Emerson Fisher Vee Ball V150E Instruction Manual

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Fisherr2052 Diaphragm Rotary Actuator

Contents

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

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

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

Specifications 3...............................

Installation 4..................................

Actuator Mounting 5..........................

Maintenance 7.................................

Replacing Diaphragm 8........................

Replacing Diaphragm Plate,

Diaphragm Rod Assembly, and Spring(s) 9......

Changing Or Replacing Actuator Lever 11.........

Positioner Mounting (3610 or DVC6020) 12.......

Top-Mounted Handwheel 12....................

Locking Mechanism 13.........................

Parts Ordering 17...............................

Parts List 17...................................

Figure 1. Fisher Control-Disk™ Valve with

2052 Actuator and DVC6200 Digital Valve Controller

W9425-2

Introduction

Scope of Manual

This instruction manual includes installation, adjustment, operation, maintenance, and parts information for the

Fisher 2052 diaphragm rotary actuator (figure 1). Instructions for the control valve, positioner, manual actuator, and

other accessories are included in separate manuals.

Do not install, operate, or maintain a 2052 actuator 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 Process Management sales office before

proceeding.

Description

2052 spring-and-diaphragm rotary actuators are used on rotary-shaft valve bodies for throttling or on-off applications.

The 2052 may be used for on-off service without a positioner, or it may be used for throttling service with a positioner,

depending on service conditions. The 2052 has an ISO 5211 mating interface that allows installation to non-Fisher

valves. Refer to separate bulletins for valve and positioner information.

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A top-mounted handwheel option is available for infrequent service as a manual actuator. For repeated or daily manual

operation, the unit should be equipped with a side-mounted declutchable 1078 manual actuator. Externally adjustable

travel stops are used to limit the degree of rotation at both ends of the actuator stroke.

The lever for the 2052 actuator is supported by bushings. The lever may be changed to accommodate valve bodies

with different size valve shafts.

Table 1. Fisher 2052 Actuator Specifications

Specifications

Actuator Mounting Connections Splined shaft connection, ISO 5211 actuator-to-bracket connection

Size 1: F07, Size 2: F10, Size 3: F14

Actuator Sizes See table 2

Operating Pressure(1) See table 3

Maximum Diaphragm Casing Pressure Size1,2,and3Actuators:5barg(73psig)

Pressure Connection See table 4

Torque Output See table 3

Actuator Temperature Capabilities(1) -45 to 80_C (-50 to 176_F)

Operation Field reversible between PDTC and PDTO; right- and left-hand mounting, any angle of orientation

Approximate Weight

Size 1: 22.2 kg (49 lb)

Size 2: 54.4 kg (120 lb)

Size 3: 113 kg (250 lb)

Controller/Positioners Available DVC2000, DVC6020, DVC6030, DVC6200, 3610J, 3620J, 4190, C1

Accessories Available 846, 646, 2625, and 67C Series, switches, i2P-100, VBL, DXP, GO™

Handwheel Top-mounted handwheel: Optional on Size 1 and 2 actuators only

Declutchable handwheel: Optional on Size 1, 2, and 3 actuators

Operational Lockout Available for customer-supplied padlock to lock the actuator in the spring-fail position

1. The pressure/temperature limits in this manual should not be exceeded.

Table 2. Actuator and Shaft Size Availability

SHAFT SIZE ACTUATOR SIZE

Inches 123

1/2 available not available not available

5/8 available available not available

3/4 available available available

1not available available available

1-1/4 not available available available

1-1/2 not available not available available

1-3/4 not available not available available

2not available not available available

Table 3. Torque versus Actuator Size

ACTUATOR

SIZE AND

ACTION

OPERATING PRESSURE

2barg(29psig)

(1) 4barg(58psig)

(2)

Torque Torque

NSmlbfSin NSmlbfSin

1(PDTO,PDTC) 25.5 226 51.2 453

2(PDTO,PDTC) 105 930 210 1860

3(PDTO) 327 2890 631 5583

3(PDTC) 280 2479 584 5173

1. Operating pressure up to 3 barg (44 psig) is allowable for single spring construc

tion.

