Fisher Vonk Choke Valve Series (CHV, ICV, SCV, and YCV) (Obsolete Product) Manuals & Guides
Page 1
Instruction Manual
D104485X012
Vonk Choke Valves
February 2021
Vonk™ Choke Valve Series
(CHV, ICV, SCV, and YCV) (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asbestos, has been replaced by a suitable non‐asbestos material.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
Page 2
Vonk Choke Valves
February 2021
Instruction Manual
D104485X012
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.
2
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Instruction Manual
D104485X012
Vonk Choke Valves
February 2021
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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Vonk Choke Valves
February 2021
Instruction Manual
D104485X012
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 and Vonk 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 2021 Fisher Controls International LLC. All rights reserved.
Page 5
Instruction Manual
D104485X012
Vonk™ Choke Valve Series
(CHV, ICV, SCV, and YCV)
Vonk Choke Valves
September 2019
Contents
Introduction 2...................................
Scope of Manual 2.............................
Description 2.................................
Educational Services 2.........................
Specifications 2
Temperature Range 2..........................
Installation 3
Operation 5...................................
Maintenance 5
Disassembly 6................................
Assembly 7...................................
Retightening Nuts
Body Bonnet Connection 8...................
Valve Internals and Bonnet Maintenance 8........
Disassembly 8.............................
Assembly 8...............................
Parts Ordering 10
Parts List 10.....................................
..................................
....................................
..................................
................................
Figure 1. Vonk Choke Valves
CHV
ICV
www.Fisher.com
SCV
YCV
Page 6
Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
Introduction
Scope of Manual
This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the
Vonk choke valve. Refer to separate instruction manuals for information about the valve positioner and other
accessories used with the valves.
Do not install, operate, or maintain a Vonk valve (see figure 1) 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
Description
Vonk choke valves are of the rotary type. The valve can be used for tight shut off service to Class V of ANSI/FCI 70-2
standard for contaminated fluids and high-pressure drops. The throttling mechanism consists of two polished disks,
each provided with an eccentric orifice. One disk is fixed into the body; the other one is rotated to achieve Class V seat
leakage performance.
before proceeding.
Educational Services
For information on available courses, 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
Specifications
Contact your Emerson sales office for additional information.
Temperature Range
Vonk choke valves are designed for three temperature ranges:
The Standard version (STD) equipped with O-rings.
The Low Temperature version (LT) equipped with special LT-seals.
The High Temperature version (HT) is the same as the LT version but has an extended bonnet construction to
withstand high temperatures.
Each version is available with special fugitive emissions (FE) or fire safe (FS) seal option depending on application and
choke valve type. Refer to table 1 for configurations covered in this manual.
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Instruction Manual
D104485X012
Vonk Choke Valves
September 2019
Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations.
To avoid personal injury or property damage resulting from the sudden release of process pressure or bursting of parts, 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.
Check with your process or safety engineer for any other hazards that may be present from exposure to process media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature,
pressure drop, and controlled fluid conditions indicated when the valve was ordered. Because some body/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
1. Carefully remove the valve from the shipping package (box or pallet) avoiding any damage to the valve or, in case of
automated valves, to the electric or pneumatic / hydraulic actuator or instrumentation.
2. The valves are shipped with the ends protected with caps and a thin layer of protective grease. Before installing the
valve, remove the protective caps from the valve. Clean carefully and then de-grease both surfaces with a solvent.
Clean the inside of the valve to ensure there are no solid objects such as pieces of wood, plastic or packing materials
within the valve or on the valve seat. The valve must be free of all foreign matter.
3. Confirm that the materials of construction listed on the valve nameplate are appropriate for the service intended
and are as specified.
.
Vonk chokes valves can be mounted in any position. Installation of the valve must match the flow direction is indicated
by the arrow on the valve-body.
Unless otherwise recommended by Emerson:
1. The pipe ends must be properly aligned and supported so as to prevent the valve being subjected to unnecessary
stress induced by connecting piping.
2. It is recommended to perform piping flushing before installation of valve.
3. After the down-stream flange (outlet flange), the piping shall be straight over a certain length (depending on the
flow medium, the fluid phase and the pressure drop over the valve), but at least 1 meter (39-inches).
4. For choke valves provided with pneumatic actuators, the air pressure to the actuator shall be at least 4.5 bar (65
psi), and a maximum of 8 bar (116 psi), unless specified otherwise. Clean, dry compressed air can be used for the
actuator. If a valve positioner is used, instrument air has to be used; do not install a drip feed lubricator in the supply
line to the positioner.
