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Emerson VANESSA 30,000 Series Installation, Operation And Maintenance Manual page 2

Triple offset valve (tov)
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VANESSA SERIES 30,000 TRIPLE OFFSET VALVE (TOV)
INSTALLATION, OPERATION AND MAINTENANCE MANUAL (IOM)
CAUTION
For valve handling and/or lifting, the lifting
equipment (fasteners, hooks, etc.) must be sized
and selected by taking into account the valve weight
indicated on the packing list and/or delivery note.
Lifting and handling must be carried out only by
qualified personnel.
Fasteners must be protected by plastic covers in
sharp corner areas.
Caution must be given during handling to avoid
that equipment passes over workers or any other
place where a possible fall could cause damage.
In any case, the local safety regulations must
be followed.
NOTICE
In the upper side always fasten the valve from the
bracket.
Solutions A and C in figure 1 are applicable when the
protrusion of the bottom hub from the flange or body
is sufficient to position securely the lifting strap.
Solutions B and D in figure 1 are applicable when the
protrusion of the bottom hub from the flange or body
is NOT sufficient to position securely the lifting strap.
In such cases use the flange holes close to the bottom
hub and fasten the valve securely. For actuated valves
refer to the product technical documentation provided
with the relevant supply.
1.3 Storage and preservation before installation
In case valves have to be stored before
installation, the storage must be carried out in
a controlled way and performed in accordance
to the following criteria:
1. The valves must be stocked in a closed,
clean and dry storage room.
2. The disc must be in the closed position,
and the end faces must be protected with
plastic or wooden discs fixed with straps.
If possible, keep the original protection.
3. Periodical checks must be carried out in
the storage area to verify that the above-
mentioned conditions are maintained
throughout.
NOTICE
Storage in an open area for a limited period of time
can be considered only in case the valves have
appropriate packaging, are packed in cases lined with
tarred paper, and contents are well protected with
barrier sacks.
LIFTING AND HANDLING OF VALVES INSTALLED IN HORIZONTAL PIPELINES
A
LIFTING AND HANDLING OF VALVES INSTALLED IN VERTICAL PIPELINES
C
FIGURE 1
B
D
2

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