Emerson Vanessa 30000 Series Installation And Maintenance Instructions Manual
VANESSA SERIES 30,000
InstallatIon and MaIntenance InstructIons
Installation and Maintenance Instructions Vanessa Series 30,000 - Basic configuration
body style double flanged, wafer, lug and buttweld
All actuated valves must be securely
palleted or crated with particular attention,
in order to ensure that parts of actuator
(especially pneumatic piping or accessories)
do not extend beyond the skid/crate.
4 The type of packing must be defined in the
customer’s order and will be appropriate
to ensure safe transportation to final
destination and eventual conservation
before installation.
1.2 Handling requirements
Applicable product range
• Series 30,000 Basic configuration, double
flanged body style, which can be installed
between two flanges or stud-bolted to either
flange.
• Series 30,000 Basic configuration, lug-single
flange body style, which must be bolted to
either flange.
• Series 30,000 Basic configuration, wafer body
style, which can be installed between two
flanges.
• Series 30,000 Basic configuration, buttweld
ends, which must be welded to the line.
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 valves must be packed with the disc
in the closed position. The flange sealing
surfaces (raised faces) of the valves will be
protected with suitable protective grease.
The end faces of the valve must be protected
with plastic or wooden discs fixed with
straps.
2 Bare shaft valves: the ends of the shaft must
be protected with plastic tubes.
3 Valves with actuators: in case of “fail
open” pneumatic - hydraulic actuators
with manual override, the manual override
shall be used to manually close the valves
and to lock them in position. If there is no
manual override, cut outs are made in the
flange protectors for the disc, and the disc is
securely protected.
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 will
be carried out in the lifting points and
in 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 by respecting the carrying limits.
The handling must be carried out on pallets,
protecting the machined surfaces to avoid
any damage.
2 With large dimension valves, the sling and
the hooking of the load must be carried out
by 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.
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VCIOM-00006-EN 18/04
VANESSA SERIES 30,000
InstallatIon and MaIntenance InstructIons
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 to 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.
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).
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.
LIFTING AND HANDLING OF VALVES INSTALLED IN HORIZONTAL PIPELINE
FIGURE NO. 1A
Fasteners must be protected by plastic covers in
sharp corner areas.
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
Solutions A and C 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 are applicable when the protrusion
of the bottom hub from the flanges is NOT sufficient to
position securely the lifting strap.
In presence of solution B, insert a stud bolt and fix it
securely with nuts as indicated in the drawing detail.
In presence of solution D, insert a lifting eyelet in the
flange threaded holes close to the bottom hub and fix
it securely as indicated in the drawing detail.
LIFTING AND HANDLING OF VALVES INSTALLED IN VERTICAL PIPELINE
FIGURE NO. 1B
2
VANESSA SERIES 30,000
InstallatIon and MaIntenance InstructIons
SECTION 2 - INSTALLATION
2.1 Valve inspection
1 Carefully remove the valve from the
shipping package (box or pallet) avoiding any
damage to the valve or, in case of automated
valves, to the electric or pneumatic/
hydraulic actuator or instrumentation.
2
The valves are shipped with the ends
protected with caps and a thin layer of
protective grease. Before installing the valve,
remove the caps and clean carefully, then
de-grease both surfaces with a solvent.
Clean the inside of the valve using an air line.
Ensure that there are no solid objects such as
pieces of wood, plastic or packing materials
within the valve or on the valve seat.
3 Inspect the seal ring to ensure that it
was not damaged during handling. This
is especially important in case of valves
shipped with the disc in the open position
and with “fail-open” actuators.
4 Confirm that the materials of construction
listed on the valve nameplate are
appropriate for the service intended and are
as specified.
5 Ensure that the packing gland adjusting
nuts against the packing gland flange
cannot be rotated by hand.
2.2 Valve installation
Vanessa recommends that the optimum valve
installation is with the shaft in the horizontal
plane, after which it is preferable to have the
shaft at an angle so as to minimize any problem
associated with solid particles present in the
fluid that otherwise could deposit in the lower
bearing area.
