Emerson Fisher 8532 Data Sheet

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Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Fisherr 8532 High-Performance Butterfly
Valve
The Fisher 8532 high-performance butterfly valve
provides outstanding performance under extreme
pressure and temperature conditions. The 8532 valve
maintains tight shutoff, is available in a fire-tested
version, and can be specified for cryogenic
applications.
The 8532 valve is available as either a flangeless,
wafer-style design or as a single-flange (lugged)
design. A splined drive shaft combines with a variety of
spring-and-diaphragm or pneumatic piston actuators
to make the 8532 a reliable, high-performance
butterfly valve for a variety of throttling and on-off
applications in the various process industries.
W9138-2

The 8532 valve can be supplied with one of several
dynamic seals (figure 4) that can be used in a variety of
demanding applications. With the appropriate seal
selection and materials of construction, the
pressure-assisted seal provides excellent shutoff
against the full CL150 or CL300 pressure ratings.



Economically Designed for Minimal Deadband–A
splined end connection on the drive shaft allows
lever clamping by most Fisher rotary actuators.



Application Versatility–Standard construction
materials and seal assemblies provide long life and
outstanding performance in a broad range of liquid
and gas applications.



Ease of Maintenance–Interchangeability of all parts
including shafts and discs simplifies service and
reduces maintenance costs.



Improved Environmental Capabilities– The optional
ENVIRO-SEAL packing system is designed with very
smooth stem surfaces and live-loading provides
improved sealing, guiding, and loading force
transmission. The ENVIRO-SEAL packing system can
control emissions below the EPA (Environmental
Protection Agency) limit of 100 ppm (parts per
million).



Easy Installation–The valve body self-centers on the
line flange bolts as a fast, accurate means of
centering the valve in the pipeline.



Reliable Flange Gasketing Surface–Seal retainer
screws are located so there is no interference with
the sealing function of either flat sheet or spiral
wound line flange gaskets.

Unless otherwise noted, all NACE references are to
NACE MR0175-2002.

Features


Economical Tight Shutoff–The pressure-assisted
seal design provides tight shutoff against the full
pressure rating of the specified valve.



Safety–Shaft blowout protection is designed into
the 8532 valve (figure 6). The anti-blowout gland
fits securely over the valve shaft which has been
turned down to form a circumferential shoulder
that contacts the anti-blowout gland.



Excellent Flow Control–With a modified equal
percentage flow characteristic, the 8532 can be
used for throttling applications through 90 degrees
of disc rotation. Rangeability is 100 to 1.

www.Fisher.com

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Specifications
Seal Ring: J PTFE, J S31600 (316 SST), J S21800,
J S31600/PTFE, J UHMWPE(4), or J CTFE(5).

Available Valve Configurations
J Flangeless, wafer-style or J single-flange (lugged)
control valve with a one-piece valve body, a
two-component seal/backup O-ring, and a splined
drive shaft

Backup ring: J Nitrile, J Chloroprene, J PTFE,
J Fluorocarbon--for a broad range of hydrocarbon
and chemical process applications(1) or J EPR--for
process applications including steam and water(1). A
backup ring is not used with the NOVEX seal
Packing: J PTFE V-ring (standard packing),
J Graphite (optional), or J ENVIRO-SEALt
packing (optional).
Bearings: J PEEK(2) (standard material), and
J S31600, J PTFE Composition, or J CoCr-A (Alloy
6) (optional)

Valve Body Sizes
NPS J 14, J 16, J 18, J 20, and J 24
End Connection Style
J Flangeless, wafer-style or J single flange valve
body designed to fit between raised-face mating
flanges per ASME B16.5 CL150 or CL300
Maximum Inlet Pressure/Temperature(1)
Consistent with J CL150 and J CL300
pressure/temperature ratings per ASME B16.34. Also,
see figures 2 and 3 for additional information
Available Seal Configurations
Standard Constructions
See figure 4 and table 2
Standard Construction Materials
Valve Body and Disc: ASTM grades of J carbon steel
or J stainless steel
Disc Coating:
Hardcoating (also see table 2): J Standard when used
with NOVEX seal, J Phoenix III seal, or J Cryogenic
seal
Chromium Carbide: Standard when service
temperature exceeds 538_C (1000_F)
Shaft: ASTM grade of J S17400 (17-4PH H1025 SST),
J S17400 (17-4PH H1150M SST), or J S20910
Shaft Extension Lengths:
High Temperature J None required for temperatures
less than 343_C (650_F),
J 6 inches for temperatures from 343 to 538_C (650
to 1000_F), or J 12 inches for temperatures above
538_C (1000_F)
Cryogenic J 914mm (36 inches)