2. Operating pressure up to 5 barg (73 psig) is allowable for dual spring construction.

Table 4. Pressure Connections

ACTUATOR

SIZE

PRESSURE CONNECTION

1/4 NPT 1/2 NPT 3/4 NPT G1/4

1standard optional not

available optional

2standard optional not

available optional

3not

available standard optional not

available

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Table 5. Fisher 2052 Actuator Mounting Styles

MOUNTING ACTION(1)

VALVE SERIES OR DESIGN VALVE SERIES OR DESIGN

BALL/PLUG

ROTATION TO

CLOSE

V150, V200 & V300 CV500

V500

DISK/BALL

ROTATION TO

CLOSE

A11, 8510B, 8532,

8560, 8580,

9500, and

Control-Disk

Valve

Right-Hand PDTC

PDTO

CCW

CCW

A

B

A

B

CW

CW

B

A

Left-Hand PDTC

PDTO

CCW

CCW

D

C

D

C

CW

CW

C

D

Left-Hand

(Optional)(2)

PDTC

PDTO

CW

CW

C

D

NA

NA

NA

NA

NA

NA

1. PDTC–Push-down-to-close, and PDTO–Push-down-to-open.

2. A left hand mounted ball will be required for the NPS 3 through 12 Vee-Ball Series B and the NPS 14 and 16, with or without attenuator.

Figure 2. Fisher 2052 Actuator Mounting Styles

STYLE A

STYLE C STYLE B

STYLE D

FLOW

2

3

42

3

4

POSITION 1

STANDARD

POSITION 1

STANDARD

44

33

22

GE37285-B

FLOW

STYLE D SHOWN

LEFT HAND MOUNTING

VALVE

INLET

STYLE B SHOWN

VALVE

INLET

RIGHT HAND MOUNTING

Specifications

Specifications are shown in table 1 for 2052 actuators. Specifications for actuator operation are stamped on a metal

nameplate attached to the actuator.

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Table 6. Bolting Torque Requirements(1)

DESCRIPTION KEY NUMBER ACTUATOR

SIZE

TORQUE FASTENER LUBRICATION

NSmLbfSft

Rod End Bearing Clamping Bolt

Torque , Key 16

1

2

3

38

180

400

28

130

295

None

End Plate to Housing Bolt

Torque, Key 4

1

2

3

68

120

210

50

90

155

None

Diaphragm Plate to Rod Bolt

Torque, Key 7

1

2

3

27

115

300

20

85

220

Anti-Seize Lubricant

Casing Bolt Torque, Key 8

1

2

3

55

55

55

40

40

40

None

Housing to Yoke Bolt Torque,

Key 28

1

2

3

27

68

245

20

50

180

None

Lever-Spline Clamping Bolt

Torque, Key 15

1

2

3

38

115

175

28

85

130

None

Optional Lockout Kit Mounting

Bolt Torque, Key 53

1

2

3

NA

88

340

NA

65

250

None

1. Exceeding any torque requirements could damage the actuator and impair safe operation.

Installation

WARNING

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

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.

CAUTION

To avoid parts damage, do not apply pressure that exceeds the Maximum Diaphragm Casing Pressure in table 1.

Use pressure-limiting or pressure-relieving devices to prevent the Operating Pressure from exceeding the values shown in

table 3.

The actuator, as it comes from the factory, is normally mounted on a valve body. If the actuator is shipped separately

or if it is necessary to mount the actuator on the valve, perform the procedures presented in the Actuator Mounting

section. Follow the procedures given in the valve instruction manual when installing the control valve in the pipeline.

If a positioner is ordered with the actuator, the pressure connection to the actuator is normally made at the factory. If

it is necessary to make this connection, run tubing of the appropriate size for the diaphragm casing pressure

connection (reference table 4) between the pressure connection and the instrument. Keep the length of tubing or

pipe as short as possible to avoid transmission lag in the control signal.

When the control valve is completely installed and connected to the controlling instrument, check to make sure that

the action is correct (air-to-open or air-to-close) and that the controlling instrument is properly configured for the

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desired action. For successful operation, the diaphragm rod assembly, lever, and valve shaft must move freely in

response to changes in the loading pressure on the diaphragm.

Actuator Mounting

WARNING

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

any maintenance operations:

DDo not remove the actuator from the valve while the valve is still pressurized.

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

DDisconnect 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.

DUse 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.

DSafely vent the power actuator loading pressure.

DUselock-outprocedurestobesurethattheabovemeasures stay in effect while you work on the equipment.

DThe 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.

DCheck with your process or safety engineer for any hazards that may be present from exposure to process media.

Use the following steps to mount the actuator or to change actuator mounting style or position.

Unless otherwise specified, key numbers referenced in the following procedures are shown in figure 7 for the 2052

actuator.

