Emerson Fisher TBX User manual

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FisherrTBX Steam Conditioning Valve
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . .
Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location of Pressure Tap 2. . . . . . . . . . . . . . . . . .
Location of Temperature Sensor 2. . . . . . . . . . . .
Control Strategies 2. . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal of Valve Bonnet and Trim 10. . . . . . . . .
Removal and Replacement of Nozzles 12. . . . . .
Valve Assembly 12. . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 15. . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual includes installation,
maintenance, and operation information for the
Fisher TBX control valve. Refer to separate
instruction manuals for instructions covering the
actuator and accessories.
Do not install, operate, or maintain a TBX valve
without being fully trained and qualified in valve,
actuator, and accessory installation, operation, and
maintenance. To avoid personal injury or property
damage, it is important to carefully read, understand,
and follow all the contents of this manual, including
all safety cautions and warnings. If you have any
questions about these instructions, contact your
Emerson Process Management sales office before
proceeding.
Description
The TBX Steam Conditioning Valve (see figure 1)
provides a convenient and efficient way to reduce
steam pressure and temperature within a single
device. Typical installations include steam
backpressure control, turbine bypass, boiler start-up
service, auxiliary steam letdown for drying rolls,
Figure 1. Fisher TBX Steam Conditioning Valve
W8740-2A
kettles, equipment drives, plant heating, and other
loads requiring dependable and accurate control of
steam pressure and temperature.
The TBX Steam Conditioning Valve (figure 1) is
designed to handle the most severe applications in
today’s cycling power plants as well as provide
precise pressure and temperature control for
process applications. The TBX incorporates over 20
years of steam conditioning experience and product
development. The valve body is designed with the
latest finite element analysis (FEA) and
computational fluid dynamics (CFD) tools to optimize
performance and reliability for demanding steam
systems.
The TBX is a flow up design providing the ultimate
combination of performance and maintainability (see
figure 2). The TBX incorporates Emerson Process
Management’s low noise Whisper Trimt
technology. The simplified trim configuration is
thermally compensated to handle the rapid changes
in temperatures expected during a turbine trip.
Instruction Manual
D103172X012
February 2010 TBX Valve

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Instruction Manual
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Table 1. Specifications for Standard Designs (Physical Specifications)
End Connection Sizes(1)
JNPS #x8(2), J#x12, J#x16, J#x18, J#x20,
J#x24, J#x30, and J#x36
End Connection Types
JASME Buttweld (all sizes)
JASME Raised Face Flanges (all sizes)
Configuration
Angle Pattern (Flow Up)
Valve Body Ratings(3)
JCL600, JCL900, JCL1500, and JCL2500
Bonnet Type
Bolted
Shutoff Classifications per ANSI/FCI 70-2 and
IEC 60534-4
JClass V (standard) (Whisper Trim III)
JClass V (standard) (WhisperFlo)
Flow Characteristics(4)
Whisper Trim III Cages: Linear
WhisperFlo: Linear
Flow Direction
Whisper Trim III Cage: Flow up
WhisperFlo: Flow up
1. Standard end connection sizes. Alternate inlet and outlet sizes available for each valve body size to match piping requirements.
2. Values given are Inlet versus Outlet. # represents inlet size, less than or equal to the outlet size, per customer requirements.
3. Not all valve sizes available in all pressure ratings.
4. Contact your Emerson Process Management sales office for special characterized cages.
Water atomization and vaporization are key
elements in any steam conditioning application. The
TBX incorporates a spraywater manifold of variable
geometry Type AF nozzles producing a spray
pattern suitable for high rangeability applications.
These nozzles are strategically placed to achieve
complete mixing and quick vaporization at all flowing
conditions (see figure 2). Years of research in spray
atomization and vaporization were key to optimizing
the water injection system. Extensive use of CFD
analysis, in addition to field performance feedback,
was used to validate spray system enhancements.
Location of Pressure Tap
If controlling downstream pressure, it is important
that the pressure tap be located at a distance of not
less than ten (10) feet from the outlet of the valve.
Pressure taps for backpressure control can be
mounted directly before the valve inlet. The pressure
sensor and transmitter should be mounted in
accordance with the manufacturer’s instructions.
Location of Temperature Sensor
The location of the temperature sensor is dictated by
the operating conditions of the application and is
shown on the customer specification sheet. The type
of temperature sensor and thermowell selected can
significantly affect the lag time and control
parameters of the temperature control loop. Consult
the manufacturer of the temperature sensor for
details. Mounting of the temperature sensor and
transmitter should be in accordance with the
manufacturer’s instructions.
Control Strategies
Pressure control is normally a closed loop feedback
system. The process variable can be either the
upstream or downstream pressure, depending on
the application. The temperature control strategy can
be either feedforward or feedback depending on
external factors and application requirements. A
typical closed loop feedback temperature control
system (see figure 3) is used when there is an
accurate and consistent method for temperature
measurement. By definition, the system is
dependent on detecting a deviation in setpoint and
feeding this information back to the control system to
initiate final control element adjustment. See figure 3
for an example.
A typical feedforward temperature control system
(see figure 5) is one that responds to input variables
and makes adjustments to the final control element
to keep the desired setpoint constant. Feedforward
temperature control needs to be used when it is not
possible to get accurate temperature measurement
using normal feedback control techniques, when

