Emerson Fisher TBX User manual

www.Fisher.com
FisherrTBX Steam Conditioning Valve
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Educational Services 4.........................
Installation 4..................................
Maintenance 7.................................
Servicing 8...................................
Removal of Valve Bonnet and Trim 8.............
Nozzle Maintenance and Replacement 10.........
Valve Assembly 13............................
Parts Ordering 22...............................
Parts List 22...................................
Figure 1. Fisher TBX Steam Conditioning Valve
X0165
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, kettles, equipment drives, plant heating, and other
loads requiring dependable and accurate control of steam pressure and temperature.
Instruction Manual
D103172X012
TBX Valve
May 2014

Instruction Manual
D103172X012
TBX Valve
May 2014
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Table 1. Specifications for Standard Designs (Physical Specifications)
End Connection Sizes(1)
Valve Inlet: NPS 4 through NPS 24
Valve Outlet: NPS 8 through NPS 36
End Connection Types
JASME Buttweld (all sizes)
JASME Raised Face Flanges (all sizes)
Valve Configuration
Angle Pattern (flow up or flow down)
Valve Body Ratings(2)
ASME: CL150 - CL2500
Bonnet Type
Bolted
Shutoff Classifications per ANSI/FCI 70-2 and IEC
60534-4
Standard: Class V
Optional: Class IV
Flow Characteristics(3)
Whisper Trim™ III: Linear
WhisperFlo™ (flow up only): Linear
Flow Direction
Whisper Trim III: Flow up or down
WhisperFlo: Flow up
Construction Materials
Body/Bonnet
JSA105 Carbon Steel
JSA182GradeF22(21/4 Cr1Mo)
JSA182GradeF91(9Cr1MoV)
Bonnet Bolting
JSA193 Grade B7
JSA193 Grade B16
JN07718
Seat Ring
Welded Seat Ring (flow up only)
JSA105 Carbon Steel with Alloy 6
JSA182GradeF22(21/4 Cr1Mo)withAlloy6
JSA182GradeF91(9Cr1MoV) with Alloy 6
Bolted Seat Ring
JSA182GradeF22(21/4 Cr1Mo)withAlloy6
and N07718 Bolting
JN06625 with Alloy 6 and N07718 Bolting
Plug:
Control Plug
JSA182GradeF22(21/4 Cr1Mo)withAlloy6
Guiding Surfaces
JSA182GradeF91(9Cr1MoV) with Alloy 6
Guiding Surfaces
Stem
JSA479 Type S20910
JN07718
Cage:
Control Cage
JSA182GradeF22(21/4 Cr1Mo)Nitrided
JSA182GradeF91(9Cr1MoV) Nitrided
Lower Cage (flow down only)
JSA182GradeF22(21/4 Cr1Mo)Nitrided
Piston Rings
JAlloy 6B with N07750 Expander
Bore Seal
JN07718
Gaskets
JBonnet: N07750/Graphite
JAll Others: N06600/Graphite
Packing
JGraphite/Flexible Graphite
Nozzles
JS41000 SST
1. Standard end connection sizes. Alternate inlet and outlet sizes available for each valve body size to match piping requirements.
2. Not all valve sizes are available in all valve body ratings.
3. Contact your Emerson Process Management sales office for other flow characteristics.

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TBX Valve
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The TBX Steam Conditioning Valve (figure 1) is designed to handle the most severe applications in today's cycling
powerplantsaswellasprovideprecisepressureandtemperature 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 or flow down design providing the ultimate combination of performance and maintainability. The
flow down TBX incorporates Emerson Process Management’s low noise Whisper Trim III technology. The flow up TBX
incorporates the same Whisper Trim III technology as the flow down design, but can also be outfitted with WhisperFlo
Trim technology. The simplified trim configuration is thermally compensated to handle the rapid changes in
temperatures expected during a turbine trip.
Water atomization and vaporization are key elements in any steam conditioning application. The TBX incorporates a
spraywater manifold consisting 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. 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.
Figure 2. Typical Fisher TBX Installation
KEY:
DSPL = DOWNSTREAM STRAIGHT PIPE LENGTH
PI = PROPORTIONAL INTEGRAL CONTROLLER
PSL = PRESSURE SENSOR LENGTH
PT = PRESSURE TRANSMITTER
TE = TEMPERATURE SENSOR ELEMENT
TSL = TEMPERATURE SENSOR LENGTH
USPL = UPSTREAM STRAIGHT PIPE LENGTH
USPL
TSL
PSL
DSPL

