and remove actuator
together with diaphragm from the body.
→Weld body into the pipeline.
6.2.2 Installation
Installation for actuator with control function A:
→Align diaphragm.
The mark tab of the diaphragm must be vertical to the flow
of direction.
→Place actuator on the body.
→Apply control air connection with compressed air (5.5 bar).
→Lightly tighten fastening screws crosswise until the diaphragm is
situated between the body and actuator.
Do not tighten screws yet!
→Switch diaphragm valve twice.
→Tighten fastening screws.
Observe tightening torque (2.5 Nm)!
Installation for actuator with control function B:
→Align diaphragm.
The mark tab of the diaphragm must be vertical to the flow
of direction.
→Place actuator on the body.
→Lightly tighten fastening screws crosswise until the diaphragm is
situated between the body and actuator.
Do not tighten screws yet!
→Apply control air connection with compressed air (5.5 bar).
→Switch diaphragm valve twice.
→Tighten fastening screws.
Observe tightening torque (2.5 Nm)!
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