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Instruction Manual
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Table 2. Specifications for Standard Designs (Material Specifications)
Body/Bonnet
JSA105 (Carbon Steel)
JSA182 Grade F22 (2-1/4Cr-1Mo)
JSA182 Grade F91 (9Cr-1Mo-V)
Bonnet Bolting
JSA105 Valve Body -- SA193 Grade B7
JSA182 Grade F22 Valve Body
-- SA193 Grade B16/N07718
JSA182 Grade F91 Valve Body
-- SA193 Grade B16/N07718
Control Plug
SA182 Grade F22 with Alloy 6 Guiding and
Seating Surfaces(1)
Stem
SA479 Type S20910 (SA105 and SA182 Grade
F22 valve bodies)
A565 Grade 616 (SA182 Grade F91 valve bodies)
Cage
SA182 Grade F22 Nitrided(1)
JS41000 cage, F22 Nitrided retainer(2)
Seat
JSA105 Valve Body -- Carbon Steel with Alloy 6
Seating Surface
JSA182 Grade F22 Valve Body -- F22 with Alloy
6 Seating Surface
JSA182 Grade F91 Valve Body -- F91 with Alloy
6 Seating Surface
Piston Rings
Alloy 6 with N07750 Expander
Bore Seal
N07718
Gaskets
N06600/Graphite
Packing
Graphite/Flexible Graphite
Nozzles
S41000 SST
1. For Whisper III constructions.
2. For WhisperFlo constructions.
control performance requires more responsiveness,
or when the control variables are changing in a
disproportionate manner. Such control is available
via the use of an external logic controlling device,
e.g. PLC or DCS, and incorporating a control
algorithm to determine the appropriate system
response to achieve the desired outlet temperature.
See figure 5 for an example.
Installation
WARNING
Always wear protective gloves,
clothing, and eyewear when
performing any installation operations
to avoid personal injury.
Personal injury or equipment damage
caused by sudden release of pressure
may result if the TBX valve is installed
where service conditions could exceed
the limits of the pressure rating noted
on the nameplate. To avoid such injury
or damage, provide a relief valve for
over pressure protection as required
by government or accepted industry
codes and good engineering practices.
Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section in this instruction manual.
CAUTION
This valve is intended for a specific
range of service conditions (see table
1). Applying different conditions to the
valve could result in parts damage,