Valve Body Classification
Face-to-face dimensions are in compliance with MSS
SP68 and API 609 standards; valve bodies are
designed for installation between ASME B16.5 CL150
or CL300 raised-face flanges
Shutoff Classification. Per ANSI/FCI 70-2 and
IEC 60534-4
Standard Soft Seal: Bidirectional bubble-tight shutoff
NOVEX Seal: Unidirectional shutoff
1% of Class IV (preferred flow direction only(3)),
optional Class VI
Phoenix III Seal: Bidirectional bubble-tight
Phoenix III Seal for Fire Tested Applications: Class VI
shutoff. Contact your Emerson Process Management
sales office for more information.
Flow Characteristic
Modified equal percentage
Flow Coefficients
See table 1 and Fisher Catalog 12
Noise Levels
See Catalog 12 for sound pressure level prediction
Available Actuators
J Spring-and-diaphragm, or J pneumatic piston
(continued)

2

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012
Specifications (continued)
Disc Rotation

ENVIRO-SEAL Packing
This optional J PTFE or J graphite packing system
provides improved sealing, guiding, and transmission
of loading force to control liquid and gas emissions.
See Bulletin 59.3:041 ENVIRO-SEAL Packing Systems
for Rotary Valves for more information.

Clockwise to close
Valve Dimensions and Approximate Weights
See figures 7, 8, 9 and 10

1. The pressure/temperature limits in this bulletin (figures 2 and 3), and any application code or standard limitation, should not be exceeded.
2. PEEK stands for poly-ether-ether-ketone.
3. For optimum seal performance, the preferred valve orientation at shutoff is with the retaining ring downstream from the high pressure side of the valve.
4. UHMWPE stands for ultra high molecular weight polyethylene.
5. CTFE not recommended for fast cycling, less than 2 seconds. Contact your Emerson Process Management sales office for other seals available for fast cycling or tighter shutoff.

Figure 1. Flow Direction
REVERSE
FLOW (NORMAL FLOW DIRECTION)

FORWARD
FLOW

FACE SIDE OF DISC

A7092

Table 1. Flow Coefficients(1)(3)
MAX Cv (2), VALVE 90_ OPEN

VALVE SIZE,
NPS

CL150

CL300

14
16
18
20
24

6320
8600
11,050
13,850
21,500

4550
5630
8230
9530
12,510

1. To obtain the flow coefficient Kv in terms of cubic meters per hour at one kilogram
force per square centimeter differential pressure across the valve, using the following
multiplier: Kv = 0.856 Cv .
2. Measured in gallons per minutes at 1 psi differential pressure across the valve.
3. See the section titled Coefficients in this bulletin, and also Catalog 12 for a
complete listing of flow coefficients.

Installation
Recommended installation for the 8532 valve is with
the shaft horizontal in a normal-flow direction.
Horizontal installation will enhance valve performance
because process fluid flow will sweep entrained solids
from valve surfaces. This sweeping action prevents
particle buildup on seal surfaces. However, the valve

may be installed in either the forward or reverse flow
direction.
The standard soft seal offers bubble-tight, bidirectional
shutoff. To meet the performance requirements of
many of today's fire-tested requirements, a Phoenix III
valve must be installed in the preferred valve
orientation. Both the NOVEX and cryogenic seals are
uni-directional and should be installed with the shaft
upstream of the seal.
Unique operating conditions may require a specific
combination of actuator motion. To satisfy unique
operating requirements, the valve and actuator can be
assembled in eight ways, providing for actuator
motion and open disc position. For assistance in
selecting the appropriate combination of actuator
action and open valve position, consult your Emerson
Process Management sales office.
Dimensions and weights for wafer-style and
single-flange valves are shown in figures 7, 8, 9 and 10.

3

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Figure 2. Maximum Pressure/Temperature Ratings for Soft Seal, NOVEX Seal and Phoenix III Seal, CL150 and CL300

CL150 SOFT SEAL

CL300 SOFT SEAL

CL150 NOVEX SEAL

CL300 NOVEX SEAL

CL150 PHOENIX II SEAL

CL300 PHOENIX II SEAL

C0759-1

Note
1 Because of potential erosive effects and premature seal failure that can occur, throttling PTFE seals at differential pressures greater than 300 psid at disk angles less than
20 degrees open is not recommended.
2 Temperature limitations do not account for the additional limitations imposed by the backup O-ring used with this seal. To determine the effective temperature limita­
tion of the appropriate seal backup O-ring combination, refer to table 1.

