Instruction Manual
D103296X012
2052 Actuator
June 2017
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...................................
Introduction
Figure 1. Fisher Control‐Disk™ Valve with
2052 Actuator and DVC6200 Digital Valve Controller
W9418-2
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
proceeding.
or Local Business Partner before
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.
www.Fisher.com
2052 Actuator
June 2017
Instruction Manual
D103296X012
Table 1. Fisher 2052 Actuator Specifications
Specifications
Actuator Mounting Connections
Actuator Sizes See table 2
Operating Pressure
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
Operation Field reversible between PDTC and PDTO; right‐ and left‐hand mounting, any angle of orientation
Approximate Weight
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
Handwheel
Operational Lockout
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.
(1)
(1)
(2)
Splined shaft connection, ISO 5211 actuator‐to‐bracket connection
Size 1: F07, Size 2: F10, Size 3: F14
See table 3
Standard: -45 to 80_C (-50 to 176_F)
Optional: -45 to 100_C (-50 to 212_F)
Size 1: 22.2 kg (49 lb)
Size 2: 54.4 kg (120 lb)
Size 3: 113 kg (250 lb)
846, 646, 2625, and 67C Series, switches, i2P-100, VBL, DXP, GO Switch™
Top‐mounted handwheel: Optional on Size 1, 2, and 3 actuators
Declutchable handwheel: Optional on Size 1, 2, and 3 actuators
Available for customer‐supplied padlock to lock the actuator in the spring‐fail position
(3)
or -60 to 80_C (-76 to 176_F)
(4)
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
1 (PDTO)
1 (PDTC)
2 (PDTO)
2 (PDTC)
2 barg (29 psig)
NSm lbfSin NSm lbfSin NSm lbfSin NSm lbfSin
25.5
25.5
105
105
(1)
226
226
930
930
3 barg (44 psig)
25.5
36.2
105
175
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.
OPERATING PRESSURE
(1)
4 barg (58 psig)
Torque
226
320
930
1550
51.2
51.2
210
210
(1)
453
453
1860
1860
4.7 barg (68 psig)
51.2
72.4
210
320
(1)
453
641
1860
2840
2
Instruction Manual
D103296X012
Table 4. Fisher 2052 Actuator Mounting Styles
VALVE SERIES OR DESIGN VALVE SERIES OR DESIGN
MOUNTING ACTION
Right‐Hand
Left‐Hand
Left‐Hand
(Optional)
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.
(2)
(1)
PDTC
PDTO
PDTC
PDTO
PDTC
PDTO
Figure 2. Fisher 2052 Actuator Mounting Styles
BALL/PLUG
ROTATION TO
CLOSE
CCW
CCW
CCW
CCW
CW
CW
V150, V200 & V300
A
B
D
C
C
D
CV500
V500
A
B
D
C
NA
NA
DISK/BALL
ROTATION TO
CLOSE
CW
CW
CW
CW
NA
NA
2052 Actuator
June 2017
A11, 8510B, 8532,
8560, 8580,
9500, and
Control‐Disk
Valve
B
A
C
D
NA
NA
LEFT HAND MOUNTING
STYLE D SHOWN
STYLE D
4
2
3
POSITION 1
STANDARD
4
STYLE C
3
RIGHT HAND MOUNTING
VALVE
INLET
2
FLOW
VALVE
INLET
FLOW
STYLE A
4
STYLE B SHOWN
STYLE B
POSITION 1
STANDARD
2
3
4
2
3
GE37285-B
Table 5. Pressure Connections
ACTUATOR
SIZE
1 standard optional not available optional
2 standard optional not available optional
3 not available standard optional not available
1/4 NPT 1/2 NPT 3/4 NPT G 1/4
PRESSURE CONNECTION
3
2052 Actuator
June 2017
Instruction Manual
D103296X012
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: education@emerson.com
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
DESCRIPTION KEY NUMBER
Rod End Bearing Clamping Bolt
Torque , Key 16
End Plate to Housing Bolt
Torque, Key 4
Diaphragm Plate to Rod Bolt
Torque, Key 7
Casing Bolt Torque, Key 8
Housing to Yoke Bolt Torque,
Key 28
Lever‐Spline Clamping Bolt
Torque, Key 15
Optional Lockout Kit Mounting
Bolt Torque, Key 53
1. Exceeding any torque requirements could damage the actuator and impair safe operation.
ACTUATOR
SIZE
(1)
TORQUE
NSm LbfSft
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
38
180
400
68
120
210
27
115
300
55
55
55
27
68
245
38
115
175
NA
88
340
28
130
295
50
90
155
20
85
220
40
40
40
20
50
180
28
85
130
NA
65
250
FASTENER LUBRICATION
None
None
Anti-Seize Lubricant
None
None
None
None
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.
4
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.
5
2052 Actuator
June 2017
Instruction Manual
D103296X012
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
INDICATOR
ORIENTATION
FOR PDTO
TRAVEL INDICATOR
VIEW A
DOWN
TRAVEL
STOP
UP
TRAVEL
STOP
SCALE
KEY 22
KEY 20
INDICATOR
ORIENTATION
FOR PDTC
TRAVEL
INDICATOR
VIEW A
6
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