Emerson Fisher EU User manual

www.Fisher.com
Fisher™EU and EW Valves NPS 12 through 24 x 20
(Obsolete)
Contents
Introduction 1.................................
Safety Instructions 1............................
Specifications 2................................
Inspection and Maintenance Schedules 2...........
Parts Ordering 2................................
Installation 3..................................
Maintenance 4.................................
Latest Published Instruction Manual 5..............
Introduction
The product covered in this document is no longer in production. This document, which includes the latest published
version of the instruction manual, is made available to provide updates of newer safety procedures. Be sure to follow
the safety procedures in this supplement as well as the specific instructions in the included instruction manual.
Part numbers in the included instruction manual should not be relied on to order replacement parts. For replacement
parts, contact your Emerson sales office.
For more than 30 years, Fisher products have been manufactured with asbestos‐free components. The included
manual might mention asbestos containing parts. Since 1988, any gasket or packing which may have contained some
asbestos, has been replaced by a suitable non‐asbestos material. Replacement parts in other materials are available
from your sales office.
Safety Instructions
Please read these safety warnings, cautions, and instructions carefully before using the product.
These instructions cannot cover every installation and situation. Do not install, operate, or maintain this product
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 of the contents of
this manual, including all safety cautions and warnings. If you have any questions about these instructions, contact
your Emerson sales office before proceeding.
Instruction Manual
D102010X012
EU and EW Series Valves
February 2020

Instruction Manual
D102010X012
EU and EW Series Valves
February 2020
2
Specifications
This product was intended for a specific range of service conditions‐‐pressure, pressure drop, process and ambient
temperature, temperature variations, process fluid, and possibly other specifications. Do not expose the product to
service conditions or variables other than those for which the product was intended. If you are not sure what these
conditions or variables are, contact your Emerson sales office for assistance. Provide the product serial number and all
other pertinent information that you have available.
Inspection and Maintenance Schedules
All products must be inspected periodically and maintained as needed. The schedule for inspection can only be
determined based on the severity of your service conditions. Your installation might also be subject to inspection
schedules set by applicable governmental codes and regulations, industry standards, company standards, or plant
standards.
In order to avoid increasing dust explosion risk, periodically clean dust deposits from all equipment.
When equipment is installed in a hazardous area location (potentially explosive atmosphere), prevent sparks by proper
tool selection and avoiding other types of impact energy.
Parts Ordering
Whenever ordering parts for older products, always specify the serial number of the product and provide all other
pertinent information that you can, such as product size, part material, age of the product, and general service
conditions. If you have modified the product since it was originally purchased, include that information with your
request.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson should not, under any
circumstances, be used in any Fisher product, because they may void your warranty, might adversely affect the
performance of the product, and could cause personal injury and property damage.

Instruction Manual
D102010X012
EU and EW Series Valves
February 2020
3
Installation
WARNING
D Personal injury or equipment damage caused by sudden release of pressure or bursting of parts may result if the valve
assembly is installed where service conditions could exceed the limits given in the applicable product literature, the
limits on the appropriate nameplates, or the mating pipe flange rating. Use pressure‐relieving devices as required by
government or relevant industry codes and good engineering practices. If you cannot determine the ratings and limits
for this product, contact your Emerson sales office before proceeding.
D To avoid personal injury, always wear protective gloves, clothing, and eyewear when performing any installation
operations.
D To avoid personal injury or property damage, use proper lifting and rigging practices while lifting, installing or
removing the valve assembly. Be sure to use lifting and rigging equipment properly sized and selected for the weight
and configuration of the valve assembly or component being lifted.
D Personal injury could result from packing leakage. Valve packing was tightened before shipment; however, the packing
might require some readjustment to meet specific service conditions.
D Many rotary shaft valves are not necessarily grounded to the pipeline when installed in a flammable, hazardous, oxygen
service, or explosive atmospheres. An explosion is possible, due to the discharge of static electricity from the valve
components. To avoid personal injury or property damage, make sure that the valve is grounded to the pipeline before
placing the control valve assembly into service. Use and maintain alternate shaft‐to‐body bonding, such as a
shaft‐to‐body bonding strap assembly.
D Rotary shaft valves are designed and intended for installation between flanges. Personal injury or property damage may
result from improper installation. To avoid personal injury or property damage caused by the sudden release of
pressure or bursting of parts, do not use or install rotary shaft valves (including single lug constructions) for dead‐end
service.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
D If installing into an existing application, also refer to the WARNING in the Maintenance section.
D When ordered, the valve configuration and construction materials were selected to meet particular pressure,
temperature, pressure drop, and controlled fluid conditions. Responsibility for the safety of process media and
compatibility of valve materials with process media rests solely with the purchaser and end‐user. To avoid possible
personal injury and because some valve/trim material combinations are limited in their pressure drop and temperature
ranges, do not apply any other conditions to the valve without first contacting your Emerson sales office.
CAUTION
D Ensure that the valve and adjacent pipelines are free of foreign material that could damage the valve seating surfaces.

Instruction Manual
D102010X012
EU and EW Series Valves
February 2020
4
Maintenance
WARNING
Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before performing
any maintenance operations:
D Always wear protective gloves, clothing, and eyewear.
