Instruction Manual
D101329X012
1078 Actuator
June 2017
4
Table 2. Fisher 2052 Actuator Size Selection and Specifications for Sizes AAA, A, and C
MANUAL
ACTUATOR
SIZE
SHAFT SIZE
POWER
ACTUATOR
STANDARD
HANDWHEEL
DIAMETER
MAXIMUM
TORQUE
WHEEL‐RIM‐FORCE
HANDWHEEL
TURNS FOR
ROTATION
For Maximum
Torque
For Less Than Maximum
Torque
Degrees
mm
Inch
Type
Size
mm
Inch
N
S
m
Lbf
S
in
N
Pounds
N
Pounds
60
90
AAA
(2400 in•lbs)
12.7
1/2
2052
1
203
8
131
1156
144
32
Divide N
S
m
req'd by
0.91
Divide lbf
S
in
req'd by 36
4
6
14.2x15.9
15.9
9/16x5/8
5/8
211
1866
232
52
19.1
3/4
271
2400
298
67
A
(8000 in•lbs)
14.3x15.9
15.9
9/16x5/8
5/8
2052
2
406
16
489
4326
204
45
Divide N
S
m
req'd by 2.4
Divide lbf
S
in
req'd by 96
5.3
8
19.1
3/4
590
5221
246
54
22.2
25.4
7/8
1
818
7241
341
75
28.6x31.8
31.8
1-1/8x1-1/4
1-1/4
904
8000
377
83
C
(18000
in•lbs)
19.1
3/4
2052
3
610
24
1338
11842
279
61
Divide N
S
m
req'd by 4.8
Divide lbf
S
in
req'd by 194
9
13.5
22.2
25.4
7/8
1
1566
13862
326
71
28.6x31.8
31.8
38.1
39.7x44.5
44.5
50.8
1-1/8x1-1/4
1-1/4
1-1/2
1-9/16x1-3/4
1-3/4
2
2034
18000
424
93
Table 3. Fisher 1052 Actuator Size Selection and Specifications for Sizes 2A, 1A, B, and C
MANUAL
ACTUATOR
SIZE
(max output
torque)
SHAFT SIZE
POWER
ACTUATOR
(1)
GEAR
RATIO
HANDWHEEL
DIAMETER
MAXIMUM
TORQUE
(2)
WHEEL‐RIM‐FORCE
HANDWHEEL
TURNS FOR
ROTATION
For Maximum
Torque
For Less Than
Maximum Torque
Degrees
mm
Inch
Type
Size
mm
Inch
N
S
m
Lbf
S
in
N
Pounds
N
Pounds
60
90
1A
(8200 in•lbs)
31.8,
28.6x
31.8
1‐1/4,
1‐1/8x
1‐1/4
1052
70
32:1
610
24
929
8200
378
85
Divide N
S
m
req'd by 2.4
Divide
lbf
S
in req'd
by 96
5.3
8
38.1
31.8x
38.1
1‐1/2,
1‐1/4x
1‐1/2
(44.4,
50.8),
39.7
x44.5
(1‐3/4,
2),
1‐9/16
x1‐3/4
B
(12,000
in•lbs)
31.8
1‐1/4
1052
70
40:1
610
24
1356
12,000
369
83
Divide N
S
m
req'd by 3.6
Divide
lbf
S
in req'd
by 144
6.7
10
38.1,
(44.4,
50.8)
1‐1/2,
(1‐3/4,
2)
C
(18,000
in•lbs)
31.8
1‐1/4
1052
70
54:1
610
24
2034
18,000
414
93
Divide N
S
m
req'd by 4.8
Divide
lbf
S
in req'd
by 194
9
13.5
(44.4,
50.8)
(1‐3/4,
2)
1. Field conversion of actuators for F and G mounting adaptations requires installation of new parts.
2. Compare table value with torque requirements of the valve plus the torque required to compress the power actuator spring (from Fisher Catalog 14). Note that dynamic torque of the valve
may have a positive or negative effect on total torque required.