TBX Valve
Instruction Manual
February 2010
4
malfunction of the valve, or loss of
control of the process. Do not expose
this valve to service conditions or
variables other than those for which
this valve is intended. If you are not
sure what these conditions are, you
should contact Emerson Process
Management for more complete
specifications. Provide the product
serial number (shown on the
nameplate) and all other pertinent
information.
1. Before installation, all piping upstream of the
valve must be blown clean so that no loose materials
such as welding slag, dirt or other foreign matter, are
left in the pipe. Use care to keep foreign matter out
of the line openings while preparing the valve
installation.
2. If possible, before fitting in the line, connect the
actuator to a temporary air supply and operate to
verify positioning. Disconnect the instrument lines
(if applicable).
WARNING
Do not lift the valve by its actuator
yoke. Personal injury or damage to
equipment could occur if the valve is
improperly lifted into place.
3. Arrange a lifting sling around the main valve body
to safely lift the valve to the pipe opening.
WARNING
Do not expose the valve to undue
stresses by installing it in bent pipes
or flanges. Personal injury and
equipment damage could result from
flange sealing failure due to improper
installation.
4. Flanged Connections—Grease the flange
connection bolts with a high temperature thread
lubricant. Install flange gaskets and connection bolts
per accepted practices and tighten securely.
5. Welded Connections—Welding procedures
should be in accordance with the applicable codes
and the base materials. For preheat, welding
electrodes, and postweld heat treatment, refer to the
applicable codes and practices applicable for the
specific facility. Materials are specified on the
customer specification sheet. Emerson Process
Management recommends the valve be
disassembled for welding, however if the valve inlet
and outlet connections are to be welded with the
valve assembled, the valve plug should be
maintained off the valve seat during all associated
operations. If the valve is to be welded by SMAW
process, the valve must be disassembled for welding
to ensure that any weld slag is removed from the
valve.
CAUTION
Depending on valve body materials
used, post weld heat treating may be
required. If so, damage to internal
parts is possible. In general, if post
weld heat treating is to be performed,
all trim parts and nozzles should be
removed. Contact your Emerson
Process Management sales office for
additional information.
6. Remove the spraywater control valve and flush
the cooling water line until all debris is removed from
the line prior to connecting it to the TBX valve. Use
only clean sources of cooling water to reduce the
possibility of nozzle clogging. A 100 mesh strainer
should be installed on the water line as close to the
TBX valve as possible. Review strainer
manufacturer’s pressure drop curves to determine
appropriate strainer body size. You may need to use
a strainer that is larger than the water line size.
WARNING
Failure to use a strainer could result in
nozzle clogging and subsequent
property damage or loss. Uncontrolled
temperatures resulting from clogged
nozzles may result in equipment or
process temperature limits being
exceeded. Exceeding system
temperature limits could result in
property damage or personal injury.

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Instruction Manual
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Figure 2. Fisher TBX Cross Sectional View
W8493-1
DETAIL OF SPRAY NOZZLE
W8494-1
FLOW

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Figure 3. Typical Fisher TBX Feedback Control Strategy
TC = TEMPERATURE CONTROLLER
PC = PRESSURE CONTROLLER
PT = PRESSURE TRANSMITTER
TT = TEMPERATURE TRANSMITTER
STEAM FLOW
WATER FLOW
E0918-IL
STRAIGHT LENGTH

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Instruction Manual
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Figure 4. Typical Fisher TBX Installation
WATER FLOW
STEAM FLOW
TE = TEMPERATURE SENSOR
PC = PRESSURE CONTROLLER
E0917-IL

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Figure 5. Typical Fisher TBX Feedforward Control Strategy
PT = PRESSURE TRANSMITTER
TT = TEMPERATURE TRANSMITTER
FM = FLOW MEASUREMENT
ZT = POSITION TRANSMITTER
STEAM
FLOW
WATER FLOW
E0919-IL

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7. A length of straight pipe is required downstream
of the TBX valve to ensure complete vaporization of
cooling water. An example of a typical installation
appears in figure 3. Consult the TBX customer
specification sheet for the required distance of
straight pipe. This is unique for each application and
supplied by Emerson Process Management.
8. Typically, a temperature sensor should be
mounted a minimum distance of 9.1 m (30 feet)
downstream of the TBX valve. This distance will vary
depending on a number of factors including steam
velocity and percentage of spraywater.
Consult the customer specification sheet provided
with the unit for this distance. The steam line should
not have any branch lines dividing the steam flow
between the TBX valve and the temperature sensor.
If you have any questions, contact your local
Emerson Process Management sales office.
9. A typical control loop is illustrated in figure 3. A
pressure transmitter senses the pressure
downstream (or upstream in backpressure control
applications, per figure 4). The pressure controller
sends a signal to the actuator positioner opening or
closing the TBX valve as required to maintain
pressure. A rising stem opens the TBX valve to allow
additional steam flow. A temperature sensor (TE)
measures changes in temperature and a
temperature transmitter (TT) transmits the signal to
the temperature control device. The output signal
from the controller is sent to the positioner on the
cooling water (spraywater) control valve (SWCV).
The positioner’s output signal strokes the SWCV
open, increasing water pressure on the nozzles.
Increasing water pressure upstream of the nozzles
increases water flow through the nozzles.
CAUTION
Pneumatic lines (where applicable)
should be thoroughly blown clean with
dry air before connection. Check
electronic lines for correct connection.
10. If foreign debris has been introduced into the
valve or upstream piping during installation, it must
be removed prior to using the valve for the first time.
A Blowout or Blow-through tool can be purchased to
match the TBX valve and facilitate piping blowdown
without removal of the valve from the line. Contact
your Emerson Process Management sales office for
pricing and availability of fixtures.
11. After cleanliness of the piping system has been
assured, connect instrumentation and power supply
to the TBX valve actuator and associated
equipment.
12. Monitor the TBX valve as the system is brought
on line. Some visible vapors may be seen as the
lubricants are heated. If you see any steam leaks
after startup, follow isolation and disassembly
procedures and disassemble the valve and replace
the gaskets (key 43). If the packing box leaks,
tighten hex nuts (key 68). If leakage continues,
replace the packing (key 64). Be sure to properly
isolate the TBX valve prior to disassembly of valve
or packing.
Maintenance
Servicing
WARNING
Avoid personal injury or property
damage from sudden release of
process pressure or bursting of parts.
Before performing any maintenance
operations:
DDo not remove the actuator from
the valve while the valve is still
pressurized.
DAlways wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations to avoid personal injury.
DDisconnect any operating lines
providing air pressure, electric power,
or a control signal to the actuator. Be
sure the actuator cannot suddenly
open or close the valve.
DUse bypass valves or completely
shut off the process to isolate the
valve from process pressure. Relieve
process pressure from both sides of
the valve. Drain the process media
from both sides of the valve.
DVent the power actuator loading
pressure and relieve any actuator
spring precompression.
DUse lock-out procedures to be
sure that the above measures stay in

