www.valves.emerson.com VCIOM-01412-EN-15/05
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Cast pressure seal - Style A Swing check and tilting disc configuration
SEMPELL DEWRANCE PRESSURE SEAL CHECK VALVES
InstallatIon and MaIntenance InstructIons
SECTION 1 - VALVE STORAGE
1.1 Preparation and Preservation for
Shipment
All valves are properly packed in order
to protect the parts that are subject to
deterioration during transportation and storage
on site. In particular, the following precautions
should be taken:
1. The weld ends surface shall be protected
with suitable protective like Deoxaluminite.
The end shall be closed with plywood or
plastic disc fixed at the edge by strips.
2. The type of packing must be defined in the
Customer’s Order and shall be appropriate
to ensure safe transportation to final
destination and eventual conservation
before installation.
1.2 Handling Requirements
A - Packed Valves
Crates:
Lifting and handling of the packed valves in
crates will be carried out by a fork lift truck, by
means of the appropriate fork hitches.
Cases:
The lifting of packed valves in cases should be
carried out in the lifting points and at the center
of gravity position which have been marked. The
transportation of all packed material must be
carried out safely and following the local safety
regulations.
B - Unpacked Valves
1. The lifting and the handling of these valves
has to be carried out by using appropriate
means and at respecting the carrying limits.
The handling must be carried out on pallets,
protecting the machined surfaces to avoid
any damage.
2. With valves of large dimensions, the sling
and the hooking of the load must be carried
out using the appropriate tools (brackets,
hook, fasteners, ropes) and load balancing
tools in order to prevent them from falling
or moving during the lifting and handling.
CAUTION
For valve handling and/or lifting, the lifting
equipment (fasteners, hooks, etc.) must be sized
and selected while taking into account the valve
weight indicated in the packing list and/or delivery
note. Lifting and handling must be made only by
qualified personnel.
Caution must be taken during the handling to
avoid that this equipment passes over the workers
or over any other place where a possible fall
could cause damage. In any case, the local safety
regulations must be respected.
NOTE:
Storage in an open area for a limited period
can be considered only in case the valves have
appropriate packing (packed in cases lined with
tarred paper, and contents well protected with
barrier sacks).
Do not place consignment packages directly on
the ground.
Do not expose consignment packages to the
weather or directly to the sun.
Check the packaging every two months.
Valve slinging
FIGURE NO. 1
Swing Check and Tilting Disc Valves
1.3 Storage and Preservation before
Installation
In case the valves have to be stored before
installation, the storage has to be carried out
in a controlled way, and has to be performed in
accordance with the following criteria:
1. The valves have to 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 have to be carried out
in the storage area to verify that the above
mentioned conditions are maintained.
Warning
For valve handling and/or lifting, the lifting
equipment (fasteners, hooks, etc.) must be sized
and selected while taking into account the valve
weight indicated in the packing list and/or delivery
note. Lifting and handling must be made only by
qualified personnel.
Caution must be taken during the handling to
avoid that this equipment passes over the workers
or over any other place where a possible fall
could cause damage. In any case, the local safety
regulations must be respected.
