Removal; Removing The Actuator From The Valve - Samson EB 8315 EN Mounting And Operation Instructions

11 Removal

The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
DANGER
!
Risk of bursting due to incorrect opening of
pressurized equipment or components.
Pneumatic actuators are pressure equipment
that may burst when handled incorrectly.
Flying projectile fragments or components
can cause serious injury or even death.
Before working on the actuator:
Î Depressurize all plant sections concerned
and the actuator. Release any stored en-
ergy.
WARNING
!
Risk of personal injury due to preloaded
springs.
Actuators with preloaded springs are under
tension. Incorrect opening of the actuator
can lead to personal injury through the sud-
den and uncontrolled projection of parts.
Î Only perform the activities described in
these mounting and operating instruc-
tions.
Î Do not open the actuator housing.
EB 8315 EN
WARNING WARNING
! !
Risk of personal injury due to exhaust air
being vented.
The actuator is operated with air. As a result,
air is vented during operation.
Î Wear eye and hearing protection when
working near the actuator.
Before removing the valve, make sure the fol-
lowing conditions are met:
− The actuator is put out of operation (see
the 'Decommissioning' section).
11.1 Removing the actuator
from the valve
To remove the Type 3379 Actuator from the
valve, send the entire control valve assembly
to SAMSON (see the 'Repairs' section).
Removal
11-1