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Instruction Manual
February 2010
10
effect while you work on the
equipment.
DThe valve packing box may
contain process fluids that are
pressurized, even when the valve has
been removed from the pipeline.
Process fluids may spray out under
pressure when removing the packing
hardware or packing rings, or when
loosening the packing box pipe plug.
DCheck with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
Shut off water and steam flow and vent all system
pressure before breaking any pressure boundaries.
WARNING
Residual system pressure may be
released during the following steps if
the system was improperly isolated or
vented.
Use extreme care to prevent personal
injury while loosening any fasteners in
the pressure boundary.
Removal of Valve Bonnet and Trim
1. Disconnect all external connections to the
positioner and actuator and remove the actuator
from the valve. Consult the actuator manufacturer’s
documentation for assistance in actuator removal.
2. Loosen and remove the hex nuts (key 68) along
with the packing follower (key 65). If possible,
remove packing rings (key 64) from the packing box.
3. Loosen bonnet stud nuts (key 55) using an even
pattern to avoid uneven expansion of the gaskets.
Remove the entire bonnet assembly (key 6), pulling
evenly in line with the valve stem (key 23) centerline.
Uneven bonnet removal can result in galling or
bending of the valve stem. If difficulty is encountered
removing the bonnet, check the bonnet for alignment
and straighten the bonnet before making further
attempts to remove it from the valve body.
Figure 6. Fisher AF Nozzle Cross Section
STEM
SPRING
NUT
PIN
WATER INJECTION HOLES
PLUG
BODY
A7191 / IL
CAUTION
The bonnet must be handled with care
while being removed from the body.
Damage to the bonnet can result in
gasket leakage while the valve is in
service.
Protect the bonnet by placing it on
clean cloth or wood while the valve is
disassembled.
4. Dislodge any remaining packing (key 64) from the
packing box and discard. Remove the packing box
ring (key 63) from the bottom of the packing box.
Inspect all parts; packing box ring (key 63), packing
follower (key 65), valve stem (key 23), hex nuts
(key 68) and studs (key 69) for signs of wear.
Replace parts that are damaged or show excessive
wear.
5. Inspect the bonnet guiding surfaces and gasket
mating surfaces. Light damage on the guiding
surface may be repaired with an emery cloth or other
suitable material. Damage to the gasket mating
surface may require bonnet replacement to avoid
leakage.
6. Remove the plug assembly (key 22, 23, and 53)
as a single unit by grasping the valve stem (key 23)
and pulling the assembly from the body cavity. The
plug assembly contains sensitive guiding and
sealing surfaces on its outside diameter and care
must be taken in its handling. Protect the bonnet by
placing it on clean cloth or wood while the valve is
disassembled.