D Disconnect 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.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure.
D Do not remove the actuator while the valve is pressurized.
D Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve.
D Vent the pneumatic actuator loading pressure and relieve any actuator spring pre‐compression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The valve packing box might contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids might spray out under pressure when removing the packing hardware or packing rings, or when
loosening the packing box pipe plug. Cautiously remove parts so that fluid escapes slowly and safely.
D Many valve parts that are moving can injure you by pinching, cutting, or shearing. To help prevent such injury, stay
clear of any moving part.
D Never apply pressure to a partially assembled valve.
D To avoid personal injury or property damage caused by uncontrolled movement of a valve bonnet, loosen the bonnet by
following these instructions: Do not remove a stuck bonnet by pulling on it with equipment that can stretch or store
energy in any other manner. The sudden release of stored energy can cause uncontrolled movement of the bonnet.
Loosen bonnet nuts approximately 3 mm (0.125 inch). Then loosen the body‐to‐bonnet gasketed joint by either rocking
the bonnet or prying between the bonnet and body. Work the prying tool around the bonnet until the bonnet loosens.
If no fluid leaks from the joint, proceed with bonnet removal.
D As you remove parts, such as valve shafts, other parts, such as disks can fall from the valve body or suddenly move to
another position in the valve. To avoid injury from falling or moving parts, be sure to support parts and be sure they are
in a stable position as you disassemble the valve.
D Personal injury could result from packing leakage. Do not scratch the drive shaft or packing box wall while removing
packing parts.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
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.
E2020 Fisher Controls International LLC. All rights reserved.
Fisher, FIELDVUE, Cavitrol, WhisperFlo, Whisper Trim, and ENVIRO-SEAL are marks 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.
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.

www.Fisher.com
Fisher™EU and EW Valves NPS 12 through 24 x 20
Contents
Introduction 1.................................
Scope of Manual 1.............................
Educational Services 2.........................
Description 3.................................
Specifications 4...............................
Installation 4..................................
Maintenance 5................................
Packing Lubrication 8..........................
Packing Maintenance 8.........................
Replacing Packing 9........................
Trim Maintenance 12..........................
Trim Removal 12..........................
Lapping Seating Surfaces 13.................
Valve Plug Maintenance 13..................
Trim Replacement 15......................
Retrofit: Installing Bore Seal Trim 18..............
Replacement of Installed Bore Seal Trim 20........
Trim Removal (Bore Seal Constructions) 20....
Lapping Metal Seats
(Bore Seal Constructions) 21..............
Remachining Metal Seats
(Bore Seal Constructions) 21..............
Trim Replacement
(Bore Seal Constructions) 22..............
Parts Ordering 23...............................
Parts List 24...................................
Figure 1. NPS 24 x 20 Fisher EWT Valve with Piston
Actuator and FIELDVUE™ DVC6200 Digital Valve
Controller
W9156‐2
Introduction
Scope of Manual
This instruction manual includes installation and maintenance information for NPS 12 through 24 x 20 CL150 through
600 Fisher EUD, EUT, EUT‐2, EWD, EWT, and EWT‐2 valves, and the NPS 12 and 20 x 16 CL900 EUD, EUT-2, EWD, and
EWT‐2 valves. (Size designations such as NPS 20 x 16 are end connection size x nominal trim size.)
Refer to separate manuals for instructions covering the actuator and accessories.
Do not install, operate, or maintain an EUD, EUT, EUT‐2, EWD, EWT, or EWT‐2 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 sales office or
Local Business Partner before proceeding.
Instruction Manual
D102010X012
EU and EW Series Valves
July 2017

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
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Table 1. Specifications
Valve Sizes
EUT, EUT‐2, and EUD: NPS J12, J16, J 20,
and J16x20
EWT, EWT‐2, and EWD: NPS J20x16, J24x16, and
J24x20 valves (size designations are end connection
size x nominal trim size)
End Connection Styles
Flanged: CL150, 300, 600, and 900(1) raised‐face or
ring‐type joint flanges per ASME B16.5
Buttwelding: All ASME B16.25 schedules through
schedule 120 that are compatible with the
ASME B16.34 valve body rating
For other end connections, contact your Emerson
sales office or Local Business Partner for details
Maximum Inlet Pressure and Temperature(2)
Flanged: Consistent with CL150, 300, 600, and 900(1)
pressure/temperature ratings per ASME B16.34
Buttwelding: Consistent with CL600 per ASME B16.34
Also see the Installation section
Shutoff Classifications per ANSI/FCI 70‐2 and IEC
60534‐4
EUT, EUT‐2, EWT, and EWT‐2 with Metal Seats
Standard (for all trims except 2‐Stage CavitroltTrim):
Class IV
Standard (for 2‐Stage Cavitrol Trim): Class V
Optional (for all trims except 2‐Stage Cavitrol Trim):
Class V
EUT, EUT‐2, EWT, and EWT‐2 with Soft Metal Seats:
Class V
Shutoff Classifications per ANSI/FCI 70‐2 and IEC
60534‐4 (continued)
EUD and EWD with Metal Seats
Standard: Class III
Optional: Class IV and V (Bore Seal)
Flow Characteristics
Standard Cages: JLinear or Jequal percentage
WhisperFlot, Whisper TrimtIII, and Cavitrol III
Cages: Linear
Flow Direction
Standard and Cavitrol III Cages: Down
WhisperFlo and Whisper Trim III Cages: Up
Port Diameters
NPS 12 Trim: J279.4 mm (11.00 inches),
NPS 16 Trim: J355.6 mm (14 inches), J374.7 mm
(14.75 inches), and J412.8 mm (16.25 inches)
NPS 20 Trim: J431.8 mm (17 inches), J463.6 mm
(18.25 inches) and J501.7 mm (19.75 inches)
Valve Plug Travel
102 through 432 mm (4 to 17 inches).
