July 2020
Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
48
Section 8: Removal and Decommissioning
Removal and Decommissioning
Section 8: Removal and Decommissioning
8.1 Removal and Decommissioning
!
WARNING
Follow proper procedure. Always follow safe work practices remove and disassemble
G-Series actuator.
The below basic procedure should not supersede or replace any customer's plant safety
or work procedures. If a conict arises between this procedure and the customer's
procedures, the differences should be resolved in writing between an authorized
customer’s representative and an authorized Emerson/Bettis representative.
!
CAUTION
Isolate and power off actuator. Make sure actuator is isolated before removing from valve.
Turn OFF the power medium and bleed off all pressure rst, including storage tank
(if present). Next, bleed off pilot pressure, disconnect pneumatic pressure supply, pilot
tubing and electrical wiring (if equipped).
Before starting the disassembly, a large area should be created around the actuator so to
allow any kind of movement.
Separate the parts composing the actuator according to their nature (ex. metallic, and
plastic materials, uids etc.) and send them to differentiate waste collection sites, as
provided for by the laws and provisions in force.
8.1.1 Drain tanks and remove tubing from actuator. Remove accessories (if equipped)
and controls from actuator.
8.1.2 Remove all equipment mounted on top of actuator (limit switches, end of stroke
valve, and relevant pneumatic/electric connection, etc.)
8.1.3 Remove mounting bolts and actuator is ready to be removed from valve.
For complete actuator tear down refer to Section 2 of the manual.
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