5. During the installation of the valve, materials, such as connecting flanges, gaskets and bolting shall be used,
appropriate for the design conditions of the application.
6. If present, do not cover or stop up the drain channels located at the actuator top-flange of the bonnet.
CAUTION
Make sure that the operating limits of the valve are the same or higher than the operating limits of the piping system. See
the nameplate of the choke valve.
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Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
In case of a HT version valve, the bonnet should not be insulated (this may over-heat the bonnet).
After installation, check the operation of the valve by stroking it to 'full open' and 'full close'. The position of the valve
can be indicated in the following ways:
1. Mechanical, by a dial plate showing the position of the valve. The following methods are available:
a. Percent of the full stroke of the actuator
b. Percent opening of the valve
c. Equivalent bean size in 1/64-inch increments
2.
Electrical limit switches indicating end of stroke of the actuator.
3. Electronic valve position transmitter, presenting the position of the valve:
a. As a 4-20 ma signal
b. As a 4-20 ma signal with 'smart' transmitter information (HART
c. As a fieldbus signal (e.g. F
OUNDATION™ fieldbus, PROFIBUS)
Figure 2. Vonk Choke Valves Open / Throttled / Shut
OPEN
BODY / BONNET BOLTING
THROTTLED
SHUT
®
protocol)
BONNET SHAFT
SPRING
SOFT SEALS
BODY PROTECTING BUSH
TURNING FORK
FRONT DISK
SOFT SEALS
BACK DISK AND BEAN CARRIER
BODY
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Instruction Manual
D104485X012
Vonk Choke Valves
September 2019
Operation
Manual: Manual shut-off valves are designed to 'shut' when the handwheel is turned clockwise and 'open' when the
handwheel is turned counter-clockwise (including valves with gearbox operators). Handwheels of electric actuators (or
pneumatic actuators) are for emergency operation only.
Pneumatic / Hydraulic: Choke valves fitted with a pneumatic or hydraulic actuator must be connected and operated in
accordance with the actuator manufacturer instructions. Refer to the actuator instruction manual.
Electric: Choke valves fitted with an electrical actuator must be connected and operated in accordance with the
actuator manufacturer instructions. Refer to the actuator instruction manual.
Positioner: Choke valves fitted with a positioner must be connected and operated in accordance with the positioner
manufacturers instructions. Refer to the positioner instruction manual.
Maintenance of Valve Internals
Valve parts are subject to normal wear and must be inspected regularly and replaced when necessary. The frequency
of inspection and replacement depends on the severity of service conditions.
WARNING
Avoid personal injury or property damage from sudden release of process pressure or uncontrolled movement of parts.
Before performing any maintenance operations:
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
from 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 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 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.
WARNING
Follow instructions carefully to avoid damaging the valve sealing and packing surfaces, which could result in excessive
leakage at shutoff or allow process fluid to leak to atmosphere.
Note
Whenever a gasket seal is disturbed by removing or shifting gasketed parts, install a new gasket during reassembly. This ensures a
good gasket seal because the used gasket may not seal properly.
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Vonk Choke Valves
September 2019
Figure 3. Vonk Choke Valve Internals
Instruction Manual
D104485X012
TURNING FORK MARK
PROTECTING BUSH
TURNING FORK
FRONT DISK
SPRING WIRE
BEAN
Prior to any inspection or maintenance, refer to the appropriate parts list and associated figure for the choke valve
type and seal configuration.
After the choke valve has been disassembled, a new set of soft seals must be used. The trim and bonnet can be
replaced and/or inspected without removing the body out of the line.
For inspection of the choke valve, an internal wrench tool is required.
Disassembly
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
1. Isolate the choke 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.
2. Unscrew the air tubing. In case of a conventional type valve positioner, check the cam in the valve positioner (zero
position open when the actuator is spring to close, and zero position closed when the actuator is spring to open).
3. Unscrew the bonnet nuts and lift the bonnet and actuator from the body.
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Instruction Manual
D104485X012
4. Check the position of the turning fork. If the mark on top of the turning fork is opposite the inlet flange, the valve is
in the closed position. (See figure 3.)
