Flowserve PMV Valve Control System - Manual (Page 3)

Manual F5 – 3 –
PMV Feedback module storage and handling procedures
PMV feedback modules are precision instruments which should be stored
and handled accordingly to avoid problems or damage.
Feedback modules contain electronic components which can be damaged by
exposure to water. Appropriate precautions should be taken to protect units
while in storage.
Warehouse storage
-Stored in original PMV shipping containers, units should be stored in an
environmentally controlled area, i.e. clean, cool (15-26
°
C, 60-80
°
F) and dry,
out of direct sunlight or weather exposure.
Field storage
- If feedback units must be stored outdoors, make sure front covers are
tightened, all conduits entries are sealed and that units not are exposed to
direct sunlight, rain or snow.
Potential damage mechanism
When units are stored in hot, humid climates, the daily heating/cooling cycle
will cause air to expand/contract and be drawn in and out of the feedback
housing through ports left open. Dependent on the local temperature
variations, humidity and dew points and time in storage, condensation could
occur and accumulate inside causing erratic operation or failure due to water
and corrosion. The potential for condensation damage is especially high in
southern climates and aggravated if units are exposed to direct sunlight.
For further assistance, please contact you nearest PMV office.
Storage Seal
F5 is supplied with conduit entry points sealed.
The seal is only a storage seal, not to be used as seal
when F5 is in operation.
If Storage Seal is removed or damaged, make sure
conduit entry points are resealed before further
shipping or storage.
Use proper cable glands or vapour proof tape.
Mount F5 on positioner P5/EP5 or actuator/valve
package. Remove Storage Seal for conduit entry E
1
& E
2
, make electrical connections, install proper
cable glands or plugs to ensure the units sealing.