Fisher CV500 Instruction Manual

Instruction Manual

D101640X012

Fisher™ CV500 Rotary Globe Control Valve

CV500 Valve

June 2017

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 1.................................

Specifications 2...............................

Educational Services 2.........................

Installation 3..................................

Maintenance 8.................................

Packing Maintenance 8.........................

Stopping Leakage 9........................

Replacing Packing 9........................

Replacing Retainer, Seat Ring,

and Face Seals 10...........................

Disassembly 10............................

Assembly 13..............................

Replacing Ball, Shaft, and Bearings 15.............

Disassembly 15............................

Assembly 18..............................

Adjusting Actuator Travel 21....................

Changing Valve Flow Direction 22................

Changing Actuator Mounting Style 23............

Parts Ordering 23...............................

Parts Kits 23...................................

Parts List 28...................................

Introduction

Figure 1. Fisher CV500 Valve

X0189

Fisher CV500 VALVE WITH 2052 ACTUATOR AND

FIELDVUE

™

DVC6200 DIGITAL VALVE CONTROLLER

Scope of Manual

This instruction manual provides installation, operation, maintenance, and parts ordering information for NPS 3
through 12 Fisher CV500 Cam Vee‐Ball
the actuator and accessories.

™

rotary control valves. Refer to separate manuals for information concerning

Description

The CV500 Cam‐Vee‐Ball rotary control valve, has a Vee‐Ball style segmented ball in a valve body similar to the V500
valve. The CV500 is a flanged valve (figure 1) with a self‐centering seat, eccentrically rotating V‐notch ball, and splined
valve shaft. Suitable for forward or reverse flow use, this valve mates with a variety of actuators to provide throttling or
on‐off service. The flanged valve mates with ASME flanges or EN flanges.

Do not install, operate, or maintain a CV500 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
proceeding.

www.Fisher.com

or Local Business Partner before

CV500 Valve

June 2017

Table 1. Specifications

Instruction Manual

D101640X012

Valve Sizes

J NPS 3, J 4, J 6, J 8, J 10, and J 12

End Connection Style

J Raised‐face flanges or J ring‐type joint flanges
(ASME B16.5). Valve bodies with EN flanges also
available. Consult your Emerson sales office

or Local

Business Partner.

J Bidirectional flow is into either side of the V‐notch
ball

Actuator Mounting

J Right‐hand or J left‐hand as viewed from the
upstream side of the valve

Mounting position depends on the desired open valve
position and flow direction required by operating

Maximum Inlet Pressure

(1)

conditions

Consistent with applicable ASME B16.34 or
EN 12516-1 ratings

Maximum Pressure Drops

(1)

See tables 2 and 3

Shutoff Classification

Class IV per ANSI/FCI 70‐2 and IEC 60534‐4, (0.01% of
valve capacity at full travel), for either flow direction

Flow Characteristic

Approximately equal percentage

Valve Ball Rotation

Counterclockwise to close (when viewed from
actuator side of valve body) through 90 degrees of
ball rotation

Valve Body/Actuator Action

With diaphragm or piston rotary actuator,
field‐reversible between J push‐down‐to‐close
(extending actuator rod closes valve body) and
J push‐down‐to‐open (extending actuator rod
opens valve body)

Flow Direction

J Forward (normal) flow is into the convex side of
the V‐notch ball

1. The pressure/temperature limits in this manual and any applicable standard limitations should not be exceeded.

2. Shaft diameter and spline end must match available shaft diameter of actuator.

Shaft Diameters

See table 3

(2)

and Approximate Weights

Specifications

Specifications for the CV500 rotary control valve are listed in table 1.

Educational Services

For information on available courses for Fisher CV500 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: [e-mail]
emerson.com/fishervalvetraining

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Instruction Manual

D101640X012

CV500 Valve

June 2017

Table 2. Maximum Allowable Shutoff Pressure Drops

VALVE BODY MATERIAL BEARING MATERIAL

WCC steel

WCC steel, EN 1.0619
steel, CF8M (316 SST),

EN 1.4581 SST, or

(4)

CF3M

(316L SST)

WCC steel

WCC steel, EN 1.0619
steel, CF8M (316 SST),

EN 1.4581 SST, or

(4)

CF3M

(316L SST)

1. -29_C (-20_F) for WCC steel valve body material.

2. For hot water or steam service, limit maximum temperature to 260_C (500_F).

3. The pressure or temperature limits in this table or in any applicable code limitation, should not be exceeded.

4. Standard Fisher material offerings in Europe only.

5. S17400 (17‐4PH SST) shaft only.

6. S20910 stainless steel shaft only. Pressure drops appropriate for both shaft materials.

S44004

(440C SST)

R30006

(Alloy 6)

PTFE/composition‐

lined S31603

(316L SST)

(440C SST)

PTFE/composition‐

lined S31603

(316L SST)

(2)(4)

S44004

R30006
(Alloy 6)

(2)(4)

TEMPERATURE

-29 to 149 41.4 41.4 41.4 24.1 24.1 27.6
149 to 204 41.4 41.4 41.4 23.8 24.1 27.6
204 to 316 41.4 41.4 41.4 23.1 24.1 27.6

(1)

-46
204 to 260 41.4 41.4 20.7 15.1 24.1 27.6
260 to 316 41.4 41.4 20.7 15.1 24.1 27.6

(1)

-46

93 to 149 41.4 41.4 41.4

149 to 204 41.4 41.4 41.4

204 to 260

-20 to 300 600 600 600 350 350 400
300 to 400 600 600 600 345 350 400
400 to 600 600 600 600 335 350 400

(1)

-50
400 to 500 600 600 300 220 350 400
500 to 600 600 600 300 220 350 400

(1)

-50

200 to 300 600 600 600

300 to 400 600 600 600

400 to 500

(3)

3 4 6 8 10 12

_C Bar

to 204 41.4 41.4 20.7 15.1 24.1 27.6

to 93 41.4 41.4 41.4 24.1 31 34.5

(2)

_F Psi

to 400 600 600 300 220 350 400

to 200 600 600 600 350 450 500

(2)

41.4 41.4 41.4

600 600 600

VALVE SIZE, NPS

24.1

23.1

23.8

22.1

23.4

21.7

350
335
345
320
340
315

(5)

(6)

(5)

(6)

(5)

(6)

(5)

(6)

(5)

(6)

(5)

(6)

31 34.5

31 34.5

31 34.5

450 500

450 500

450 500

Installation

WARNING

Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.

Personal injury or equipment damage caused by sudden release of pressure can result if the valve assembly is installed
where service conditions could exceed the pressure drop limits given in table 2 or the valve rating. To avoid such injury or
property damage, provide a relief valve for overpressure protection as required by government or accepted industry codes
and good engineering practices.

Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.

If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.

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June 2017

Instruction Manual

D101640X012

CAUTION

When ordered, the valve configuration and construction materials were selected to meet particular pressure, pressure
drop, temperature, 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. Since 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.