5. Screw the bolts of the internal wrench tool into the thread holes of the body-protecting bush. (See figure 4.)
6. The complete trim can be removed out of the body by turning down the nuts of the internal wrench tool.
7. Disassemble the internals by removing the locking wire, and lift the protection bush from the bean.
8. Examine the internals for foreign material that may affect the operation of the choke.
9. Inspect the front disk and bean. The surface where the orifice is located should be smooth and free of any damage.
If there is any visible damage, then the parts need to be replaced.
10. Clean the inside of the body very carefully. Special attention has to be given to places where soft seals are situated.
Clean the sealing surfaces and inspect them for corrosion, pitting or scratches. After inspection, lightly grease the
sealing faces (universal grease).
Vonk Choke Valves
September 2019
CAUTION
If a 'spring-energized seal' is used, use only a PTFE spray lubricant on the spring energized seal sealing face.
Assembly
1. Put one drop of light oil on the seating surface, and place the front disk on the bean.
2. Put the turning fork on the front disk, and ensure the mark on top of the turning fork is in the same position as the
orifice in the front disk.
3. Install the scraper over the turning fork. Lightly grease it with an anti-seize lubricant.
4. Place the guide-strip of the internal and the scraper around the front disk. Mount the protecting bush. The
protecting bush inlet hole should point to the same direction as the orifice of the bean. (See figure 3.)
5. Replace the locking-wire.
6. Using the turning fork, turn the orifice of the front disk and bean to a fully open position for valves with a
spring-to-open actuator. For an actuator with a spring-to-close action, the orifice has to be put in a position of 180
degrees (90 degrees for NPS 1 choke valves) from the fully open position.
7. Mount the new seal around the bean.
8. Grease (universal grease) the seal slightly and insert the complete internal in the body.
CAUTION
If a 'spring-energized seal' is used, use only a PTFE spray lubricant on the spring energized seal sealing face.
9. Recheck the position of the turning fork and put spring in position.
10. Place the bonnet and the actuator on the body. Be sure that the adjusting pin is placed in the hole of the protecting
bush.
11. Grease the stud bolts with anti-seize lubricant and tighten the nuts crosswise. See Retightening of Nuts Body
Bonnet Connection in this manual for more information.
12. Connect the air tubing.
13. After assembling the choke valve, perform a functional test to check whether the valve functions properly.
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Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
Retightening Nuts Body Bonnet Connection
Due to the design of the choke valve, the nuts of the studs (body-bonnet connection) needs to be tightened
sufficiently to provide a proper connection.
Valve Internals and Bonnet Maintenance
A replacement set of soft seals is required.
Disassembly
1. Complete steps 1 to 10 of the Maintenance of Valve Internals Disassembly section in this manual.
2. Take the shaft key out of the bonnet shaft and push the bonnet shaft out of the bonnet.
3. Remove all the seals, bearings,and scrapers.
4. Clean all the parts.
5. Clean all the sealing surfaces of bonnet and shaft very carefully and inspect them for corrosion, pitting or scratches.
Assembly
1. Complete steps 1 to 13 of Maintenance of Valve Internals Assembly section in this manual.
2. Grease all the sealing surfaces with PTFE spray lubricant.
3. Mount seals, bearings, and scrapers on the bonnet shaft. (For correct position, refer to applicable drawing and parts
list.)
Note
For easy mounting, the O-ring needs to be pushed in (create a heart shaped form), to decrease the outer diameter. When the
O-ring is in position push it back to its original shape.
4. Check if all the seals are mounted correctly (per applicable drawing and parts list) and fully in position.
5. Grease the seals with PTFE spray lubricant.
CAUTION
The seals are easily damaged. The right way to mount the seal holder is to carefully and gently push while turning it over
the bonnet shaft.
6. Mount the remaining seals around the bonnet. Then mount bearings and grease all with PTFE spray lubricant.
7. Push the bonnet shaft gently to the bonnet.
8. Place the bonnet on the body. Be sure the adjusting pin is placed in the hole of the protecting bush.
(1-inch TS bonnet has no adjusting pin.)
9. Complete steps 11 to 13 of the Maintenance of Valve Internals Assembly section in this manual.
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Instruction Manual
D104485X012
Figure 4. Vonk Choke Valve Service Procedure
Vonk Choke Valves
September 2019
1.
TRIM INSPECTION
1. Undo body/bonnet bolting.
2. Take off bonnet assembly.
3. 4.
TAKE OUT INTERNALS
3. Attach internal wrench tool.
4. Pull out internals.
2.