4

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Figure 3. Maximum Pressure/Temperature Ratings for Cryogenic Seal, CL150 and CL300

B2336

CL150 CRYOGENIC SEAL

CL300 CRYOGENIC SEAL

Figure 4. Available Seal Configurations
BACKUP
O-RING

GRAPHITE
GASKET

BODY

BODY

SEAL RING
RETAINING
RING

RETAINING
RING
NORMAL
FLOW DIRECTION
(REVERSE FLOW)

VALVE DISK

PTFE OR UHMWPE SOFT
SEAL WITH BACKUP O-RING
GRAPHITE
GASKET

METAL
SEAL RING
VALVE DISK

NOVEX METAL SEAL

NORMAL
FLOW
DIRECTION
(REVERSE
FLOW)

BODY

BACKUP
O-RING
METAL
SEAL RING

VALVE DISK
B2313-2

PHOENIX III
FIRE SAFE SEAL

RESILIENT
INSERT
NORMAL
FLOW DIRECTION
(REVERSE FLOW)

5

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Figure 5. Typical Valve Assembly
SEE FIGURE 3

THRUST BEARING

SEAT RETAINING RING

DISC

UPPER SHAFT

DISC PINS

BEARINGS

THRUST
BEARING

GASKET RETAINER

ANTI-BLOWOUT GLAND

ANTI-BLOWOUT FOLLOWER

PACKING FOLLOWER

GASKET

A7093

VALVE BODY

Figure 6. Blowout Protection
HEX NUT
PACKING
FLANGE

SHAFT

SPRING PACK
ASSEMBLY

PACKING
FLANGE

HEX NUT

ANTIBLOWOUT
FLANGE

STUD
HEX NUT

SHAFT SHOULDER

A7090

PACKING
FOLLOWER
TYPICAL PTFE V-RING
PACKING

STANDARD PACKING ARRANGEMENT

6

STUD

LUBRICANT
HEX NUT

SHAFT
SHOULDER

ANTI-EXTRUSION
RING

ANTIBLOWOUT
FLANGE

PACKING
SET

PACKING
BOX RING

ENVIRO-SEAL ARRANGEMENT (PTFE SHOWN)

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Table 2. Material Temperature Ratings
COMPONENT AND MATERIAL OF CONSTRUCTION(1)

_F

-29 to 427
-198 to 538
over 538 to 816

-20 to 800
-325 to 1000
over 1000 to 1500

-29 to 427
-198 to 538
over 538 to 816

-20 to 800
-325 to 1000
over 1000 to 1500

-198 to 916
-254 to 316
-254 to 593
-254 to 343

-325 to 1500
-425 to 600
-425 to 1100
-425 to 650

Shaft
S20910
S17400 (17-4 pH 1025)
S17400 (17-4 pH H1150M)
N07718
N07750

-198 to 538
-73 to 427
-196 to 427
-254 to 704
over 593 to 816

-325 to 1000
-100 to 800
-320 to 800
-425 to 1300
over 1100 to 1500

Bearings(6)
PEEK (standard)
S31600(4)
R30006 (Alloy 6)
Bronze

-73 to 260
-198 to 816
-198 to 816
-254 to 302

-100 to 500
-325 to 1500
-325 to 1500
-425 to 575

-148 to 232
-198 to 916
-198 to 538
-148 to 315

-325 to 450
-325 to 1500
-325 to 1000
-325 to 600

-29 to 93
-43 to 149
-54 to 182
-29 to 204
-73 to 204

-20 to 200
-45 to 300
-65 to 360
-20 to 400
-100 to 400

-29 to 93
-43 to 93
-54 to 93
-29 to 93
-73 to 93

-20 to 200
-45 to 200
-65 to 200
-20 to 200
-40 to 200

-40 to 149
-54 to 149
-62 to 204
-40 to 232
-29 to 538
-29 to 816
-29 to 816

-40 to 300
-65 to 300
-80 to 400
-100 to 200
-20 to 1000
-20 to 1500
-40 to 1500

Valve Body(2)
Carbon Steel (WCC or SA 516-70)(7)
CF8M (316 SST) CL150 and CL300
CF8M(3) FMS 20B16 a Fisher material standard (0.04% min carbon) CL300
Disc
WCC carbon steel
CF8M (316 SST)
CF8M(3) FMS 20B16 a Fisher material standard (0.04% min carbon) CL300
Disc Coating
Chromium Carbide
Chrome Plating
Chromium Coating
Electroless Nickel Coating (ENC)

