FASANI OPERATING AND SAFETY INSTRUCTIONS
Through ConduiT Slab Type bolTed bonneT gaTe ValVeS
Before installation these instructions must be fully read and understood
STORAGE / PROTECTION / SELECTION
State of delivery
Our valves are delivered with protection in
accordance with customer’s specification, or in
accordance with the standard Quality Control
Plan. To protect the valve ends from damage,
the original wrapping and/or covers should be
kept and removed only before installing the
valve to the pipe.
Storage
When the valves have to be stored for some time
before being installed, storage should be in the
original delivery crates with waterproof lining
and/or desiccant in a clean, dry, indoor area.
If storage is for a period exceeding six months
the desiccant bags (if supplied) should be
substituted. If valves are stored for longer than
12 months, they should be inspected by our
personnel before installation.
Selection
Ensure the materials of construction of the
valve and pressure/temperature limits shown
on the identification plate are suitable for the
process fluid and conditions. If in doubt contact
your Emerson representative.
Limitations
• Do not use valve for end-of-line function. Std
safety practice requires in all instances at the
end of pipe 2 valves or one valve plus blind
flange.
• Do not use open/close valves for regulating
duties.
• Do not use process valves as stop valves for
flushing.
• Suggested allowable max pipeline flow
velocity is:
6m/s for liquid
80m/s for gas or steam.
INSTALLATION
WARNING
For safety reasons, it is important to take the
following precautions before you start to work on
the valve:
1. Before installing, operating or maintaining the
valve, read all labels fitted to the valve and the
present document.
2. Use valves only for the intended purpose
(according to contract).
3.
Any additional modifications and/or accessories
mounting on valves are not allowed without
approval from our technical department.
4. Personnel making any adjustments to the
valve should use equipment and clothing
normally used to work with the process where
the valve is installed.
5.
The line must be depressurized, drained, vented
and cooled down before installing the valve.
6. Handling and installing of valves, operators
and actuators must be carried out by qualified
personnel.
7. Ensure the valve materials of construction and
pressure/temperature limitations marked on
the identification label are above or equal to
service conditions for which the valve has been
designed.
8. Check correct electric connection of actuator if
any. Wrong connection may cause danger and
heavily damage the valve.
9. If the actuator is required to be repositioned
on the valve, it is necessary after this operation
to recalibrate the limit switches (this operation
is described in the actuator maintenance
manual). Non-calibrated actuators may
become dangerous and may cause irreparable
damage to the valve.
INSTALLATION
1. Through conduit valves are bi-directional,
unless they have an arrow applied on the
valve body that indicates the flow direction.
In this case, install the valve so that the
arrow is in accordance with the flow
direction (see the general arrangement
drawing).
2. Unless specifically stated on the General
Arrangement Drawing, installation must be
carried out:
- on horizontal pipeline, with stem vertical
or horizontal;
- on vertical pipeline, with stem horizontal.
3. In case of horizontal and vertical pipelines
the valve cover / stem must be turned
upside.
4. Remove protective covers from valve end
faces and any transportation protection
applied to the valve stem (if applicable).
Emerson.com/FinalControl VCOSI-01619-EN 18/02
© 2017 Emerson. All Rights Reserved.
FASANI OPERATING AND SAFETY INSTRUCTIONS
Through ConduiT Slab Type bolTed bonneT gaTe ValVeS
5. It is responsibility of the customer,
depending on the installation, to arrange
for a proper support for the valves and/or
the actuator, in particular for valves with
pneumatic actuators.
6. For flanged valves ensure that coupling
flanges and gaskets are clean and
undamaged.
For buttweld valves ensure that the weld
profile is clean and in suitable condition for
welding.
7. Should there be any possibility of abrasive
particles (welding residues, sand, chemical
cleaning residues etc.) within the piping
system, this could damage valve seating.
The system needs to be thoroughly flushed
and cleaned prior to operation.
8. If valve ends are flanged, ensure that the
valve flanges and pipe flanges are aligned
correctly; bolting should be easily inserted
through mating flange holes. Tighten the
flange bolts using the crossover method.
9. Install the valve in the pipework ensuring
easy access to the operating mechanism
(handwheel, actuator) if applicable, and
ensure a stress-free installation at the valve
ends.
10. Welding and thermic treatment temperature
limitations for the valve will be stated on the
general arrangement drawing (if applicable).
Consideration must be given to both these
limitations and those indicated on the valve
nameplate.
