Emerson Fisher 8580 User manual

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Fisherr8580 Rotary Valve
Contents
Introduction 1.................................
Scope of Manual 1.........................
Description 3..............................
Specifications 2............................
Installation 4..................................
Maintenance 6................................
Packing Maintenance 7.....................
Replacing the Seal Ring Assembly 11.........
Replacing the Disk, Shafts, or Bearings 11.....
Actuator Mounting 15.......................
Parts Ordering 17
............................
Parts Kits 17................................
Parts List 18................................
Introduction
Scope of Manual
This instruction manual includes installation,
maintenance, and parts information for the Fisher
8580 valve, DN50 through DN300 or NPS 2 through
NPS 12 (figure 1). Refer to separate instruction
manuals for information covering the power on-off
actuator and accessories.
Do not install, operate, or maintain an 8580 valve
without being fully trained and qualified in valve,
actuator, and accessory installation, operation, and
maintenance. To avoid personal injury or property
damage, it is important to carefully read, understand,
and follow all the contents of this manual, including
all safety cautions and warnings. If you have any
questions about these instructions, contact your
Emerson Process Management sales office before
proceeding.
Figure 1. Fisher 8580 Valve with 2052 Actuator
and DVC6000 Digital Valve Controller
W9425
SINGLE FLANGE STYLE
WAFER STYLE
W9498
Instruction Manual
D103300X012
March 2010 8580 Valve

8580 Valve
Instruction Manual
March 2010
2
Table 1. Fisher 8580 Valve Specifications
Specifications EN ASME
Valve Body Size DN 50, 80, 100, 150, 200, 250, and 300 NPS 2, 3, 4, 6, 8, 10, and 12
Pressure Rating PN 10 to 40 per EN 12516-1 CL150 and 300 per ASME B16.34
Valve Body Materials
EN 1.0619 steel WCC steel
EN 1.4409 stainless steel CF3M (316L) stainless steel
CW2M(1) CW2M(1)
M35-2(1) M35-2(1)
Disk Materials
PTFE Seal
EN 1.4409 stainless steel CF3M stainless steel
CW2M CW2M
M35-2 M35-2
Metal or
UHMWPE Seal Chrome-plated EN 1.4409 Stainless Steel Chrome-plated CF3M Stainless Steel
End Connections Mates with raised-face flanges
per EN 1092-1
Mates with raised-face flanges
per ASME B16.5
Valve Body Style Wafer (flangeless) and single flange with tapped holes
Face-to-Face Dimensions Meets MSS SP68, API 609, and EN 558 standards
Shutoff PTFE or UHMWPE seal ring - Class VI per ANSI/FCI 70-2 and IEC 60534-4
S31600 (316 SST) seal ring -1% of Class IV per ANSI/FCI 70-2 and IEC 60534-4
Flow Direction Standard (forward flow) is with the seal retainer facing upstream; reverse flow is permissible
within specified pressure drop limitations
Flow Characteristic Approximately linear
Disk Rotation Counterclockwise to open (when viewed from actuator side of valve body) through 90
degrees of disk rotation
1. This material is not listed in EN 125161 or ASME B16.34. See table 4 for pressure/temperature ratings.
Table 2. Valve Size, Shaft Diameter, and Approximate Weight
VALVE SIZE PRESSURE RATING SHAFT DIAMETER APPROXIMATE WEIGHT
Wafer-Style Single-Flange
DN NPS EN ASME mm Inches kg Pounds kg Pounds
50 2 PN10-40 CL150/300 12.7 1/2 4.7 10 6.7 15
80 3 PN10-40 CL150/300 15.9 5/8 7.5 17 11.2 25
100 4 PN10-40 CL150/300 19.1 3/4 12.5 28 17.6 39
150 6 PN10-40 CL150/300 25.4 1 15.7 35 26.5 58
200 8 PN10-16 CL150 31.8 1-1/4 30.2 67 40.2 89
PN25-40 CL300 31.8 1-1/4 33.9 75 46.0 102
250 10 PN10-16 CL150 31.8 1-1/4 38.9 86 50.5 111
PN25-40 CL300 31.8 1-1/4 51.8 114 79.2 175
300 12 PN10-16 CL150 38.1 1-1/2 68.7 151 98.3 217
PN25-40 CL300 38.1 1-1/2 76.6 169 104.6 231