Table 3. Shaft Diameters and Approximate Weights

SHAFT DIAMETERS

VALVE SIZE, NPS

3

4 31.8 31.8 36 42 50

6

8 38.1 38.1 79 98 135

10 44.5 44.5 --- 208 ---

12

3

4 1‐1/4 1‐1/4 79 93 111

6

8 1‐1/2 1‐1/2 75 217 298

10 1‐3/4 1‐3/4 --- 458 ---

12

1. Spline diameter that connects to actuator versus shaft diameter.

Through Valve Body At Spline End

mm kg

25.4 25.4

25.4 19.1

38.1 38.1

38.1 31.8

53.8 53.8

53.8 50.8

Inches Pounds

1 1
1 3/4

1‐1/2 1‐1/2
1‐1/2 1‐1/4

2‐1/8 2‐1/8
2‐1/8 2

(1)

CL150 CL300 CL600

19 24 26

54 69 93

--- 253 ---

42 52 57

120 152 204

--- 558 ---

APPROXIMATE WEIGHTS

Flanged

Key numbers are shown in figure 9 for NPS 3 through 8 and in figure 10 for NPS 10 and 12.

1. If the valve body (key 1) is to be stored before installation, protect the flange mating surfaces and keep the valve
body cavity dry and clear of foreign material.

2. Install a three‐valve bypass around the control valve assembly if continuous operation will be necessary during
inspection and maintenance of the valve.

3. A CV500 valve is normally shipped as part of a control valve assembly, with a power or manual actuator mounted on
the valve. If the valve and actuator have been purchased separately or if the actuator has been removed from the
valve, mount the actuator according to the actuator instruction manual. Also, adjust the actuator travel using the
Adjusting Actuator Travel procedure in this manual before installing the valve; the required measurements cannot
be made with the valve installed.

4. Before starting the actual installation of the valve, determine the proper installation orientation of the V‐notch ball
(key 2) and actuator. Determine the flow direction of the process fluid through the valve. See figure 2.

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Instruction Manual

D101640X012

Figure 2. Index Marks for Actuator Lever Orientation

CV500 Valve

June 2017

ACTUATOR

MOUNTING STYLE

STYLE A
(PDTC)

RIGHT‐
HAND

STYLE B
(PDTO)

F

R

F

R

VALVE OPEN

1

ACTUATOR POSITION

234

F

STYLE C
(PDTO)

R

LEFT‐
HAND

F

STYLE D
(PDTC)

R

NOTES:

1. ARROW ON LEVER INDICATES DIRECTION OF ACTUATOR THRUST TO CLOSE VALVE.

2. PDTC=PUSH DOWN TO CLOSE; PDTO=PUSH DOWN TO OPEN.

3. F=FORWARD FLOW; R=REVERSE FLOW.

C0741

5

CV500 Valve

June 2017

Instruction Manual

D101640X012

Line Studs (Key 36)

(1)

Valve

Size, NPS

3

4

6

8

Valve

Size, NPS

3

4

6

8

1. These bolts may be installed from either end of the valve body.

PN Qty Bolt Size

PN 10‐40 6 M16 x 2 260

PN63 6 M20 x 2.5 300

PN100 6 M24 x 3 325

PN10 and 16 6 M16 x 2 285

PN25 and 40 6 M20 x 2.5 300

PN63 6 M24 x 3 325

PN100 6 M27 x 3 355

PN10 and 16 5 M20 x 2.5 350

PN25 and 40 5 M24 x 3 375

PN10 10 M20 x 2.5 350

PN16 10 M20 x 2.5 350

PN25 10 M24 x 3 375

PN40 10 M27 x 3 390

CL Qty Bolt Size

150 4 5/8‐11 UNC 10.62

300 6 3/4‐10 UNC 11.12

600 6 3/4‐10 UNC 11.50

150 6 5/8‐11 UNC 11.44

300 6 3/4‐10 UNC 12.12

600 6 7/8‐9 UNC 13.62

150 5 3/4‐10 UNC 13.62

300 9 3/4‐10 UNC 14.38

150 8 3/4‐10 UNC 13.62

300 10 7/8‐9 UNC 15.38

M

Bolt Length,

mm

Bolt Length,

Inch

Cap Screws (Key 37)

Valve

Size, NPS

3

4

Valve

Size, NPS

3

4

PN

PN 10‐40 4 M16 x 2 50 60

PN63 4 M20 x 2.5 60 73

PN100 4 M24 x 3 70 85

PN10 and 16 4 M16 x 2 50 60

PN25 and 40 4 M20 x 2.5 60 73

PN63 4 M24 x 3 70 85

PN100 4 M27 x 3 80 97

CL

150 --- --- --- ---

300 4 3/4‐10 UNC 2.38 2.88

600 4 3/4‐10 UNC 2.38 2.88

150 4 5/8‐11 UNC 2.00 2.44

300 4 3/4‐10 UNC 2.38 2.88

600 4 7/8‐9 UNC 2.75 3.38

Line Studs (Key 36)

Valve

Size, NPS

6

8

Valve

Size, NPS

6

8

1. Use instead of cap screws.

PN Qty Bolt Size

PN10 and 16 6 M20 x 2.5 110

PN25 and 40 6 M24 x 3 125

PN10 4 M20 x 2.5 110

PN16 4 M20 x 2.5 110

PN25 4 M24 x 3 125

PN40 4 M27 x 3 135

CL Qty Bolt Size

150 6 3/4‐10 UNC 5.00

300 6 3/4‐10 UNC 5.00

150 --- --- ---

300 4 7/8‐9 UNC 5.62

N P

Qty

Qty

Bolt Size

Bolt Size

Bolt Length,mmOverall

Bolt Length,

(1)

R

Inch

Length, mm

Overall

Length, Inch

Bolt Length,

mm

Bolt Length,

Inch

Note

For control valves used in slurry service, mount the actuator and install the control valve so that the V‐notch ball rotates above the
valve drive shaft (refer to figure 2), if possible.

5. Before installing the valve, make sure the flow direction arrow (key 32) on the valve (key 1) matches the actual
process fluid flow direction through the valve for the application where the valve will be installed.

Note

For best shutoff performance, install the valve with the drive shaft horizontal and the Vee‐Ball closing in the downward direction
for standard right hand mounting.

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Instruction Manual

D101640X012

CV500 Valve

June 2017

6. Install the flange gaskets and insert the valve between the mating pipeline flanges. Use flat sheet gaskets
compatible with the process media, or spiral wound gaskets with compression‐controlling center rings.

7. Install the line bolts and nuts; then, tighten them using accepted bolting procedures. These procedures include, but
are not limited to, lubricating the line bolts and hex nuts and tightening the nuts in a crisscross sequence to ensure
proper gasket load.

8. If a purge is desired for the purged bearing construction, remove the pipe plugs (keys 29 and 24) and install the
purge lines. Purge pressure should be greater than the pressure within the valve and the purge fluid should be as
clean as possible.

WARNING

A CV500 drive shaft is not necessarily grounded when installed in a pipeline unless the shaft is electrically bonded to the
valve.

To avoid personal injury or property damage resulting from the effects of a static electricity discharge from valve
components in a hazardous atmosphere or where the process fluid is combustible, electrically bond the drive shaft (key 3)
to the valve according to the following step.

Note

Standard CV500 packings (key 13) are composed either entirely of conductive packing rings (graphite ribbon packing) or partially
of conductive packing rings (a carbon‐filled PTFE female adaptor with PTFE V‐ring packing or a graphited‐composition packing ring
with PTFE/composition packing) in order to electrically bond the shaft to the valve body. Alternate shaft‐to‐valve body bonding is
available for hazardous service areas where the standard packing is not sufficient to bond the shaft to the valve (see the following
step).