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Table 3. Recommended Bonnet Stud and Nozzle Body
Stud Torque
BOLT SIZE THREADS
PER INCH
RECOMMENDED BOLT
TORQUE(1)
Inch NSm LbfSft
5/8 11 170 125
3/4 10 272 200
7/8 9 394 290
1 8 550 405
1-1/8 8 746 550
1-1/4 8 990 730
1-3/8 8 1329 980
1-1/2 8 1750 1290
1-5/8 8 2238 1650
1-3/4 8 2807 2070
1-7/8 8 3471 2560
2 8 4244 3130
2-1/4 8 6088 4490
1. Torques for lubricated studs with heavy hex nuts.
Table 4. Recommended Packing Nut Torque
STEM
DIAMETER
ASME
PRESSURE
RATING
MAXIMUM
TORQUE
MINIMUM
TORQUE
Inch NSm LbfSft NSm LbfSft
1-1/4
CL300
CL600
CL900
CL1500
CL2500
49
67
83
102
122
36
49
61
75
90
33
45
56
68
82
24
33
41
50
60
2
CL300
CL600
CL900
CL1500
CL2500
65
91
120
147
170
48
67
88
108
125
59
83
109
133
156
43
61
80
98
115
7. Remove the cage (key 21) from the valve body.
Remove and discard two (2) cage gaskets (key 43).
Reference figure 10 for guidance in performing this
disassembly. The cage contains sensitive guiding
surfaces on its outside diameter and care must be
taken during handling. Protect the bonnet by placing
it on clean cloth or wood while the valve is
disassembled.
8. Clean and inspect the guiding and sealing
surfaces of the plug assembly. For balanced plug
designs, inspect the piston ring (key 45) and
Bore Seal ring (key 46) for signs of excess wear or
damage and replace if necessary. The piston ring is
a two piece design with an outer seal ring and an
inner expander ring. The outer ring diameter should
be expanded beyond the diameter of the plug in its
free state. It can be shifted within its groove to
inspect for uneven wear around its circumference.
The piston ring should require some compression
when installing the plug into the cage. Lack of
required compression indicates that the piston ring
has worn or relaxed and should be replaced. Vertical
marks in the axial orientation also indicate wear that
requires replacement of the ring. The Bore Seal ring
has a C-shaped cross section with the open portion
of the C-shape facing the stem side of the plug. Any
uneven marks around the circumference of the ring
or any flattening of the ring shape at its outside
diameter are indications of wear and require
replacement. Contact your Emerson Process
Management sales office for Bore Seal ring
replacement.
9. Clean and inspect the inside diameter surfaces of
the cage. The entire length of the cage inside
diameter is either a sealing and/or guiding surface
and any measurable wear requires that the cage be
replaced.
10. The seat ring remains retained inside the valve
body. Clean and inspect the 60 degree seating
surface. Any detectable damage around the
circumference of the seating surface is an indication
of wear and requires reconditioning to ensure
seating performance. Contact your Emerson
Process Management sales office for specific
instructions on reconditioning the seating surface.
11. Remove all used gaskets and foreign material
from the interior of the valve and from the inlet and
outlet openings. Remove any foreign material that
may be in the valve body or trim. Inspect all valve
body guiding and sealing surfaces for any signs of
wear.
Visual Inspection
Visually inspect the interior of the valve for abnormal
wear, signs of erosion, or scoring if the valve has
been in service. All scores and scratches should be
removed by grinding or filing to remove any
interference of the clearance zones between the
internal bores and the mating parts. The affected
area should be sanded with 100 grit or finer paper.
Do not attempt to completely remove the score, only
the interference should be removed and sanded.
The gasket surfaces of the valve body and bonnet
should be inspected to verify that they are not
damaged and are free of imbedded gasket material.