8580 Valve
Instruction Manual
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Table 3. Material Temperature Capabilities
MATERIAL TEMPERATURE
LIMITS(1)
EN Materials
Valve Body Shaft Bearing Lining and Jacket Seal Packing _C_F
1.0619 Steel S17400 or
S20910
PEEK / PTFE PTFE PTFE or Graphite –10 to 232 14 to 450
UHMWPE PTFE or Graphite –10 to 93 14 to 200
Metal PTFE or Graphite –10 to 232 14 to 450
R30006 (Alloy 6) Metal Graphite –10 to 400(2) 14 to 752(2)
1.4409
Stainless Steel
S20910 PEEK / PTFE PTFE PTFE or Graphite –10 to 232 14 to 450
UHMWPE PTFE or Graphite –10 to 93 14 to 200
Metal PTFE or Graphite –10 to 232 14 to 450
R30006 (Alloy 6) Metal Graphite –10 to 500(2) 14 to 932(2)
CW2M N10276 PEEK / PTFE PTFE PTFE –10 to 232 14 to 450
M35-2 N05500 PEEK / PTFE PTFE PTFE –10 to 232 14 to 450
ASME Materials
Valve Body Shaft Bearing Lining and Jacket Seal Packing _C_F
WCC steel S17400 or
S20910
PEEK / PTFE PTFE PTFE or Graphite –29 to 232 20 to 450
UHMWPE PTFE or Graphite –18 to 93 0 to 200
Metal PTFE or Graphite –29 to 232 20 to 450
R30006 (Alloy 6) Metal Graphite –29 to 427(2) 20 to 800(2)
CF3M Stainless
Steel
S20910 PEEK / PTFE PTFE PTFE or Graphite –46 to 232 –50 to 450
UHMWPE PTFE or Graphite –18 to 93 0 to 200
Metal PTFE or Graphite –129 to 232 –200 to 450
R30006 (Alloy 6) Metal Graphite –129 to 454(2) –200 to 850(2)
CW2M N10276 PEEK / PTFE PTFE PTFE –46 to 232 –50 to 450
M35-2 N05500 PEEK / PTFE PTFE PTFE –46 to 232 –50 to 450
1. Minimum allowable temperature for PN series flanges is 10_C (14_F). See requirements of EN 13445-2 Annex B for applications below 10_C (14_F) with PN series flanges.
2. For applications exceeding 316_C (600_F), consult your Emerson Process Management sales office for appropriate disk material selection.
Table 4. Maximum Allowable Inlet Pressure for CW2M and M35-2 Valves
TEMPERATURE CW2M(1) M35-2(1)
150(2) 300(2) PN 10(2) PN 16(2) PN 25(2) PN 40(2) 150(2) 300(2) PN 10(2) PN 16(2) PN 25(2) PN 40(2)
_CBar Bar
–46 to 38
50
100
150
200
232
20.0
19.5
17.7
15.8
13.8
12.7
51.7
51.7
51.5
50.3
48.3
47.0
10.0
9.9
9.4
9.4
9.1
9.1
16.0
15.9
15.1
15.1
14.6
14.6
25.0
24.8
23.6
23.6
22.9
22.9
40.0
39.6
37.8
37.8
36.6
36.6
18.3
18.2
17.7
15.8
14.0
12.8
47.9
47.9
47.8
47.2
45.6
45.5
9.3
9.3
9.3
9.3
9.0
9.0
15.2
15.2
15.1
14.8
14.5
14.5
23.8
23.8
23.7
23.4
22.5
22.4
37.9
37.9
37.8
37.2
36.3
36.2
_FPsig Psig
–50 to 100
200
300
400
450
290
260
230
200
185
750
750
730
700
680
145
144
137
133
133
232
230
219
212
212
362
359
342
331
331
580
575
548
530
530
265
260
230
200
185
695
695
685
660
660
135
135
135
130
130
220
220
215
210
210
345
345
340
325
325
550
540
525
525
525
1. This material is not listed in EN 12516-1 or ASME B16.34. Also see the Installation section.
2. The designations PN or 150 and 300 are used only to indicate relative pressure-retaining capabilities and are not EN or ASME pressure-temperature rating class designations.
Description
The 8580 rotary valve offers excellent throttling
performance. An approximately linear flow
characteristic provides precise throttling control. The
8580 valve offers high cycle life and rugged
reliability.
Retainer clips provide for versatility to mount and
align the same wafer style valve body in different
piping configurations (ASME and EN ratings). The
valve body is compatible with PN 10 through PN 40,
CL150, and CL300 ratings. Face-to-face and
raised-face dimensions meet
EN 593, API 609, and MSS-SP68 standards.
The 8580 rotary valve features an
eccentrically-mounted disk with either soft or metal
seal, providing capability for enhanced shutoff. The
interchangeable sealing technology allows for the

8580 Valve
Instruction Manual
March 2010
4
same valve body to accept both soft and metal
seals.
Installation
Key numbers in this procedure are shown in figure
10 unless otherwise indicated.
WARNING
Always wear protective gloves,
clothing and eyewear when performing
any installation operations to avoid
personal injury.
To avoid personal injury or property
damage resulting from the bursting of
pressure retaining parts, be certain the
service conditions do not exceed either
the valve body rating or the flange joint
rating, or other limits given in table 1 or
on the nameplate. Use pressure-relieving
or pressure-limiting devices to prevent
the service conditions from exceeding
these limits.
If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section on page 6 in this manual.
CAUTION
The valve configuration and
construction materials were selected
to meet particular pressure,
temperature, pressure drop, and
controlled fluid conditions specified in
the customer’s order. Because some
valve body/trim material combinations
are limited in their pressure drop and
temperature range capabilities, do not
apply any other conditions to the valve
without first contacting your Emerson
Process Management sales office.
The maximum allowable inlet pressures for steel and
stainless steel valve bodies are consistent with the
pressure-temperature ratings shown in table 1,
except where further limited by the trim and packing
material temperature capabilities given in table 3.
Valves are also available in CW2M and M35-2 valve
body materials that are not listed in
EN 12516-1 or ASME B16.34. Valve bodies
constructed of these materials mate with EN and
ASME flanges but are not included in EN or ASME
pressure-temperature ratings and must not be
installed in systems requiring conformance to EN or
ASME standards. Maximum allowable inlet
pressures for 8580 valve bodies made of CW2M or
M35-2 construction materials are shown in table 4.
1. Install a three-valve bypass around the control
valve assembly if continuous operation is necessary
during inspection and maintenance of the valve
body.
2. Inspect the valve body to be certain it is free of
foreign material.
3. The valve is normally shipped as part of a control
valve assembly, with an actuator mounted on the
valve body.
If the valve body and actuator have been purchased
separately or if the actuator has been removed for
maintenance, mount the actuator, and adjust
actuator travel before inserting the valve body into
the line. This is necessary due to the measurements
that must be made during the actuator adjustment
process. Refer to the Actuator Mounting section on
page 15 of this manual and to the separate actuator
instruction manual for mounting and adjusting
instructions before proceeding.
4. Inspect adjacent pipelines to be certain they are
free of any foreign material, such as pipe scale or
welding slag, that could damage the valve body
seating surfaces.
CAUTION
Damage to the disk (key 3) will occur if
any pipe flanges or piping connected
to the valve body interfere with the
disk rotation path. However, the disk
can be rotated without interference
when the valve body is installed
between adjacent pipe flanges or
piping that has an inside diameter
equal to or greater than either
schedule 80 pipe or compatible EN
pipe sizes. If piping with a smaller
inner diameter than specified above is
connected to the valve, measure
carefully to be certain the disk rotates
without interference before putting the
valve into operation.