Contact your Emerson sales office or Local Business
Partner for further details if needed
Yoke Boss and Stem Diameters
J127 mm (5‐inch) or J127 mm (5H‐inch)
diameter yoke boss, each with 31.8 mm
(1‐1/4 inch) diameter valve stem
Approximate Weights
See table 6
1. CL900 end connections are available only for NPS 16 and 20 x 16 EUD, EUT‐2, EWD, or EWT‐2 valves.
2. Do not exceed the pressure or temperature limits in this manual, on the equipment nameplate, and any applicable code limitations.
Educational Services
For information on available courses for the Fisher EU and EW Series, NPS 12 through 24x20 valves, as well as a variety
of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: [phone] or 1-800-338-8158
E-mail: [email protected]
emerson.com/fishervalvetraining

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
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Table 2. WhisperFlo Trim Specifications
Trim Material and Selection
J316 Stainless Steel w/ hardfacing
J410 Stainless Steel, hardened
JOthers per application
Temperature Capability
JEUT and EWT: -73 to 316_C (-100 to 600_F)
JEUT‐2 and EWT‐2: -73 to 232_C (-100 to 450_F)
JEUD and EWD: -29 to 538_C (-20 to 1000_F)
JOthers per application
Maximum Pressure Drops
As shown in this bulletin. Also see Bulletin 80.3:010
WhisperFlo Aerodynamic Attenuation Trims
WhisperFlo Aerodynamic Trim Pressure Ratings(1,2)
Up to 1500 psi drop
Velocity Limits
WhisperFlo trim is designed for 0.3 MACH as an
inherent outlet velocity limit. This velocity limit of 0.3
MACH may be exceeded for demanding applications
with adequate care and corrections in aerodynamic
noise prediction - consult your Emerson Automation
Solutions sales office
Flow Characteristic
Linear (restricted linear cages and special,
characterized cages are available‐‐consult your
Emerson Automation Solutions sales office)
Rangeability
65:1
High rangeability in excess of 250:1 is available in
some constructions. Contact your Emerson sales
office or Local Business Partner for details
Flow Direction
Standard: Flow up‐‐through the seat ring and out
through the cage orifices
Noise Attenuation
Approximately -40 dBA maximum depending on the
nP/P1ratio per IEC 60534‐8‐3 calculation procedure
1. Other pressures on application.
2. The pressure/temperature limits in this instruction manual and in any applicable standard limitations should not be exceeded.
Description
All valve types covered in this manual (EUD, EUT, EUT‐2, EWD, EWT, and EWT‐2 valves) can be used for either
throttling or on‐off control of a wide variety of liquids and gasses. They are single‐port, globe‐style valves with cage
guiding, balanced valve plugs, and a push‐down‐to‐close action. EUT, EWT, and EWT‐2 valves have a spring‐loaded
PTFE seal between the plug and cage; the EUD and EWD valves have two graphite piston rings between the plug and
cage. See figure 5, 6, or 7 for seal details.
EUT‐2 and EWT‐2 valves have a seat ring threaded into the cage. A spring‐loaded PTFE seal is used to seal between the
seat ring and the valve body. Standard seating is metal‐to‐metal, but optional soft metal seats are also available. A
typical EUT‐2 or EWT‐2 valve is shown in figure 5.
EUD and EWD valves have a seat ring bolted into the valve body with cap screws. Seating is metal‐to‐metal. A typical
EUD or EWD valve is shown in figure 6.
EUT and EWT valves have a seat ring bolted into the valve body with cap screws. These valves have metal‐to‐metal
seating and use PEEK anti‐extrusion rings in the plug seal arrangement to increase the upper temperature limit of the
seal to 316_C (600_F). A typical EUT valve is shown in figure 7.
Cavitrol III, Whisper Trim III, and WhisperFlo trim cages are available in these valves. Cavitrol trim helps eliminate
cavitation damage in liquid service in a properly sized valve and Whisper Trim III and WhisperFlo trim cages help
attenuate aerodynamic noise in gas service.
Fisher WhisperFlo trim represents state of the art solutions for applications that demand ultimate aerodynamic noise
attenuation.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
4
Control valves with WhisperFlo cages provide additional aerodynamic noise attenuation in very demanding vapor or
gas applications with high‐pressure drops. A WhisperFlo cage with an appropriately sized valve body is designed to
reduce the noise level up to -40 dBA. For special applications, -50 dBA attenuation can be achieved.
Specifications
Typical specifications for these valves are shown in tables 1 and 2. Some of the specifications for a given valve
assembly as it comes from the factory appear on the actuator nameplate if the valve is part of a complete control valve
assembly.