9. For hazardous applications, attach the bonding strap assembly (key 131, figure 3) to the shaft with the clamp (key
130, figure 3) and connect the other end of bonding strap assembly to the valve body with the cap screw (key 25,
figure 3).

10. Connect pressure lines to the actuator as indicated in the actuator instruction manual. When a manual actuator
(handwheel) is used with a power actuator, install a bypass valve on the power actuator (if not already supplied) for
use during manual operation.

Figure 3. Optional Shaft‐to‐Body Bonding Strap Assembly

ACTUATOR

A

A

37A6528‐A
A3143‐2

VALVE BODY

VIEW A‐A

7

CV500 Valve

June 2017

Instruction Manual

D101640X012

WARNING

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. Check with your process or safety engineer for any
additional measures that must be taken to protect against process media.

If the valve has ENVIRO‐SEAL™ live‐loaded packing installed, readjustment will probably not be required. See the
instruction manual titled Fisher ENVIRO‐SEAL Packing System for Rotary Valves (D101643X012

) for packing
instructions. If you wish to convert your present packing arrangement to ENVIRO‐SEAL packing, refer to the retrofit
kits listed in the parts kit sub‐section near the end of this manual.

Maintenance

WARNING

Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before performing
any maintenance operations:

D Do not remove the actuator from the valve while the valve is still pressurized.

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 Always wear protective gloves, clothing, and eyewear when performing any maintenance operations.

D The valve packing area 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.

D Check with your process or safety engineer for any additional measures that must be taken to protect against process

media.

Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection
and replacement depends upon the severity of service conditions.

Packing Maintenance

Key numbers refer to figure 9 for NPS 3 through 8 and to figure 10 for NPS 10 and 12 unless otherwise indicated.

Note

For the ENVIRO‐SEAL packing system, refer to the Parts List section for retrofit kits, parts kits, and individual parts (see figures 11
and 12). Refer to separate ENVIRO‐SEAL instruction manual (D101643X012

Standard ENVIRO‐SEAL packing systems can be used in vacuum service with packing rings in the standard orientation. It is not
necessary to reverse the ENVIRO‐SEAL PTFE packing rings.

8

) for maintenance instructions.

Instruction Manual

D101640X012

CV500 Valve

June 2017

Stopping Leakage

All maintenance procedures in this section may be performed with the valve body (key 1) in the line.

For packings other than spring‐loaded packing, leakage around the packing follower (key 14) may be stopped by
tightening the packing flange nuts (key 16). If leakage cannot be stopped in this manner, replace the packing
according to the Replacing Packing procedure in this manual.

If the packing is relatively new and tight on the drive shaft (key 3), and if tightening the packing nuts does not stop
leakage, it is possible that the shaft is worn or nicked so that a seal cannot be made. If the leakage comes from the
outside diameter of the packing, it is possible that the leakage is caused by nicks or scratches on the packing box wall.
Inspect the shaft and packing box wall for nicks or scratches when performing the following procedures.

Replacing Packing

Note

If the valve has ENVIRO‐SEAL live‐loaded packing installed, see the manual entitled Fisher ENVIRO‐SEAL Packing System for Rotary
Valves (D101643X012

This procedure may be performed without removing the actuator from the valve if adding PTFE/composition packing
rings as a temporary measure. However, the actuator must be removed if replacing any other kind of packing or if the
metal packing parts (keys 14, 17, and, if used, 18) need to be replaced.

).

WARNING

Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.

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. Use lock‐out procedures to be sure that the above measures stay in
effect while you work on the equipment.

CAUTION

To avoid increased leakage, increased valve component wear or possible damage to the valve body, ball, shaft, and
bearings resulting from a sharp blow to the shaft, use a wheel puller to separate the actuator parts from the drive shaft.

Do not drive the actuator parts off the drive shaft since this could move the valve bearings, shaft, and ball away from
proper alignment, causing improper seating of the ball. Such misalignment may result in damage to valve components if
the valve is returned to service without disassembly and inspection of the valve ball alignment.

2. If necessary, remove the cap screws (key 25) and hex nuts (key 26). Then remove the actuator while referring to the

actuator instruction manual for assistance.

3. Remove the packing nuts (key 16). For NPS 3 through 8, remove the packing follower (key 14). For NPS 10 and 12,

remove the packing flange (key 45) and then remove the packing follower (key 14).

CAUTION

In the following step, take care not to scratch the valve shaft or packing box wall, as this may cause leakage.

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June 2017

Instruction Manual

D101640X012

4. Remove the old packing rings (key 13), packing box ring (key 17), and, if used, the lantern ring (key 18). Do not

scratch the valve shaft or packing box wall; scratching these surfaces could cause leakage. Clean all accessible metal
parts and surfaces to remove particles that would prevent the packing from sealing.

5. Whenever you are installing new packing, be sure the ball (key 2) is closed while you install and tighten the new

packing. Install the new packing rings and packing box ring by stacking the parts as shown in figure 4. Make sure
split rings are arranged so that the splits do not line up to form a leak path. Then slide the stack into the packing box
as far as they will go while being careful to avoid trapping air among the rings.

6. Install the packing follower (key 14), and, for NPS 10 and 12, also install the packing flange (key 45). Install the nuts

(key 16), and tighten them far enough to stop leakage under normal conditions.

7. Mount the actuator while referring to the actuator mounting procedures in the actuator instruction manual.

Complete the Adjusting Actuator Travel procedure in this manual before installing the valve in the pipeline. This is
necessary due to the measurements that must be made during the actuator adjustment process.

8. When the control valve is being put back into operation, check the packing follower for leakage, and retighten the

packing nuts as necessary.

Replacing Retainer, Seat Ring, and Face Seals

This procedure is to be performed if the control valve is not shutting off properly, if installing a different seat ring, or if
seat ring inspection is necessary. The actuator and valve must be removed from the pipeline; however, the actuator
may remain mounted during this procedure. Key numbers refer to figure 9 for NPS 3 through 8 and to figure 10 for
NPS 10 and 12 unless otherwise indicated.

A retainer tool is required to remove the retainer (key 5). If specifically ordered, a tool is supplied with the valve; a tool
can also be ordered individually by referencing key 33 of the Parts List. If desired, a tool can be machined using the
dimensions shown in figure 5.

CAUTION

During assembly, handle the retainer, seat ring, and face seals carefully. Critical areas that must be protected are the
threads and inner surface of the retainer (key 5), the sealing surfaces of the face seals (key 8), the face seal grooves in the
seat ring (key 4), the shutoff surface of the seat ring, and the face seal surface in the valve body.

A new retainer gasket (key 11) is required whenever the retainer (key 5) is removed. Other parts that are in good
condition can be reused.

Disassembly

WARNING

Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.

