Emerson Fisher 1078 Data Sheet

Product Bulletin

61.8:1078
D101339X012
January 2009

1078 Manual Actuator

Fisherr 1078 Declutchable Manual Actuator

Fisherr 1078 manual actuators, figures 1 and 2, are
declutchable actuators for manual operation of
control valves and equipment that use power
actuators. The 1078 manual actuator mounts directly
to Fisher 1051 sizes 33, 40, and 60; 1052 sizes 33,
40, 60, and 70; 1061 sizes 30, 40, 60, 68, 80, and
100; and to all sizes of 1066 and 1066SR actuators.

For 1051 size 33, 1052 size 33, 1066, and 1066SR
actuators, coupling to the power actuator is via a
flatted shaft installed in the lever or hub. The
dimensions of these shafts are the same as those
used with H mounting adaptations. The stub shaft
fits into a square broach in the manual actuator
sector, and spacers secure the shaft in the
appropriate position.

W6244−1/IL

Figure 1. Fisherr 1078 Declutchable Manual Actuator

Mounted on a 1052 Size 33 Actuator

(Standard Construction)

www.Fisher.com

W6283/IL

Figure 2. Fisherr 1078 Declutchable Manual Actuator

Mounted on a 1052 Size 40 Actuator and V500 Valve

(Optional Construction)

D101339X012

1078 Manual Actuator

Specifications

Product Bulletin

61.8:1078

January 2009

Available Configurations

Direct and reverse acting; see Handwheel
Rotation and the Ordering Information section,
(Standard construction is with the handwheel
shaft pointing down away from the power actuator
as shown in figure 1)

Manual Actuator Sizes

See tables 1, 2, 3 and 4
See figures 4 and 5 for dimensions

Coupling Shaft Diameters

See tables 1, 2, 3 and 4

Power Actuator Compatibility

See tables 1, 2, 3 and 4

Maximum Torque Output

See tables 1, 2, 3 and 4

Wheel-Rim Force

See tables 1, 2, 3 and 4

Handwheel Rotation

Clockwise handwheel rotation closes the valve.
Direct-acting units produce output rotation
matching input rotation; reverse-acting units
produce output rotation opposite input rotation.

Standard Mounting Positions

J1051 (size 33) or 1052 (size 33): Handwheel

down (see figure 1)

J1051 (size 40 and 60) (see figure 2) or 1052

(size 40, 60, and 70)
handwheel right-hand or left-hand mount
(optional)

J1061 (sizes 30, 40, 60, 68, 80, and 100)

Handwheel down (std) or handwheel right-hand or
left-hand mount (optional)

J1066 or 1066SR: Handwheel to left (see figure

3) or, with a 67AFR, handwheel down

Approximate Weight Without Handwheel

Size AAA: 2.7 kg (6 pounds)
Size AA: 6.8 kg (15 pounds)
Size A: 9.5 kg (21 pounds)
Size 2A: 13.6 kg (30 pounds)
Size 1A: 15.9 kg (35 pounds)
Size B: 23.1 kg (51 pounds)
Size C: 29.9 kg (66 pounds)
Size D: 63.5 kg (140 pounds)
Size

II-FA: 81.6 kg (180 pounds)

Handwheel Weight

(1)

: Handwheel down (std) or

(1)

:

Construction Materials

Housing and Cover: Cast iron
Drive Sleeve/Gear (Sector): Aluminum/bronze
Worm Gear: Heat-treated steel
Input Shaft and Eccentric: Low-carbon steel
Pin Detent: 300 Series stainless steel
Handwheel or Input Shaft Bearings: Bronze

1. If a positioner is used, the right-hand or left-hand mounting option will be limited to the side away from the positioner.

2

6-inch: 1.8 kg (4 pounds)
8-inch: 2.3 kg (5 pounds)
12-inch: 3.2 kg (7 pounds)
16-inch: 6.8 kg (15 pounds)
24-inch: 5.4 kg (12 pounds)
30-inch: 6.4 kg (14 pounds)
36-inch: 7.3 kg (16 pounds)

Product Bulletin

61.8:1078
January 2009

1078 Manual Actuator

41B0314-A / DOC

Figure 3. Fisherr 1078 Declutchable Manual Actuator Mounted on a 1066 Actuator

Features

DDirect Attachment to the Power

ActuatorDirect mounting to the actuator housing

simplifies installation and eliminates the need for yokes
and other brackets.

DEngage Manual Actuator At Any Point of

RotationA lever-operated eccentric bearing

support on the input shaft allows engagement of the
worm gear with the sector at any point of rotation.
Because the travel indicator components are
mounted on a through shaft, accurate travel

indication is maintained during manual actuator
disengagement or engagement.

