Instruction Manual
D102010X012
EU and EW Series Valves
February 2020
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asbestos, has been replaced by a suitable non‐asbestos material.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.
www.Fisher.com
EU and EW Series Valves
February 2020
Instruction Manual
D102010X012
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
other pertinent information that you have available.
for assistance. Provide the product serial number and all
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.
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Instruction Manual
D102010X012
EU and EW Series Valves
February 2020
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
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.
before proceeding.
CAUTION
D Ensure that the valve and adjacent pipelines are free of foreign material that could damage the valve seating surfaces.
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EU and EW Series Valves
February 2020
Instruction Manual
D102010X012
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.
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.
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.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
4
E 2020 Fisher Controls International LLC. All rights reserved.
Instruction Manual
D102010X012
EU and EW Series Valves
July 2017
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
Local Business Partner before proceeding.
www.Fisher.com
or
EU and EW Series Valves
July 2017
Table 1. Specifications
Instruction Manual
D102010X012
Valve Sizes
EUT, EUT‐2, and EUD: NPS J 12, J 16, J 20,
and J 16x20
EWT, EWT‐2, and EWD: NPS J 20x16, J 24x16, and
J 24x20 valves (size designations are end connection
size x nominal trim size)
End Connection Styles
(1)
Flanged: CL150, 300, 600, and 900
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
pressure/temperature ratings per ASME B16.34
Buttwelding: Consistent with CL600 per ASME B16.34
Also see the Installation section
(1)
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: J Linear or J equal percentage
WhisperFlot, Whisper Trimt III, 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: J 279.4 mm (11.00 inches),
NPS 16 Trim: J 355.6 mm (14 inches), J 374.7 mm
(14.75 inches), and J 412.8 mm (16.25 inches)
NPS 20 Trim: J 431.8 mm (17 inches), J 463.6 mm
(18.25 inches) and J 501.7 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
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 Cavitrolt Trim):
Yoke Boss and Stem Diameters
J 127 mm (5‐inch) or J 127 mm (5H‐inch)
diameter yoke boss, each with 31.8 mm
(1‐1/4 inch) diameter valve stem
Class IV
Standard (for 2‐Stage Cavitrol Trim): Class V
Optional (for all trims except 2‐Stage Cavitrol Trim):
Approximate Weights
See table 6
Class V
EUT, EUT‐2, EWT, and EWT‐2 with Soft Metal Seats:
Class V
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: 1-641-754-3771 or 1-800-338-8158
E-mail: education@emerson.com
emerson.com/fishervalvetraining
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Instruction Manual
D102010X012
Table 2. WhisperFlo Trim Specifications
EU and EW Series Valves
July 2017
Trim Material and Selection
J 316 Stainless Steel w/ hardfacing
J 410 Stainless Steel, hardened
J Others per application
Temperature Capability
J EUT and EWT: -73 to 316_C (-100 to 600_F)
J EUT‐2 and EWT‐2: -73 to 232_C (-100 to 450_F)
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)
J EUD and EWD: -29 to 538_C (-20 to 1000_F)
J Others per application
Rangeability
65:1
Maximum Pressure Drops
As shown in this bulletin. Also see Bulletin 80.3:010
WhisperFlo Aerodynamic Attenuation Trims
WhisperFlo Aerodynamic Trim Pressure Ratings
Up to 1500 psi drop
(1,2)
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
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
1. Other pressures on application.
2. The pressure/temperature limits in this instruction manual and in any applicable standard limitations should not be exceeded.
Noise Attenuation
Approximately -40 dBA maximum depending on the
nP/P
ratio per IEC 60534‐8‐3 calculation procedure
1
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.
3
EU and EW Series Valves
July 2017
Instruction Manual
D102010X012
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
4
Instruction Manual
D102010X012
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.
EU and EW Series Valves
July 2017
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‐SEALt live‐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:
5