Table 4. Assembly Clearance

PROCESS

TEMPERATURE

To 260_C

(1)

(500_F)

Over 260_C

(2)

(500_F)

1. Standard Trim

2. Special High Temperature Trim

mm Inches

Minimum Maximum Minimum Maximum

0.08 0.30 0.003 0.012

0.20 0.43 0.008 0.017

SEAT RING AND RETAINER CLEARANCE

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Instruction Manual

D101640X012

Figure 4. Packing Arrangements

ZINC
WASHERS
(KEY 28)

LEAKOFF ARRANGEMENT

FEMALE
ADAPTOR

PACKING

RINGS
MALE
ADAPTOR

LANTERN

RING

(KEY 18)

PACKING

BOX RING

(KEY 17)

PRESSURE SERVICE

PACKING
RING (KEY 13)

LANTERN RING
(KEY 18)

PACKING
BOX RING
(KEY 17)

ZINC
WASHERS
(KEY 28)

DOUBLE PACKING ARRANGEMENT

BRAIDED PTFE COMPOSITION & GRAPHITE RIBBON

DOUBLE PACKING ARRANGEMENTS

VACUUM SERVICE

LANTERN
RING
(KEY 18)

PACKING
BOX RING
(KEY 17)

LANTERN
RING
(KEY 18)

PACKING
BOX RING
(KEY 17)

PRESSURE‐VACUUM SERVICE

PTFE/V‐RING DOUBLE PACKING ARRANGEMENTS

PACKING
RINGS (KEY 13)

LANTERN RINGS
(KEY 18)

PACKING
BOX RING
(KEY 17)

CV500 Valve

June 2017

LANTERN
RING
(KEY 18)

PACKING
BOX RING
(KEY 17)

ZINC
WASHERS
(KEY 28)

FOR PURGED BEARING

GRAPHITE RIBBON OR

PTFE‐COMPOSITION PACKING

NOTES:
INCLUDES ZINC WASHERS (KEY 28) FOR GRAPHITE

1

RIBBON PACKING ONLY
INCLUDED IN PTFE/V‐RING PACKING SET (KEY 13).

2

FOR ONLY PTFE/BOUND‐COMPOSITION PACKING,

3

TOP RING IS CONDUCTIVE GRAPHITE FILAMENT RING.

C0587‐4

CONSTRUCTION

SINGLE PACKING ARRANGEMENTS

PACKING
RINGS (KEY 13)

LANTERN
RINGS
(KEY 18)

PACKING
RING (KEY 13)

PACKING
BOX RING
(KEY 17)

FOR PURGED BEARING

CONSTRUCTION

PTFE V‐RING

FEMALE

ADAPTOR
PACKING
RINGS

MALE
ADAPTOR

LANTERN
RING
(KEY 18)

PACKING
BOX RING
(KEY 17)

11

CV500 Valve

June 2017

Figure 4. Packing Arrangements (Continued)

ANTI-EXTRUSION
RING (KEY 106)

PACKING RING
(KEY 108)

ANTI-EXTRUSION
RING (KEY 109)

LANTERN RING
(KEY 110)

ANTI-EXTRUSION
RING (KEY 106)

PACKING RING
(KEY 108)

ANTI-EXTRUSION
RING (KEY 109)

PACKING BOX RING
(KEY 107)

DOUBLE PTFE PACKING IN
A STANDARD DEPTH BOX

Instruction Manual

GRAPHITE PACKING SET
(KEY 105)

PACKING BOX RING
(KEY 107)

GRAPHITE PACKING

IN A STANDARD DEPTH BOX

D101640X012

C0774‐1

PACKING FLANGE
STUD (KEY 100)

PACKING FLANGE
NUT (KEY 101)

PACKING FLANGE
(KEY 102)

SPRING PACK
ASSEMBLY
(KEY 103)

PTFE PACKING
SET (KEY 105)

ANTI-EXTRUSION
RING (KEY 106)

PACKING BOX RING
(KEY 107)

DOUBLE PTFE PACKING WITH

LEAKOFF AND IN A DEEP

PACKING BOX

PACKING BOX RING
(KEY 107)

ANTI-EXTRUSION
RING (KEY 106)

PACKING RING
(KEY 108)

ANTI-EXTRUSION
RING (KEY 109)

LANTERN RING
(KEY 110)

ANTI-EXTRUSION
RING (KEY 106)

PACKING RING
(KEY 108)

ANTI-EXTRUSION
RING (KEY 109)

PACKING BOX RING
(KEY 107)

SINGLE PTFE PACKING

IN A STANDARD DEPTH BOX

PTFE/COMPOSITION OR GRAPHITE ENVIRO‐SEAL PACKING ARRANGEMENTS

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. Use lock‐out procedures to be sure that the above measures stay in
effect while you work on the equipment.

2. Remove line bolting. Then, remove the control valve from the pipeline and place the valve on a flat surface with the
retainer (key 5) facing up.

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3. Rotate the drive shaft (key 3) to move the ball (key 2) into the open position.

Note

The retainer (key 5) was installed at the factory using the torque listed in figure 5.

CAUTION

After performing the following procedures, place the retainer, the seat ring, and both face seals on a protected, flat surface
where the threads and inner surface will not be contaminated or damaged.

4. Remove the retainer (key 5) by engaging the retainer tool, attaching an impact wrench or other suitable tool, and
unscrewing the retainer. Inspect the retainer. Place it on a protected, flat surface where the threads and inner
surface will not be contaminated or damaged.

5. Remove the retainer gasket (key 11). Inspect the gasket surface in the valve body.

6. Lift out the seat ring (key 4) and both face seals (key 8). Inspect the parts and place them on a flat, protected
surface.

7. Inspect the shutoff surface of the V‐notch ball. If it is worn, nicked, or scratched, proceed to the Replacing Ball,
Shaft, and Bearings procedure in this manual. If the parts are in good condition and do not require replacement,
continue to the Assembly procedure in this manual.

Assembly

WARNING

Seat ring installation requires that the ball (key 2) remain in the open position.

The ball closes with a shearing, cutting motion, which could result in personal injury. To avoid personal injury or damage to
tools, valve parts, or other items resulting from the ball closing, prevent against ball travel by using travel stops, manual
actuators, constant supply pressure to a pneumatic actuator, or other steps as appropriate. When installing the seat ring,
keep hands, tools, and other objects out of the valve.

1. Apply enough supply pressure to the actuator to open the ball, or take other steps to hold the ball open.

2. Clean the valve body, the retainer threads, the retainer gasket surface, and the seat ring sealing surface.

3. Using either face seals (key 8) in good condition or new face seals, place one seal in the seat ring cavity of the valve
body.

Note

The seat ring (key 4) may have one or two shutoff surfaces. The shutoff surfaces are the narrow, rounded edges of the seat ring
bore. Inspect the seat ring and locate the shutoff surfaces before proceeding.

Make sure the ball (key 2) is open while you install the seat ring (key 4) and retainer ring (key 5). Before installing the
seat ring, open the ball or plug.

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Table 5. Data for Making and Using the Retainer Tool

VALVE

SIZE,

NPS

3 79.2 33.3 7.9 41.4 7.9 19.0 3.12 1.31 .31 1.62 .31 .75

4 104.6 33.3 7.9 41.4 7.9 25.4 4.12 1.31 .31 1.62 .31 1.00

6 155.4 38.1 11.2 63.5 11.2 25.4 6.12 1.50 .44 2.50 .44 1.00

8 203.2 50.8 11.2 101.6 11.2 38.1 8.00 2.00 .44 4.00 .44 1.50

10 241.3 50.8 11.2 127.0 19.1 38.1 9.5 2.00 .44 5.00 .75 1.50

12 273.0 50.8 11.2 127.0 25.4 38.1 10.75 2.00 .44 5.00 1.00 1.50

A B D F G

mm Inches

H

(SQUARE)

A B D F G

Table 6. Data for Making and Using the Retainer Tool

VALVE SIZE, NPS

3 515 380

4 1170 860

6 2305 1700

8 3120 2300

10 4750 3500

12 6100 4500

NSm LbfSft

RETAINER TORQUE

H

(SQUARE)

Figure 5. Data for Making and Using the Retainer Tool

B1899‐1

RETAINER TOOL FOR NPS 3 THROUGH 12 VALVES

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Insert a screwdriver, pry bar, or similar tool between the lower ear of the ball and the valve body. Use the pry to move
the ball tightly against the thrust washer and bearing stop (key 7) on the actuator side of the valve. Keep the ball in
that position until you finish installing the seat ring.