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Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
Parts Ordering
Each actuator has a serial number stamped on the nameplate. Always mention this number when corresponding with
your Emerson sales office
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.
Table 1. Vonk Assembly Arrangements
CHOKE TYPE STD STD/FE STD/FE/FS LT LT/FE LT/FE/FS HT HT/FE HT/FE/FS
CHV X X X X X X X X X
ICV X X
SCV X
YCV X X X X
regarding technical information or replacement parts.
Parts List
Note
Contact your Emerson sales office
CHV Valve, STD (figure 5)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Guide Strip
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 O-Ring, qty 2
30.30 V-Seal
30.40 Guide Strip
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing, qty 2
30.90 Scraper
30.100 Wedge
30.110 Pin
30.120 Spring Sleeve
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
for Part Ordering information.
CHV Valve, STD/FE (figure 6)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 O-Ring, Bean
20.40 Locking Wire
20.50 Guide Strip
20.60 Scraper
20.70 Turning Fork
20.80 Protecting Bush
20.90 V-Ring
30.10 Bonnet
30.20 O-Ring, qty 2
30.30 Seal
30.40 Bearing, qty 2
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing, qty 2
30.90 Scraper
30.100 Wedge
30.110 Pin
30.140 Spring Sleeve
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 4
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Instruction Manual
D104485X012
Vonk Choke Valves
September 2019
CHV Valve, STD/FE/FS (figure 7)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 O-Ring
20.40 Locking Wire
20.50 Guide Strip
20.60 Scraper
20.70 Turning Fork
20.80 Protecting Bush
20.90 V-Ring
30.10 Bonnet
30.20 O-Ring, qty 2
30.30 Seal
30.40 Guide Strip
30.50 Spring
30.60 Bearing Ring
30.70 Shaft
30.80 Bearing
30.90 Scraper
30.100 Wedge
30.110 Pin
30.120 Bonnet Bush
30.130 O-Ring, qty 2
30.140 Spring Sleeve
30.150 Gland
30.160 Stem Packing, qty 3
30.170 Body Packing
30.180 Hex Screw, qty 6
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
40.50 Bean Packing
CHV Valve, LT (figure 8)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal
20.40 Locking Wire
20.50 Guide Strip
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Guide Strip
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing
30.90 Scraper
30.100 Wedge
30.110 Pin
30.120 Support Ring
40.10 Stud Bolt, qty 4
Nut, qty 4
40.20 Nameplate
40.30 Rivets, qty 2
CHV Valve, LT/FE (figure 9)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Bearing
30.90 Scraper
30.100 Shaft Key
30.110 Pin
30.120 Bearing Holder
30.130 Spring Sleeve
40.10 Stud Bolt, qty 4
Nut, qty 4
40.20 Nameplate
40.30 Rivets, qty 2
CHV Valve, LT/FE/FS (figure 10)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.59 Ring
30.60 Bearing Ring
30.61 Ring
30.70 Shaft
30.80 Bearing
30.100 Shaft Key
30.110 Pin
30.120 Gland
30.130 Spring Sleeve
30.140 Body Packing
30.150 Hex Screw, qty 6
30.160 Stem Packing, qty 4
40.10 Stud Bolt, qty 4
Nut, qty 4
40.20 Nameplate
40.30 Rivets, qty 2
40.50 Bean Packing, qty 2
11
Page 16
Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
CHV Valve, HT (figure 11)
Key Description
1 Body
10 Bean
20 Front Disk
31 Seal, Bean
32 Locking Wire
33 Bearing
35 Turning Fork
36 Protecting Bush
37 V-Ring
50 Bonnet
51 Seal
52 Seal, Back Up
53 Bearing
54 Spring