Preheat / local thermic treatments must be
performed in accordance with the relevant
WPS/PQR and they are under complete
responsibility of the customer.
11. All valves must be partially opened prior to
welding.
12. Pipeline flushing: valve materials are
usually resistant against pickling fluids
(as the pipe material is). If required, check
resistance to pickling with the pickling
company.
If necessary, disassemble valve internal
parts and replace them with special pickling
inserts. Protect sensitive places with paint
or cover plates.
Note: Damage may occur to the valve
(i.e. to the valve seats) during high speed
flushing operation, caused by particles
that could be present in the line. For this
reason, it is recommended to arrange the
valve in open position and not to perform
any other actions during pickling and
flushing. Thepickling process must take
place without interruptions to prevent
unnecessary impingement due to the
pickling fluid. At the end, remove pickling
fluid completely. Check with particular
care the dead spaces in the valves and
the interstices between pipe sections
(performinspection if necessary).
Replace gaskets and gland packing which
have been in contact with the pickling
fluid. Carefully clean sealing areas before
replacement.
OPERATING AND ROUTINE MAINTENANCE
!! Read carefully this document and all
warning labels fitted to the valve before
carrying out any action on the valve!!
Handling
WARNING
• Before lifting or handling the valve, check that
there are no execution limits.
• The equipment used for valve handling and
lifting (fasteners, hooks, etc.) must be sized and
selected by 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 the valve passes over the workers, the
equipment or any other place where a possible
fall could cause damage. In any case, the local
safety regulations must be respected.
• To lift the valve, hook the slings to the flange
holes or valve body holes; never lift the valve
through the actuator.
2
FASANI OPERATING AND SAFETY INSTRUCTIONS
Through ConduiT Slab Type bolTed bonneT gaTe ValVeS
Operation
Through conduit valves can be operated
manually, automatically or by an external
operator (electric/pneumatic/hydraulic).
All handwheel operated valves, including
valves operated by electric actuator, are
closed by rotating the handwheel clockwise.
The open/close position is indicated by a
position indicator on valve (if fitted) as well as
the indicator arrow on the electric actuator
(iffitted). Actuator travel switches are set at
the factory prior to shipment. They must not be
altered before valve or actuator disassembly.
Inany case, these operations must be
performed by qualified and skilful personnel,
always following the instructions included in
the maintenance manuals. In these valves the
torque microswitches of the actuator must not
be used; the actuators set-up is performed by
means of the position micro, both in opening
and in closing. All the electric connections
must be performed by qualified personnel.
During this phase, the qualified personnel must
check the correct setting of every actuator limit
switch. The valve must be operated only by the
relevant operating instrument, without using
any lever or additional wrench. During start-up
of the plant check gland packing and body/
bonnet flange bolts.
MAINTENANCE
WARNING
• Depressurize the line before starting any
maintenance. Failure to do so may cause
serious personal injury and/or equipment
damage.
• In case the valve should be removed from the
line, depressurize the line with the valve in open
position. Then, close the valve by position.
If valves are fitted with grease nipples then
grease should be applied at 3 month intervals.
Exposed, threaded, operating stems should
have grease applied at similar intervals.
Lubricate any actuators, gearboxes according
to individual manufacturer instructions.
No other routine maintenance is required other
than periodic inspection to ensure satisfactory
operation and sealing. In case of leakage from
the packing, we suggest the following to stop it:
a. inject a sealant through the relevant
injector, or
b. depressurize the valve and change the
packing, in accordance with the relevant
maintenance instructions.
SPARE PARTS
Use always original spares only.
Our valves are identified with a serial number,
which is stamped on the identification plate.
This reference should be quoted in respect of
any after sales queries, spare parts or repair
enquiries/orders.
3
FASANI OPERATING AND SAFETY INSTRUCTIONS
Through ConduiT Slab Type bolTed bonneT gaTe ValVeS
Targhetta x Through conduit Fasani
TAGPLATE REFERENCE
No. Description
1. Year
2. Type
3. Size
4. Class
5. End to end
6. Body
7. Stem
8. Seat
9. Disc
10. Designer
11. Temperature
12. Pressure
13. Shell test
14. Differential pressure set up actuator
15. Temperature minimum
16. Pressure at t.min
17. Temperature maxim
18. Pressure at t.max
19. N.A.
20. N.A.
21. Serial number
22. PED category
23. Fluid
24. Specified minimum yield strenght
25. Tag
26. Order number
27. N.A.
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fasani is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson
and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
Emerson.com/FinalControl
4
Loading...