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Removal and Replacement of Nozzles
1. Loosen and remove the nozzle flange stud nuts
(key 58).
2. Remove the nozzle flange stud washers (key 59)
and nozzle body flange (key 20).
3. Remove the nozzle sleeve (key 37) with attached
spray nozzle (key 30).
4. Remove the nozzle sleeve gasket (key 47) and
nozzle flange gasket (key 48).
5. Cut the tackweld holding the spray nozzle
(key 30) in the nozzle sleeve with a grinder or other
suitable tool. Liberally apply a penetrant type thread
lubricant and allow to soak prior to unscrewing the
nozzle from the nozzle sleeve (key 37).
6. Replace the spray nozzle and tackweld with
ER410 or other suitable welding rod. Maintain low
heat input to prevent distortion of the nozzle.
7. Reinstall using reverse order of the disassembly.
Use a high temperature lithium grease on the fitting
parts to aid in future disassembly. Torque nozzle
flange nuts as indicated in table 3.
8. If the old nozzles are to be inspected and/or
cleaned for reuse refer to figure 6 for guidance. All
nozzle parts should slide easily and smoothly
together. Discard any nozzles that appear marginally
operational. Do not attempt to disassemble the AF
style nozzles by removing the pin.
WARNING
Avoid personal injury or property
damage due to valve failure or
improper performance. Ensure valve
interior surfaces are sufficiently clean
and free of dirt as described in the
following procedure.
Valve Assembly
1. Cleaning--Make certain that all interior surfaces
of the valve body and bonnet (including the packing
box) are clean and free of dirt, including the inlet and
outlet openings. All surfaces of the valve interior that
receive mating parts should be given special
attention when cleaning. All sliding fit and gasket
sealing surfaces should be coated with a
copper-based high temperature anti-seize lubricant
prior to reassembly. Refer to figure 10 for reference.
2. Install one cage gasket (key 43) into the groove
in the valve body. If the valve has a horizontal stem
orientation, ensure that the gasket remains in the
groove and does get pinched during cage
installation.
3. Insert the lubricated cage (key 21) into the valve
body. Note that the cage must extend to and engage
with the seat ring. If there is any question regarding
the proper seating of the cage inside the valve body,
the following measurements can be taken for
confirmation. Measure the thickness of the cage
flange at its largest diameter. Measure the depth of
the mating counterbore where the cage flange
engages into the valve body. When assembled with
a new cage gasket, the resulting depth from the top
of the valve body to the top of the cage flange
should be the difference in these two measured
valves, minus an additional 0.045 to allow for the
uncompressed gasket. Lubricate the inside of the
cage as completely as possible.
4. The plug assembly includes a plug (key 22), stem
(key 23), retainer (key 25), piston ring (key 45) and
Bore Seal ring (key 46). Lubricate the plug assembly
at all raised outside diameter surfaces and lubricate
the piston ring and Bore Seal ring.
5. Orient the Bore Seal for correct sealing action
based on the process fluid flow direction through the
valve. The open interior of the Bore Seal must face
up in a valve with flow-up construction (figure 7).
6. Place the Bore Seal plug seal over the top of the
valve plug. The retainer will help guide the Bore Seal
down onto the plug. Do not force the Bore Seal over
the plug (figure 8).
7. An installation tool must be inserted into the Bore
Seal prior to using the retainer to guide it down the
plug.
8. Apply a suitable high-temperature lubricant to the
threads on the plug. Then, place the Bore Seal
retainer onto the plug and tighten the retainer using
an appropriate tool such as a strap wrench.

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Instruction Manual
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Figure 7. FlowUp Fisher Bore Seal Construction
FLOWUP
PISTON RING
RETAINER
CAGE
BORE SEAL
PLUG
SEATING AREA
Figure 8. Retainer Guiding Fisher Bore Seal Onto the Plug
PISTON RING
RETAINER
BORE SEAL
PLUG
BORE SEAL
INSTALLATION
TOOL
9. Remove the retainer and then the installation
tool. Place the Bore Seal retainer back onto the plug
and tighten the retainer using an appropriate tool
such as a strap wrench.
10. Using an appropriate tool such as a center
punch, stake the threads on top of the plug in one
place to secure the Bore Seal retainer.
11. Install the lubricated plug assembly into the
cage. The piston ring should require some radial
compression to collapse into the cage diameter. Do
not use a metallic tool to create this piston ring
compression as this could damage the outer sealing
diameter of the ring. The plug should slide into the
cage smoothly with little effort until the Bore Seal
ring reaches its mating cage diameter. The extra
load required to seat the Bore Seal trim seal will be
applied during actuator set up.
12. Install the second cage gasket (key 43) over the
cage boss where it will be self-centering for the
mating bonnet groove.
13. Apply appropriate high-temperature anti-seize
lubricant to the bonnet studs (key 54) and screw
them into the valve body. Back the studs out 1/2 to 1
turns after bottoming the stud in the valve body.
14. Lubricate the bonnet locating surfaces and
carefully install the bonnet (key 6). Use care to avoid
bending the stem.
15. Install bonnet stud washers (key 52) and nuts
(key 55) and hand tighten.
16. Tighten the bonnet nuts (key 55) in a uniform,
multistage cross pattern. Monitor the distance
between the bonnet and body and keep it even to
ensure that the bonnet is being torqued evenly. It is
recommended that torquing be performed in a
minimum of four torque levels until the final torque
level is achieved. You may need to torque multiple
times at each torque level to ensure that the bonnet
is torqued evenly. Required torque can be found in
table 3, Recommended Bonnet Stud and Nozzle
Body Stud Torque. After final torquing, ensure there
is an even gap for the entire circumference of the
body-bonnet joint.
17. After the bonnet has been torqued to the
required level, check the plug movement to ensure
that the plug still moves freely.
18. Recheck cleanliness of the packing box. Insert
the packing box ring (key 63) over the stem and into
the packing box. Measure the depth of the packing
box before and after ring insertion to be certain that
it has traveled to the bottom of the packing box.
Insert packing rings (key 64), after lubricating with
high temperature grease, into the packing box and
staggering the gaps on adjacent rings. The packing
follower (key 65) can be used to ensure that each
packing ring is pushed down before installing the
next packing ring.