Seal Ring and
Backup Ring

Seal Ring

TEMPERATURE RANGE
_C

Packing
PTFE Packing and PTFE ENVIRO-SEAL Packing
Graphite packing
Graphite packing with oxidizing media
Graphite ENVIRO-SEAL Packing
PTFE Seal Ring
Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring
PTFE Backup O-Ring
UHMWPE(5) Seal Ring (CL150 Only)
Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring
PTFE Backup O-Ring
Phoenix III and/or Fire Tested Construction
S31600 and PTFE Seal Ring with Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring
NOVEX S31600 Seal(4) Ring (CL150)
NOVEX S31600 Seal(4) Ring (CL300)
NOVEX S21800 Seal(4) Ring (CL300)
Cryogenic Seal Ring

Contact your Emerson Process Management sales office

1. NACE trim constructions are available; consult your Emerson Process Management sales office.
2. Special gasket retainer bolts are required for over 482_C (900_F)
3. Special retaining ring screws for single flange valves over 538_C (1000_F)
4. For a complete material description, contact your Emerson Process Management sales office.
5. UHMWPE stands for ultra high molecular weight polyethylene.
6. Special thrust bearings are required for high temp. applications over 343_C (650_F) (with 6- and 12-inch shaft extensions). Constructions with carbon steel valves and SST discs may require
special thrust bearings at temperatures less than 343_C (650_F).
7. Cast or wrought /plate grades used interchangeably, depending upon availability - unless requested by customer.

7

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Table 3. Dimensions and Weights, Wafer Style Valves, CL150
S
(Shaft Dia
at Yoke
Bearings)

T

U

W

Y

422
465
529

31.8
31.8
39.6

235
235
273

46.0
46.0
50.8

17.5
17.5
20.1

--28.6 4 holes
31.8 4 holes

72
94
139

464
581

584
692

44.5
57.2

273
337

50.8
76.2

20.1
23.9

31.8 4 holes
34.9 4 holes

167
255

12.88
14.62
15.75

13.04
14.77
16.49

16.62
18.31
20.81

1-1/4
1-1/4
1-9/16

9.25
9.25
10.75

1.81
1.81
2.00

0.69
0.69
0.81

--1-1/8 4 holes
1-1/4 4 holes

158
207
307

17.00
19.38

18.27
22.87

23.00
27.25

1-3/4
2-1/4

10.75
13.25

2.00
3.00

0.81
0.94

1-1/4 4 holes
1-3/8 4 holes

368
563

Valve Size,
NPS

A(1)

D

G

K

M(2)

R

14
16
18

91.9
102
114

208
208
356

295
318
349

327
371
400

331
375
419

20
24

127
154

356
356

381
438

432
492

14
16
18

3.62
4.00
4.50

8.19
8.19
14

11.62
12.50
13.75

20
24

5.00
6.06

14
14

15.00
17.25

mm

kg

Inches

Pounds

1. Face-to-face dimensions are in compliance with MSS SP68 and API 609 specifications.
2. M is the minimum pipe or flange I.D. required for disc swing clearance.

Figure 7. Dimensions and Weights, Wafer Style Valves, CL150 (also see table 3)

C0729-1

8

Approx
Weight

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Table 4. Dimensions and Weights, Single Flange Valves, CL150
Valve Size,
NPS

A(1)

D

G

K

M(2)

R

14
16
18

91.9
102
114

208
208
356

295
318
349

327
371
400

331
375
419

531
607
645

20
24

127
154

356
356

381
438

432
492

464
581

696
822

14
16
18

3.62
4.00
4.50

8.19
8.19
14

11.62
12.50
13.75

12.88
14.62
15.75

13.04
14.77
16.49

20.88
23.88
25.38

20
24

5.00
6.06

14
14

15.00
17.25

17.00
19.38

18.27
22.87

27.38
32.38

S
(Shaft Dia
at Yoke
Bearings)

