Emerson Fisher 655 And 655R Data Sheet

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Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Fisherr 655 and 655R Actuators
for Self-Operated Control
Fisher 655 and 655R diaphragm actuators, in
combination with Fisher valves, provide control for a
wide variety of pressure regulation applications. The
655 is used for pressure reduction service on
push-down-to-close valves, and the 655R is primarily
for pressure relief use on push-down-to-open valves.
These actuators may be either self-operated or
remote-loaded.

Features


Versatility–Typical industrial service includes
pressure control of water, steam, oil, gas, and other
fluids. Actuators can be operated by pneumatic
switches, solenoid valves, pilot valves, or remote
panel loaders for shutoff service.



Large Valve Body Selection–easy-e valves up
through the NPS 4 (NPS 6 for Fisher EA angle valves)
with wide choice of end connections, flow
directions, flow characteristics, valve plug designs,
and seating constructions can be specified.



Broad Actuator Spring Selection–Spring of the
proper rate is available for nearly any control valve
application. Spring selection procedure is quick and
accurate.



Severe Service Capability–Rugged yoke and casings
help provide stability and corrosion protection.



Fast Acting– Direct-operated configuration
provides faster speed of response.

www.Fisher.com

W2239

Fisher 655R on Reverse-acting easy-et Valve Body

W0451-1

Fisher 655-ED Construction Details

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Specifications
Maximum Actuator Temperature Capability
150_F with standard diaphragm material(1)
Actuator Sizes and Maximum Casing Ratings
Size

Maximum Casing Pressure, Psig

3A, 4A

250

3B, 4B

175

32, 42

100

33, 43

65

34, 44

45

35, 45

30

36, 46

15

Actuator Travel Information
Maximum Rated Travels:
Sizes 3A and 4A: 0.4375 inch plus 0.125 inch for
seating
All Other Sizes: 0.75 inch plus 0.125 inch for seating
Other Travel Information: See tables 3, 1, and 2
Effective Diaphragm Areas
See table 2
Actuator Construction Materials
See table 4
Valve Body Flow Coefficients
See Fisher Catalog 12

Actuator Pressure Setting Ranges
655: See table 3
655R: See table 1
Actuator Yoke Boss Diameters and Valve Stem
Connections
Sizes 3A-36: J 2-1/8 inch yoke boss with J 3/8 inch
stem connection
Sizes 4A-46: J 2-13/16 inch yoke boss with J 1/2
inch stem connection

Actuator Casing Connection
1/2 - 14 NPT
Actuator Options
J Travel indicator
J Casing-mounted handwheel/adjustable travel stop
J Steel upper diaphragm for sizes A and B
J PTFE diaphragm protectors
J Fluorocarbon diaphragm for high temperature
service (up to 149_C [300_F])

1. Consult your Emerson Process Management sales office for fluid and temperature capabilities of nonstandard diaphragm materials.

2

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Table 1. Fisher 655R Pressures and Sensitivities at 0.4375 Inch Maximum Travel(1) (Relief Service)
SPRING
INFORMATION

PART NUMBER

1E7933
27082

1E7954
27082

1E7924
27082

Spring Rate, Pounds per Inch

2100

1770

1470

830

Safe Load, Pounds

3045

2600

2200

1630

Minimum

NA(3)

NA(3)

65(4)

43(5)

Maximum(2)

NA(3)

NA(3)

146

43(4)

35(4)

29(4)

Size 3B

64

64

Size 4B

89

77

64

53

38

26(4)

22(4)

18(4)

12(5)

Size 32

38

38

Size 42

53

45

38

31

Sizes 3A and 4A

Minimum, Sizes 3B and 4B
Maximum(2)

Minimum, Sizes 32 and 42
Maximum(2)
Actuator
Pressure
Settings
Ranges, Psig

Maximum(2)

13(4)

24

24

Size 43

33

28

11(4)

9(4)

Size 34

16

16

Size 44

23

19

Minimum, Sizes 35 and 45

7(4)

5.5(4)

Size 35

11

11

Size 45

15

13

Minimum, Sizes 36 and 46

5(4)

4.2(4)