8580 Valve
Instruction Manual
March 2010
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Table 5. Stud Bolt Data
VALVE
SIZE
WAFER STYLE
PN 10 PN 16 PN 25 PN 40
DN
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
A
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
A
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
A
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
A
Dimen-
sion,
mm
50 4 M16X2 120 4 M16X2 120 4 M16X2 130 4 M16X2 130
80 8 M16X2 130 8 M16X2 130 8 M16X2 140 8 M16X2 140
100 8 M16X2 140 8 M16X2 140 8 M20X2.5 150 8 M20X2.5 150
150 8 M20X2.5 150 8 M20X2.5 150 8 M24X3 170 8 M24X3 170
200 8 M20X2.5 160 12 M20X2.5 160 12 M24X3 190 12 M27X3 210
250 12 M20X2.5 170 12 M24X3 180 12 M27X3 210 12 M30X3.5 230
300 12 M20X2.5 180 12 M24X3 190 16 M27X3 230 16 M30X3.5 250
VALVE
SIZE
SINGLE FLANGE STYLE
PN 10 PN 16 PN 25 PN 40
DN
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
B
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
B
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
B
Dimen-
sion,
mm
No. of
Stud
Bolts
Size Dia
&
Thread,
mm
B
Dimen-
sion,
mm
50 8 M16X2 80 8 M16X2 80 8 M16X2 85 8 M16X2 85
80 16 M16X2 85 16 M16X2 85 16 M16X2 90 16 M16X2 90
100 16 M16X2 85 16 M16X2 85 16 M20X2.5 100 16 M20X2.5 100
150 16 M20X2.5 100 16 M20X2.5 100 16 M24X3 110 16 M24X3 110
200 16 M20X2.5 100 24 M20X2.5 100 24 M24X3 120 24 M27X3 130
250 24 M20X2.5 110 24 M24X3 120 24 M27X3 130 24 M30X3.5 140
300 24 M20X2.5 120 24 M24X3 120 24 M27X3 140 24 M30X3.5 150
VALVE
SIZE
WAFER STYLE SINGLE FLANGE STYLE
CL150 CL300 CL150 CL300
NPS
No. of
Stud
Bolts
Size Dia
&
Thread,
Inch
A
Dimen-
sion,
Inch
No. of
Stud
Bolts
Size Dia
&
Thread,
Inch
A
Dimen-
sion,
Inch
No. of
Stud
Bolts
Size Dia
&
Thread,
Inch
B
Dimen-
sion,
Inch
No. of
Stud
Bolts
Size Dia
&
Thread,
Inch
B
Dimen-
sion,
Inch
2 4 5/8-11 5 8 5/8-11 5.25 8 5/8-11 3.50 16 5/8-11 3.75
3 4 5/8-11 5.75 8 3/4-10 6.5 8 5/8-11 4.00 16 3/4-10 4.25
4 8 5/8-11 6 8 3/4-10 7 16 5/8-11 4.00 16 3/4-10 4.50
6 8 3/4-10 6.5 12 3/4-10 7.5 16 3/4-10 4.25 24 3/4-10 4.75
8 8 3/4-10 7 12 7/8-9 9 16 3/4-10 4.50 24 7/8-9 5.50
10 12 7/8-9 8 16 1-8 10 24 7/8-9 4.75 32 1-8 6.25
12 12 7/8-9 8.5 16 1-1/8-8 11 24 7/8-9 5.00 32 1-1/8-8 7.00
Figure 2. Stud Bolts for Installation (also see table 5)
A3887/IL WAFER‐STYLE VALVE BODY
A3886/IL
SINGLE FLANGE‐STYLE VALVE BODY
5. Flow is in the standard direction when the seal
retainer (key 2) is facing upstream. Standard flow
direction is also indicated by the flow direction arrow
cast into the valve body. Flow in the reverse
direction is permissible within allowable pressure
drop limits.

8580 Valve
Instruction Manual
March 2010
6
CAUTION
8580 disk rotation is counterclockwise
to open (when viewed from the
actuator side of the valve body, see
figure 7) through 90 degrees of disk
rotation. Rotating the disk (key 3) past
either the open or closed position
could damage the seal and disk
sealing surfaces and could cause the
disk to jam in the seal retainer.
6. With the disk in the closed position, install line
flange gaskets, and insert the valve between the
pipeline flanges. Use either flat sheet gaskets or
spiral-wound gaskets with compression-controlling
centering rings. Spiral-wound gaskets without
compression-controlling centering rings are not
recommended for this purpose.
7. Depending on valve size and pressure rating, the
wafer style valve is centered in the pipeline using
either retainer clips or the flange bolt holes. (For
valves that have four flange bolt holes in the valve
body (key 1), each hole engages one corresponding
line flange stud.) Insert the valve between the
flanges and use either the retainer clips or install two
or more line flange studs into the line flanges to help
hold the valve in position while centering the valve.
Carefully center the valve on the flanges to ensure
disk clearance.
DSelect and install two pipeline gaskets.
Note
Lubricate line flange studs before
inserting them into flanges. If
necessary, provide additional support
for the control valve assembly
because of its combined weight.
8. After centering the valve body, first lubricate and
then install the remaining line flange bolting to
secure the valve in the pipeline. Tighten the nuts to
the line flange studs in a crisscross pattern to ensure
proper alignment of valve, gaskets, and flanges.
WARNING
An 8580 valve body is not necessarily
grounded when installed in a pipeline.
If the valve is used in a flammable or
hazardous atmosphere or for oxygen
service, an explosion could result due
to a discharge of static electricity from
the valve components. To avoid
personal injury or property damage,
always make sure the valve body is
grounded to the pipeline before
putting the control valve assembly into
operation in a flammable or hazardous
atmosphere.
Note
Standard packings for the 8580 valve
are composed of all conductive
packing rings (graphite ribbon
packing) or partially conductive
packing rings (such as a carbon-filled
PTFE female adaptor with PTFE V-ring
packing) to electrically bond the shaft
to the valve body for hazardous area
service. For oxygen service
applications, provide alternate
shaft-to-valve body bonding according
to the following step.
9. For oxygen service applications, attach the
bonding strap assembly (key 131, figure 3) to the
shaft with the clamp (key 130, figure 3), and connect
the other end of the bonding strap assembly to the
valve body with the cap screw (key 35). Secure each
cap screw with a hex nut (key 36).
WARNING
Personal injury could result from
packing leakage. Valve packing was
tightened prior to shipment; however,
the packing might require some
readjustment to meet specific service
conditions.
Valves with ENVIRO-SEALtpacking systems will
not require this initial re-adjustment. See
ENVIRO-SEAL Packing System for Rotary Valves
Instruction Manual (D101643X012) for packing
instructions. If you wish to convert your present
packing arrangement to ENVIRO-SEAL packing,
refer to the retrofit kits listed in the parts kit
sub-section on page 17 of this manual.
Maintenance
Valve body parts are subject to normal wear and
must be inspected regularly and replaced as
necessary. The frequency of inspection and
replacement depends upon the severity of service
conditions. Instructions are given in this section for:

8580 Valve
Instruction Manual
March 2010
7
Figure 3. Optional Shaft-to-Valve Body Bonding Strap
Assembly
replacing trim components, changing disk rotation or
valve action, and mounting and adjusting the
actuator.
As used in these instructions, actuator refers to
power actuators (such as pneumatic diaphragm,
piston actuators, and rack and pinion actuators).
WARNING
Avoid personal injury and property
damage from sudden release of
process pressure or bursting of parts.
Before performing any maintenance
operations:
DDo not remove the actuator from
the valve while the valve is still
pressurized.
DAlways wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations.
DDisconnect any operating lines
providing air pressure, electric power,
or a control signal to the actuator. Be
sure the actuator cannot suddenly
open or close the valve.
DUse bypass valves or completely
shut off the process to isolate the
valve from process pressure. Relieve
process pressure on both sides of the
valve. Drain the process media from
both sides of the valve.
DVent the power actuator loading
pressure and relieve any spring
precompression.
DUse lock-out procedures to be
sure the above measures stay in effect
while you work on the equipment.
DThe valve packing box may
contain process fluids that are
pressurized, even when the valve has
been removed from the pipeline.
Process fluids may spray out when
removing the packing hardware or
packing rings, or when loosening the
packing box pipe plug.
DCheck with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
Packing Maintenance
Refer to figure 4 for available packing configurations.
All maintenance operations in this section may be
performed with the valve in the line. Packing may be
PTFE V-ring or graphite.
An ENVIRO-SEAL packing system is also available
with the 8580 valve. To install the ENVIRO-SEAL
packing system in an existing valve, follow the
instructions in the instruction manual included with
the packing system (D101643X012). To remove
packing parts in a valve with the ENVIRO-SEAL
packing system, follow the procedures for valves
with the ENVIRO-SEAL packing system in this
section. Install the replacement packing following the
instructions in the packing system instruction manual
(D101643X012).
Stopping Leakage
For valves with PTFE or graphite packing:
CAUTION
Tighten the packing flange only
enough to prevent shaft leakage.
Excessive tightening will only
accelerate wear of the packing and
could produce higher torques on the
valve.
Leakage around the packing followers can be
stopped by tightening the packing flange nuts
(key 28, figure 10).

8580 Valve
Instruction Manual
March 2010
8
STANDARD PACKING
ENVIRO‐SEAL PACKING
SINGLE PTFE PACKING
GRAPHITE PACKING
PTFE V‐RING GRAPHITE RIBBON
THESE TWO SURFACES SHOULD REMAIN PARALLEL AS YOU
ALTERNATELY AND EVENLY TIGHTEN THE PACKING NUTS (KEY 28).
NOTES:
WITH CONDUCTIVE PACKING, THE FEMALE ADAPTOR IN PTFE
V-RING PACKING IS CARBON-FILLED PTFE.
APPLY LUBRICANT.
1
2
3
Figure 4. Packing Arrangement Details
GE39901-A GE39986-A
GE40113-A
GE40118-A

8580 Valve
Instruction Manual
March 2010
9
If the packing is relatively new and tight on the shaft,
and if tightening the packing flange nuts does not
stop leakage, the shaft may be worn or nicked so
that a seal cannot be made. If the leakage comes
from the outside diameter of the packing, the
leakage may be caused by nicks or scratches
around the packing box wall. Inspect the shaft and
packing box wall for nicks and scratches when
performing the packing replacement procedures.
For valves with the ENVIRO-SEAL packing
system:
Optimum performance of the ENVIRO-SEAL
packing system is obtained when the Belleville
springs are tightened to their “target load.” The
target load is the point where the springs are
compressed to 85% of their maximum deflection, or
nearly flat. Maximum deflection is when the springs
are 100% compressed, or completely flat.
Under normal conditions, the packing nuts should
not require re-tightening. However, when servicing, if
the springs do not remain at the target load of 85%
compression, retighten the packing box nuts
according to the following procedure:
1. Tighten the packing flange nuts alternately and
evenly, keeping the packing flange parallel with the
valve flange (see figure 4), until the Belleville springs
are compressed 100% (or completely flat).
DFor PTFE packing, loosen each packing
flange nut one half turn (180_of rotation).
DFor Graphite packing, loosen each packing
flange nut one quarter turn (90_of rotation).
The target load of 85% compression has now been
reached. If leakage continues, replace the packing
components as described in the following
procedures.
Replacing the Packing
To replace the packing, the actuator must be
removed. Also, the valve should be removed from
the pipeline to allow proper readjustment of the disk
position.
WARNING
The edges of a rotating disk have a
shearing effect that may result in
personal injury. To help prevent such
injury, stay clear of the disk edges
when rotating the disk (key 3).
CAUTION
Damage to the disk (key 3) may occur
if the disk is not closed when the valve
is being removed from the pipeline. If
necessary, apply operating pressure to
the actuator temporarily to retain the
disk in the closed position while
removing the valve from the pipeline.
For valves with PTFE or graphite packing:
Key numbers in this procedure are shown in figure
10 unless otherwise indicated.
1. Isolate the control valve from the line pressure,
release pressure from both sides of the valve body,
and drain the process media from both sides of the
valve. If using a power actuator, also shutoff all
pressure lines to the power actuator, release all
pressure from the actuator. Use lock-out procedures
to be sure the above measures stay in effect while
you work on the equipment.
CAUTION
When removing the actuator in the
following step, use a wheel puller to
separate the actuator parts from the
valve shaft. Do not drive the actuator
parts off the valve shaft because this
could damage valve trim components.
2. Remove the actuator per instructions in separate
actuator instruction manuals, then remove the cap
screws and nuts (keys 35 and 36). Remove the
clamp (key 130, figure 3) if the strap (key 131,
figure 3) is used.
3. Remove the packing flange nuts and the packing
flange (key 26) if used and pull out the packing
follower (key 25).
4. Remove the anti-blowout ring (key 40) from the
drive shaft (key 10).
5. Remove the old packing rings (key 24) and, if
used, the packing washers (key 31). Carefully avoid
scratching the shaft or packing box wall to avoid
damage that could cause leakage around the shaft.
Clean all accessible metal parts and surfaces to
remove particles that would prevent the packing
from sealing.