4. Insert the seat ring into the seat ring cavity with the correct shutoff surface facing the V‐notch ball and shaft. The
seat ring will cover the face seal installed in step 3.

5. Place the second face seal (key 8) on the seat ring (key 4).

6. Apply anti‐seize lubricant to the gasket surface in the valve body. Install the gasket (key 11), while making certain
that the concave surface of the gasket is up (hump surface of gasket down).

7. Apply anti‐seize lubricant to the threads and bottom of the retainer (key 5) only in the area that contacts the gasket.
Thread the retainer into the valve body.

8. Refer to figure 5. Find the correct retainer torque for the valve size. With the appropriate tool, tighten the retainer
to the torque listed in figure 5.

9. A gap between the seat ring (key 4) and retainer (key 5) allows the seat ring to self‐center. Applying the proper
amount of torque during installation should position the retainer and seat ring properly. Use a feeler gage to
measure between the parts as shown in figures 9 and 10, making certain the necessary clearance exists. Compare
the measured gap to the clearance in table 4; proceed as follows:

D If the measured clearance is within table values, proceed to the next step.

D If the measured gap is larger than the maximum, tighten the retainer‐‐apply more torque than that listed in figure 5,

if necessary, until the clearance is within maximum and minimum values.

D If the measured clearance is smaller than the minimum, remove the retainer, seat ring, and face seals, clean the

parts, and reassemble so as to obtain the necessary minimum clearance.

10. Perform the Adjusting Actuator Travel procedure in this manual and then install the control valve in the pipeline.

Replacing Ball, Shaft, and Bearings

Perform this procedure to replace the ball (key 2), expansion pin (key 9), taper pin (key 10), drive shaft (key 3), follower
shaft (key 38), groove pins (key 39), or bearings (keys 6 and 42). These parts are independently replaceable; for
example, installing a new ball does not require replacing a reusable valve shaft or expansion pin assembly. For key
numbers refer to figure 9 for NPS 3 through 8 and to figure 10 for NPS 10 and 12 unless otherwise indicated.

Disassembly

WARNING

To avoid personal injury resulting from contact with edges of the V‐notch ball (key 2) and seat ring (key 4) during ball
rotation, stay clear of its edges when rotating the ball. To avoid damage to tools, valve parts, or other items resulting from
V‐notch ball rotation, keep tools and other property away from the edges of the ball.

The ball closes with a shearing, cutting motion, which could result in personal injury. When the actuator is removed from
the valve, the ball/shaft assembly may suddenly rotate, resulting in personal injury or property damage. To avoid injury or
damage, carefully rotate the ball/shaft assembly to a stable position in the valve body after the actuator is disconnected.

CAUTION

To avoid increased leakage, increased valve component wear or possible damage to the valve body (key 1), ball (key 2),
drive shaft (key 3), follower shaft (key 38), and bearings (keys 6 and 42) resulting from a sharp blow to the actuator or valve
parts, use a wheel puller to separate the actuator parts from the valve drive shaft.

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Do not drive the actuator parts off the valve drive shaft since this could move the valve bearings, shafts, and ball away from
proper alignment, causing improper seating of the ball. Such misalignment may result in damage to valve components if
the valve is returned to service without disassembly and inspection of the ball alignment.

WARNING

Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.

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. Use lock‐out procedures to be sure that the above measures stay in
effect while you work on the equipment.

2. Remove the actuator cover. Note the actuator orientation with respect to the valve body and the lever orientation
with respect to the valve drive shaft (see figure 2). Remove the lever but do not loosen the actuator turnbuckle
adjustment. Remove the actuator mounting screws and nuts, and remove the actuator. If necessary, refer to the
actuator instruction manual for assistance.

3. With the valve body (key 1) out of the pipeline, loosen the packing nuts (key 16). If the packing is to be reused, do
not remove it. However, Emerson recommends that the packing be replaced whenever the drive shaft is removed.

Table 7. Data for Tapped Holes on Valve Shaft

SHAFT DIAMETER

VALVE SIZE, NPS

3

4 31.8 31.8 1.25 1.25 3/8‐16

6

8 38.1 38.1 1.50 1.50 1/2‐13

10 44.5 44.5 1.75 1.75 1/2‐13

12

Through Valve At Spline End Through Valve At Spline End

mm Inches

25.4 25.4 1.00 1.00 3/8‐16

25.4 19.1 1.00 0.75 5/16‐18

38.1 38.1 1.50 1.50 1/2‐13

38.1 31.8 1.50 1.25 3/8‐16

53.8 53.8 2.12 2.12

53.8 50.8 2.12 2.00

THREAD

SIZE,

UNC

3/4‐10

4. Rotate the V‐notch ball (key 2) to the fully open position.

5. Drive out the groove pin (key 39) that secures the ball (key 2) to the follower shaft (key 38). Remove the groove pin
from the ball ear in the direction shown in figure 6.

Using a pin punch and hammer, firmly strike the chamfered end of the expansion pin through the smaller hole. You
may need to bend the pin or drill the pin before it can be completely removed.

Remove both pins from the ball ear in the direction shown in figure 6. Driving the pins in the other direction will
tighten the pins.

6. For NPS 3 through 8, remove the pipe plug (key 29). Using a punch, drive the follower shaft (key 38) into the center
of the ball (key 2). Use care to avoid dropping the follower shaft.

7. For NPS 10 and 12, remove the hex nuts (key 44), and then remove the bottom flange (key 40). Thread a bolt into
the end of the follower shaft and pull the follower shaft out of the valve. Refer to table 7 for thread sizes. The
bearing (key 6) may come out with the follower shaft.

8. For NPS 3 through 8, refer to figure 6. The expansion pin (key 9) and the taper pin (key 10) inside of it are holding
the ball in position on the drive shaft. Find the larger hole in the ball ear where these pins enter the ear. On the

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opposite side of the ear is a smaller hole where the chamfered end of the expansion pin rests on the inner lip of the
hole.

9. For NPS 10 and 12, drive out the groove pin that secures the ball to the drive shaft. Remove the groove pin from the
ball ear in the direction shown in figure 6.

WARNING

To avoid personal injury or damage to tools, valve parts, or other items resulting from the ball (key 2) falling from the valve
body, support the ball to prevent it from falling as the drive shaft (key 3) is being removed.

10. Pull the drive shaft (key 3) from the valve body. If the shaft cannot be removed by hand, attach a slide hammer or
similar tool to the spline end of the shaft that was attached to the actuator. If the shaft has a tapped hole at the
spline end of the shaft, refer to table 7 for thread sizes.

11. Remove the ball (key 2), and thrust washers (key 12) from the valve body. (If using 17‐7PH thrust washers there will
be two, if using alloy 6 there will only be one thrust washer.)