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TBX Valve
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Educational Services
For information on available courses for the Fisher TBX steam conditioning valve, as well as a variety of other products,
contact:
Emerson Process Management
Educational Services - Registration
P.O. Box 190
Marshalltown, IA 50158-2823
Phone: [phone] or 641-754-3771
FAX: [phone]
e-mail: [e-mail]
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, 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.
Check that the TBX valve is properly orientated with respect to the flow direction of the valve (either flow up or flow
down). Incorrect installation can result in damage to the valve and poor performance.
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).

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TBX Valve
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WARNING
Do not lift the valve by its actuator yoke or cooler manifold piping. Personal injury or damage to equipment could occur if
the valve is improperly lifted into place.
If the TBX is equipped with buttweld ends, the valve body must be supported using a lifting sling or other method that does
not place a load or force onto the finished surface of the buttweld ends. The TBX does not have a stable resting condition.
The valve inlet and outlet must be fully supported until fully welded (buttweld end connections) or bolted (flanged end
connections) into the piping.
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.A100meshstrainershouldbeinstalledinthewaterlineasclosetotheTBXvalveaspossible.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.
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 2. Consult the TBX cooler sizing sheet for the required distance
of straight pipe. This is unique for each application and is supplied by Emerson Process Management.

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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 cooler sizing sheet provided with the unit for this temperature sensor 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 installation is illustrated in figure 2. A pressure transmitter senses the pressure downstream (or upstream
in backpressure control applications). 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 Blowdown 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. Review Fisher instruction manuals, TBX Blowout Fixture
(D103206X012) and Fisher Blowdown Fixture (D103207X012) prior to use.
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,
replacethepacking(key64).BesuretoproperlyisolatetheTBXvalvepriortodisassemblyofvalveorpacking.
WARNING
Packing box hex nuts should not be tightened when the valve is under pressure or at elevated temperature. Failure to
properly tighten the packing box nuts could lead to personal injury or equipment damage.

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Maintenance
It is recommended that diagnostic tests be preformed on the valve 3-6 months prior to scheduled maintenance
shutdowns. Complete valve disassembly is recommended if tests performed on the valve indicate leakage, sticking, or
substandard operation. If diagnostics indicate normal valve operation, complete disassembly and inspection of the
TBX is recommended during every other regularly scheduled outage or after 24-36 months, whichever comes first.
Table 2 identifies the recommended inspection tips and diagnostics that can be performed with corresponding repair
and replacement information.
Table 2. Inspection Summary
Key Part Description Inspection Tips and Diagnostics Repair Replacement
1Valve Body Inspect for erosion, thermal fatigue, and other
damage.
Consult your local Emerson Service Center for a recommendation on
necessary weld repair or replacement if damage exists.
6Bonnet
Inspect gasket surfaces for damage that could indicate
gasket leakage. Inspect packing box to ensure no
galling, scoring, or particulate is present.
If damage exists consult your local Emerson Service Center for a
recommendation on necessary weld repair or replacement.
20 Nozzle Body Flange Inspect gasket surfaces for damage that could indicate
gasket leakage when spray nozzles are replaced. Replacement Only As needed
21 Cage
Inspect cage bore for excessive wear, galling damage,
particulate damage, and flow passage damage or
clogging.
Consult your local Emerson Service
Center for a recommendation on
necessary repair or replacement if
damage exists.
As needed for optimal
performance
22 Plug
Inspect for seat erosion, excessive wear, galling
damage, and particulate damage, paying close
attention to the seating and guiding surfaces.
Re-cutting/machining of seating
surfaces can be performed by your
local Emerson Service Center.
As needed for optimal
performance
23, 53 Stem and Stem Pin Inspect stem for dings, scoring, and galling. Inspect
valve stem connection for tightness.
Valve stem connection can be
repaired by your local Emerson
Service Center.
As needed
24 Seat Inspect for seat erosion, particulate damage, galling,
and proper bolt torque (if applicable, refer to table 5).
Re-cutting/machining of seating
surfaces can be performed by your
local Emerson Service Center.
As needed to maintain proper
shutoff
25 Plug Retainer Inspect for excessive wear, galling, and other damage. Repair can be performed by your
local Emerson Service Center. As needed
30 Spray Nozzle Refer to Nozzle Maintenance Section. Replacement every 24-36 months
for optimal performance
37 Nozzle Sleeve Inspect for particulate or magnetite buildup when
spray nozzles are replaced. Clean if necessary. As needed
43, 47, 48,
75 All Gaskets Every valve disassembly requires replacement of gaskets. Replacement Only Every valve disassembly
45 Piston Ring
Inspect for particulate buildup, scoring, and excessive
wear. Ensure piston ring is free to expand and contract
in the groove.
Replacement Only As needed
46 Bore Seal Ring Inspect for excessive wear, galling, signs of leakage,
and other damage. Replacement Only Every 36 months for optimal performance
63 Packing Box Ring Inspect for scoring, galling, and other damage. Replacement Only As needed
64 Packing Set Every valve disassembly requires replacement of the
packing set. Replacement Only Every valve disassembly
65 Packing Follower Inspect for scoring, galling, and other damage. Replacement Only As needed
66 Packing Flange Inspect for scoring, galling, and other damage. Replacement Only As needed