If the Actuator is mounted on a valve body and it is necessary to change mounting style or position, the actuator must

first be separated from the valve body.

1. Isolate the valve body from the process. Release process pressure and vent all actuator pressure.

2. Remove the cover or plug (key 2).

WARNING

To avoid personal injury and equipment damage from moving parts, keep fingers and tools clear while stroking the

actuator with the cover removed.

3. Loosen the cap screw (key 15).

4. Separate the actuator from the valve body by removing the cap screws and nuts which secure the valve to the

mounting yoke (key 27). Proceed to step 5.

If the actuator is not mounted on a valve body ensure the up and down travel stops (see figure 3) are adjusted

correctly to achieve the desired actuator rotation. Use the travel indicator (key 21) and travel scale (key 19) as

reference.

Note

Once each travel stop is properly positioned, adequately tighten the hex nut (key 24) to lock the travel stop in place.

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5. Refer to figure 2 and table 5 for available mounting styles and positions. The actuator is normally positioned

vertically with the valve in a horizontal pipeline.

6. Determine whether the actuator mounting yoke (key 27) will be mounted on the end plate assembly (key 3) side or

on the actuator housing boss side of the actuator. If the desired mounting position and style require moving the

mounting yoke (key 27) and travel indicator components to opposite sides of the actuator, remove the machine

screws (keys 20 and 22), the travel indicator scale (key 19), and the travel indicator (key 21). Remove the cap screws

(key 28) and the mounting yoke (key 27). Install the mounting yoke in the desired position (on the end plate

assembly or on the actuator housing boss). Tighten the mounting cap screws to the torque specified in table 6.

Install the travel indicator components on the opposite side of the actuator.

WARNING

To avoid personal injury or property damage, ensure the travel indicator is installed correctly to coincide with the desired

actuator action. Refer to figure 3 for more information.

Figure 3. Fisher 2052 Actuator Travel Stops and Travel Indication

TRAVEL INDICATOR

SCALE

UP

TRAVEL

STOP

DOWN

TRAVEL

STOP

KEY 22

KEY 20 TRAVEL

INDICATOR

INDICATOR

ORIENTATION

FOR PDTC

INDICATOR

ORIENTATION

FOR PDTO

VIEW A

VIEW A

7. Before sliding the valve shaft into the lever, position the valve ball or disk as follows:

For push-down-to-close action, the valve ball or disk should be in the fully open position.

For push-down-to-open action, the valve ball or disk should be in the fully closed position (see the valve body

instruction manual).

8. Make sure that the index markings on the valve shaft are properly aligned with either the markings on the lever or

thetravelindicatorscalemountingholes.Slidethevalveshaftintothelever.(Seefigure4foronepossible

orientation.) Install the valve mounting cap screws and nuts. Tighten to the torque value given in the appropriate

valve body instruction manual.

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9. Ensure all end play in the valve shaft is removed by directing the valve shaft and control element toward the

actuator as much as possible.

10. Tighten the socket head cap screw (key 15) which compresses the splined lever connection to the valve shaft (see

table 6). Install the cover or plug (key 2) into the access hole in the housing.

CAUTION

When adjusting the travel stop for the closed position of the valve ball or disk, refer to the appropriate valve instruction

manual for detailed procedures. Undertravel or overtravel at the closed position may result in poor valve performance

and/or damage to the equipment.

11. Adjusttheuptravelstop(seefigure3)sothatthevalveball or disk is in the desired position. When adjusting the

up travel stop, ensure the stop is not backed out too far, causing the lever to over-rotate. Over-rotation of the lever

may cause damage to valve components. Avoid over-rotation by adjusting the up travel stop so that the travel

indicator screws (key 22) align with the travel scale screws (key 20). See figure 3.

12. Stroke the actuator and adjust the down travel stop so that the valve ball or disk is in the desired position.

Note

Once each travel stop is properly positioned, adequately tighten the hex nut (key 24) to lock the travel stop in place.

13. Make sure that the travel indicator pointer matches the ball or disk position. Remove and install in the proper

position if necessary.

14. Refer to the table of contents for accessory installation procedures.

Maintenance

Actuator 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. Instructions are given below for

disassembly and assembly of parts. Key numbers referenced in the following steps are shown in figure 7 for the 2052,

except as listed below or otherwise specified in the procedures.

WARNING

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

any maintenance operations:

DDo not remove the actuator from the valve while the valve is still pressurized.

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

DDisconnect 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.