Figure 6. Taper and Expansion Pin Removal from Ball and Drive Shaft

DRIVE PINS OUT
FROM THIS END
(SMALLER HOLE)

E0575

Note

For NPS 3 through 8, two shaft bearings (key 6) are located inside the valve body on either side of the ball. Only one of these two
bearings is identified by key 6. The other bearing is located along the drive shaft on the other side of the V‐notch ball.

For NPS 10 and 12, there are two shaft bearings. One is identified as key 6, and the other is identified as key 42.

SLASH MARK ON SPLINED
END OF SHAFT

12. If the shaft bearings are to be replaced, remove the packing (key 13).

13. If the bearing closest to the packing (key 6 on NPS 3 through 8 and key 42 on NPS 10 and 12) requires replacement
and cannot be removed by hand, press it out using a ram with dimensions as given in figure 7. The ram has a smaller
diameter than the bearing stop (key 7) so the bearing stop need not be removed when pressing out the bearing on
the drive shaft. Insert the ram through the packing box and press the bearing into the valve body cavity. Take care
not to move the bearing stop when pressing out the bearing.

14. For NPS 3 through 8, if the second bearing (key 6) requires replacement and cannot be removed by hand, use one
of the following methods:

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D Knock or pry the bearing out, or

D Use the valve drive shaft as a piston to drive the bearing from the valve body. To accomplish this, install the pipe

plug (key 29). Fill the bearing bore with a heavy grease and then insert the end of the shaft back through the valve
body and into the grease‐filled bearing. Protect the splined end of the shaft with, for example, a block of wood; then
strike the protected end. When the shaft is struck, it will act as a piston, pushing the grease into the bearing bore.
The grease will then force the bearing out of the bore and farther along the shaft. Soon, the bearing will be
positioned for easy removal.

15. For NPS 10 and 12, if the bearing (key 6) on the follower shaft requires replacement and cannot be removed by
hand, press it out using a ram with dimensions as given in figure 7. Press the bearing into the valve body cavity.

16. If used, remove the O‐rings (keys 19 and 20) from the bearings. Also, for NPS 3 through 8, remove the pipe plug
(key 29).

Assembly

Note

Before starting to assemble the valve components, place the valve body (key 1) on a flat surface with the retainer (key 5) facing
down as shown in figure 8. This orientation of the valve allows easier installation of the V‐notch ball.

1. Thoroughly clean the parts before assembly.

Table 8. Ram Dimension for Bearing Removal

VALVE

SIZE, NPS

3

4

6

8

10

12

mm Inches mm Inches

27.8

27.4

34.1

33.7

42.1

41.7

42.1

41.7

48.4

48.0

57.8

57.4

A MAX.

MIN.

Figure 7. Ram Dimension for Bearing Removal

L

A

1.094

1.078

1.344

1.328

1.656

1.641

1.656

1.641

1.905

1.890

2.275

2.260

L

165 6.50

165 6.50

197 7.75

229 9.00

229 9.00

260 10.25

A3308

2. If O‐rings (keys 19 and 20) are used, apply a small amount of lubricant to the O‐rings so the bearings will easily slide
into the valve body. Insert the smaller O‐ring (key 20) inside the bearing and the larger O‐ring (key 19) around the
outside of the bearing.

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CAUTION

To avoid damage to O‐rings resulting from contact with sharp edges within the bearing holes, use appropriate care when
installing the O‐rings.

3. Slide the bearing for the follower shaft (key 6) located opposite the packing box and, if used, O‐rings (keys 19 and

20) into the valve body. For NPS 10 and 12, make certain the groove located on the outside diameter of the bearing
is positioned towards the bottom flange side of the valve body.

4. Slide the bearing located on the packing box side (key 6 for NPS 3 through 8 and key 42 for NPS 10 and 12) into the
valve body and against the bearing stop.

5. For NPS 3 through 8, inspect the drive shaft (key 3). Insert the shaft end opposite the splined end into the packing
box and through the bearing that was previously installed in the packing box in step 4. Stop before the drive shaft
enters the main valve body cavity. Support the splined end of the shaft.

For NPS 10 and 12, inspect the drive shaft (key 3). Insert the splined shaft end with the groove pin hole into the
packing box and through the bearing that was previously installed in step 4. Stop before the drive shaft enters the
main valve body cavity. Support the end of the drive shaft that extends out from the valve body.

6. For NPS 3 and 4, insert the follower shaft through the outside of the ear of the V‐notch ball that has the smaller
diameter (non‐stepped) hole. Push the follower shaft through the ear until the end of the follower shaft with the
groove pin hole is between the ears and the other end of the follower shaft is flush with the outside edge of the ear.
Place the ball in the valve body cavity with the ear containing the follower shaft adjacent to the follower shaft bore.
Slide the follower shaft through the ear of the ball and into the bearing (key 6) which was previously installed in step

3.

For NPS 6 and 8, locate the smaller diameter hole in the V‐notch ball ear. Place the ball in the valve body cavity with the
ear containing the smaller diameter hole adjacent to the follower shaft bore. Place the follower shaft between the ears
of the ball. Slide the follower shaft through the ear of ball and into the bearing (key 6) that was previously installed in
step 3.

For NPS 10 and 12, place the ball in the valve body cavity. Slide the follower shaft, splined end first, through the
bearing (key 6) that was previously installed in step 3, and into the ear of the ball. Align the groove pin hole in the
follower shaft with the hole in the ball ear.

7. For NPS 3 through 8, position the ball so that the larger hole is facing up, away from the seat ring and retainer.
Determine the correct orientation of the V‐notch ball (key 2) required by the specific installation orientation of the
valve and the flow direction of the process fluid. See figure 2.

For NPS 10 and 12, determine the correct orientation of the V‐notch ball (key 2) required by the specific installation
orientation of the valve and the flow direction of the process fluid. See figure 2. The groove pin hole in both the drive
shaft (key 3) and the ear of the ball are offset from center. Make certain the holes will align.

Note

Before proceeding, inspect the V‐notch ball position once again to ensure the correct orientation. If the ball is not properly
installed, it will not rotate properly and will not shutoff in service.

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8. Hold the thrust washer (key 12) between the ball (key 2) and the bearing installed next to the packing (key 6 for NPS
3 through 8 and key 42 for NPS 10 and 12).

Note

To obtain the correct thickness, two thrust washers (key 12) are needed when using 17‐7PH. When using alloy 6, only one thrust
washer is needed to get the correct thickness.

For NPS 10 and 12, align the zero mark located on the end of the drive shaft with the zero mark located on the ball ear.

For all sizes, slide the valve drive shaft (key 3) from the packing box into the valve body through the thrust washer and

into the ear of the ball.

9. For NPS 3 through 8, secure the ball in the correct open position. Locate the slash mark on the splined end of the
valve drive shaft. Rotate the drive shaft until the slash mark is vertical and facing out from the center of the shaft in
the same direction as the ball seating surface. See figure 8.

Figure 8. Taper and Expansion Pin Insertion into Ball and Drive Shaft

PINS GO IN FROM
THIS END (LARGER HOLE)

SLASH MARK
ON SPLINED
END OF SHAFT

BENCH

E0576

Note

When the valve drive shaft is correctly positioned for NPS 3 through 8, the slash mark on the splined end will be parallel with the
ball shutoff surface. See figure 8. If the ball is not properly aligned with the slash mark, the valve will not function correctly.