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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 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 set
(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 in removing the bonnet, check
the bonnet for alignment and straighten the bonnet before making further attempts to remove it from the valve
body.

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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, 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 (flow up and flow down: keys 22, 23, 25, 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 plug by placing it on
clean cloth or wood while the valve is disassembled.
7. Flow Up Construction only: If the TBX has a magnetite catcher (key 79) and excess magnetite buildup is present,
remove the magnetite catcher located in the bore of the plug (key 22) by cutting the tackwelds at the base of the
part and unscrewing from the plug. Clean as necessary to remove magnetite buildup.
8. Removethecage(key21)fromthevalvebody.Removeanddiscardtwo(2)cagegaskets(key43).Reference
figures 13, 12, and 11 for guidance in performing this disassembly. The cage contains sensitive guiding surfaces on
its inside and outside diameter and care must be taken during handling. Protect the cage by placing it on clean cloth
or wood while the valve is disassembled.
9. ANSI/FCI 70-2 Class V constructions only: Clean and inspect the guiding and sealing surfaces of the plug assembly.
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.
TheBoreSealringhasaC-shapedcrosssection.TheopenportionoftheC-shapefacesthestemsideoftheplugon
flow up valves. The open portion of the C-shape faces theseatingsurfaceoftheplugforflowdownvalves.See
figure 5 for proper orientation. 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.
ANSI/FCI 70-2 Class IV constructions only: Clean and inspect the guiding and sealing surfaces of the plug assembly.
Inspect the two piston rings (key 45) for signs of 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.
10. Cleanandinspectthecageboreforexcessivewear.Theentirelengthofthecageboreiseitherasealingand/or
guiding surface and any measurable wear requires that the cage be replaced.
11. Welded seat rings remain retained inside the valve body. Clean and inspect the 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. If the TBX has a bolted seat ring, remove the cap screws (key 76) and discard the