Size 36

7.7

7.7

Size 46

10.5

9

Minimum, Sizes 34 and 44
Maximum(2)

Maximum(2)

Maximum(2)
Actuator
Sensitivities,
Inches of
Travel
Obtained
per Psig of
Change(7)

16(4)

Size 33

Minimum, Sizes 33 and 43

1F7143
27092

1F1769
27092

1F1768
27092

1F1767
27032

1F7144
27112

1F7130
27112

612

490

368

246

123

1170

1060

843

545

290

37(5)

34(5)

20(5)

119

85

75

57

19(5)

17(5)

NA(3)

NA(3)

NA(3)
NA(3)

11(4)

7(5)

6.5(5)

24

20

14.5(6)

7(4)

5(5)

4(5)

4.1(5)

16

13

10

7.9(6)

5(4)

3.2(5)

2.8(5)

2.5(5)

1.5(5)

1.3(5)

11

9

6.3

5.5(6)

4.2(6)

2.8(6)

3.5(4)

2.3(5)

2(5)

1.8(5)

1.1(5)

.9(5)

.7(5)

7.7

6.3

4.5

4(6)

3(6)

2(6)

1(6)

.0163

.0216

NA(3)

Sizes 3A and 4A

NA(3)

NA(3)

.0064

.0098

.0131

Sizes 3B and 4B

.0087

.0103

.0124

.0209

.0286

Sizes 32 and 42

.013

.015

.018

.0294

NA(3)

Size 33 and 43

.022

.026

.031

.051

.069

Sizes 34 and 44

.033

.039

.046

.078

.104

.128

Sizes 35 and 45

.052

.061

.076

.126

.169

.214

.278

.416

Sizes 36 and 46

.076

.089

.106

.183

.250

.309

.410

.603

NA(3)

NA(3)

NA(3)

NA(3)

1.19

1. Effects of packing box friction, unbalance & weight of valve plug not considered in calculations.
2. Greatest allowable pressure (with the value closed) that will not exceed the safe load of the actuator spring but will still allow 0.4375 inch travel.
3. This spring-actuator size combination not available.
4. Least pressure required (at 0.25 inch travel) to assure 1/8 inch spring compression.
5. Least pressure required (at 0.25 inch travel) to assure 200 pounds of seating force.
6. Limited by adjusting screw.
7. Average for minimum and maximum pressures at zero and 0.25 inch travel.

Table 2. Effective Diaphragm Area, Square Inches
ACTUATOR SIZE

INCHES TRAVEL DOWN FROM UPPER CASING STOP
0

0.125

0.1875

0.25

0.375

0.4375

0.5

0.5625

0.75

3A, 4A

10.2

9.6

9.5

9.4

9.2

9.1

8.9

8.7

7.4

0.875
6

3B, 4B

23.5

21.6

21.1

20.8

20.5

20.3

20.1

19.8

18.1

16

32, 42

40

36.4

35.2

34.2

32.6

31.8

31

30.3

28.2

26.4

33, 43

63

58

56.8

55.5

53.5

52.7

52

51.2

49.3

47.6

34, 44

93

84.8

82.8

81

78.8

77.8

77

76

73.5

72

35, 45

134

129.2

127.2

125.4

122.2

120.5

119

117.6

114.1

112

36, 46

190

181.5

179

177

173.5

172.3

171

169.8

166.5

163.5

3

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Table 3. Fisher 655 Pressures and Sensitivities at 0.4375 Inch Maximum Travel(1) (Reducing Service)
SPRING
INFORMATION

PART NUMBER

1E7933
27082

1E7954
27082

1E7924
27082

Spring Rate, Pounds per Inch

2100

1770

1470

830

Safe Load, Pounds

3045

2600

2200

1630

Minimum(2)

NA(4)

NA(4)

78

44

Maximum(3)

Sizes 3A
and 4A
Sizes 3B
and 4B

Actuator
Pressure
Setting
Ranges, Psig

Sizes 32
and 42
Sizes 33
and 43
Sizes 34
and 44

1F7143
27092

1F1769
27092

1F1768
27092

1F1767
27032

1F7144
27112

1F7130
27112

612

490

368

246

123

1170

1060

843

545

290

32

26

19

78(5)