Installation
WARNING
To avoid personal injury or property damage resulting from the sudden release of pressure, do not install the valve
assembly where service conditions could exceed the limits given in this manual or on the appropriate nameplates. Use
pressure‐relieving devices as required by government or accepted industry codes and good engineering practices.
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
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
The valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop,
and controlled fluid conditions. Because some valve body/trim material combinations are limited in their pressure drop and
temperature range capabilities, do not apply any other conditions to the valve without first contacting your Emerson sales
office or Local Business Partner.
WARNING
If you are hoisting the valve, use nylon slings to protect the surfaces.
Carefully position the slings to prevent damage to the actuator tubing and any accessories. Also, take care to prevent
people from being injured in case the hoist or rigging slips unexpectedly. Refer to table 6 for valve assembly weights. It is
important to use adequately sized hoists and chains or slings to handle the valve.
1. Before installing the valve, inspect the valve and associated equipment for any damage and any foreign material.
2. Make certain that the valve body interior is clean, that pipelines are free of foreign material, and the valve is
oriented so that pipeline flow is in the same direction as the arrow on the side of the valve.
CAUTION
For long service life and more effective operation, the process liquid must be clean. If the valve being installed has a
Whisper Trim, WhisperFlo, or Cavitrol Trim cage with small internal flow passages, impurities or entrained solids in the

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
5
process liquid may cause irreparable erosion damage to the seating surfaces and may plug cage holes and passages,
causing cavitation damage. During valve installation or the plant cleaning cycle, install a strainer upstream from the valve
to help free pipelines of foreign material.
3. The control valve assembly may be installed in any orientation unless limited by seismic criteria. However, the
normal method is with the actuator vertical above the valve. Other positions may result in uneven valve plug and
cage wear and in improper operation. Support the actuator if it is not installed in the vertical position. For more
information, consult your Emerson sales office or Local Business Partner.
4. Use accepted piping and welding practices when installing the valve in the line. You can leave internal elastomeric
parts in place when welding. For flanged valves, use a suitable gasket between the valve and pipeline flanges.
CAUTION
Depending on valve body materials used, post weld heat treating might be required. If so, damage to internal elastomeric
and plastic parts, as well as internal metal parts is possible. Shrunk‐fit pieces and threaded connections might also loosen. If
post weld heat treating is to be performed, all trim parts should be removed. Contact your Emerson sales office or Local
Business Partner for additional information.
5. With a leak‐off bonnet construction, remove the 1/4 NPT pipe plugs (key 14, figure 4) from the bonnet to hook up
the leak‐off piping.
6. If continuous operation of the plant is required during inspection or maintenance of the valve, install a three‐valve
bypass around the control valve assembly.
7. If the actuator and valve are shipped separately, refer to the actuator mounting procedure in the appropriate
actuator instruction manual.
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however some
readjustment will be required to meet specific service conditions.
If the valve has ENVIRO‐SEALtlive‐loaded packing or HIGH‐SEAL ULF live‐loaded packing installed, this initial
re‐adjustment will probably not be required. See the Fisher instruction manuals titled ENVIRO‐SEAL Packing System for
Sliding‐Stem Valves (D101642X012) or HIGH‐SEAL ULF Live‐Loaded Packing System (D101453X012) (as appropriate)
for packing instructions.
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance
frequency depends on the severity of service conditions. This section includes instructions for packing lubrication,
packing maintenance, trim maintenance, lapping seating surfaces, and valve plug maintenance. All maintenance
operations may be performed with the valve in the line.
WARNING
Avoid personal injury from sudden release of process pressure. Before performing any maintenance operations:

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
6
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Disconnect 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.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
on both sides of the valve. Drain the process media from both sides of the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The 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.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, also shut off all pressure lines to the power
actuator, release all pressure from the actuator, and use lock‐out procedures to prevent injury while you work on
the equipment.
Figure 2. Lubricator and Lubricator/Isolating Valve
LUBRICATOR
LUBRICATOR/ISOLATING VALVE
10A9421‐A
AJ5428‐D
A0832‐2
31
31
Note
Whenever a gasket seal is disturbed by removing or shifting gasketed parts, a new gasket should be installed upon reassembly.
This is necessary to ensure a good gasket seal because the used gasket might not seal properly.