55 Bearing
56 Shaft
57 Radial Bearing
58 Protecting Ring
59 Wedge
60 Pin
61 O-Ring
63 Bearing Holder
80 Stud Bolt, qty 8
81 Nut, qty 8
82 Nameplate
84 Rivets, qty 2
CHV Valve, HT/FE (figure 12)
CHV Valve, HT/FE/FS (figure 13)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.59 Ring
30.60 Bearing Ring
30.61 Ring
30.70 Shaft
30.80 Bearing
30.100 Shaft Key
30.110 Pin
30.120 Gland
30.130 Spring Sleeve
30.140 Body Packing
30.150 Hex Screw, qty 6
30.160 Stem Packing, qty 4
40.10 Stud Bolt, qty 4
Nut, qty 4
40.20 Nameplate
40.30 Rivets, qty 2
40.50 Bean Packing, qty 2
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Bearing
30.90 Protection Ring
30.100 Shaft Key
30.110 Pin
30.120 O-Ring
30.130 Bearing Holder
30.140 Spring Bush
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
YCV Valve, STD (figure 14)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 O-Ring
30.30 Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing
30.90 Scraper
30.100 Shaft Key
30.110 Pin
30.120 Bearing Holder
30.130 Spring Bush
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
12
Page 17
Instruction Manual
D104485X012
Vonk Choke Valves
September 2019
YCV Valve, STD/FE (figure 15)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Guide Strip
20.60 Scraper
20.70 Turning Fork
20.80 Protecting Bush
20.90 V-Ring
30.10 Bonnet
30.20 O-Ring, qty 2
30.30 Seal
30.40 Guide Strip, qty 2
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing, qty 2
30.90 Scraper
30.100 Wedge
30.110 Pin
30.120 Bonnet Bush
30.130 O-Ring, qty 2
30.140 Spring Sleeve
40.10 Stud Bolt, qty 6
Nut, qty 6
40.30 Nameplate
40.40 Rivets, qty 2
YCV Valve, STD/FE/FS (figure 16)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Guide Strip
20.60 Scraper
20.70 Turning Fork
20.80 Protecting Bush
20.90 V-Ring
30.10 Bonnet
30.20 O-Ring, qty 2
30.30 Seal
30.40 Guide Strip, qty 2
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radical Bearing, qty 2
30.90 Scraper
30.100 Wedge
30.110 Pin
30.120 Bonnet Bush
30.130 O-Ring, qty 2
30.140 Spring Sleeve
30.150 Gland
30.160 Stem Packing, qty 3
30.170 Body Packing
30.180 Hex Screw, qty 6
40.10 Stud Bolt, qty 4
Nut, qty 4
Key Description
40.30 Nameplate
40.40 Rivets, qty 2
40.50 Bean Packing
YCV Valve, LT/FE (figure 17)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
20.90 Dowel Pin
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Bearing
30.90 Scraper
30.100 Shaft Key
30.110 Pin
30.120 Bushing Holder
30.130 Spring Bush
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
YCV Valve, HT (figure 18)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 Seal, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
20.90 Dowel Pin
30.10 Bonnet
30.20 Seal
30.30 Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Radial Bearing
30.90 Protecting Ring
30.100 Shaft Key
30.110 Dowel Pin
30.120 O-Ring
30.130 Bearing Holder
40.10 Stud Bolt, qty 4
Nut, qty 4
40.30 Nameplate
40.40 Rivets, qty 2
13
Page 18
Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
ICV Valve, STD (figure 19)
Key Description
10.10 Inlet Flange
10.20 Outlet Flange
20.10 O-Ring
20.20 O-Ring, qty 3
20.30 Back Disk
20.40 Rotating Shaft
20.45 Back-up Ring, qty 2
20.50 Spring
20.60 O-Ring, qty 4
20.70 Bearing
20.80 Front Disk
20.90 Spring Bush
30.10 Wedge
30.20 Stud Bolt, qty 6
Nut, qty 6
30.40 Nameplate
30.50 Rivets, qty 4
30.60 Protecting Ring
30.70 Grease Cap