59(5)

NA(4)

NA(4)

174

135

96

Minimum(2)

50

42

35

20

14

Maximum(3)

107

92

78

60

43

Minimum(2)

32

26

22

12

Maximum(3)

65

55

47

36

Minimum(2)

19

16

14

7

Maximum(3)

40

34

29

22

16

Minimum(2)

13

11

9

5

3.8

2.8

Maximum(3)

27.5

23.4

20

15.5

11

8.5

NA(4)

NA(4)

NA(4)
NA(4)

5.2

NA(4)

Sizes 35
and 45

Minimum(2)

8.3

7

5.8

3.3

2.4

2

1.5

1

Maximum(3)

17.8

15.2

13

10

7.2

5.9(5)

4.4(5)

2.9(5)

Sizes 36
and 46

Minimum(2)

5.8

4.9

4.1

2.3

1.7

1.3

1

0.7

0.34

Maximum(3)

12.7

10.8

9.2

7.1

5.1

4.2(5)

3.1(5)

2.1(5)

1.1(5)

0.0161

0.0212

Actuator
Sensitivities,
Inches of
Travel
Obtained
per Psig of
Change(6)

Sizes 3A and 4A

NA(4)

NA(4)

0.0055

0.0095

0.0121

Sizes 3B and 4B

0.0087

0.0103

0.0126

0.0217

0.029

Sizes 32 and 42

0.012

0.014

0.017

0.028

NA(4)

Sizes 33 and 43

0.021

0.026

0.031

0.050

0.069

Sizes 34 and 44

0.032

0.037

0.045

0.076

0.104

0.132

Sizes 35 and 45

0.055

0.059

0.072

0.121

0.167

0.200

0.264

0.380

Sizes 36 and 46

0.075

0.086

0.106

0.183

0.244

0.303

0.400

0.610

NA(4)

NA(4)

NA(4)

NA(4)

1.21

1. Effects of packing box friction, unbalance & weight of valve plug not considered in calculations.
2. Least pressure required to seat the valve and still allow 0.4375 inch travel when the pressure is released.
3. Greatest allowable pressure (at 0.25 inch travel) that will let the valve be stroked closed without exceeding the safe load of the actuator spring.
4. This spring-actuator size combination not available.
5. Limited by adjusting screw.
6. Average for minimum and maximum pressures at zero and 0.25 inch travels.

Installation
These regulators may be installed in any position, as
orientation is not a problem. But for steam service, the
control line should be installed so that condensate
drains back into the diaphragm casing, thus
maintaining a water seal on the diaphragm. A strainer
(such as the Fisher 262K) is always recommended
ahead of the valve body to protect body and trim from
damaging particles.
Dimensions are given in figure 1. Refer to the
appropriate instructions before installing the
regulator.

Ordering Information
When ordering, specify:

4

1. All information requested in the Ordering
Information section of the valve body bulletin.
2. Actuator type number and size
3. Actuator travel
4. Valve plug stem diameter and connection size
5. Desired regulator orientation in pipeline
6. Magnitude and type of remote loading pressure, if
applicable (for instance, 3-15 psig controller output
signal)
7. Desired actuator options

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Table 5. Actuator Dimension, Inches

Figure 1. Actuator Dimensions, Inches
(also see table 5)
6.75

1/2 - 14
NPT

SIZE

C
DIAMETER

Without Handwheel

With Handwheel

3A
3B
32
33
34

5.88
9.00
9.88
11.38
13.12

17.56
18.19
17.81
17.81
18.44

22.44
24.50
23.00
23.00
23.62

35
36
4A
4B
42

16.00
18.62
5.88
9.00
9.88

19.19
19.19
19.50
20.12
19.75

24.38
24.38
24.38
26.44
24.94

43
44
45
46

11.38
13.12
16.00
18.62

19.75
20.38
21.12
21.12

24.94
25.56
26.31
26.31

C

E

Total Capability of Fisher
655-ED
The following charts (figures 2 through 11) show the
complete capability of the 655-ED, including travels
greater than 0.25 inch. Included are charts for Cv, Cg,
and Cs for the ED valves of various sizes and charts for
various casing sizes for the 655 actuator.
An example on the use of the charts follows:

AV6711-A
A1417

Table 4. Actuator Construction Materials
Part

Diaphragm casings
Yoke

Material
Sizes 3A, 3B, 4A,
and 4B

Cast iron standard,
steel available

All other sizes

Pressed steel,
zinc plated

Cast iron standard, steel available

Spring

Steel alloy

Spring seat

Forged steel

Travel stop

Steel

Diaphragm plate

Cast iron

Diaphragm

CR (Chloroprene) (standard)(1)

Stem and adjusting screw

Steel, cadmium plated

1. Refer to the chart showing the Cv for the ED design.
Assume your customer says his normal Cv is 37, but
can vary from 30 to 44 and the customer wants to
control at 110 psi. The NPS 2 will fit this quite well and
at the top of the chart you will notice that this requires
a travel from 0.25 inch to 0.375 inch with the normal
travel at 0.3125 inch.
2. Next, refer to the curve on the 655-ED, A-CASING
chart of diaphragm pressure versus valve travel. Enter
the chart at 0.3125 inch valve travel and proceed up
until you intersect the 110 psi pressure. You will note
that spring drawing 1F7143 is at this intersection. You
can then readily see that when the flows vary, the
pressure will vary from approximately 118 psi to 105
psi as the valve travels from 0.25 inch to 0.375 inch.

1. Consult your Emerson Process Management sales office for fluid and temperature
capabilities of nonstandard diaphragm materials.

5

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 2. ED Design, Liquid Flow
0

0.0625

0.125

0.25

0.1875

0.3125

0.375

0.4375

TRAVEL (INCHES)

1
0

4.2

7.7

11.5

14.7

17.2

18.9

20.1

0

50.7

12.3

17.4

22.7

27.7

32.1

35.7

0

7.4

14.7

22.5

29.9

37.2

44.2

50.1

0

9.8

18.0

25.6

33.2

41.4

49.1

57.2

0

12.1

23.4

32.2

43.5

53.9

65.2

75.7

0

16.3

27.6

36.4

46.4

57.7

70.3

82.8

0

23.0

43.7

66.7

92.0

112.7

133.0

163.6

1-1/2

2
ED
VALVE
SIZE,
NPS
2-1/2

3

4

6

Cv

A7057

6

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 3. ED Design, Gas Flow
0

0.0625

0.125

0.25

0.1875

0.3125

0.375

0.4375

TRAVEL (INCHES)

1

1-1/2

2

0

119

264

392

0

184

374

571

0

221

465

0

282

0

563

600

619

748

911

1061

1176

735

1005

1274

1531

1776

563

807

1074

1372

1690

1971

342

709

1027

1394

1760

2201

2592

0

460

837

1130

1465

1841

2302

2804

0

620

1395

2170

2945

3978

4573

5425

494

ED
VALVE
SIZE,
NPS
2-1/2

3

4

6

Cg

A7058

7

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 4. 655 ED, A Casing, Diaphragm Pressure versus Valve Travel
280
MAX SPRING ADJ
MIN SPRING ADJ
240

200

SPRING
PART
NUMBER

160
1E7924
PRESSURE
(PSIG)
1E7953
120

1F7143
1E7923

80

1F1769
1F1768
40

(2.45 PSIG)

0
SEATED

0.0625

0.125

0.1875

0.25

0.3125

TRAVEL (INCHES)
A7059

MAX, MIN CURVES POSITIONED RESPECTIVELY

8

0.375

0.4375

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 5. ED Design, Steam Flow

0

0.0625

0.125

0.25

0.1875

0.3125

0.375

0.4375

TRAVEL (INCHES)

