Samson 3291, Перевод оригинальной инструкции

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11-2 EB 8072 EN
Removal
springs is transmitted to the actuator stem
and the stem (9).
Î
First remove the actuator from the valve
or ensure it cannot transmit any forces to
the actuator stem before removing the
anti-rotation fixture on the plug stem.
Before removing the valve, make sure the fol-
lowing conditions are met:
− The control valve is put out of operation
(see the 'Decommissioning' section).
11.1 Removing the valve from
the pipeline
a) Version with flanges
1. Support the valve to hold it in place
when separated from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
2. Unbolt the flange joint.
3. Remove the valve from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
b) Version with welding ends
1. Support the valve to hold it in place
when separated from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
2. Cut the pipeline in front of the weld
seam.
3. Remove the valve from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
11.2 Removing the actuator
from the valve
See associated actuator documentation.