8580 Valve
Instruction Manual
March 2010
10
WARNING
Do not lubricate parts when used in
oxygen service, or where the
lubrication is incompatible with the
process media. Any use of lubricant
can lead to the sudden explosion of
media due to the oil/oxygen mixture,
causing personal injury or property
damage.
6. Use the appropriate procedures below for
installing packing.
DInstall the packing as shown in figure 4.
DWith graphite ribbon packing, stack the
packing rings and packing washers together,
and slide the stack into the packing box as far
as it will go while carefully avoiding trapping air
between the rings.
DInstall the anti-blowout ring (key 40) in the
groove on the drive shaft (key 10).
DInstall the packing follower and, if used, the
packing flange.
DInstall the packing flange nuts, and tighten
them only far enough to stop leakage under normal
operating conditions.
DFor oxygen service applications, attach the
bonding strap assembly (key 131, figure 3) to the
shaft with the clamp (key 130, figure 3), and connect
the other end of the bonding strap assembly to the
valve body with a cap screw (key 35). Secure each
cap screw with a hex nut (key 36).
7. Mount the actuator and adjust the closed position
of the valve, per the Actuator Mounting section on
page 15 of this manual, before returning the valve to
service.
8. When placing the control valve into operation,
check around the packing follower for leakage;
retighten the packing flange nuts as required
according to accepted bolting procedures.
For valves with ENVIRO-SEAL packing systems:
1. Isolate the control valve from the line pressure,
release pressure from both sides of the valve body,
and drain the process media from both sides of the
valve. If using a power actuator, also shutoff all
pressure lines to the power actuator, release all
pressure from the actuator. Use lock-out procedures
to be sure that the above measures stay in effect
while you work on the equipment.
CAUTION
When removing the actuator, use a
wheel puller to separate the actuator
parts from the valve shaft. Do not drive
the actuator parts off the valve shaft
because this could damage valve trim
components.
2. Remove the actuator per instructions in separate
actuator instruction manuals, then remove the cap
screws and nuts (keys 35 and 36). Remove the
clamp (key 130, figure 3) if the strap (key 131,
figure 3) is used.
3. Loosen the two packing hex nuts evenly to
remove spring tension, then remove the nuts.
4. Remove the packing flange and spring pack
assembly. The spring pack assembly consists of the
spring stack and packing follower. The spring stack
is retained on the packing follower by an O-ring.
Remove the anti-blowout ring (key 40) from the
driveshaft (key 10). Remove the anti-extrusion
washer, the packing set, and the packing ring.
CAUTION
The valve shaft surface condition is
critical in making and maintaining a
good seal. If the valve shaft surface is
scratched, nicked, dented, or worn,
replace the valve shaft before
replacing the packing system.
5. Inspect the existing valve shaft. If necessary,
replace the valve shaft as described in the Replacing
the Disk, Shafts, or Bearings section.
6. Install the new packing system components as
described in the ENVIRO-SEAL Packing System for
Rotary Valves Instruction Manual (D101643X012).
7. Install the anti-blowout ring (key 40) onto the
drive shaft (key 10) before installing the packing
follower.
8. Mount the actuator and adjust the closed position
of the valve, per the Actuator Mounting section on

8580 Valve
Instruction Manual
March 2010
11
page 15 of this manual, before returning the valve to
service.
Replacing the Seal Ring Assembly
Perform this procedure only if the control valve is not
shutting off properly (that is, leaking downstream).
This procedure does not require removing the
actuator from the valve body.
Key numbers in this procedure are shown in
figure 10 unless otherwise indicated.
1. Isolate the control valve from line pressure, and
relieve pressure from the valve body. Shut off and
disconnect all lines from the power actuator.
WARNING
The edges of a rotating disk have a
shearing effect that may result in
personal injury. To help prevent such
injury, stay clear of the disk edges
when rotating the disk (key 3).
CAUTION
Damage to the disk (key 3) may occur
if the disk is not closed when the valve
is being removed from the pipeline. If
necessary, apply operating pressure to
the actuator temporarily to retain the
disk in the closed position while
removing the valve from the pipeline.
2. Unscrew the flange bolts, and remove the valve
from the pipeline.
3. Unscrew the machine screws (key 14), remove
the retainer clip (key 13), and remove the seal
retainer (key 2).
4. Remove the seal ring assembly (key 4).
5. The valve must be closed during seal ring
installation to permit accurate centering of the seal.
To install the new seal ring assembly:
DFor a soft seal, if the spring (key 5) was
disassembled, hook the spring ends together. Work
the spring into the recess in the seal ring (key 4).
Place the seal ring assembly onto the disk. Set the
retainer onto the seal, making sure proper alignment
between the seal and retainer has been achieved.
DFor the metal seal ring assembly, place the
seal ring assembly onto the disk. Set the retainer
onto the seal, making sure proper alignment
between the seal and retainer has been achieved.
6. Attach the seal retainer (key 2) and the retainer
clips (key 13) to the valve body and secure with the
machine screws (key 14).
7. Be certain the disk is closed before installing the
valve according to the Installation section on
page 4 of this manual.
Replacing the Disk, Shafts, or Bearings
Key numbers in this procedure are shown in figure
10 unless otherwise indicated.

8580 Valve
Instruction Manual
March 2010
12
Figure 5. Orientation of Bearing Tabs
BEARING TAB
BEARING TAB
BACKSIDE OF VALVE
Table 6. Follower Shaft Internal Threads
VALVE SIZE THREAD SIZE
DN NPS
50 2 M8 X 1.25
80 3 M10 X 1.50
100 4 M12 X 1.75
180 6 M16 X 2.00
200 8 M20 X 2.50
250 10 M20 X 2.50
300 12 M24 X 3.00
1. Isolate the control valve from the line pressure,
release pressure from both sides of the valve body,
and drain the process media from both sides of the
valve. If using a power actuator, also shutoff all
pressure lines to the power actuator, release all
pressure from the actuator. Use lock-out procedures
to be sure that the above measures stay in effect
while you work on the equipment.
CAUTION
When removing the actuator in the
following step, use a wheel puller to
separate the actuator parts from the
valve shaft. Do not drive the actuator
parts off the valve shaft because this
could damage valve trim components.
2. Remove the actuator per instructions in separate
actuator instruction manuals, then remove the cap
screws and nuts (keys 35 and 36). Remove the
clamp (key 130, figure 3) if the strap (key 131,
figure 3) is used.
3. Remove the packing flange nuts and the packing
flange (key 26) if used and pull out the packing
follower (key 25).