NOTE
The Vanessa valve is designed to withstand design
differential pressure in both directions.
Isolating applications
The valve operating torque affects the sealing
performances. Vanessa attached the indication plate
P (figure 2) on the upstream flange as a reference for
the direction of the installation.
The best sealing performance, also for bi-directional
service, will be maintained when pressure acts on the
shaft side of the valve, which is recommended when
the service tightness requirements are more stringent
in one specific direction.
Control applications (uni-directional, where perfect
sealing is not required)
The plate could be fixed on either flange indicating
the preferred direction. Please respect the direction
of installation indicated on the relevant flange. The
selection of the actuator has been made for that
specific direction of installation.
Unless otherwise recommended by Vanessa,
the valve should be installed with the disc in
the closed position to ensure that the seal ring
in the disc is not damaged during installation.
Particular care should be taken with those
valves equipped with ‘fail-open’ actuators.
For operating temperatures above 200°C
(392°F) thermal insulation of the valve body is
recommended.
If the valve has threaded tapped holes in
the hub areas, Vanessa recommends to use
hexagonal head bolts or shorter studs to
connect the valve in this zone. The depth of the
tapped holes in the bodies of all Series 30,000
valves is specified in the technical literature.
Failure to use correct bolts/studs may result in
damage to the valve.
If the valve has welded ends, perfectly clean
and degrease the ends to be welded (of both
valve and pipe), using a cloth with acetone
or similar product. Insert correctly the valve
between the edges of the pipe to be welded,
taking care of the plate that indicates the
preferential side for sealing. Carry out an initial
accurate spot welding verifying the perfect
alignment of the edge and axis of the valve.
Carry out the welding of the edge proceeding
in alternate way on both sides to reduce
the tensions introduced by the welding. It is
important to respect the interpass temperature
which must not go above 150°C (302°F).
Handling and lifting of the valves during
installation MUST be performed following the
same criteria and instructions described in
previous points “1.2 Handling requirements”
and “1.3 Storage and preservation before
Installation”.
IMPORTANT
The valve trim is designed to withstand and to seal
against the design differential pressure marked
on the valve nameplate which data are supplied
together with the present document.
Since it is impossible to maintain complete
control on the external input forces to the trim
coming from gear/actuator, the valve trim shall
not be used as a final protective mean against
the hazard caused by the closed valve upstream
pressure.
IMPORTANT
It is recommended to perform piping flushing
before installation of valve.
If this is not possible, the valves must be set with
the disc in full open position before starting with
flushing.
CAUTIONS
When the pipe is lined, be careful that the disc
does not come into contact with the lining during
its stroke, especially in lug and wafer body styles.
This verification is very important to avoid any
damage to the valve.
FIGURE 2
3
VANESSA SERIES 30,000
InstallatIon and MaIntenance InstructIons
2.3 Valve verification
1 Tighten the packing just enough to prevent
stem leakage. Over-tightening will decrease
packing life and increase operating torque.
2 Check the operation of the valve by stroking
it to “full open” and “full close”. To verify the
valve orientation, the disc position indicator
mark on the shaft (during the normal open
to close cycle) should rotate clockwise from
a position in line with the pipe (see figure3a)
to a position parallel to the pipe flanges
(seefigure 3b).
IMPORTANT
If piping system is pressurized with water for
testing, and in case the piping system has been
shut down after testing for a long time, the
following recommendations should be adopted:
a. Use corrosion inhibitor with water to
pressurize the piping system.
b. After testing, the piping system should be
depressurized and the test water completely
drained.
c. After testing, valves must be maneuvered
through a complete opening/closing cycle and
disc left in half-open position. Apply a film of
protective oil in the packing area by means of a
paintbrush. The protective oil must fill the area
between shaft and packing bushing.
Clockwise to close
Disc in open position
FIGURE NO. 3A
Disc in closed position
Disc position
indicator mark
Disc - shaft key and position indicator mark plane
Shaft key
Disc position indicator mark
Clockwise to close
Shaft key
FIGURE NO. 3B
Disc - shaft key and position indicator mark plane
4
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