Note
If the valve has ENVIRO‐SEAL live‐loaded packing or HIGH‐SEAL ULF live‐loaded packing installed, see the Fisher instruction
manuals titled ENVIRO‐SEAL Packing System for Sliding‐Stem Valves (D101642X012) or HIGH‐SEAL ULF Live‐Loaded Packing
System (D101453X012) (as appropriate) for packing instructions.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
7
Figure 3. Typical Packing
B2398
PTFE V-RING SINGLE ARRANGEMENTS
FOR S31600 OR S17400 SST
METAL PACKING BOX PARTS
FOR ALL OTHER METAL PACKING
BOX PART MATERIALS
UPPER WIPER
(KEY 12)
UPPER WIPER
(KEY 12)
UPPER WIPER
(KEY 12)
UPPER WIPER
(KEY 12)
PACKING
FOLLOWER
(KEY 13)
PACKING
FOLLOWER
(KEY 13)
PACKING
FOLLOWER
(KEY 13)
PACKING
FOLLOWER
(KEY 13)
WASHER
(KEY 10)
SPRING
(KEY 8)
PACKING BOX
RING (KEY 11) PACKING BOX
RING (KEY 11)
PACKING BOX
RING (KEY 11)
PACKING BOX
RING (KEY 11)
FEMALE
ADAPTOR FEMALE
ADAPTOR
FEMALE
ADAPTOR (KEY 32)
PACKING RING PACKING RING
PACKING RING (KEY 7)
PACKING RING (KEY 7)
MALE
ADAPTOR
MALE
ADAPTOR
MALE
ADAPTOR (KEY 31)
LOWER WIPER
LOWER
WIPER
LOWER
WIPER
SPACER (KEY 8)
LANTERN
RING
(KEY 8)
LANTERN
RING
(KEY 8)
ASSEMBLY 1
(POSITIVE
PRESSURES)
ASSEMBLY 3
(POSITIVE
PRESSURES &
VACUUM)
ASSEMBLY 2
(VACUUM)
PTFE V-RING
DOUBLE ARRANGEMENTS
PTFE/COMPOSITION
ARRANGEMENT
31.8 mm
(1-1/4 INCH) STEM
31.8 mm
(1-1/4 INCH) STEM
NOTE:
PACKING SET (KEY 6) (2 REQUIRED FOR DOUBLE ARRANGEMENTS

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
8
Figure 3. Typical Packing (Continued)
A6060
PACKING BOX
RING (KEY 11)
DOUBLE ARRANGEMENT
31.8 mm
(1-1/4 INCH) STEM
NOTE:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS:
USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING
SINGLE ARRANGEMENT
GRAPHITE RIBBON/FILAMENT PACKING
31.8 mm
(1-1/4 INCH) STEM
PACKING BOX
RING (KEY 11)
LANTERN
RING (KEY 8)
LANTERN
RING (KEY 8)
GRAPHITE FILAMENT
PACKING RING (KEY 7)
GRAPHITE FILAMENT
PACKING RING (KEY 7)
GRAPHITE RIBBON
PACKING RING (KEY 7)
GRAPHITE RIBBON
PACKING RING (KEY 7)
PACKING
FOLLOWER
(KEY 13)
PACKING
FOLLOWER
(KEY 13)
Packing Lubrication
CAUTION
Do not lubricate graphite packing. Graphite packing is self-lubricated. Additional lubrication may result in slip-stick
movement of the valve.
If a lubricator or lubricator/isolating valve (figure 2) is provided for PTFE/composition or other packings that require
lubrication, it will be installed in place of the 1/4 NPT pipe plug (key 14, figure 4). Use a silicon‐base lubricant. To
operate the lubricator, turn the cap screw clockwise to force the lubricant into the packing box. The
lubricator/isolating valve operates the same way except the isolating valve must first be opened and then closed after
lubrication is completed.
Packing Maintenance
This procedure does not cover ENVIRO‐SEAL or HIGH‐SEAL packing; refer to separate manuals for instructions on those
packing types.
Key numbers are shown in figure 3 unless otherwise indicated.
For spring‐loaded single PTFE V‐ring packing, the spring (key 8) maintains a sealing force on the packing. If leakage is
noted around the packing follower (key 13), check to be sure the shoulder on the packing follower is touching the
bonnet. If the shoulder is not touching the bonnet, tighten the packing flange nuts (key 5, figure 4) until the shoulder
is against the bonnet. If leakage cannot be stopped in this manner, proceed to the Replacing Packing section.
If there is undesirable packing leakage with other than spring‐loaded packing, first try to limit the leakage and
establish a stem seal by tightening the packing flange nuts.
If the packing is relatively new and tight on the stem and if tightening the packing flange nuts does not stop the
leakage, it is possible that the valve stem is worn or nicked so that a seal cannot be made. The surface finish of a new

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
9
valve stem is critical for making a good packing seal. If the leakage comes from the outside diameter of the packing, it
is possible that the leakage is caused by nicks or scratches around the packing box wall. If performing any of the
following procedures, inspect the valve stem and packing box wall for nicks and scratches.
Replacing Packing
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, also shut off all pressure lines to the power
actuator, release all pressure from the actuator, and use lock‐out procedures to prevent injury while you work on
the equipment.
2. Remove any leak‐off piping from the bonnet. Disconnect the stem connector, and then remove the actuator from
the valve by unscrewing the hex nuts (key 26, figure 4).
3. Loosen the packing flange nuts (key 5, figure 4) so that the packing is not tight on the valve stem. Remove any
travel indicator parts and stem locknuts from the valve stem threads.
CAUTION
Avoid damage to the seating surfaces caused by the valve plug and stem assembly dropping from the bonnet after being
lifted part way out.
When lifting the bonnet (key 1, figure 4), either be sure that the valve plug and stem assembly remains in the valve and on
the seat or, temporarily install a valve stem locknut on the valve stem. This locknut will prevent the valve plug and stem
assembly from dropping out of the bonnet.