DUse 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.

DSafely vent the power actuator loading pressure.

DUselock-outprocedurestobesurethattheabovemeasures stay in effect while you work on the equipment.

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DCheck with your process or safety engineer for any hazards that may be present from exposure to process media.

Replacing Diaphragm

Isolate the valve body from the process. Release process pressure and vent all actuator pressure.

Disassembly

1. Remove the supply tubing or pipe from the top casing assembly (key 5).

WARNING

To avoid personal injury from precompressed spring force suddenly thrusting parts away from the actuator, spring

compression must first be relieved. Closely follow the instructions below.

Figure 4. Orientation of the Fisher 2052 Actuator Lever into the Housing and Aligning the Actuator to the Valve Shaft

Markings

UP TRAVEL STOP

2. Loosen, but do not remove, all casing cap screws and hex nuts (keys 8 and 9). Ensure there is no spring force to the

top casing assembly (key 5). If spring force is detected against the top casing assembly, ensure the up travel stop

cap screw (key 23) is adjusted correctly to prevent over-rotation of the lever (key 14). Refer to figure 3. The travel

indicator screws (key 22) in the end of the lever should be in alignment with the travel scale screws (key 20). If the

up travel stop is confirmed to be adjusted correctly and force is still detected against the top casing assembly,

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contact your local Emerson Process Management Instrument and Valves Service Center. Alternatively, replace two

oppositely located casing cap screws (key 8) with 100 mm (4 inch) long fully threaded M10 cap screws of ISO 898-1

Property Class 8.8 material or equivalent. Loosen the nuts (key 9) on the two fasteners in an equivalent manner to

relieve spring force.

3. Carefully remove all cap screws and hex nuts (keys 8 and 9) from the top casing assembly. The spring forces are

retained by the diaphragm rod assembly (key 10), allowing quick removal of the pressure retaining components.

4. Remove the top casing assembly and the diaphragm (key 11).

5. Inspect the diaphragm plate (key 6). If the diaphragm plate is damaged or if further disassembly of the actuator is

required, proceed to the Replacing Diaphragm Plate, Diaphragm Rod Assembly, and Spring(s) procedure.

6. Inspect the diaphragm and replace if necessary.

Assembly

1. Place the diaphragm (key 11) on the diaphragm plate (key 6), making certain that it is properly centered.

2. Observe the correct position of the loading connection fitting and install the top casing assembly (key 5). Replace

the cap screws and nuts (keys 8 and 9) which secure the top casing assembly to the actuator housing. Tighten the

nuts in an alternating fashion (see table 6).

3. Install the inlet piping to the top casing assembly.

Replacing Diaphragm Plate, Diaphragm Rod Assembly, and Spring(s)

Isolate the valve body from the process. Release process pressure and vent all actuator pressure.

Disassembly

1. Remove the supply tubing or pipe from the top casing assembly (key 5).

WARNING

To avoid personal injury from precompressed spring force suddenly thrusting parts away from the actuator, spring

compression must first be relieved. Closely follow the instructions below.

2. Loosen, but do not remove, all casing cap screws and hex nuts (keys 8 and 9). Ensure there is no spring force to the

top casing assembly (key 5). If spring force is detected against the top casing assembly, ensure the up travel stop

cap screw (key 23) is adjusted correctly to prevent over-rotation of the lever (key 14). Refer to figure 3. The travel

indicator screws (key 22) in the end of the lever should be in alignment with the travel scale screws (key 20). If the

up travel stop is confirmed to be adjusted correctly and force is still detected against the top casing assembly,

contact your local Emerson Process Management Instrument and Valves Service Center. Alternatively, replace two

oppositely located casing cap screws (key 8) with 100 mm (4 inch) long fully threaded M10 cap screws of ISO 898-1

Property Class 8.8 material or equivalent. Loosen the nuts (key 9) on the two fasteners in an equivalent manner to

relieve spring force.

3. Carefully remove all cap screws and hex nuts (keys 8 and 9) from the top casing assembly. The spring forces are

retained by the diaphragm rod assembly (key 10), allowing quick removal of the pressure retaining components.

4. Remove the top casing assembly and the diaphragm (key 11).

5. Inspect the diaphragm plate (key 6).

a. To relieve spring compression, using a hex wrench, unscrew and remove the socket head cap screw (key 7) which

secures the diaphragm plate (key 6) to the diaphragm rod assembly (key 10). Remove the diaphragm plate.

