GEA VARIVENT DN 25, Operating Instruction

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2.
Shut off the control air supply.
3. Disconnect the power supply.
4. Take the valve out of the pipe section, with all housings and housing
connections if possible.
®
Done
10.5 Disassembly
10.5.1 Start disassembly
Requirement:
• No solenoid valve must be actuated electrically.
If required, operate the pilot valve with manual override. For this, observe
marking Y1 on the pneumatic block.
• The pneumatic and electrical connections on the plant side can remain on the
control top.
Warning!
Spring tension in the valve
Danger of injury when detaching the clamp connection (43.1) as the
released spring pretension will suddenly lift the actuator.
► Therefore, release the spring tension before detaching the clamp
connection by pressurising the actuator with compressed air at max. 8 bar.
Fig.10
Carry out the following steps:
1. Remove the hood (B) of the control top.
Maintenance
Disassembly
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