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gasket(s) (key 75) that sit between the valve body and seat ring. Inspect cap screws for damage and excessive wear;
replace as necessary.
12. Flow down construction only. Remove the lower cage (key 78); reference figure 11 for guidance in performing this
disassembly. The cage contains sensitive guiding surfaces on its inside and outside diameter and care must be taken
during handling. Protect the cage by placing it on clean cloth or wood while the valve is disassembled.
13. Remove all used gaskets and foreign material from the interior of the valve and from the inlet and outlet openings.
Removeanyforeignmaterialthatmaybeinthevalvebodyortrim.Inspectallvalvebodyguidingandsealing
surfaces for any signs of wear.
14. If the valve has been in service, visually inspect the interior of the valve for abnormal wear, erosion, or thermal
fatigue. 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. All scratches should be removed by grinding or filing to remove any
interference of the clearance zones between the internal bores and the mating parts. All signs of thermal fatigue
should be carefully evaluated to determine if repair or replacement is necessary. Your local Emerson Service Center
can help determine the severity of damage, if present, and recommend a course of action.
Figure 3. Fisher AF Nozzle Cross Section
A7191-2D
SPRAY HEAD
SWIRL CHAMBER
WATER INJECTION HOLES
(COMPOUND ANGLED ORIFICES)
SPRING
PLUG STEM
SPRING CASING
PIN
TRAVEL MEASUREMENT
SPRAY
ANNULUS
SPRAY PATTERN
Nozzle Maintenance and Replacement
When subjected to normal operating conditions, it is possible that wear, blockage, and/or weld fatigue will occur to
the valve body or nozzle assembly. During regularly scheduled maintenance, visually inspect the nozzles for wear and
blockage. Your local Emerson Service Center can help to determine the extent of weld fatigue and the correct course
of action. Poor performing nozzles or nozzle failure is typically caused by wear, corrosion, erosion, and/or blockage.
The following instruction will help to determine if any of these problems are present and provide a recommended
course of action for each.
Note
For optimal performance, nozzles should be inspected every 18-24 months and replaced every 24-36 months.

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1. OPTIONAL: Figure 3 shows the spray pattern that will need to be present during operation of the AF nozzles. Testing
can be performed by attaching the existing or an alternate, similar pressure, water line to the spray water input
connection. If this spray pattern is not present, replacement is recommended.
2. Loosen and remove the nozzle body flange stud nuts (key 58) and washers (key 59). Then, remove the nozzle body
flange(key20).Inspectthenozzlebodyflangegasketsurfacesfordamage.Ifdamageispresentreplacementis
necessary.
3. Removethenozzlesleeve(key37)withattachedspraynozzle(key30),nozzlesleevegasket(key47),andnozzle
body flange gasket (key 48). Inspect the nozzle sleeve for particulate or magnetite buildup and clean if necessary.
4. Inspect the spray annulus surface, the area between the plug stem and spray head, for excessive wear,
erosion/corrosion, or blockage due to particulate. Wear is defined as any nicks, cuts, or gouges on or immediately
around the spray annulus. Erosion/corrosion is defined as any form of rust or erosion of the metal on the plug stem
or spray head. Blockages are defined when small particulate becomes trapped between the plug stem and spray
head or spring casing and spray head. Replacement of the nozzle is recommended if any of the preceding problems
are present.
5. Grind off the tack welds holding the nozzle (key 30) in place. Apply a penetrant type thread lubricant and allow to
soak prior to unscrewing the nozzle. Using the provided flatsonthesideofthesprayhead,unscrewthenozzlefrom
thenozzlesleeve(key37).
6. Grind excess tack weld material off both thenozzle(key30)andnozzlesleeve(key37).
7. In the absence of external forces, the nozzle must be fully closed. If the nozzle is not fully closed, it will need to be
replaced.
8. Inspect the water injection holes for reduced or non-circular shape due to erosion. Every hole must be the same size
and shape. If any are oversized or non-circular in shape, the nozzle will need to be replaced.
9. Inspect the interior of the water injection holes for buildup of particulate or magnetite. Nozzle replacement will be
needed is any buildup is present.
Note
Complete disassembly of the nozzle is strongly discouraged, due to individual spare parts not being available.
10. OPTIONAL: Tofurthercheckthenozzleforbuildupofparticulateormagnetite,thenozzlecanbedisassembled.If
disassembled, take great care not to damage the sharp edges of the spray annulus on the plug stem and the
sprayhead, as this will greatly affect the spray pattern. Do not compress a removed spring by hand or with a tool, as
compression beyond its normal operating range will damage the spring.
To disassemble the nozzle, first remove the pin using a small drill bit as a punch, and unscrew the spring casing from
the plug stem. The nozzle can be reassembled by following a reverse order of disassembly, taking care to line the
hole in the plug stem up with the hole in the spring casing, then pressing the pin back into place through the two
parts.
11. The internal spring may relax over time and not provide the tensile force required to shut off and control flow. If
thenozzlespringissuspectedofbeingtoorelaxed,thenthenozzleshouldbereplaced.
12. The travel can be determined by using a feeler gauge to measure the distance between the spray head near the
water injection ports to the side of the spring casing, as outlined in figure 3. This measurement must match the
factory set plug stem travel for the corresponding nozzle type as shown in table 3.