1

0

6.0

12.8

19.6

24.7

28.2

30.0

31.0

0

9.2

18.7

28.6

37.4

45.6

53.1

0

11.1

23.3

36.8

50.3

63.7

76.6

88.8

0

14.1

28.2

40.4

53.7

68.6

84.5

98.6

0

17.1

35.5

51.4

69.7

88.0

110.1

129.6

0

23.0

41.9

56.5

73.3

84.6

115.1

140.2

0

31.0

69.8

108.5

147.3

198.9

228.7

1-1/2
58.8

2
ED
VALVE
SIZE,
NPS
2-1/2

3

4

6
271.3

Cs

A7060

9

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 6. 655 ED, B Casing, Diaphragm Pressure versus Valve Travel
200
MAX SPRING ADJ
MIN SPRING ADJ
175

150

125

SPRING
PART
NUMBER

100
1P7888
1E7933

PRESSURE
(PSIG)

1E7954

75

1E7924

50
1F7143
1F1769
25

(1.06 PSIG)

0
SEATED

0.0625

0.125

0.1875

0.25

0.3125

TRAVEL (INCHES)
A7061

MAX, MIN CURVES POSITIONED RESPECTIVELY

10

0.375

0.4375

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 7. 655 ED, #20 Casing, Diaphragm Pressure versus Valve Travel
160
MAX SPRING ADJ
MIN SPRING ADJ
140

120

100

80

SPRING
PART
NUMBER

PRESSURE
(PSIG)

60
1E7933
1E7954
40

1E7924

1F7143
1F1769

20

0

(0.63 PSIG)
SEATED

A7062

0.0625

0.125

0.1875

0.25

0.3125

0.375

0.4375

TRAVEL (INCHES)

MAX, MIN CURVES POSITIONED RESPECTIVELY

11

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 8. 655 ED, #30 Casing, Diaphragm Pressure versus Valve Travel
80
MAX SPRING ADJ
MIN SPRING ADJ
70

60

50

SPRING
PART
NUMBER

40
PRESSURE
(PSIG)
1E7933
30

1E7954
1E7924

20
1F7143
1F1769
10

(0.40 PSIG)

0
SEATED

A7063

0.0625

0.125

0.1875

0.25

0.3125

TRAVEL (INCHES)

MAX, MIN CURVES POSITIONED RESPECTIVELY

12

0.375

0.4375

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 9. 655 ED, #40 Casing, Diaphragm Pressure versus Valve Travel
40
MAX SPRING ADJ
MIN SPRING ADJ
35

30
SPRING
PART
NUMBER
25
1E7933

20

1E7954

PRESSURE
(PSIG)

1E7924

15

1F7143

10

1F1769

5

(0.27 PSIG)

0
SEATED

0.0625

0.125

0.1875

0.25

0.3125

0.375

0.4375

TRAVEL (INCHES)
A7064

MAX, MIN CURVES POSITIONED RESPECTIVELY

13

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 10. 655 ED, #50 Casing, Diaphragm Pressure versus Valve Travel
40
MAX SPRING ADJ
MIN SPRING ADJ
35

30

25

SPRING
PART
NUMBER

20
PRESSURE
(PSIG)

1E7933

15

1E7954
1E7924
10

1F7143
1F1769
1F1768

5

1F1767
1F7144
(0.19 PSIG)

0
SEATED
A7065

0.0625

0.125

0.1875

0.25

0.3125

TRAVEL (INCHES)

MAX, MIN CURVES POSITIONED RESPECTIVELY

14

0.375

0.4375

Product Bulletin

655 Actuator

61.9:655
December 2012

D100148X012

Figure 11. 655 ED, #60 Casing, Diaphragm Pressure versus Valve Travel
20
MAX SPRING ADJ
MIN SPRING ADJ

15

SPRING
PART
NUMBER

1E7933
10
1E7954
PRESSURE
(PSIG)
1E7924

1F7143

5

1F1769
1F1768
1F1767
1F7144
1F7130
(0.13 PSIG)

0
SEATED

A7066

0.0625

0.125

0.1875

0.25

0.3125

0.375

0.4375

TRAVEL (INCHES)

MAX, MIN CURVES POSITIONED RESPECTIVELY

15

Product Bulletin
61.9:655
December 2012

655 Actuator
D100148X012

Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher and easy-e are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process
Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective
owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore

www.Fisher.com
E
161997, 2012 Fisher Controls International LLC. All rights reserved.



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