Step 9 is not required for NPS 10 and 12 because the drive shaft and the ear of the ball are both splined and were aligned in step 8.

10. Secure the ball to the follower shaft by aligning the groove pin hole in the ball ear and the hole on the opposite side
of this ear with the groove pin hole through the follower shaft (key 38).

11. Use pin punches to drive in the groove pin until it is flush with the surface of the ball ear. Stake both ends of the pin
hole in the ball ear to retain the pin during this step.

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12. Secure the ball to the drive shaft (key 3) as follows:

D For NPS 3 through 8:

a. The holes in both the drive shaft (key 3) and the ear of the ball are offset from center. Make certain the holes in

the ear of the ball will align with the hole in the drive shaft.

Note

If the holes in the ball ear do not line up with the hole in the drive shaft, check the slash mark on the splined end of the shaft. Make
sure the shaft and ball are properly oriented.

b. Place the chamfered end of the expansion pin (key 9) into the larger hole in the ball ear (see figure 8).

CAUTION

To avoid damage to the expansion pin, ball, or drive shaft resulting from the application of excessive force on the expansion
pin, use appropriate care when driving the expansion pin through the ball and drive shaft. Use the correct tool. Do not use
excessive force.

c. Drive the expansion pin into the larger hole until the chamfered end of the pin reaches the inner lip of the smaller

hole on the opposite side of the ball. Closely observe the progress of the pin to avoid striking it after it has
reached the lip of the smaller hole.

d. Place the taper pin (key 10) into the open end of the expansion pin. Drive the taper pin into the expansion pin

until the pins, ball, and drive shaft are snug. Do not attempt to drive either pin flush with the ear.

D For NPS 10 and 12, the groove pin holes in both the drive shaft (key 3) and the ear of the ball are offset from center

and have spline ridges. Make certain the holes in the ear of the ball will align with the hole in the drive shaft. Secure
the ball to the drive shaft by using pin punches and driving in the groove pin until it is flush with the surface of the
ball ear. Make certain that the groove pin goes completely through the drive shaft and into the opposite side of the
ball ear.

13. Rotate the ball by hand to check that it rotates properly. If rotation interferes with the valve body, drive out the
taper and expansion pins (keys 9 and 10) for NPS 3 through 8 and the groove pin (key 39) that fastens the drive shaft
to the ball for NPS 10 and 12. Remove the drive shaft (key 3), and repeat this procedure starting with step 5.

14. For NPS 3 through 8, install the pipe plug (key 29).

15. For NPS 10 and 12, install the gasket (key 41), bottom flange (key 40), and then install and tighten the hex nuts
(key 44). Make sure the pipe plug (key 29) is installed in the bottom flange.

16. If the seat ring (key 4), face seals (key 8), and retainer (key 5) need to be installed, complete the Assembly portion
of the Replacing Retainer, Seat Ring, and Face Seals procedure in this manual. If the seat ring has previously been
installed, proceed to Adjusting Actuator Travel in this manual. If the packing has been removed, be sure to refer to
the Packing Maintenance procedures in this manual to replace the packing before installing the actuator on the
valve.

Adjusting Actuator Travel

Perform this procedure whenever the actuator is removed or disconnected from the valve and whenever the seat ring
and retainer (keys 4 and 5) are removed. Too little actuator travel will increase shutoff leakage; too much travel will
cause excessive ball and seat ring torque and wear.

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Any of the Fisher pneumatic, electric, electrohydraulic, or manual actuators‐‐or any other actuator‐‐must be adjusted
for use with a CV500 valve so that the ball is rotated to the fully closed position. A gap of approximately 0.0254 mm
(0.001 inch) for temperatures to 260_C (500_F) or 0.1524 mm (0.006 inch) for higher temperatures measured
between the seat ring (key 5) and retainer (key 4) indicates the fully closed position.

Note that this gap is also measured when assembling the seat ring, retainer, and face seals to ensure correct assembly.
Measure the gap according to this procedure to ensure proper actuator adjustment. Merely completing the assembly
measurement is not sufficient.

Travel adjustments vary with the type of actuator (some use turnbuckle assemblies; some use externally adjusted
travel stops; others use internal limit switches). Refer to the actuator instruction manual for adjustment instructions.

Note

When mounting the actuator, be sure the ball (key 2) is closed. Do not use a hammer or other tool to drive the actuator lever onto
the valve shaft. Clean the valve shaft and actuator lever splines to be sure the actuator lever will slide on easily.

If the lever does not slide on easily, carefully wedge the ball solidly against the actuator‐side thrust washer using a screw driver or
similar tool in the same location as the pry bar in the installation. Keep the wedge in place while installing the lever, but again, do
not drive on the lever.

Remove the wedge after you have clamped the actuator lever on the valve shaft and connected the lever to the actuator piston
rod or diaphragm rod.

1. Mount the actuator following the instructions in the actuator instruction manual. Refer to figure 2 to select
actuator mounting style and position and to orient the actuator lever with the valve drive shaft (key 3).

2. For actuators with clamped levers, pull the drive shaft (key 3) by hand toward the packing (key 13) so that the ball
(key 2) and thrust washer (key 12) are tight against the bearing closest to the packing (key 6 for NPS 3 through 8
and key 42 for NPS 10 and 12). Clamp the lever to the valve drive shaft.

CAUTION

Do not apply full actuator signal (pressure or power) to the actuator in the next step. A full signal may wedge the ball into
the seat ring. Use a regulated signal source and gradually increase the signal to slowly stroke the actuator.

3. Adjust the actuator travel and stroke the actuator so that the ball is close to but not contacting the seat ring at full
actuator travel. If available on electric actuators, use the manual handwheel to position the plug.

4. Adjust the travel, using a full actuator signal, until the ball contacts the seat ring around its full circumference. This
contact self‐centers the seat ring on the V‐notch ball.

5. Continue to adjust the travel until a gap of approximately 0.0254 mm (0.001 inch) exists between the seat ring and
retainer, as shown in figure 10, at full actuator travel.

6. Refer to the actuator instruction manual to lock the actuator travel adjustment.

Changing Valve Flow Direction

The CV500 valve may be installed in either forward or reverse flow service. Standard flow direction is forward flow
enters the seat ring first, then flows past the V‐notch ball. If changing flow direction is necessary, release all pressure
from the valve and actuator. Remove the control valve assembly from the pipeline and rotate the assembly about the
valve drive shaft to put the retainer end of the valve where the other end was. Refer to the procedure for changing
actuator mounting style if the actuator must be repositioned, and refer to the installation section to install the control
valve assembly. Be sure to reposition the flow direction arrow on the valve.

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Changing Actuator Mounting Style

Refer to figure 2 of this manual and the actuator instruction manual when changing mounting styles or positions.
Right‐hand mounting places the actuator on the right side of the valve as viewed from the upstream side of the valve;
left‐hand mounting places the actuator on the left side of the valve. Remember that the upstream side of the valve
inlet is the retainer end of the valve body for forward flow and the other end of the valve body is the upstream side for
reverse flow.

Complete the Adjusting Actuator Travel procedure in this manual whenever the actuator is removed.

Parts Ordering

A serial number is assigned to each valve body and stamped on the nameplate. Always refer to this serial 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.

or Local Business Partner regarding spare parts or technical information.

Parts Kits

Repair Kits

Repair kits include recommended spares for standard and sealed bearing constructions.