WARNING
To avoid personal injury or property damage caused by uncontrolled movement of the bonnet, loosen the bonnet by
following the instructions in the next step. Do not remove a stuck bonnet by pulling on it with equipment that can stretch
or store energy in any other manner. The sudden release of stored energy can cause uncontrolled movement of the bonnet.
If the cage sticks to the bonnet, proceed carefully with bonnet removal.
Note
The following step also provides additional assurance that the valve body fluid pressure has been relieved.
4. Hex nuts (key 16, figures 5 or 6) attach the bonnet to the valve body. Loosen these nuts or cap screws
approximately 3 mm (1/8 inch). Then loosen the body‐to‐bonnet gasketed joint by either rocking the bonnet or
prying between the bonnet and valve body. Work the prying tool around the bonnet until the bonnet loosens. If no
fluid leaks from the joint, remove the nuts completely and carefully lift the bonnet (key 1, figure 4).
5. Set the bonnet on a protective surface to prevent damage to the bonnet gasket surface.
6. Whenever the bonnet has been removed, replace the bonnet gasket and the cage gasket (keys 10 and 11, figures 5
and 6). Remove the bonnet gasket.
7. Lift the valve plug and stem assembly out of the valve body and set it on a protective surface. If the valve plug is to
be reused, protect the valve plug seating surface to prevent scratches.
8. Install screws or bolts into the tapped holes in the top of the cage assembly (key 3), and carefully lift it out of the
valve body. Remove the cage gasket (key 11).
9. If further trim maintenance is required, refer to the Trim Maintenance section.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
10
Figure 4. Typical Globe Valve Bonnet
CU4317
Table 3. Packing Flange Nut Torque for Packing Without a Spring
VALVE STEM
DIAMETER PRESSURE
RATING
GRAPHITE‐TYPE PACKING PTFE‐TYPE PACKING
Minimum Torque Maximum Torque Minimum Torque Maximum Torque
mm Inch NSm LbfSft NSm LbfSft NSm LbfSft NSm LbfSft
31.8 1‐1/4
CL150 & 300
CL600
CL900
33
45
56
24.3
33.2
41.3
49
67
83
36.1
49.4
61.2
16
21
27
11.8
15.5
19.9
25
33
41
18.4
24.3
30.2
Table 4. Body‐to‐Bonnet Bolt Torque
VALVE SIZE,
NPS PRESSURE RATING BOLTING TORQUE(1)
NSm LbfSft
12, 16x12
16
16
20 x 16, 24 x 16
20 x 16
20, 24 x 20
CL150 - 600
CL150 ‐ 600
CL900
CL150 ‐ 600
CL900
CL150 ‐ 600
1750
2800
1750
2800
1750
4240
1290
2070
1290
2070
1290
3130
1. For B7, B7M, B16, and 660 bolting materials. For other materials, contact your Emerson sales office or Local Business Partner for torque values.
CAUTION
To prevent damage to the valve cavity, packing box wall, and packing surfaces, observe the instructions in the next three
steps.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
11
10. Cover the opening in the valve body to protect the gasket surface and prevent foreign material from getting into
the valve cavity.
11. Remove the packing flange nuts, packing flange, upper wiper, and packing follower (keys 5, 3, 12, and 13, figure
4). Carefully push out all the remaining packing parts from the valve side of the bonnet using a rounded rod or other
tool that will not scratch the packing box wall. Clean the packing box and the metal packing parts.
12. Inspect the valve stem threads and packing box surfaces for any sharp edges that might cut the packing. Scratches
or burrs could cause packing box leakage or damage to the new packing. If the surface condition cannot be
improved by light sanding or honing with a tool similar to an automotive brake‐cylinder hone, replace the damaged
parts.
13. Remove the covering protecting the valve cavity, and install a new cage gasket (key 11, figure 5 and 6), making
sure the gasket seating surfaces are clean and smooth.
14. Re‐install the trim parts by following the Trim Replacement section. Install a new bonnet gasket (key 10, figure 5
and 6).
Note
Proper performance of the tightening procedures in step 15 compresses the bonnet and cage gaskets (keys 10 and 11, figure 5
and 6) enough to seal the body‐to‐bonnet joint.
The bolting procedures in step 15 include‐‐but are not limited to‐‐ensuring that bolting threads are clean and evenly tightening
the hex nuts onto the studs in a crisscross pattern. Because of the boltup characteristics of the gaskets, tightening one nut may
loosen an adjacent nut. Repeat the crisscross tightening pattern several times until each nut is tight and the body‐to‐bonnet seal is
made.
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. Install studs with the material grade and manufacturer's identification
mark visible. Contact your Emerson representative immediately if a discrepancy between actual parts and approved parts
is suspected.
15. Lubricate the stud bolts (key 15, figure 5 and 6) with anti‐seize lubricant, slide the bonnet over the stem and onto
the bolts, and secure with the stud bolt nuts (key 16, figure 5 and 6), using accepted bolting procedures during
tightening so that the body‐to‐bonnet joint will withstand test pressures and application service conditions. Refer
to table 4 for bolting torque guidelines.
16. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 3. Place a
smooth‐edged pipe over the valve stem, and gently tap each soft packing part into the packing box one piece at a
time, being sure that air is not trapped between adjacent soft parts.