TBX Valve
Instruction Manual
February 2010
14
GE22109-A
A
B
C
D
E
F
G
H
Figure 9. Bore Seal Installation Tool
Table 5. Bore Seal Installation Tool Dimensions
VALVE
PORT
SIZE,
INCH
Dimensions, Inches (See Figure 9) Tool Part
Number
A B C D E F G H
3.4375 (1) n/a
4.28 (1) n/a
4.70 4.77 4.35 4.454.47 4.674.65 0.10 1.10 0.32 R.06 GE18267X012
5.375 5.49 5.07 5.175.19 5.395.37 0.10 0.10 0.32 R.06 GE22109X012
6.25 6.34 5.92 6.026.04 6.246.22 0.10 0.10 0.32 R.06 GE18266X012
7.00 7.11 6.69 6.796.81 7.016.99 0.09 0.10 0.32 R.06 GE18264X012
7.62 7.76 7.34 7.447.46 7.667.64 0.10 0.10 0.32 R.06 GE18263X012
8.00 (1) n/a
9.20 9.39 8.97 9.079.09 9.299.27 0.10 0.10 0.32 R.06 GE17916X012
10.00 10.12 9.7 9.809.82 10.0210.00 0.10 0.10 0.32 R.06 GE17914X012
11.00 (1) n/a
11.20 11.35 10.93 11.01511.025 11.26511.255 0.10 0.10 0.32 R.07 GE17905X012
13.75 (1) n/a
14.75 14.84 14.42414.416 14.51614.536 14.73614.716 0.1 0.1 0.32 R.05 GE34073X012
16.70 (1) n/a
18.25 (1) n/a
19.9375 (1) n/a
1. For sizes,contact your Emerson Process Management sales office.

TBX Valve
Instruction Manual
February 2010
15
Table 6. Fisher TBX Troubleshooting Guide
Problem Possible Solution
Stem packing is leaking Tighten stem packing nuts
Stem packing is leaking after tightening stem packing nuts Replace worn parts and repack as needed
Actuator cannot open valve
Check actuator calibration
Check for overtightening of the packing nuts by following the packing
torque table
Actuator action is “sticky”
Check for alignment between actuator and valve
Check positioner calibration
Check plug, cage, stem and/or packing follower for wear
Temperature setpoint is not reached
Check water source availability and pressure
Check nozzles for plugging
Make sure that setpoint temperature is not below steam saturation
temperature
Check to ensure that spraywater control valve has not reached full travel
Temperature is below setpoint
Check and reset temperature control instrument loop
Check nozzles for fouling/poor spray pattern – clean/replace
Check temperature sensor location – relocate per guidelines
Temperature oscillates around setpoint Tune control system parameters
Temperature setpoint may be too close to steam saturation temperature
Water in steam line Check that steam traps are functioning properly
Review piping configuration for downstream tees and elbows
Water in steam line when steam line isolated Check for leakage of spraywater control valve
Noise and vibration are higher than expected Review piping configuration and installation
Bonnet joint is leaking Inspect body/bonnet mating surfaces, replace cage gaskets. Ensure
bonnet bolts are properly torqued
19. After all packing rings are installed, thoroughly
lubricate the studs (key 69) and insert the packing
follower (key 65) and the packing flange (key 66).
Tighten the hex nuts (key 68) tight enough to block
leakage but not so tight that stem travel is hindered.
Consult table 4, Recommended Packing Nut Torque
for recommended torque levels. Evenly tighten the
nuts to the maximum level, then loosen and
retighten to the minimum torque level. After
operating, further tightening may be required to
prevent leakage.
20. Install the actuator on the valve in accordance
with manufacturer’s standard procedure. Note from
Step 4 of the Valve Assembly section of this manual
that the plug assembly will require an additional load
and travel to seat the Bore Seal ring. Refer to
figure 11 for details. After calibration of the actuator,
the valve should be ready to return to service.
Troubleshooting
Table 6 is intended as a basic first line
troubleshooting guide. Contact your Emerson
Process Management sales office for assistance if
you are unable to resolve your field operation
problem.