6. Remove the spring (key 13) or springs (keys 12 and 13).

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7. The guide assembly (key 48) may be removed for inspection (size 3 only).

Note

At this stage of disassembly, it may be determined that further disassembly is not necessary. If separation of the diaphragm rod

assembly from the lever is not warranted, proceed to the Assembly portion within this section of the procedure.

8. To gain access to the cap screw (key 16) which secures the diaphragm rod assembly to the lever, the end plate

assembly (key 3) must be removed. Before the end plateassemblycanberemoved,oneofthefollowing

procedures must be performed. Proceed as appropriate:

DFor actuators with valve bodies mounted on the end plate assembly (key 3) side of the actuator, the actuator must

be separated from the valve body. Perform steps 1 through 4 of the Actuator Mounting section, remove the

mounting yoke (key 27), and then return to step 9 of this section.

DFor actuators with valve bodies mounted on the actuator housing boss side of the actuator [opposite of the

endplate (key 3)], remove the travel indicator pointer (key 21). Proceed to step 9.

9. Remove the socket head cap screws (key 4) and the end plate assembly (key 3).

10. Remove the cap screw (key 16) and nut (key 17) if applicable (size 3 only), that secures the actuator lever (key 14)

to the diaphragm rod assembly (key 10). Remove the diaphragm rod assembly.

11. Inspect all parts and replace if necessary.

12. If total disassembly of the actuator is required, or if the actuator will be assembled for use with a valve body with a

different valve shaft diameter, proceed to the Changing or Replacing Actuator Lever procedure.

Assembly

1. Fasten the diaphragm rod assembly (key 10) to the lever using the cap screw (key 16) and nut (key 17) if applicable.

Tighten per table 6.

2. Install the housing end plate (key 3).

3. Adjust the travel stop bolts to the correct position so that the travel indicator screws (key 22) align with the travel

scale screws (key 20). See figure 3.

4. Install the guide assembly (key 48 - size 3 only).

5. Install the spring(s). The outer (larger diameter) spring is standard for the single spring size 1 & 2 constructions. The

inner spring is standard for the single spring size 3 construction.

6. Place the diaphragm plate (key 6) onto the spring(s). It is important that the springs be properly seated in their

respective counterbores on the bottom side of the plate. If necessary, push or pull the diaphragm plate toward

center to ensure the springs are engaged into their respective seats.

7. Lubricate the socket head capscrew (key 7) and tighten per table 6.

8. Place the diaphragm (key 11) on the diaphragm plate (key 6), making certain that it is properly centered.

9. Observe the correct position of the loading connection fitting and install the top casing assembly (key 5). Replace

the cap screws and nuts (keys 8 and 9) which secure the top casing assembly to the actuator housing. Tighten the

nuts in an alternating fashion (see table 6).

10. Install the inlet piping to the top casing assembly.

11. Install the travel indicator (key 19) if removed.

12. If the actuator was removed from the valve body, refer to the appropriate section in the Actuator Mounting

procedure and proceed as applicable.

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Changing or Replacing Actuator Lever

WARNING

Avoid personal injury or property damage. The end plate assembly (key 3) and lever (key 14) may only be removed after the

actuator spring compression forces are safely relieved. Refer to the instructions below.

Disassembly

WARNING

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

any maintenance operations:

DDo not remove the actuator from the valve while the valve is still pressurized.

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

DDisconnect 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.

DUse 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.

DSafely vent the power actuator loading pressure.

DUselock-outprocedurestobesurethattheabovemeasures stay in effect while you work on the equipment.

DCheck with your process or safety engineer for any other hazards that may be present from exposure to process media.

1. Isolate the valve body from the process. Release process pressure and vent all actuator pressure.

2. Remove the cover or plug (key 2).

WARNING

To avoid personal injury and equipment damage from moving parts, keep fingers and tools clear while stroking the

actuator with the cover removed.

3. Loosen the cap screw (key 15).

4. Follow steps 2 through 10 in the Replacing Diaphragm Plate, Diaphragm Rod Assembly, and Spring(s) section.

5. Remove and inspect the lever (key 14). If the lever is worn or damaged, or if the actuator will be mounted to a valve

body requiring a different size lever, replace the lever.

6. Inspect the bushings located in the end plate (key 3) and housing (key 1) assemblies. If bushings are excessively

worn or damaged, remove them with a press. Press in new bushings so that they are flush with the exterior surfaces

of the actuator housing and the end plate assembly.