30.80 Outlet Nameplate
ICV Valve, LT (figure 20)
Key Description
10.10 Inlet Flange
10.20 Outlet Flange
20.10 V-Seal
20.20 Rotating Shaft
20.40 Locking Wire
20.50 Pin
20.90 Spring Bush
20.100 Spring
20.110 Guide Bearing, qty 2
20.120 Seal, qty 2
20.130 O-Ring
20.140 Front Disk
20.170 Bean
20.180 Rotating Shaft
30.10 Wedge
30.20 Stud Bolt, qty 6
Nut, qty 6
30.40 Nameplate
30.50 Rivets, qty 4
30.60 Protecting Ring
30.70 Outlet Nameplate
ICV Valve, HT (figure 21)
Key Description
1 Inlet Flange
2 Outlet Flange
6 Seal
7 Seal
9 Bean
11 Pin
12 Handle Part, Rotating Shaft
13 Front Disk, Rotating Shaft
14 Spring Bush
15 Spring
16 Guide Bearing, qty 2
17 Seal, qty 2
18 O-Ring
19 Front Disk
20 Locking Wire, Rotating Shaft
22 Wedge
23 Stud Bolt, qty 6
24 Nut, qty 6
26 Nameplate
27 Rivets, qty 4
28 Protecting Ring
30 Outlet Nameplate
40 Rotating Shaft, Handle
41 Nut, qty 3
42 Fork, qty 2
43 Set-Screw, qty 2
44 Set-Screw
45 Eye-Bolt, Right
46 Eye-Bolt, Left
47 Nut
48 Shaft
49 Actuator Handle
50 Washer
51 Bolt
55 Mounting Plate
56 Pin
57 Retaining Ring
58 Bearing Ring
59 Coupling Shaft
60 Bolt, qty 2
61 Washer, qty 2
62 Bolt, qty 4
63 Washer, qty 4
14
Page 19
Instruction Manual
D104485X012
SCV Valve, STD (figure 22)
Key Description
10 Body
20.10 Bean
20.20 Front Disk
20.30 O-Ring, Bean
20.40 Locking Wire
20.50 Bearing
20.60 Turning Fork
20.70 Protecting Bush
20.80 V-Ring
30.10 Bonnet
30.20 O-Ring
30.30 Lip Seal
30.40 Bearing
30.50 Spring
30.60 Bearing
30.70 Shaft
30.80 Bearing
30.90 Scraper
30.100 Shaft Key
30.110 Pin
30.130 Spring Bush
40.10 Stud Bolt, qty 6
Nut, qty 6
40.30 Nameplate
40.40 Rivets, qty 2
Vonk Choke Valves
September 2019
15
Page 20
Vonk Choke Valves
September 2019
Figure 5. Vonk CHV Valve, STD
Instruction Manual
D104485X012
30.100 30.70
30.90 30.10 30.80
30.60 30.50 30.40
30.30 30.20 40.40
30.120
40.10
30.110
40.30
20.80
20.70
20.60
20.50
20.20 20.40
20.30
20.10
10
16
94.10.360
Page 21
Instruction Manual
D104485X012
Figure 6. Vonk CHV Valve, STD/FE
30.100
30.70 30.90 30.10 30.80
30.60
30.40
30.30 40.40
40.30
30.20
20.90
20.70
20.60 20.50 20.20 20.40
20.80
Vonk Choke Valves
September 2019
20.30 20.10
10
94.10.884
40.10
30.140
30.50
30.110
17
Page 22
Vonk Choke Valves
September 2019
Figure 7. Vonk CHV Valve, STD/FE/FS
Instruction Manual
D104485X012
30.100 30.70 30.90
30.10 30.80 30.60 30.50
30.150
30.180
A
30.40 30.20 30.30
30.140
40.1030.160
40.40
30.170
30.130 20.70 20.90 20.80
40.30
30.120
30.110
SECTION A-A
20.60
20.50
20.20
20.40 20.30
40.50
20.10 10
18
94.20.896
A
Page 23
Instruction Manual
D104485X012
Figure 8. Vonk CHV Valve, LT
Vonk Choke Valves
September 2019
30.7030.100
30.90
30.10
30.80
40.10
30.60
30.50
30.40
30.20
30.120
40.20
30.30
30.110
40.30
20.80 20.70
20.60
20.20
20.50 20.40
20.30 20.10
10
94.10.904
19
Page 24
Vonk Choke Valves
September 2019
Figure 9. Vonk CHV Valve, LT/FE
30.10
30.80
30.70
30.60
30.120 40.10
30.40
40.20
40.30 30.20
20.80 20.70
20.60 20.50 20.20
Instruction Manual
20.40 20.30 20.10
D104485X012
10
94.20.898
30.100
30.90
30.50
30.11030.13030.30
20
Page 25
Instruction Manual
D104485X012
Figure 10. Vonk CHV Valve, LT/FE/FS
Vonk Choke Valves
September 2019
30.100
30.70
30.120
30.160
30.10
30.150
30.80
30.60
30.59
30.61
30.40
40.10
30.30
30.20 20.10
30.140
30.50
40.30
40.20
20.80
20.70
20.60
30.11030.130
20.5020.20
20.40
20.30 40.50
10
94.10.890
21
Page 26
Vonk Choke Valves
September 2019
