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10-2 EB 8015 EN

Decommissioning

(e.g. due to seizing up after remaining in

the same position for a long time), re-

lease any stored energy in the actuator

(e.g. spring compression). See associat-

ed actuator documentation.

Risk of personal injury due to exhaust air

being vented.

While the valve is operating, air is vented

from the actuator, e.g. during closed-loop

operation or when the valve opens or closes.

Î Wear eye protection when working in

close proximity to the control valve.

Risk of personal injury due to residual

process medium in the valve.

While working on the valve, residual me-

dium can ow out of the valve and, depend-

ing on its properties, cause personal injury,

e.g. (chemical) burns.

Î Wear protective clothing, safety gloves,

respiratory protection and eye protec-

tion.

To decommission the control valve for service

work or to remove it from the pipeline, pro-

ceed as follows:

1. Close the shut-off valves upstream and

downstream of the control valve to stop

the process medium from owing

through the valve.

2. Completely drain the pipelines and

valve.

3. Disconnect and lock the pneumatic air

supply to depressurize the actuator.

4. Release any stored energy.

5. If necessary, allow the pipeline and valve

components to cool down or warm up to

the ambient temperature.

WARNING

Samson EB 8015 EN User Manual

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