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Instruction Manual

D104485X012

Vonk Choke Valves

September 2019

2

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

before proceeding.

Description

V

onk 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.

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: [email protected]
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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Содержание Fisher Vonk Choke Series

Страница 1: ...cts 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might mention asbestos containing parts Since 1988 any gasket or packing which may have contained some asbestos has been replaced by a suitable non asbestos material Replacement parts in other materials are available from your sales office Safety Instructions Please read these safety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 car...

Страница 2: ... 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 O...

Страница 3: ... 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 betwe...

Страница 4: ...o 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 movi...

Страница 5: ...fications 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 ICV SCV YCV CHV Instruction Manual D104485X012 Vonk Choke Valves September 2019 ...

Страница 6: ... 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 Educational Services For information on available courses contact Emerson Automation Solutions Educational Services R...

Страница 7: ... 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 ca...

Страница 8: ... 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 protocol c As a fieldbus signal e g FOUNDATION f...

Страница 9: ...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...

Страница 10: ...tion 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...

Страница 11: ...urning 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 th...

Страница 12: ...ll 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...

Страница 13: ...12 Vonk Choke Valves September 2019 9 Figure 4 Vonk Choke Valve Service Procedure TRIM INSPECTION 1 Undo body bonnet bolting 2 Take off bonnet assembly TAKE OUT INTERNALS 3 Attach internal wrench tool 4 Pull out internals 1 2 3 4 ...

Страница 14: ...ote Contact your Emerson sales office for Part Ordering information 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 100W...

Страница 15: ...haft 30 80 Radial Bearing 30 90 Scraper 30 100Wedge 30 110Pin 30 120Support 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 Bear...

Страница 16: ... 10 Stud Bolt qty 4 Nut qty 4 40 30 Nameplate 40 40 Rivets qty 2 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 100Shaft Key 30 110Pin 3...

Страница 17: ... 120Bonnet Bush 30 130O Ring qty 2 30 140Spring Sleeve 30 150Gland 30 160Stem Packing qty 3 30 170Body Packing 30 180Hex 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 Bu...

Страница 18: ... 20 130O Ring 20 140Front Disk 20 170Bean 20 180Rotating 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 ...

Страница 19: ...isk 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 100Shaft Key 30 110Pin 30 130Spring Bush 40 10 Stud Bolt qty 6 Nut qty 6 40 30 Nameplate 40 40 Rivets qty 2 ...

Страница 20: ...485X012 Vonk Choke Valves September 2019 16 Figure 5 Vonk CHV Valve STD 30 100 30 70 30 90 30 10 30 80 30 60 30 50 30 40 30 30 30 20 40 40 40 30 20 80 20 70 20 60 20 50 20 20 20 40 20 30 20 10 10 40 10 30 120 30 110 94 10 360 ...

Страница 21: ...12 Vonk Choke Valves September 2019 17 Figure 6 Vonk CHV Valve STD FE 94 10 884 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 80 20 60 20 50 20 20 20 40 20 30 20 10 10 30 110 30 50 30 140 40 10 ...

Страница 22: ...19 18 Figure 7 Vonk CHV Valve STD FE FS 94 20 896 30 100 30 70 30 90 30 10 30 80 30 60 30 50 30 40 30 20 30 30 40 40 40 30 30 130 20 70 20 90 20 80 20 60 20 50 20 20 20 40 20 30 40 50 20 10 10 30 110 30 120 30 170 30 140 40 10 30 160 30 150 30 180 A A SECTION A A ...

Страница 23: ...485X012 Vonk Choke Valves September 2019 19 Figure 8 Vonk CHV Valve LT 94 10 904 30 70 30 100 30 90 30 10 30 80 30 60 30 50 30 20 40 10 40 20 40 30 30 40 20 80 20 70 20 60 20 20 20 50 20 40 20 30 20 10 10 30 120 30 30 30 110 ...

Страница 24: ...12 Vonk Choke Valves September 2019 20 Figure 9 Vonk CHV Valve LT FE 94 20 898 30 110 30 130 30 30 30 50 30 90 30 100 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 20 40 20 30 20 10 10 ...

Страница 25: ...es September 2019 21 Figure 10 Vonk CHV Valve LT FE FS 94 10 890 30 110 30 130 30 70 30 50 30 59 30 100 30 10 30 80 30 61 30 60 30 140 40 10 30 40 40 20 40 30 30 30 20 80 20 70 20 60 20 50 20 20 20 40 20 30 40 50 10 30 120 30 160 30 20 20 10 30 150 ...