Figure 11. Vonk CHV Valve, HT
Instruction Manual
D104485X012
94.20.497
22
Page 27
Instruction Manual
D104485X012
Figure 12. Vonk CHV Valve, HT/FE
Vonk Choke Valves
September 2019
30.70
30.110
30.10
30.80
30.130
30.60
30.120
30.90
30.30
40.10
30.5030.40
30.140
30.110
40.3030.20
40.20
20.60
20.80 20.70
20.50 20.20
20.40
20.30 20.10
10
94.20.875
23
Page 28
Vonk Choke Valves
September 2019
Figure 13. Vonk CHV Valve, HT/FE/FS
30.70
30.100
30.120
30.10
30.160
30.80
30.60
30.59
30.40
30.30
30.140
40.20
Instruction Manual
D104485X012
20.70
40.3030.20
20.80
20.60 20.50 20.20
20.40
20.30
40.50
10
20.10
30.61
30.150
40.10
30.50
30.130
30.110
24
94.10.891
Page 29
Instruction Manual
D104485X012
Figure 14. Vonk YCV Valve, STD
Vonk Choke Valves
September 2019
30.100
30.70
30.90
30.10
30.120
30.50
30.40
30.20
20.80
40.30
40.40
20.70
20.90
20.5020.20
10
95.20.028
30.80
40.10
30.60
30.30
30.130
30.110
20.60
20.40
20.30
20.10
25
Page 30
Vonk Choke Valves
September 2019
Figure 15. Vonk YCV Valve, STD/FE
Instruction Manual
D104485X012
26
95..20.039
Page 31
Instruction Manual
D104485X012
Figure 16. Vonk YCV Valve, STD/FE/FS
Vonk Choke Valves
September 2019
30.100
SECTION B
30.70 30.90
30.160
30.150
30.10
30.50 30.40 30.30
30.80
30.170
30.120
40.40 40.30
20.70 20.20 20.10
20.80
10
95.20.040
40.10
30.20
30.14030.60
30.130
30.110
20.90 20.60 20.50
30.180
20.40 20.30 40.50
VIEW B
27
Page 32
Vonk Choke Valves
September 2019
Figure 17. Vonk YCV Valve, LT/FE
30.100
30.7030.90
30.10
30.120 30.50
30.80 30.60 30.40
30.30
30.20
Instruction Manual
D104485X012
20.7020.80
40.4040.30
10
28
95.X0.041
40.10
30.130
30.110
20.60
20.50
20.40 20.30 20.10
20.20
20.90
Page 33
Instruction Manual
D104485X012
Figure 18. Vonk YCV Valve, HT
30.70
30.100
30.80
30.130
30.60
30.120
30.10
30.50
40.30
40.40
Vonk Choke Valves
September 2019
10
95.20.033
30.90
30.40
30.20
30.30
30.110
20.60
20.7020.80
20.50
20.40
20.20
20.90
20.3020.10
29
Page 34
Vonk Choke Valves
September 2019
Figure 19. Vonk ICV Valve, STD
Instruction Manual
D104485X012
10.20
30.20
20.10
30.80
20.20
A
A
30.40
20.30
30.50
20.80
20.50
20.40
30.70
20.45
30.60 20.70
20.6020.90
10.10
97.10.761
30.10
SECTION A-A
30
Page 35
Instruction Manual
D104485X012
Figure 20. Vonk ICV Valve, LT
Vonk Choke Valves
September 2019
10.20 20.10
30.20
30.70
A
20.170
A
30.50 30.40
20.140
20.90
20.40
20.120
20.110
20.100 20.20 20.50 20.180 30.60
20.130
10
91.20.227
30.10
SECTION A-A
31
Page 36
Vonk Choke Valves
September 2019
Figure 21. Vonk ICV Valve, HT
OPEN
Instruction Manual
D104485X012
91.20.221
CLOSED
32
Page 37
Instruction Manual
D104485X012
Figure 22. Vonk SCV Valve, STD
30.90
30.10
30.70
30.80
40.10
30.100
30.60
30.130
30.50
30.110
Vonk Choke Valves
September 2019
30.30
40.30
40.4030.40 30.20
20.7020.80
20.60
20.50
20.20
20.40
20.30 20.10
10
10.1A.000
33
Page 38
Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
34
Page 39
Instruction Manual
D104485X012
Vonk Choke Valves
September 2019
35
Page 40
Vonk Choke Valves
September 2019
Instruction Manual
D104485X012
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 and Vonk are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation
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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
36
E 2019 Fisher Controls International LLC. All rights reserved.
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