Assembly

1. Refer to figure 4 for the correct orientation of the lever during assembly.

2. If a cam-operated positioner is used, install the cam to the lever with the parts provided by the appropriate

instrument mounting kit. Be sure to observe the orientation shown in figure 4 and follow all procedures given in the

positioner instruction manual.

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3. Insert the lever into the bushing in the actuator housing.

4. Fasten the rod end bearing diaphragm rod assembly to the lever using the cap screw (key 16) and nut (key 17) if

applicable. Tighten per table 6.

5. Install the end plate assembly (key 3).

6. Adjust the travel stop bolts to the correct position so that the travel indicator screws (key 22) align with the travel

scale screws (key 20). See figure 3.

7. Install the guide assembly (key 48) size 3 only.

8. Install the spring(s). The outer (larger diameter) spring is standard for the single spring size 1 & 2 constructions. The

inner spring is standard for the single spring size 3 construction.

9. Place the diaphragm plate (key 6) onto the spring(s). It is important that the springs be properly seated in their

respective counterbores on the bottom side of the plate. If necessary, push or pull the diaphragm plate toward

center to ensure the springs are engaged into their respective seats.

10. Lubricate the socket head capscrew (key 7) and tighten per table 6.

11. Place the diaphragm (key 11) on the diaphragm plate (key 6), making certain it is properly centered.

12. Observe the correct position of the loading connection fitting and install the top casing assembly (key 5). Replace

the cap screws and nuts (keys 8 and 9) which secure the top casing assembly to the actuator housing. Tighten the

nuts in an alternating fashion (see table 6).

13. Install the inlet piping to the top casing assembly.

14. Refer to the Actuator Mounting procedure and proceed as applicable:

Positioner Mounting (3610, DVC6020, or DVC6200)

1. Before installing the positioner, the positioner cam must be installed on the lever.

2. Refer to assembly step 2 in the previous section on Changing or Replacing Actuator Lever.

3. Refer to the positioner instruction manual for setup and calibration procedures.

Top-Mounted Handwheel (Size 1 and 2)

Key numbers used in this procedure are shown in figure 9 except where indicated.

The optional top-mounted handwheel can be used as a manual actuator for intermittent service. It is not to be used as

an adjustable travel stop. This is built into the housing.

The handwheel assembly is welded to a special top casing assembly (key 5, figure 9). A hex nut (key 43) locks the

handwheel in position. For field installation of a handwheel, the special upper diaphragm casing is supplied with the

handwheel.

Turning the handwheel (key 32) clockwise into the upper casing forces the pusher plate (key 36) against the

diaphragm and diaphragm plate (keys 11 and 6, figure 7) to compress the inner and outer springs (keys 12 and 13,

figure 7) and move the diaphragm rod assembly downward. Turning the handwheel counter-clockwise allows the

actuator spring(s) to move the diaphragm rod assembly upward.

Instructions are given below for complete disassembly and assembly required for inspection and parts replacement.

Disassembly

WARNING

To avoid personal injury from the precompressed spring force thrusting the upper diaphragm casing away from the

actuator, fully turn the handwheel counterclockwise.

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1. Perform steps 1 through 6 of the Replacing Diaphragm procedure.

2. Remove the cotter pin, hex nut, handwheel, and locknut (keys 34, 33, 32, and 43). Unscrew the stem (key 35) out

through the actuator end of the handwheel body (key 5).

3. Check the condition of the O-ring (key 44); replace if necessary.

4. If it is necessary to remove the pusher plate or spacer (key 36 or 42), drive out the groove pin (key 37).

Assembly

1. Before assembling, lubricate the thread of the stem (key 35) with anti-seize lubricant. Lubricate the bearing

surfaces of the stem and rounded end with lithium grease.

2. If the pusher plate or spacer was removed, attach them to the stem and drive in a new groove pin (key 37).

3. With the O-ring (key 44) in place, thread the stem into the handwheel assembly.

4. Install the locknut, handwheel, hex nut, and cotter pin (keys 43, 32, 33, and 34).

Note

Be sure to install the handwheel so that the arrow of operation on the top side coincides with the action of the actuator, as stated

on the nameplate. (The arrow should point clockwise for PDTO. The arrow should point counter-clockwise for PDTC.)

5. Install the top casing assembly, making certain the warning tag is in place on the casing flange.

Locking Mechanism

Refer to figures 5 or 6 for the appropriate size locking mechanism when installing or planning to operate the device.