Страница 26: ...Instruction Manual D104485X012 Vonk Choke Valves September 2019 22 Figure 11 Vonk CHV Valve HT 94 20 497 ...

Страница 27: ...onk Choke Valves September 2019 23 Figure 12 Vonk CHV Valve HT FE 94 20 875 30 110 30 140 40 10 30 10 30 80 30 70 30 60 30 120 30 90 30 30 40 20 40 30 30 20 20 80 20 70 20 60 20 50 20 20 20 40 20 30 20 10 10 30 50 30 40 30 110 30 130 ...

Страница 28: ...es September 2019 24 Figure 13 Vonk CHV Valve HT FE FS 94 10 891 30 110 30 130 40 10 30 10 30 80 30 70 30 60 30 140 40 50 30 30 40 20 40 30 30 20 20 80 20 70 20 60 20 50 20 20 20 40 20 30 20 10 10 30 59 30 40 30 100 30 160 30 120 30 61 30 50 30 150 ...

Страница 29: ... Vonk Choke Valves September 2019 25 Figure 14 Vonk YCV Valve STD 95 20 028 30 110 20 30 40 10 30 10 30 80 30 70 30 60 30 120 30 90 30 30 40 40 40 30 30 20 20 80 20 70 20 60 20 50 20 20 20 40 20 90 20 10 10 30 50 30 40 30 100 30 130 ...

Страница 30: ...Instruction Manual D104485X012 Vonk Choke Valves September 2019 26 Figure 15 Vonk YCV Valve STD FE 95 20 039 ...

Страница 31: ...9 27 Figure 16 Vonk YCV Valve STD FE FS 95 20 040 30 70 30 90 30 100 30 10 30 160 30 150 30 80 30 50 30 40 30 30 30 170 30 120 40 40 40 30 20 80 20 70 20 20 20 10 10 40 10 30 140 30 60 30 20 30 130 30 110 20 90 20 60 20 50 20 40 20 30 40 50 SECTION B VIEW B 30 180 ...

Страница 32: ...Vonk Choke Valves September 2019 28 Figure 17 Vonk YCV Valve LT FE 95 X0 041 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 80 20 60 20 50 20 20 20 40 20 30 20 10 10 30 120 30 50 40 10 30 130 30 110 ...

Страница 33: ...012 Vonk Choke Valves September 2019 29 Figure 18 Vonk YCV Valve HT 95 20 033 30 100 30 70 30 90 30 10 30 80 30 60 40 30 30 30 40 40 30 40 30 20 20 90 20 70 20 80 20 60 20 50 20 20 20 40 20 30 20 10 10 30 130 30 50 30 110 30 120 ...

Страница 34: ...l D104485X012 Vonk Choke Valves September 2019 30 Figure 19 Vonk ICV Valve STD 97 10 761 20 10 20 20 30 60 20 70 30 40 20 40 30 70 30 80 10 20 30 50 10 10 30 20 20 50 20 45 20 60 20 90 20 80 20 30 30 10 SECTION A A A A ...

Страница 35: ...04485X012 Vonk Choke Valves September 2019 31 Figure 20 Vonk ICV Valve LT 91 20 227 30 70 30 10 SECTION A A A A 30 20 10 20 20 10 30 50 30 40 20 90 20 40 20 120 20 110 20 130 10 20 170 20 140 20 100 20 20 20 50 20 180 30 60 ...

Страница 36: ...Instruction Manual D104485X012 Vonk Choke Valves September 2019 32 Figure 21 Vonk ICV Valve HT 91 20 221 OPEN CLOSED ...

Страница 37: ...85X012 Vonk Choke Valves September 2019 33 Figure 22 Vonk SCV Valve STD 10 1A 000 30 100 30 70 30 90 30 10 30 80 30 60 40 30 30 30 40 40 30 40 30 20 40 10 20 70 20 80 20 60 20 50 20 20 20 40 20 30 20 10 10 30 130 30 50 30 110 ...

Страница 38: ...Instruction Manual D104485X012 Vonk Choke Valves September 2019 34 ...

Страница 39: ...Instruction Manual D104485X012 Vonk Choke Valves September 2019 35 ...

Страница 40: ...eserve the right to modify or improve the designs or specifications of such products at any time without notice E 2019 Fisher Controls International LLC All rights reserved 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 Emer...

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