17. Slide the packing follower, upper wiper, and packing flange (keys 13, 12, and 3, figure 4) into position. Lubricate
the packing flange studs (key 4, figure 4) and the faces of the packing flange nuts (key 5, figure 4). Replace the
packing flange nuts.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
12
18. For spring‐loaded PTFE V‐ring packing, tighten the packing flange nuts until the shoulder on the packing follower
(key 13, figure 4) contacts the bonnet.
For graphite packing, tighten the packing flange nuts to the maximum recommended torque shown in table 3. Then,
loosen the packing flange nuts and retighten them to the recommended minimum torque shown in table 3.
For other packing types, tighten the packing flange nuts alternately in small, equal increments until one of the nuts
reaches the minimum recommended torque shown in table 3. Then, tighten the remaining flange nut until the
packing flange (key 3, figure 4) is at a 90‐degree angle to the valve stem.
19. Mount the actuator on the valve assembly, and reconnect the actuator and valve stem according to the procedure
in the appropriate actuator instruction manual. Check for leakage around the packing follower when the valve is
being put into service. Retighten the packing flange nuts as required.
Trim Maintenance
Trim Removal
Except where indicated, key numbers in this section are shown in figure 5 for EUT‐2 and EWT‐2 valves and in figure 6
for EUD and EWD valves.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, also shut off all pressure lines to the power
actuator, release all pressure from the actuator, and use lock‐out procedures to prevent injury while you work on
the equipment.
2. Remove the actuator and the bonnet according to steps 2 through 5 of the Replacing Packing Section.
CAUTION
Use care to avoid damaging gasket surfaces.
The surface finish of the valve stem (key 7) is critical for making a good packing seal. The inside surface of the cage or cage
assembly (key 3) is critical for smooth operation of the valve plug and for making a seal with the seal ring (key 28). The
seating surfaces of the valve plug (key 2) and seat ring (key 9) are critical for proper shutoff. Assume all these parts are in
good condition, and protect them accordingly unless inspection reveals otherwise.
3. Packing parts can be removed if desired. Replace these parts as described in the Packing Replacement section.
4. Lift the valve plug and stem assembly out of the valve body and set it on a protective surface. If the valve plug is to
be reused, protect the valve plug seating surface to prevent scratches.
5. Install screws or bolts into the tapped holes in the top of the cage assembly (key 3), and carefully lift it out of the
valve body. Remove the gaskets (keys 10 and 11).
6. Proceed as appropriate:
For EUT‐2 or EWT‐2 valves (figure 5), the valve has a seat ring seal ring (key 6). Inspect this seal ring, and remove it if
replacement is necessary. The seat ring is screwed into the cage and secured with two tack welds, one on each side of
the cage. Remove the tack welds by grinding or filing them off.
D For all sizes except NPS 12 and 16x12, there are slots cut in the seat ring. Insert a bar through the slots and turn the
seat ring out of the cage.
D For NPS 12 and 16x12, there are two 3/8 inch UNC tapped holes in the bottom of the seat ring. Screw cap screws
into these holes. Use a bar to pry against the cap screws and turn the seat ring out of the cage.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
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For EUD, EWD, EUT, and EWT valves (figure 6), unscrew the seat ring cap screws (key 49). Install screws or bolts into
the tapped holes in the top of the seat ring (key 9) and carefully lift it out of the valve body. Remove the gasket
(key 13).
7. Inspect parts for wear or damage that would prevent proper operation of the valve. Replace or repair trim parts
according to the following Lapping Seating Surfaces or Valve Plug Maintenance procedures as appropriate.
Lapping Seating Surfaces
A certain amount of leakage should be expected with metal‐to‐metal seating in any valve body. If the leakage
becomes excessive, however, the condition of the seating surfaces of the valve plug and seat ring can be improved by
lapping. (Deep nicks should be machined out rather than ground out.) Use a good quality lapping compound of a
mixture of 280 to 600‐grit. Apply the compound to the bottom of the valve plug.
Assemble the valve to the extent that the cage or cage assembly is in place and the bonnet is bolted to the valve body.
A simple handle can be made from a piece of strap iron locked to the valve plug stem with nuts. Rotate the handle
alternately in each direction to lap the seats. After lapping, remove the bonnet, and clean the seat surfaces.
Completely assemble the valve as described in the Trim Replacement section, and test the valve for shutoff. Repeat
the lapping procedure if leakage is still excessive.
Valve Plug Maintenance
Except where indicated, key numbers in this section are shown in figure 5 for EUT‐2 and EWT‐2 valves and in figure 6
for EUD and EWD valves.
CAUTION
For valves with a PTFE seal ring (figure 5, 6, or 7), if replacing the valve plug seal ring (key 28), be careful not to scratch the
surfaces of the ring groove in the valve plug or any of the surfaces of the replacement ring, or the replacement ring may not
seal properly.
1. Remove the valve plug (key 2) according to the Disassembly section.
2. For seal‐ring constructions, carefully pry or cut the seal ring (key 28, figure 5, 6, or 7) from its groove in the plug.
Install the replacement spring‐loaded seal ring with the open side facing the top or bottom of the valve plug,
depending on flow direction. The open side of the seal ring should face up (toward the actuator) in flow‐up
installations and down in flow‐down installations.