VALVE SIZE, NPS REPAIR KIT NUMBER

3
4
6
8

Parts Included in Kits

Key Number Description

9 Expansion pin 1

10 Taper pin 1

11 Retainer gasket 1

19 O‐ring (sealed bearing only) 2

20 O‐ring (sealed bearing only) 2

RV500X00042
RV500X00052
RV500X00062
RV500X00072

Quantity in Kit

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Retrofit Kits for ENVIRO‐SEAL Packing

Retrofit kits include parts to convert existing CV500 valves with single depth packing box to the ENVIRO‐SEAL packing
box construction. Retrofit kits include single PTFE or graphite packing box construction (see the following table).

VALVE SIZE, NPS

3
4

6 & 8

10
12

Key Description Single PTFE Graphite

100 Packing Stud Packing Stud 2 2

101 Packing Nut Packing Nut 2 2

102 Packing Flange Packing Flange 1 1

103 Spring Pack Assembly Spring Pack Assembly 1 1

105 Packing Set Packing Set 1 1

106 Anti‐Extrusion Washer Anti‐Extrusion Washer 2 ‐ ‐ ‐

107 Packing Box Ring Packing Box Ring 1 1

mm Inches Single PTFE Graphite

25.4

31.8

38.1

44.5

53.8

Parts Included in Kits Quantity in Kit

SHAFT DIAMETER PART NUMBER

1
1‐1/4
1‐1/2
1‐3/4
2‐1/8

RRTYXRT0052
RRTYXRT0062
RRTYXRT0072
RRTYXRT0682
RRTYXRT0722

RRTYXRT0352
RRTYXRT0362
RRTYXRT0372
RRTYXRT0822
RRTYXRT0862

Repair Kits for ENVIRO‐SEAL Packing

Packing boxes in these valves may be deep drilled. If the valve body being repaired has a deep packing box, additional
parts are required. Refer to the Packing Maintenance section in this manual.

VALVE SIZE, NPS

3
4

6 & 8

(1)

10

(1)

12

Parts Included in Kits

Key Number Description

105 Packing Set Packing Set 1 1

106

1. Order individual parts from the Parts List.

2. Included in packing set key 105.

Extrusion Washer

SHAFT DIAMETER PART NUMBER

mm Inches PTFE Graphite

25.4

31.8

38.1

44.5

53.8

Anti‐

1
1‐1/4
1‐1/2
1‐3/4
2‐1/8

Anti‐

Extrusion Washer

RRTYXRT0052
RRTYXRT0062
RRTYXRT0072
RRTYXRT0232
RRTYXRT0252

Quantity in Kit

2 ---

13B8816X092
13B8816X112
13B8816X142
13B8816X152
13B8816X182

(2)

24

Instruction Manual

D101640X012

Figure 9. Fisher CV500 Valve, NPS 3 Through 8

CV500 Valve

June 2017

TCM SEAL

APPLY LUB

KEY NUMBERS NOT SHOWN ARE 28, 30, 31, 33, 36, 37, 130, AND 131

NOTE:

1

MEASURE GAP HERE

42B3374‐A

DOUBLE

PACKING

SEALED

BEARING

25

CV500 Valve

June 2017

Figure 10. Fisher CV500 Valve, NPS 10 and 12

Instruction Manual

D101640X012

APPLY LUB

KEY NUMBERS NOT SHOWN ARE 28, 30, 31, 33, 36, 37, 130, AND 131

NOTE:

1

MEASURE GAP HERE

42B5286‐A

DOUBLE

PACKING

SEALED

BEARING

26

Instruction Manual

D101640X012

Figure 11. Typical ENVIRO‐SEAL Rotary Packing Arrangements with PTFE Packing

42B8445‐B

SINGLE PTFE PACKING

STANDARD DEPTH BOX

14B0095‐A

STACKING ORDER OF
PTFE PACKING RINGS

CV500 Valve

June 2017

42B8445‐B

NOTES:
APPLY LUBRICANT.

1

THESE TWO SURFACES SHOULD REMAIN PARALLEL AS YOU

2

ALTERNATELY AND EVENLY TIGHTEN THE PACKING NUTS (KEY 101).

DOUBLE PTFE PACKING

STANDARD DEPTH PACKING BOX

42B8445‐B

DOUBLE PTFE PACKING WITH LEAKOFF

Figure 12. Typical ENVIRO‐SEAL Rotary Packing Arrangements with Graphite Packing

14B0086‐A

STACKING ORDER OF

GRAPHITE PACKING RINGS

NOTES:
APPLY LUBRICANT.

1

THESE TWO SURFACES SHOULD REMAIN PARALLEL AS YOU ALTERNATELY AND EVENLY TIGHTEN THE PACKING NUTS (KEY 101).

2

42B8445‐B

GRAPHITE PACKING

STANDARD DEPTH BOX

OPTIONAL DEEP PACKING BOX

27

CV500 Valve

June 2017

Instruction Manual

D101640X012

Parts List

Note

Contact your Emerson sales office
Ordering information.

Valve Body (figures 9 and 10)

Key Description

  1 Body/Bearing Assembly    

Keys 1 and 7 are included in the valve body/bearing
 assembly. If a part number is required, contact your

Emerson sales office or Local Business Partner for assistance ‐‐‐
  2* Ball
  3* Drive Shaft
  4* Seat Ring, Full Port/Metal Seat
  5 Retainer Ring
  6* Bearing (2 req'd)
  7 Bearing Stop
  8* Face Seal, (2 req'd)
  9* Expansion Pin, S20910
 10* Taper Pin, S20910
 11* Retainer Gasket
 12 Thrust Washer (2 req'd for 17‐7PH)
 13* Packing Set
 14 Packing Follower
 15 Packing Flange Stud
 16 Packing Flange Nut
 17* Packing Box Ring
 18 Lantern Ring
 19* O‐Ring (for sealed bearings, 2 req'd)
 20* O‐Ring (for sealed bearings, 2 req'd)
 21 Anti‐seize lubricant
 22 Identification Nameplate

or Local Business Partner for Part

(1)

(1 req'd for alloy 6)

Key Description

23 Drive Screw
 24 Pipe plug
 25 Cap Screw
 26 Hex Nut
 28*  Packing Washer (not shown)
 29 Pipe Plug
 30 Nameplate
 32 Flow Arrow
 33 Retainer Tool (Not Shown)
 36 Stud
 37 Cap Screw
 38* Follower Shaft
 39 Groove Pin
 40 Bottom Flange
 41* Gasket, S31603
 42* Drive Bearing
 43 Stud (for bottom flange bolting)
 44 Hex Nut (for bottom flange bolting)
 45 Packing Flange
130 Clamp (Req'd w/non‐conductive packing)
131 Bonding Strap Assembly (Req'd w/non‐conductive packing)

ENVIRO‐SEAL Packing System
(figures 11 and 12)

Key Description

100 Packing Flange Stud
101 Packing Flange Nut
102 Packing Flange
103 Spring Pack Assembly
105* Packing Set
106* Anti‐Extrusion Ring, Composition/graphite
107* Packing Box Ring
108* Packing Ring
109* Anti‐Extrusion Ring
110 Lantern Ring
111 Tag
112 Cable Tie
113 Lubricant

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, Vee-Ball, FIELDVUE, 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

28

E 1991, 2017 Fisher Controls International LLC. All rights reserved.

*Recommended spare parts