WARNING

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

any maintenance operations:

DDo not remove the actuator from the valve while the valve is still pressurized.

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

DDisconnect 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.

DUse 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.

DSafely vent the power actuator loading pressure.

DCheck with your process or safety engineer for any hazards that may be present from exposure to process media.

Installing the Size 1 Locking Mechanism

To add the locking mechanism (figure 5) to an existing actuator, purchase the required kit from Emerson Process

Management.

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1. Ensure the diaphragm rod assembly (key 10) is in the upward position and the lever (key 14) is against the up travel

stop (spring fail position).

2. Thread the supplied jam nut (key 40) all the way onto the threaded bolt portion of the mounting plate assembly.

3. Loosen the down travel stop hex nut (key 24) and remove the travel stop cap screw (key 23).

4. Remove the vent screen (key 47) from the threaded hole in the bottom of the actuator housing.

5. Secure the locking plate (key 39) to the bottom of the housing assembly by reinstalling the down travel stop (key

23) and hex nut (key 24). Ensure the clearance hole in the locking plate is aligned with the threaded hole in the

bottom of the housing.

6. Ensure the down travel stop is adjusted correctly to achieve the desired actuator rotational output.

7. Install the mounting plate assembly (key 38) by inserting it through the clearance hole in the locking plate and

threading it into the hole in the actuator housing.

GE51941_A

Figure 5. Size 1 Locking Mechanism

LOCKING PLATE

(KEY 39)

MOUNTING PLATE ASSEMBLY

(KEY 38)

JAM NUT

(KEY 40)

CUSTOMER-SUPPLIED

LOCKING DEVICE

Operating the Locking Mechanism (Size 1)

To Lock the Actuator

1. Screw the mounting plate assembly into the housing until it contacts the actuator lever.

2. Align the hole in the locking plate (key 39) with one of the holes in the disk of the mounting plate assembly.

3. Tighten the jam nut (key 40) against the locking plate.

4. Insert a padlock (not furnished by Emerson Process Management) to prevent the mounting plate assembly from

rotating.

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To Unlock the Actuator

1. Remove the padlock. Loosen the jam nut (key 40), and unscrew the threaded bolt until it no longer protrudes inside

the housing.

Note

Ensure the mounting plate assembly bolt is unthreaded far enough that the actuator lever will not contact the bolt during normal

actuator operation.

2. If the mounting plate assembly is to be left partially threaded into the housing, lock it with the jam nut (key 40) so

that it cannot be screwed further into the housing and interfere with normal actuator operation.

Figure6.Size2and3LockingMechanism

PART ORIENTATION FOR SIZE 3 END-MOUNT INSTRUMENT

CUSTOMER SUPPLIED

LOCKING DEVICE SIZE 3

Installing the Size 2 and 3 Locking Mechanism

To add the locking mechanism (figure 6) to an existing actuator, purchase the required kit from Emerson Process

Management.

1. The actuator should be mounted to the valve body and both travel stops (key 23) properly positioned prior to

installing the locking mechanism.

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2. Ensure the actuator lever (key 14) is in the spring-fail position (against the up travel stop).

3. Assemble the lockout kit by positioning the locking shaft (key 50) within the center through-hole of the mounting

plate (key 51), as shown in figure 6. Insert the locking pin (key 52) through the center pinhole of the mounting plate

and through the pin hole in the locking shaft. Install the hairpin cotter pin (key 54) for retention.

4. If installing the lockout kit on an existing actuator, remove the travel indicator (key 21) and travel indicator scale

(key 19) from the actuator by loosening the appropriate screws.

5. Position the lockout kit against the actuator outboard end. The locking shaft will insert and engage the lever end

geometry.

Size 2 actuator: The standard size 2 lockout kit orientation shown in figure 6 will accommodate the use of

window-mount and end-mount digital valve controllers, positioners, and accessories. This orientation requires

removal of the locking pin in the direction of the bottom side of the actuator.

Size 3 actuator: For the window mounted DVC6200 digital valve controller, the size 3 lockout kit should be oriented

such that locking pin removal is in the direction of the bottom side of the actuator. This mounting plate position

provides necessary clearance with the integral supply pressure regulator. For the end-mount digital valve controller or

accessory option, the size 3 lockout kit should be oriented as shown in the inset picture of figure 6.

6. Loosely install the four flanged cap screws (key 53). Prior to tightening the fasteners, ensure the through-hole in the

mounting plate is centered around the outside diameter of the locking shaft (key 50). Rotate the assembly by hand

in the appropriate direction opposite of anticipated lever rotation to eliminate initial clearance among parts.