To install the seal ring, first lubricate it with general‐purpose, lithium‐base lubricant. Then gently stretch the seal ring
and work it over the top edge of the valve plug. Give the PTFE material in the seal ring time to cold flow during the
stretching procedure. Avoid jerking sharply on the ring. Stretching the seal ring over the valve plug might make it
seem loose when it is in the groove, but it will shrink to its original size after you have installed the plug into the cage.
3. For piston‐ring constructions, each of the piston rings (key 28, figure 5, 6, or 7) is in two halves; remove the halves.
Each new graphite piston ring is furnished as a complete ring, and each must be broken into two approximately equal
portions. Do this by placing the ring on edge on a smooth, hard surface and striking the ring squarely with a hammer.
Be sure to match the broken ends when installing the ring sections in the valve plug grooves.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
14
Figure 5. Typical Fisher EUT‐2 or EWT‐2 Valve
E1488
SEAL RING FOR
EUT‐2 AND EWT‐2 VALVE PLUGS
CAGE
(KEY 3)
VALVE
PLUG
(KEY 2)
SEAL
RING
(KEY 28)
NOTE:
SEAL RING OPENING MUST FACE SEAT RING FOR FLOW DOWN APPLICATIONS AND MUST FACE ACTUATOR FOR FLOW UP APPLICATIONS
1
VIEW A
A
CAUTION
Never reuse an old stem (key 7) with a new valve plug. Using an old stem with a new plug requires drilling a new pin hole in
the stem. This weakens the stem and may cause it to fail in service. However, a used valve plug may be reused with a new
stem.
4. To replace the valve stem (key 7), drill out the pin (key 8) and unscrew the stem from the valve plug.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
15
5. Screw the new stem tightly into the valve plug. Drill through the stem, using a 1/4‐inch diameter drill for the 31.8
mm (1‐1/4 inch) stem diameter used in this valve. Use the hole in the valve plug as a guide. Remove any chips or
burrs, and drive in a new pin to lock the assembly.
Trim Replacement
Except where indicated, key numbers are shown in figure 5 and 6.
1. Proceed as appropriate:
For EUT‐2 or EWT‐2 valves:
For all sizes except NPS 12 and 16x12, turn the seat ring (key 9) into the cage (key 3) with a bar inserted through the seat
ring slots.
For NPS 12 and 16x12, insert cap screws into the two 3/8 inch UNC tapped holes in the bottom of the seat ring (key 9).
Use a bar to pry against the cap screws and turn the seat ring (key 9) into the cage (key 3).
For all sizes, tack weld the seat ring to the cage using minimal heat. Two welds, 6 mm (1/4‐inch) long and 180 degrees
apart, are required. Install the seat ring seal ring (key 6) so that its open side faces the valve stem for Cavitrol III trim
and flow‐down standard cages. Reverse the seal ring for Whisper Trim III, WhisperFlo, and flow‐up standard cages.
Lubricate the seal ring with a general‐purpose, lithium‐base lubricant, and place it over the bottom end of the seat
ring. Start the ring in the groove on one side of the seat ring, and gently work it over the seat ring.
For EUD and EWD valves (figure 6) and EUT and EWT valves (figure 7), install the seat ring gasket (key 13).
Temporarily install screws or bolts into the tapped holes in the seat ring (key 9), making sure the seating surface is
facing up. Lower the seat ring into the valve body. Remove the temporary screws or bolts.
Secure the seat ring (key 9) with the cap screws (key 49). Tighten the cap screws in a criss‐cross pattern to a torque of
39 NSm (29 lbfSft) for NPS 12 and NPS 16x12 valves and to 92 NSm (68 lbfSft) for NPS 16 through NPS 24x20 valves.
2. Install a cage gasket (key 11) into the valve. Temporarily install screws or bolts into the tapped holes in the top of
the cage assembly (key 3) to help while installing this piece into the valve. Any rotational orientation of the cage or
assembly with respect to the valve is acceptable.
For EUT‐2 and EWT‐2 valves, use care to avoid damaging the seat ring seal ring and cage seating surfaces while
handling the heavy parts. To help insert the cage or assembly into the valve, lubricate the outside diameter of the seat
ring seal ring with lithium grease.
3. Slide the valve plug (key 2) and stem assembly into the cage.
For valves with a seal ring, make sure the valve plug seal ring (key 28) is evenly engaged in the entrance chamfer at the
top of the cage or cage assembly to avoid damaging the ring.
For valves with piston rings, make sure the rings are fully engaged into the piston ring groove and flush with the
outside diameter of the plug.
4. Install the bonnet gasket (key 10).
CAUTION
If the packing is to be reused and was not removed from the bonnet, use care when installing the bonnet to avoid
damaging the packing with the valve stem threads.
5. Mount the bonnet on the valve, and complete assembly according to steps 15 through 19 of the Replacing Packing
section, omitting steps 16 and 17 if new packing is not being installed and being sure to observe the note before
step 15.

Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
16
Figure 6. Typical Fisher EUD Valve
B2411
APPLY LUB
B2411-1
VIEW A
PISTON RINGS FOR
EUD AND EWD VALVE PLUGS
CAGE
(KEY 3)
VALVE
PLUG
(KEY 2)
PISTON
RINGS
(KEY 28)
A