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Table3.AFNozzleSpecifications
NOZZLE TYPE PLUG TRAVEL, INCHES
AF7 0.014
AF10 0.028
AF14 0.029
AF17 0.034
AF20 0.036
AF24 0.042
AF28 0.048
AF32 0.056
AF35 0.065
AF40 0.063
AF44 0.069
13. Inspect nozzle threads for damage and clean if needed. If damage is present, nozzle replacement will be
necessary.
14. Rinseboththenozzle(key30)andnozzlesleeve(key37)toremoveparticulate.
15. Screw nozzle into the nozzle sleeve (key 37) and tighten just until the spray head is flat and tight against the nozzle
sleeve.
16. Tackweldasmallpieceofweldingwireontothenozzlesleeve (key 37) next to either of the spray head flats to
prevent rotation during service; refer to figure 4. Maintain low heat to prevent distortion of the nozzle.
Figure 4. Spray Nozzle Tack Weld Location
AF NOZZLE BODY
WIRE, TACK WELD ON BOTH ENDS
GA26453
17. Reassemble in the following order: nozzle sleeve gasket (key 47), nozzle body flange gasket (key 48), spray
nozzle/sleeve assembly (key 30 and 37), nozzle body flange (key 20), washers (key 59), and stud nuts (key 58). It is
required to replace the nozzle sleeve gasket (key 47) and nozzle body flange gasket (key 48) with new gaskets each
timethenozzlebodyflange(key20)isremoved.
18. Lubricate the nozzle body studs (key 57) and all surfaces the studs and nuts come into contact with. Tighten the
nozzle body flange nuts (key 58) in a uniform, multistage cross pattern. You may need to torque multiple times at
eachtorquetoensurethatthenozzlebodyflangeistorqued evenly. Required nozzle body flange stud torque can
be found in table 4.
Note
Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy
comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.

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TBX Valve
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WARNING
Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or
assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the
serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design
or code limits intended for this particular service. Contact your Emerson Process Management representative immediately
if a discrepancy between actual parts and approved parts is suspected.
Table 4. Recommended Nozzle Body Flange Bolting Torque with Nickel Never-Seez Lubricant
BOLT SIZE THREADS PER INCH LUBRICATION RECOMMENDED BOLT TORQUE(1)
Inch NSmLbfSft
5/8 11
Nickel Never-Seez
163 120
3/4 10 258 190
7/8 9373 275
1 8 522 385
1-1/8 8712 525
1-1/4 8942 695
1-3/8 81268 935
1-1/2 81654 1220
1. Torques for lubricated studs with heavy hex nuts.
WARNING
Different lubricants can produce different required torque values. Failure to calculate correct torque values for different
lubricants than recommended can lead to personal injury and equipment damage.
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 surfaces should be coated with a copper-based high
temperature anti-seize lubricant prior to reassembly. Refer to figures 13, 12, and 11 for reference.
If the TBX has a bolted seat ring or is flow down orientation, proceed with steps 2 through 4; otherwise, proceed
directly to step 5.
2. Place one gasket (key 75) into the valve body. If the TBX is a flow up construction: Install the seat ring (key 24) onto
this gasket surface. If the TBX is a flow down construction: install the lower cage (key 78) onto the gasket surface,
ensuringtheboltholesinthecageflangearepositionedwiththeboltholesinthevalvebody.Thenplaceanother
gasket (key 75) onto the diameter of the lower cage, and install the seat ring (key 24) onto this second gasket
surface.