8580 Valve
Instruction Manual
March 2010
13
Table 7. Recommended Blind Flange Bolt Torque
VALVE SIZE TORQUE
DN NPS NSm lbfSft
50 to 150 2 to 6 9.5 7.0
200, 250 8, 10 23 17
300 12 45 33
Disassembly
1. Remove the seal ring assembly according to
steps 3 and 4 of the Replacing Seal Ring section on
page 11 of this manual.
2. Remove hex nuts, blind flange, gasket, spacer (if
present), follower spring seats, and follower spring
(keys 19, 17, 16, 15, 9, and 12).
3. Clean the gasket surfaces on the blind flange
(key 17) and on the end of the valve body (key 1).
4. Rotate the disk (key 3) to the fully open position.
5. Refer to figure 6 and determine the location of the
smaller end of the taper pins (key 8). Drive out the
taper pins and expansion pins (key 7) towards the
larger end.
WARNING
Once the shafts have been removed in
the following step, the disk may fall
from the valve body. To avoid personal
injury and disk damage, support the
disk to prevent it from falling as the
shafts are being removed.
6. Pull the follower shaft (key 11) out through the
outboard end of the valve body. If the follower shaft
cannot be pulled free, the end of the follower shaft is
internally threaded (see table 6) for screwing in a
bolt or stud to aid in pulling the follower shaft.
7. Pull the drive shaft (key 10) out through the
actuator end of the valve body and remove the
anti-blowout fing (key 40) from the drive shaft.
8. Remove the disk (key 3) from the valve body.
9. Remove the packing (key 24, figure 4) and the
packing box ring (key 23, figure 4).
10. If either of the bearings (key 6) require
replacement, remove them.
11. Clean the packing box and [metal packing box
parts].
Assembly
WARNING
Do not lubricate bearings that will be
used for oxygen service, or where the
lubrication is incompatible with the
process media. Any use of lubricant
can lead to the sudden explosion of
media due to the oil/oxygen mixture,
causing personal injury or property
damage.
CAUTION
To avoid possible product damage,
ensure the bearing tabs are oriented
correctly when installing in the
following procedure. See figure 5 for
proper orientation of the bearings.
1. If new bearings (key 6) are required, install and
orient them in the valve body, as shown in figure 5.
Ensure the bearings are fully seated, contacting the
inside diameter of the valve body.
2. Insert the disk into the valve body as shown in
figure 6, ensuring the “T” stamped on the disk hub is
oriented toward the actuator end of the valve body.
3. Install the drive shaft (key 10) through the valve
body into the disk.
The disk/shaft connection utilizes taper and
expansion pins. The hole for the drive shaft
connection is slightly off-center to prevent the drive
shaft from being installed in the wrong orientation.
Orient the position indication mark on the end of the
shaft with the face of the disk as shown in figure 7.
The hole for the follower shaft connection is
on-center. Insert the expansion pins into the disk
until they are seated, as shown in figure 6. Once in
place, insert the taper pins. The taper pins must be
driven into the disk/shaft/expansion pin assemblies
until “solid contact” is felt. “Solid contact” can be
identified by the sound of the hammer blow and the
bounce felt in the hammer.
4. Reinstall the follower spring/spring seat assembly
(keys 9, 12, and 9, figure 8) inside the follower shaft.
5. Install the spacer (key 15) if used, and the
gasket, blind flange, and hex nuts (keys 16, 17,
and 19). Ensure the blind flange is oriented so the
serrations face the gasket and valve body. Tighten
the hex nuts (key 19) per table 7.
6. The valve must be closed during seal ring
installation to permit accurate centering of the seal.
To install the new seal ring assembly or flow ring:

8580 Valve
Instruction Manual
March 2010
14
Figure 6. Taper / Expansion Pin Installation
TAPER/EXPANSION PIN LOCATION
INSTALL THE PINS FROM THIS SIDE OF THE DISK.
1
“T” STAMPED ON ACTUATOR
END OF DISK
W9486
1
Table 8. Recommended Actuator-Mounting Bolt Torque
VALVE SIZE TORQUE
DN NPS NSm lbfSft.
50, 80, 100,
and 150 2, 3, 4, and 6 120 88
200, 250, and
300 8, 10, and 12 250 185
DFor a soft seal, if the spring (key 5) was
disassembled, hook the spring ends together. Work
the spring into the recess in the seal ring (key 4).
Place the seal ring assembly onto the disk. Set the
retainer onto the seal, making sure proper alignment
between the seal and retainer has been achieved.
DFor the metal seal ring assembly, place the
seal ring assembly onto the disk. Set the retainer
onto the seal.
DFor the flow ring construction, place the
gasket (key 41) onto the valve body. Set the retainer
onto the gasket.
7. Attach the seal retainer (key 2) and the retainer
clips (key 13) to the valve body and secure with the
machine screws (key 14).
8. Insert a packing box ring (key 23) into the
packing box.
9. For standard packing, install the packing
according to the appropriate instructions presented
in step 5 of the Replacing Packing section on
page 10 of this manual.
For ENVIRO-SEAL packing, install the new packing
system components as described in the
ENVIRO-SEAL Packing System for Rotary Valves
Instruction Manual (D101643X012).
10. Install the anti-blowout ring (key 40) in the
groove in the drive shaft.
11. Rotate the disk to the approximate closed
position.
12. Mount and adjust the actuator per the following
Actuator Mounting section on page 15 of this
manual.

8580 Valve
Instruction Manual
March 2010
15
ACTUATOR
END OF SHAFT
Figure 7. Sectional of Typical Valve Body
POSITION
INDICATION MARK
INDICATES
APPROXIMATE
DISK POSITION
CCW DISK
ROTATION
TO OPEN
X2
X1
Figure 8. Follower Spring/Spring Seat Assembly
FOLLOWER
SPRING SEAT
(KEY 9)
FOLLOWER SPRING
(KEY 12)
FOLLOWER
SPRING SEAT
(KEY 9)
Actuator Mounting
With the valve body out of the line, mount the
actuator on the valve body in accordance with the
instructions in the actuator instruction manual. Mount
the actuator yoke to the valve body, and tighten the
actuator-mounting cap screws and nuts (keys 35
and 36) to the appropriate torque from table 8.
Key numbers in this procedure are shown in figure
10 unless otherwise indicated.
1. Determine the actuator mounting style and
position from figure 9.
CAUTION
8580 valve disk rotation is
counterclockwise to open (when
viewed from the actuator side of the
valve body, see figure 7). Rotating the
disk (key 3) past the fully closed
position will damage the seal ring
(key 4). To prevent this damage, use
the following procedures:
DFor actuators with adjustable
travel stops, such as a Type 2052,
1051/1052 size 33, 1066 or 1066SR
actuator, make certain the actuator
travel stop prevents the disk from
rotating past the fully closed position.
DFor actuators with an adjustable
turnbuckle, such as the Type
1051/1052 size 40, 60, and 70, or 1061
actuator, the turnbuckle must be
adjusted so that the valve is closed
when the diaphragm plate or piston is
against the actuator travel stop.
2. Adjust the actuator to bring the disk to the fully
closed position at the end of the actuator stroke. To
determine the fully closed disk position, measure the
distances between the disk face and the seal
retainer face at the top and bottom of the valve (X1
and X2) as shown in figure 7. Adjust the travel stops
or turnbuckle to rotate the disk slightly until the two
measurements are within 0.8 mm (0.032 inch) of
each other. Refer to the appropriate actuator
instruction manual for assistance.

