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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: 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.
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
(1)
ACTUATOR
SIZE
NSm
1
38
2
180
3
400
1
68
2
120
3
210
1
27
2
115
3
300
1
55
2
55
3
55
1
27
2
68
3
245
1
38
2
115
3
175
1
NA
2
88
3
340
TORQUE
LbfSft
28
130
295
50
90
155
20
85
220
40
40
40
20
50
180
28
85
130
NA
65
250
Instruction Manual
D103296X012
FASTENER LUBRICATION
None
None
Anti-Seize Lubricant
None
None
None
None
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