Instruction Manual
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TBX Valve
May 2014
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Note
Horizontal actuator only: TBX valves positioned in the process pipeline with a horizontal actuator/trim may require special
attention to ensure that the spiral wound gaskets are maintained in the proper location during the valve assembly procedures
without falling out of the gasket groove. Gasket manufacturer Flexitallic recommends spray adhesive 3M #77 Super Spray
Adhesive to temporarily hold gaskets in place until they are fully contained by the TBX valve body and trim components. It should
be noted that spiral wound gasket manufacturers other than Flexitallic may recommend different special gasket positioning
techniques. To use the adhesive with Flexitallic gaskets, lightly spray the gasket groove that the gasket will be installed in. Also
lightly spray one side of the spiral wound gasket that will be contacting the previously coated gasket groove. Let the spray
adhesive set for one minute and then lightly press the spiral wound gasket into the gasket groove.
Other Considerations: Ensure the spiral wound gasket is located in the correct location when contact is made. Trying to remove
the gasket after contact will damage the gasket by pulling out or removing the soft filler/facing material. If the gasket is incorrectly
positioned after applying the spray adhesive it must be removed and discarded. The gasket groove will then need to be cleaned
and a new gasket will need to be installed.
3. Lubricate the seat ring cap screws (key 76) and all surfaces that contact the screws, including the valve body and
seat ring.
4. Torque the cap screws in a crisscross pattern, using no more than 1/4 of the specified torque as indicated in table 5.
Repeat the crisscross pattern, working up to the specified torque in 1/4 increments until the final torque is
achieved. Wait a minimum of 1 minute to allow for gasket/screw relaxation and recheck the torque, adjusting as
necessary.
Table5.TBX(FlowUpandFlowDown)BoltedSeatRing Torque with Nickel Never-Seez Lubricant
CAP SCREW SIZE THREADS PER INCH LUBRICATION RECOMMENDED BOLT TORQUE
Inch N•m lbf•ft
3/8 16
Nickel Never-Seez
41 30
1/2 13 91 67
5/8 11 163 120
WARNING
Different lubricants can produce different required torque values. Failure to calculate correct torque values for different
lubricants than recommended can lead to personal injury and equipment damage.
5. 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 not get pinched during cage installation.
Note
Horizontal actuator only: TBX valves positioned in the process pipeline with a horizontal actuator/trim may require special
attention to ensure that the spiral wound gaskets are maintained in the proper location during the valve assembly procedures
without falling out of the gasket groove. Gasket manufacturer Flexitallic recommends spray adhesive 3M #77 Super Spray
Adhesive to temporarily hold gaskets in place until they are fully contained by the TBX valve body and trim components. It should
be noted that spiral wound gasket manufacturers other than Flexitallic may recommend different special gasket positioning
techniques. To use the adhesive with Flexitallic gaskets, lightly spray the gasket groove that the gasket will be installed in. Also
lightly spray one side of the spiral wound gasket that will be contacting the previously coated gasket groove. Let the spray
adhesive set for one minute and then lightly press the spiral wound gasket into the gasket groove.
Other Considerations: Ensure the spiral wound gasket is located in the correct location when contact is made. Trying to remove
the gasket after contact will damage the gasket by pulling out or removing the soft filler/facing material. If the gasket is incorrectly
positioned after applying the spray adhesive it must be removed and discarded. The gasket groove will then need to be cleaned
and a new gasket will need to be installed.

Instruction Manual
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6. Insertthelubricatedcage(key21)intothevalvebody.Ensurethelowercagediameterslidesovertheoutside
diameter of the seat ring. If there is any question regarding the proper seating of the cage inside the valve body, the
followingmeasurementscanbetakenforconfirmation.Measurethethicknessofthecageflangeatitslargest
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 inches to allow for the
uncompressed gasket. Lubricate the inside of the cage as completely as possible.
7. Flow Up Construction only: If applicable, install the magnetite catcher (key 79) by threading into the bore of the
plug (key 22). Apply four tackwelds equally spaced along the circumference of the plug to prevent rotation during
service.
If the TBX is an ANSI/FCI 702 Class V construction, proceed with steps 815; otherwise proceed directly to step 16 for
Class IV constructions.
8. The plug assembly includes a plug (key 22), stem (key 23), stem pin (key 53), 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(s) and Bore Seal ring.
9. Orient the Bore Seal for correct sealing action based on the process fluid flow direction through the valve, refer to
figure 5 to complete this step.
Figure 5. Fisher Bore Seal Construction
FLOW-UP
PISTON RING
RETAINER
CAGE
BORE SEAL
PLUG
SEATING AREA
FLOW-DOWN
PISTON RING
RETAINER
CAGE
BORE SEAL
PLUG
SEATING AREA
10. Place the Bore Seal plug seal over the top of the valve plug. The retainer will help guide the Bore Seal down onto
theplug.DonotforcetheBoreSealovertheplug(figure6).
11. For the Flowup design, the Bore Seal installation tool (figure 10) must be inserted into the Bore Seal prior to using
the retainer to guide it down the plug.
12. 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.
13. If applicable, 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.
14. 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.