8580 Valve
Instruction Manual
March 2010
16
ACTUATOR
MOUNTING STYLE VALVE CLOSED MOUNTING
POSITION 1
NOTES:
WHEN ONE IS FACING THE INLET, THE ACTUATOR IS TO THE RIGHT OF THE VALVE BODY.
WHEN ONE IS FACING THE INLET, THE ACTUATOR IS TO THE LEFT OF THE VALVE BODY.
FOR 60-DEGREE OPERATION WITH PUSH-DOWN-TO-CLOSE ACTION (EXTENDING ACTUATOR ROD CLOSES VALVE), ROTATE ACTUATOR LEVER COUN-
TERCLOCKWISE SO THAT LEVER INDEX MARK IS OFFSET 1 SPLINE TOOTH FROM VALVE SHAFT INDEX MARK FOR NPS 2 THROUGH 4 VALVES AND 2 SPLINE
TEETH FROM VALVE SHAFT INDEX MARK FOR NPS 6 THROUGH 12 VALVES.
CURVED ARROWS IN ”VALVE CLOSED’ COLUMN INDICATE ROTATION REQUIRED TO OPEN VALVE (COUNTERCLOCKWISE WHEN VIEWED FROM ACTUATOR
SIDE OF VALVE).
ARROWS IN ”MOUNTING POSITION’’ COLUMNS INDICATE DIRECTION OF ACTUATOR ROD TRAVEL REQUIRED TO OPEN VALVE.
6. PDTC—PUSH DOWN TO CLOSE; PDTO—PUSH DOWN TO OPEN.
RIGHT-
HAND
STYLE A
(PDTO)
STYLE B
(PDTC)
STYLE C
(PDTC)
STYLE D
(PDTO)
LEFT-
HAND
FORWARD
FLOW
43A5323-B
B1125-1/IL
1
2
3
45MOUNTING
POSITION 2 5MOUNTING POSITION 3 5MOUNTING POSITION 4 5
1
3
2
3
4
5
FORWARD
FLOW
FORWARD
FLOW
FORWARD
FLOW
Figure 9. Lever/Shaft/Disk Orientation with Valve Closed
ACTUATOR ROD
ACTUATOR ROD
END BEARING
ACTUATOR LEVER
LEVER INDEX
MARKS (4)
VALVE SHAFT
INDEX MARK
TYPICAL ACTUATOR (TYPE 1052) SECTIONAL THROUGH HOUSING
A3344/IL

8580 Valve
Instruction Manual
March 2010
17
Parts Ordering
When corresponding with your Emerson Process
Management sales office about this equipment,
always mention the valve serial number. When
ordering replacement parts, also specify the key
number, part name, desired material, using the Parts
List table.
WARNING
Use only genuine Fisher replacement
parts. Components that are not
supplied by Emerson Process
Management should not, under any
circumstances, be used in any Fisher
valve, because they may void your
warranty, might adversely affect the
performance of the valve, and could
cause personal injury and property
damage.
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use, or maintenance of any
product. Responsibility for the
selection, use, and maintenance of any
product remains with the purchaser
and end user.
Parts Kits
Retrofit Kits for ENVIRO-SEAL Packing
Retrofit kits are available for replacing the packing in
an existing valve with an ENVIRO-SEAL packing
system. These kits are available for single PTFE or
graphite packing. All parts required for installation of
the ENVIRO-SEAL packing system into an existing
8580 valve are included in the kits.
Worn shafts, packing box damage, or other
components that do not meet Emerson Process
Management finish specifications, dimensional
tolerances, and design specifications, may adversely
alter the performance of the retrofit kit.
ENVIRO-SEAL Packing System Retrofit Kits
SHAFT DIAMETER SINGLE PTFE PACKING GRAPHITE PACKING
mm Inches
12.7
15.9
19.1
1/2
5/8
3/4
RPACKXRT482
RPACKXRT492
RPACKXRT502
RPACKXRT422
RPACKXRT432
RPACKXRT442
25.4
31.8
38.1
1
1-1/4
1-1/2
RPACKXRT512
RPACKXRT522
RPACKXRT532
RPACKXRT452
RPACKXRT462
RPACKXRT472
Repair Kits for ENVIRO-SEAL Packing
Repair kits for ENVIRO-SEAL PTFE packing include
one packing set and two anti-extrusion washers.
Repair kits for ENVIRO-SEAL graphite packing
include two packing rings and two anti-extrusion
rings.
Worn shafts, packing box damage, or other
components that do not meet Emerson Process
Management finish specifications, dimensional
tolerances, and design specifications, may adversely
alter the performance of the repair kit.
ENVIRO-SEAL Packing System Repair Kits
SHAFT DIAMETER FOR PTFE PACKING FOR GRAPHITE PACKING
mm Inches
12.7
15.9
19.1
1/2
5/8
3/4
RRTYX000012
RRTYX000022
RRTYX000032
13B8816X012
13B8816X032
13B8816X052
25.4
31.8
38.1
1
1-1/4
1-1/2
RRTYX000052
RRTYX000062
RRTYX000072
13B8816X092
13B8816X112
13B8816X142