TBX Valve
Instruction Manual
February 2010
16
Parts Ordering
Each TBX valve is assigned a serial number that can
be found on the bonnet flange. Refer to the serial
number when contacting your Emerson Process
Management sales office for technical assistance.
When ordering replacement parts, refer to the serial
number and key numbers for each part required.
The key numbers in the Parts List and the assembly
drawing in figure 10 can be used to help in part
identification.
WARNING
Use only genuine Fisher replacement
parts. Components that are not
supplied by Emerson Process
Management should not, under any
circumstances, be used in any Fisher
valve, because they may void your
warranty, might adversely affect the
performance of the valve, and could
cause personal injury and property
damage.
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use, or maintenance of any
product. Responsibility for the
selection, use, and maintenance of any
product remains with the purchaser
and end user.
Note
Contact your Emerson Process Management sales
office for part numbers.
Parts List
Key Description
1 Body
SA 05
SA182 Grade F22
SA182 Grade F91
6 Bonnet
SA105
SA182 Grade F22
SA182 Grade F91
Key Description
20 Nozzle Body Flange
SA105
SA182 Grade F22
SA182 Grade F91
21* Cage
SA182 Grade F22 / Nitrided
22* Plug
SA182 Grade F22 / Alloy 6
A515 Grade 616
23* Stem
SA 479 Type S20910
A515 Grade 616
24 Seat
SA 105 / Alloy 6
SA182 Grade F22 / Alloy 6
SA182 Grade F91 / Alloy 6
25 Plug Retainer
SA182 Grade F22 / Alloy 6
30* Spray Nozzle
S41000 SST
37 Nozzle Sleeve, F22
43* Cage Gasket, N06600/HT / Graphite, 2 req’d
45 Piston Ring, Alloy 6/N07750
46* Bore Seal ring, N07718
47* Nozzle Sleeve Gasket, N06600 / Graphite
48* Nozzle Flange Gasket, N06600 / Graphite
52 Bonnet Stud Washer, Plated Steel
53* Stem Pin, 316 SST
54 Bonnet Stud
SA 193 Grade B7
SA 193 Grade B16
SB 637 N07718
55 Bonnet Stud Nut
SA 194 Grade 2H
SA 194 Grade 7
SB 637 N07718
57 Nozzle Flange Stud
SA 193 Grade B7
SA 193 Grade B16
SB 637 N07718
58 Nozzle Flange Stud Nut
SA 194 Grade 2H
SA 194 Grade 7
SB 637 N07718
59 Nozzle Flange Washer
Plated Steel
60 Actuator Stud
SA 193 Grade B7
SA 193 Grade B16
61 Actuator Stud Nut
SA 194 Grade 2H
SA 194 Grade 7
63* Packing Box Ring
316 stainless steel
64* Packing Set
Graphite / Flexible Graphite
65* Packing Follower
316 stainless steel
66* Packing Flange
Steel
68* Hex Nut
316 Stainless Steel
69* Stud
SA 193 Grade B8M
*Recommended spare parts

TBX Valve
Instruction Manual
February 2010
17
Figure 10. Fisher TBX Assembly
GE12463-A

TBX Valve
Instruction Manual
February 2010
18
Figure 11. Fisher TBX Bore Seal Trim in Closed Position
PLUG DIAMETER AT
BORE SEAL TRIM INSTALLATION
CAGE BORE
AT PLUG GUIDE
CAGE BORE AT
BORE SEAL RING SEAT
CAGE BORE
AT PISTON RING
CLOSED POSITION
OPEN POSITION
BORE SEAL TRIM CONFIGURATION
TBX
PORT SIZE
E0921-IL

TBX Valve
Instruction Manual
February 2010
19

TBX Valve
Instruction Manual
February 2010
20
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
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. Neither Emerson, Emerson Process Management, 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.
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