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Figure 6. Retainer Guiding Fisher Bore Seal Onto the Plug
PISTON RING
RETAINER
BORE SEAL
PLUG
BORE SEAL
INSTALLATION TOOL
FLOW-UP FLOW-DOWN
PISTON RING
RETAINER
BORE SEAL
PLUG
15. Install the lubricated plug assembly into the cage. The piston ring(s) 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(s) should slide into the cage(s) smoothly with little effort
until the Bore Seal ring reaches its mating cage diameter. The extra load required to seattheBoreSealtrimsealwill
be applied during actuator set up.
16. ANSI/FCI 702 Class IV constructions only: The plug assembly includes a plug (key 22), stem (key 23), stem pin (key
53), and two piston rings (key 45). Lubricate the plug assembly at all raised outside diameter surfaces and lubricate
the piston rings. Install the lubricated plug assembly intothecage.Thepistonringsshouldrequiresomeradial
compression to collapse into the cage diameter(s). 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(s) should slide into the cage(s)
smoothly with little effort. Refer to figures 7 and 9.
17. Install the second cage gasket (key 43) over the cage boss where it will be self-centering for the mating bonnet
groove.
18. 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.
19. Lubricatethebonnetlocatingsurfacesandcarefullyinstallthebonnet(key6).Usecaretoavoidbendingthestem.
20. Install bonnet stud washers (key 52) and nuts (key 55) and hand tighten.
Note
Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy
comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
WARNING
Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or
assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the
serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design
or code limits intended for this particular service. Contact your Emerson Process Management representative immediately
if a discrepancy between actual parts and approved parts is suspected.

Instruction Manual
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TBX Valve
May 2014
17
21. 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 6. After final torquing, ensure there is an even gap and that the metal-to-metal contact between the valve
body and bonnet is achieved around the entire circumference of the bodybonnet joint.
Table 6. Recommended Body/Bonnet Bolting Torque with Nickel Never-Seez Lubricant
BOLT SIZE THREADS PER INCH LUBRICATION RECOMMENDED BOLT TORQUE(1)
Inch NSmLbfSft
1 8
Nickel Never-Seez
522 385
1-1/8 8712 525
1-1/4 8942 695
1-3/8 81268 935
1-1/2 81654 1220
1-5/8 82129 1570
1-3/4 82671 1970
1-7/8 83308 2440
2 8 4027 2970
2-1/4 85776 4260
1. Torques for lubricated studs with heavy hex nuts.
WARNING
Different lubricants can produce different required torque values. Failure to calculate correct torque values for different
lubricants than recommended can lead to personal injury and equipment damage.
22. After the body/bonnet studs have been torqued to the required level, check the plug movement to ensure that
the plug still moves freely.
23. 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.
24. 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 7, 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.
25. Install the actuator on the valve in accordance with manufacturer's standard procedure. If this is an ANSI/FCI 702
Class V construction, the plug assembly will require an additional load and travel to seat the Bore Seal ring (refer to
figures 8 and 9 for details). After calibration of the actuator, the valve shouldbereadytoreturntoservice.

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Table 7. Recommended Packing Nut Torque with Anti-Seize Lubricant
STEM DIAMETER ASME PRESSURE
RATING
MAXIMUM TORQUE MINIMUM TORQUE
Inch NSmLbfSft NSmLbfSft
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
WARNING
Different lubricants can produce different required torque values. Failure to calculate correct torque values for different
lubricants than recommended can lead to personal injury and equipment damage.
Figure 7. Fisher TBX Flow Up Class IV Construction
CLASS IV SHUTOFF
DOUBLE PISTON RING CONFIGURATION
PORT SIZE

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Figure 8. Fisher TBX Flow Up Class V Construction
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

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Figure 9. Fisher TBX Flow Down Construction
CLASS IV DOUBLE
PISTON RING CONFIGURATION
CLASS V BORE SEAL
TRIM CONFIGURATION
CLOSED POSITION
OPEN POSITION