7. Tighten the cap screws (key 53) per the recommended torque values in table 6.

8. Install the travel indicator (key 21) and travel indicator scale (key 19) to the lockout parts as illustrated in figure 6.

WARNING

To avoid personal injury or property damage, ensure the travel indicator is installed correctly to coincide with the desired

actuator action. Refer to figure 3 for more information.

9. For normal actuator operation, remove the hairpin cotter pin (key 54) and locking pin (key 52) from the center

pinhole of the mounting plate and reinstall these parts in the second pinhole for storage.

Operating the Locking Mechanism (Size 2 & 3)

To Lock the Actuator

1. With the actuator lever (key 14) against the up travel stop (spring-fail position), insert the locking pin (key 52)

through the center pinhole of the mounting plate and through the pin hole in the locking shaft. Install the hairpin

cotter pin (key 54) for retention.

2. Install the customer-supplied locking device to further prevent removal of the locking pin.

To Unlock the Actuator

1. Remove the customer-supplied locking device.

2. Remove the hairpin cotter pin (key 54) and locking pin (key 52) from the center pinhole of the mounting plate and

reinstall these parts in the second pinhole for storage.

WARNING

To avoid personal injury or property damage, be aware the travel indicator scale (key 19) retains the locking shaft (key 50)

during normal actuator operation. Removal of the travel indicator scale could allow the locking shaft to fall out in certain

actuator orientations.

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Parts Ordering

When corresponding with your Emerson Process Management sales office about this equipment, refer to the serial

number found on the actuator nameplate.

WARNING

Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management 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.

Parts List

Note

Part numbers are shown for recommended spares only. For part

numbers not shown, contact your Emerson Process Management sales

office.

Key Description Part Number

1 Housing Assembly

1a* Bushing

Size 1 GE27672X012

Size 2 GE32316X012

Size 3 GE34956X012

2 Cover or Plug

3 End Plate Assembly

3a* Bushing

Size 1 GE27672X012

Size 2 GE32316X012

Size 3 GE34956X012

4CapScrew

5 Top Casing Assembly

6 Diaphragm Plate

7CapScrew

8CapScrew

9HexNut

10 Diaphragm Rod Assembly

11* Diaphragm

Size 1 GE28042X012

Size 2 GE31917X012

Size 3 GE34829X012

12 Spring, Inner

13 Spring, Outer

Key Description Part Number

14 Lever

15 Cap Screw

16 Cap Screw

17 Hex Nut

18 Insert

19 Travel Indicator Scale

20 Self Tapping Screw

21 Travel Indicator

22 Machine Screw

23 Cap Screw

24 Hex Nut

25 Cover Plate

26 Cap Screw

27 Mounting Yoke

28 Cap Screw

29 Label

30 Nameplate

31 Drive Screw

32 Handwheel

33 Slotted Hex Nut

34 Cotter Pin

35 Screw

36 Pusher Assembly

37 Groove Pin

41 Warning Label

42 Washer

43 Hex Nut

44* O-Ring

Size 1 1D237506992

Size 2 1D237506992

45 Lubricant

46 Lubricant

47 Vent Screen

48* Guide Assembly

49 Lockout Kit

Size 1 GE51941X012

Size 2 GE52968X012

Size 3 GE52968X022

*Recommended spare parts

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Figure 7. Fisher 2052 Actuator Assembly

GE42779-C

APPLY LUB/SEALANT

PARTS NOT SHOWN: 2, 18

SIZE 3 ONLY

SIZE 3 ONLY

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Figure 8. Fisher 2052 Size 3 Actuator Assembly

GE52013-A

APPLY LUB/SEALANT

SIZE 3 ONLY

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Figure 9. Fisher 2052 Size 1 Handwheel Assembly

GE33241_A

APPLY LUBRICANT

Emerson Process Management

Marshalltown, Iowa 50158 USA

Sorocaba, 18087 Brazil

Chatham, Kent ME4 4QZ UK

Dubai, United Arab Emirates

Singapore 128461 Singapore

www.Fisher.com

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot

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.

EFisher Controls International LLC 2009, 2011; All Rights Reserved

Fisher, Control-Disk, and GO are marks owned by one of the companies in the Emerson Process Management business division of Emerson Electric Co.

Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property

of their respective owners.

Neither Emerson, Emerson Process Management, 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.