Approx
Weight

T

U

W

Y

31.8
31.8
39.7

235
235
273

46.0
46.0
50.8

14.2
14.2
20.1

-------

95
138
178

44.5
57.2

273
337

50.8
76.2

20.1
23.9

-----

224
315

1-1/4
1-1/4
1-9/16

9.25
9.25
10.75

1.81
1.81
2.00

0.56
0.56
0.81

1-8 12 Holes
1-8 16 Holes
1-1/8-8 16 Holes

209
304
393

1-3/4
2-1/4

10.75
13.25

2.00
3.00

0.81
0.94

1-1/8-8 20 Holes
1-1/4-8 20 Holes

493
773

mm

kg

Inches

Pounds

1. Face-to-face dimensions are in compliance with MSS SP68 and API 609 specifications.
2. M is the minimum pipe or flange I.D. required for disc swing clearance.

Figure 8. Dimensions and Weights, Single Flange Valves, CL150 (also see table 4)

C0730-1

9

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Table 5. Dimensions and Weights, Wafer Style Valves, CL300
Valve Size,
NPS

A(1)

D

G

K

M(2)

R

14
16
18

117
133
149

356
356
356

319
353
384

364
397
419

304
346
389

437
498
556

20
24

159
181

265
546

416
483

483
546

442
523

605
716

14
16
18

4.62
5.25
5.88

14
14
14

12.56
13.88
15.12

14.31
15.62
16.50

12
13.6
15.3

20
24

6.25
7.12

10-7/16
21-1/2

16.38
19.00

19.00
21.50

17.4
20.6

S
(Shaft Dia
at Yoke
Bearings)

T

U

W

Y

Approx
Weight

44.5
44.5
57.2

273
273
337

50.8
50.8
76.2

20.6
20.6
23.9

-------

121
183
227

76
76

337
337

76.2
76.2

23.9
23.9

-----

364
469

17.19
19.62
21.88

1-3/4
1-3/4
2-1/4

10.75
10.75
13.25

2
2
3

0.81
0.81
0.94

1-1/8-8 4 Holes
1-1/4-8 4 Holes
1-1/4-8 4 Holes

266
403
500

23.81
28.19

3
3

13.25
13.25

3
3

0.94
0.94

1-1/4-8 4 Holes
1-1/2-8 4 Holes

802
1035

mm

kg

Inches

Pounds

1. Face-to-face dimensions are in compliance with MSS SP68 and API 609 specifications.
2. M is the minimum pipe or flange I.D. required for disc swing clearance.

Figure 9. Dimensions and Weights, Wafer Style Valves, CL300 (also see table 5)

B2352

10

Product Bulletin

8532 Valve

51.6:8532
April 2013

D101552X012

Table 6. Dimensions and Weights, Single Flange Valves, CL300
Valve Size,
NPS

A(1)

D

G

K

M(2)

R

14
16
18

117
133
149

356
356
356

319
353
384

364
397
419

304
346
389

594
657
721

20
24

159
181

265
546

416
483

483
546

442
523

784
924

14
16
18

4.62
5.25
5.88

14
14
14

12.56
13.88
15.12

14.31
15.62
16.50

12.0
13.6
15.3

20
24

6.25
7.12

10-7/16
21-1/2

16.38
19.00

19.00
21.50

17.4
20.

S
(Shaft Dia
at Yoke
Bearings)

T

U

W

Y

Approx
Weight

44.5
44.5
57.2

273
273
337

50.8
50.8
76.2

20.6
20.6
23.9

-------

227
294
402

76
76

337
337

76.2
76.2

23.9
23.9

-----

544
821

23.38
25.88
28.38

1-3/4
1-3/4
2-1/4

10.75
10.75
13.25

2
2
3

0.81
0.81
0.94

1-1/8-8 16 Holes
1-1/4-8 20 Holes
1-1/4-8 24 Holes

500
649
886

30.88
36.38

3
3

13.25
13.25

3
3

0.94
0.94

1-1/4-8 24 Holes
1-1/2-8 24 Holes

1200
1810

mm

kg

Inches

Pounds

1. Face-to-face dimensions are in compliance with MSS SP68 and API 609 specifications.
2. M is the minimum pipe or flange I.D. required for disc swing clearance.

Figure 10. Dimensions and Weights, Single Flange Valves, CL300 (also see table 6)

B2353

11

Product Bulletin
51.6:8532
April 2013

8532 Valve

D101552X012

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 ENVIRO-SEAL 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
121991, 2013 Fisher Controls International LLC. All rights reserved.



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