DPositive OperationThe disengagement

lever is locked in both the engaged and disengaged
positions by a detent mechanism, which must be
released before the lever can be moved. This
provision reduces the possibility of inadvertent or
accidental operation. In addition, stop-pins at the
fully engaged and fully disengaged positions provide
positive limits for lever travel. (Note that stop pins
are not available on 1078 size

II-FA actuators.)

3

Product Bulletin

1078 Manual Actuator

Table 1. Fisherr 1051, 1052, and 1066SR Actuator Size Selection and Specifications for Sizes AAA, AA, and A

MANUAL

ACTUATOR

SIZE

(max output

torque)

AAA

(2400 in.lbs)

AA

(4800 in.lbs)

A

(8200 in.lbs)

1. Requires flatted shaft as in the H mounting adaptation.

2. Field conversion of actuators for F and G mounting adaptations requires installation of new parts. The 1051 or 1052 Size 33 actuator requires installation of appropriate lever and stub
shaft. The 1066 actuator requires installation of appropriate hub assembly.

3. 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.

SHAFT SIZE

mm Inch Type Size mm Inch

12.7

15.9

19.1

(22.2,

25.4)

12.7

15.9

19.1

(22.2,

25.4)

12.7

15.9

19.1

(22.2,

25.4)

12.7

15.9

19.1

(22.2,

25.4)

12.7

22.2,

25.4)

(31.8,

38.1)

(1)

1/2
5/8
3/4

(7/8,

1)

1/2
5/8
3/4

(7/8,

1)

1/2
5/8
3/4

(7/8,

1)

1/2
5/8
3/4

(7/8,

1)

3/4

(7/8,

1)

(1-1/4,

1-1/2)

POWER

ACTUATOR

1051 33

1052 33

1066SR 20

1066SR 27 305 12

1066SR 75 610 24

(2)

STANDARD

HANDWHEEL

DIAMETER

305 12

MAXIMUM

TORQUE

NSm LbfSin

143
223
271
271

190
270
271
271

169
249
271
271

283
363
464
541

717
926

926

(3)

1271
1981
2400
2400

1681
2391
2400
2400

1495
2205
2400
2400

2515
3225
4120
4800

6350
8200

8200

WHEEL-RIM-FORCE

For Maximum

Torque

N Pounds N Pounds 60 90

157
245
298
298

209
297
298
298

186
274
298
298

218
279
357
416

299
385

385

35
55
67
67

47
66
67
67

42
61
67
67

49
63
81
94

66
85

85

For Less Than

Maximum Torque

Divide

NSm req’d

by 0.91

Divide

NSm req’d

by 1.3

Divide

NSm req’d

by 2.4

req’d by

req’d by

req’d by

Divide

lbfSin

36

Divide

lbfSin

51

Divide

lbfSin

96

61.8:1078

January 2009

HAND-

WHEEL

TURNS FOR

ROTATION

Degrees

4 6

5.7 8.5

5.3 8

Table 2. Fisherr 1066 Actuator Size Selection and Specifications for Sizes AAA, AA, and A

STANDARD

MANUAL

ACTUATOR

SIZE

(max output

torque)

AAA

(2400 in.lbs)

AA

(4800 in.lbs)

A

(8200 in.lbs)

1. Requires flatted shaft as in the H mounting adaptation.

2. Field conversion of actuators for F and G mounting adaptations requires installation of new parts. The 1066 actuator requires installation of appropriate hub assembly.

3. Compare table value with torque requirements of the valve (from Fisher Catalog 14). Note that dynamic torque of the valve may have a positive or negative effect on total torque
required.

4

SHAFT SIZE

mm Inch Type Size mm Inch

12.7

15.9

19.1

(22.2,

25.4)

12.7

15.9

19.1

(22.2,

25.4)

12.7

(22.2,

25.4)

(31.8,

38.1)

(1)

1/2
5/8
3/4

(7/8,

1)

1/2
5/8
3/4

(7/8,

1)

3/4

(7/8,

1)

(1-1/4,

1-1/2)

POWER

ACTUATOR

1066 20 305 12

1066 27 305 12

1066 75 610 24

(2)

HAND-

WHEEL

DIAMETER

MAXIMUM

TORQUE

NSm LbfSin

58
138
239
271

58
138
239
467

239
467

926

(3)

515
1225
2120
2400

515
1225
2120
4140

2120
4140

8200

WHEEL-RIM-FORCE

For Maximum

Torque

N Pounds N Pounds 60 90

62

44

98

14
34
59
67

10
24
41
81

22
43

85

151
262
298

106
182
360

191

385

For Less Than

Maximum Torque

Divide

NSm req’d

by 0.91

Divide

NSm req’d

by 1.3

Divide

NSm req’d

by 2.4

req’d by

req’d by

req’d by

Divide

lbfSin

36

Divide

lbfSin

51

Divide

lbfSin

96

HANDWHEEL

TURNS FOR

ROTATION

Degrees

4 6

5.7 8.5

5.3 8