Emerson Fisher 2052 User manual

www.Fisher.com

Fisher™2052 Diaphragm Rotary Actuator

Contents

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

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

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

Educational Services 4...........................

Specifications 4...............................

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, DVC6020, or DVC6200) 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

W9418-2

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 sales office or Local Business Partner 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.

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.

Instruction Manual

D103296X012

2052 Actuator

June 2017

Instruction Manual

D103296X012

2052 Actuator

June 2017

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 Size 1, 2, and 3 Actuators: 5 barg (73 psig)

Pressure Connection See table 5

Torque Output See table 3

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

Optional: -45 to 100_C (-50 to 212_F)(3) or -60 to 80_C (-76 to 176_F)(4)

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

Adjustable Travel Stops Standard adjustable up and down stops capable of 30 degrees of adjustment per stop.

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

Handwheel Top‐mounted handwheel: Optional on Size 1, 2, and 3 actuators

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

Operational Lockout(2) 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. The current SIL certification for the 2052 actuator is only relevant for the standard temperature ratings shown.

2. Lockout and declutchable handwheel cannot be used together on size 2 and size 3 actuators.

3. Temperature range only applies when using silicone diaphragm material. Silicone diaphragm is not available with the top-mounted handwheel option.

4. Temperature range requires use of stainless steel bolting for yoke and travel stops. Not available with top-mounted handwheel.

Table 2. Actuator and Shaft Size Availability

SHAFT SIZE ACTUATOR SIZE

mm Inches 1 2 3

12.7 1/2 X

14.3 x 15.9 9/16 x 5/8 X X

15.9 5/8 X X

19.1 3/4 X X X

22.2 7/8 X X

25.4 1 X X

28.6 x 31.8 1-1/8 x 1-1/4 X X

31.8 1-1/4 X X

31.8 x 38.1 1-1/4 x 1-1/2 X

38.1 1-1/2 X

39.7 x 44.5 1-9/16 x 1-3/4 X

44.5 1-3/4 X

50.8 2 X

Table 3. Torque versus Actuator Size

ACTUATOR

SIZE AND

ACTION

OPERATING PRESSURE

2 barg (29 psig)(1) 3 barg (44 psig)(1) 4 barg (58 psig)(1) 4.7 barg (68 psig)(1)

Torque

NSm lbfSin NSm lbfSin NSm lbfSin NSm lbfSin

1 (PDTO)

1 (PDTC)

25.5

226

25.5

36.2

226

320

51.2

453

51.2

72.4

453

641

2 (PDTO)

2 (PDTC)

105

930

105

175

930

1550

210

1860

210

320

1860

2840

3 (PDTO) 327 2890 327 2890 631 5580 631 5580

3 (PDTC) 280 2480 557 4930 584 5170 930 8230

1. Do not interpolate between operating pressures. Consult your Emerson sales office or Local Business Partner for assistance.

Instruction Manual

D103296X012

2052 Actuator

June 2017

Table 4. Fisher 2052 Actuator Mounting Styles

MOUNTING ACTION(1)

VALVE SERIES OR DESIGN VALVE SERIES OR DESIGN

BALL/PLUG

ROTATION TO

V150, V200 & V300 CV500

V500

DISK/BALL

ROTATION TO

A11, 8510B, 8532,

8560, 8580,

9500, and

Control‐Disk

Valve

Right‐Hand PDTC

PDTO

CCW

Left‐Hand PDTC

PDTO

CCW

Left‐Hand

(Optional)(2)

PDTC

PDTO

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

POSITION 1

STANDARD

POSITION 1

STANDARD

GE37285-B

FLOW

STYLE D SHOWN

LEFT HAND MOUNTING

VALVE

INLET

STYLE B SHOWN

VALVE

INLET

RIGHT HAND MOUNTING

Table 5. Pressure Connections

ACTUATOR

SIZE

PRESSURE CONNECTION

1/4 NPT 1/2 NPT 3/4 NPT G 1/4

1 standard optional not available optional

2 standard optional not available optional

3not available standard optional not available

Instruction Manual

D103296X012

2052 Actuator

June 2017

Educational Services

For information on available courses for Fisher 2052 actuators, as well as a variety of other products, contact:

Emerson Automation Solutions

Educational Services - Registration

Phone: 1-641-754-3771 or 1-800-338-8158

E-mail: [email protected]

emerson.com/fishervalvetraining

Specifications

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

nameplate attached to the actuator.

Table 6. Bolting Torque Requirements(1)

DESCRIPTION KEY NUMBER ACTUATOR

SIZE

TORQUE FASTENER LUBRICATION

NSm LbfSft

Rod End Bearing Clamping Bolt

Torque , Key 16

180

400

130

295

None

End Plate to Housing Bolt

Torque, Key 4

120

210

155

None

Diaphragm Plate to Rod Bolt

Torque, Key 7

115

300

220

Anti-Seize Lubricant

Casing Bolt Torque, Key 8

None

Housing to Yoke Bolt Torque,

Key 28

245

180

None

Lever‐Spline Clamping Bolt

Torque, Key 15

115

175

130

None

Optional Lockout Kit Mounting

Bolt Torque, Key 53

340

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.

Instruction Manual

D103296X012

2052 Actuator

June 2017

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 5) 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

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:

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

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

D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the

actuator cannot suddenly open or close the valve.

D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

from both sides of the valve. Drain the process media from both sides of the valve.

D Safely vent the power actuator loading pressure.

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

D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the

pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings.

D Check 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.

Instruction Manual

D103296X012

2052 Actuator

June 2017

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.

5. Refer to figure 2 and table 4 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

TRAVEL

STOP

DOWN

TRAVEL

STOP

KEY 22

KEY 20 TRAVEL

INDICATOR

ORIENTATION

FOR PDTC

INDICATOR

ORIENTATION

FOR PDTO

VIEW A

Instruction Manual

D103296X012

2052 Actuator

June 2017

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

the travel indicator scale mounting holes. Slide the valve shaft into the lever. (See figure 4 for one possible

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

valve body instruction manual.

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.

Over-rotation of the lever could result in the diaphragm stroking to the point where the diaphragm seals off against the air

signal connection. This could prevent an air signal from being able to stroke the valve.

11. Adjust the up travel stop (see figure 3) so that the valve ball 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:

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

Instruction Manual

D103296X012

2052 Actuator

June 2017

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

D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the

actuator cannot suddenly open or close the valve.

D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

from both sides of the valve. Drain the process media from both sides of the valve.

D Safely vent the power actuator loading pressure.

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

D Check 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,

contact your local Emerson Automation Solutions 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

Instruction Manual

D103296X012

2052 Actuator

June 2017

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 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).

Instruction Manual

D103296X012

2052 Actuator

June 2017

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 plate assembly can be removed, one of the following

procedures must be performed. Proceed as appropriate:

D For 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.

D For 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.

Table of contents

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