8580 Valve
Instruction Manual
March 2010
18
Parts List
Note
For part numbers not shown, contact your Emerson
Process Management sales office.
Key Description Part Number
1 Valve Body
If you need a new valve body, please order by valve
size, serial number and desired material.
2 Seal Retainer / Flow Ring
3 Disk
4* Seal Ring
PTFE
DN 50 (NPS 2) 75B0387X012
DN 80 (NPS 3) GE25147X012
DN 100 (NPS 4) GE25148X012
DN 150 (NPS 6) GE25149X012
DN 200 (NPS 8) GE25954X012
DN 250 (NPS 10) GE25955X012
DN 300 (NPS 12) 22A8920X012
5* Spring
S31600
DN 50 (NPS 2) 12A9022X012
DN 80 (NPS 3) 12A8902X012
DN 100 (NPS 4) 12A8991X012
DN 150 (NPS 6) 12A8818X012
DN 200 (NPS 8) 12A8974X012
DN 250 (NPS 10) 12A8948X012
DN 300 (NPS 12) 12A8922X012
R30003
DN 50 (NPS 2) 12A9022X062
DN 80 (NPS 3) 12A8902X102
DN 100 (NPS 4) 12A8991X092
DN 150 (NPS 6) 12A8818X102
DN 200 (NPS 8) 12A8974X102
DN 250 (NPS 10) 12A8948X062
DN 300 (NPS 12) 12A8922X072
6* Bearing
PEEK/PTFE
DN 50 (NPS 2) GE27048X012
DN 80 (NPS 3) GE21169X012
DN 100 (NPS 4) GE23766X012
DN 150 (NPS 6) GE21968X012
DN 200 and 250 (NPS 8 and 10) GE28175X012
DN 300 (NPS 12) GE18589X012
R30006
DN 50 (NPS 2) GE29604X012
DN 80 (NPS 3) GE27388X012
DN 100 (NPS 4) GE28190X012
DN 150 (NPS 6) GE25554X012
DN 200 (NPS 8) GE30088X012
DN 250 (NPS 10) GE38566X012
DN 300 (NPS 12) GE27656X012
7* Expansion Pin
S17400
DN 50 (NPS 2) GE27079X022
DN 80 (NPS 3) GE21165X042
DN 100 (NPS 4) GE23792X042
DN 150 (NPS 6) GE16687X042
DN 200 and 250 (NPS 8 and 10) GE28145X042
DN 300 (NPS 12) GE20539X022
Key Description Part Number
7* Expansion Pin (continued)
S20910
DN 50 (NPS 2) GE27079X012
DN 80 (NPS 3) GE21165X012
DN 100 (NPS 4) GE23792X012
DN 150 (NPS 6) GE16687X012
DN 200 and 250 (NPS 8 and 10) GE28145X012
DN 300 (NPS 12) GE20539X012
8* Taper Pin (2 req’d)
S17400
DN 50 (NPS 2) 16A5511X122
DN 80 (NPS 3) GE30454X042
DN 100 (NPS 4) G1129935362
DN 150 (NPS 6) 12A8817X012
DN 200 and 250 (NPS 8 and 10) 12A8949X012
DN 300 (NPS 12) F13677K0012
S20910
DN 50 (NPS 2) 16A5511X012
DN 80 (NPS 3) GE30454X012
DN 100 (NPS 4) G11299X0032
DN 150 (NPS 6) 12A8817X022
DN 200 and 250 (NPS 8 and 10) 12A8949X082
DN 300 (NPS 12) F1367734752
9 Follower Spring Seats
10 Drive Shaft
11 Follower Shaft
12 Follower Spring
13 Retainer Clip
14 Machine Screw, Flat Head, Hex Socket
15 Spacer
16* Gasket
Graphite Laminate
DN 50 (NPS 2) GE26653X012
DN 80 and 100 (NPS 3 and 4) GE21172X012
DN 150 (NPS 6) GE21969X012
DN 200 and 250 (NPS 8 and 10) GE28063X012
DN 300 (NPS 12) GE18562X012
17 Blind Flange
18 Stud
19 Hex Nut
20 Drive Screw
21 Nameplate
22 Mfg Label
23* Packing Box Ring
S31600
DN 50 (NPS 2) 16A6082X012
DN 80 (NPS 3) 16A6083X012
DN 100 (NPS 4) 16A6084X012
DN 150 (NPS 6) 16A6085X012
DN 200 and 250 (NPS 8 and 10) 16A6086X012
DN 300 (NPS 12) 16A6087X012
24* Packing Set
PTFE and carbon-filled PTFE V-ring
DN 50 (NPS 2) 12A9016X022
DN 80 (NPS 3) 1R5795X0012
DN 100 (NPS 4) 12A8995X022
DN 150 (NPS 6) 12A8832X022
DN 200 and 250 (NPS 8 and 10) 12A8951X022
DN 300 (NPS 12) 12A8935X022
*Recommended spare parts

8580 Valve
Instruction Manual
March 2010
19
Figure 10. Fisher 8580 Valve Assembly
GE36048_D
Key Description Part Number
24* Packing Ring (4 req’d)
Graphite ribbon
DN 50 (NPS 2) 12A9134X012
DN 80 (NPS 3) 12A9135X012
DN 100 (NPS 4) 12A9136X012
DN 150 (NPS 6) 12A9137X012
DN 200 and 250 (NPS 8 and 10) 12A9138X012
DN 300 (NPS 12) 12A9139X012
24* Packing Set, ENVIRO-SEAL
PTFE and carbon-filled PTFE V-ring
DN 50 (NPS 2) 12A7053X012
DN 80 (NPS 3) 12B7402X012
DN 100 (NPS 4) 12B7414X012
DN 150 (NPS 6) 12B7438X012
DN 200 and 250 (NPS 8 and 10) 12B7450X012
DN 300 (NPS 12) 12B7462X012
Key Description Part Number
24* Packing Set, ENVIRO-SEAL
Graphite
DN 50 (NPS 2) 13B8816X012
DN 80 (NPS 3) 13B8816X032
DN 100 (NPS 4) 13B8816X052
DN 150 (NPS 6) 13B8816X092
DN 200 and 250 (NPS 8 and 10) 13B8816X112
DN 300 (NPS 12) 13B8816X142
25 Packing Follower
26 Packing Flange
27 Packing Stud
28 Packing Nut
29* Anti-extrusion Ring, ENVIRO-SEAL, use w/ PTFE packing
PEEK (2 req’d)
DN 50 (NPS 2) 12B7054X012
DN 80 (NPS 3) 12B7406X012
DN 100 (NPS 4) 12B7418X012
DN 150 (NPS 6) 12B7442X012
DN 200 and 250 (NPS 8 and 10) 12B7454X012
DN 300 (NPS 12) 12B7466X012
*Recommended spare parts

8580 Valve
Instruction Manual
March 2010
20
Figure 11. Fisher 8580 Seal Assembly Detail
GE36048_D_2
FLOW RING CONSTRUCTION
ASSEMBLY
SOFT SEAL CONSTRUCTION
ASSEMBLY
METAL SEAL CONSTRUCTION
ASSEMBLY
Key Description Part Number
30 Spring Pack Assy
31* Packing Washer
Zinc
DN 50 (NPS 2) 14A8362X012
DN 80 (NPS 3) 14A9771X012
DN 100 (NPS 4) 14A8363X012
DN 150 (NPS 6) 14A8365X012
DN 200 and 250 (NPS 8 and 10) 14A8366X012
DN 300 (NPS 12) 14A8367X012
32 Tag
33 Cable Tie
34 Mounting Bracket
35 Cap Screw
36 Hex Nut
Key Description Part Number
37 Lubricant
39 Machine Screw, Flat Head, Hex Socket
40 Anti-blowout Ring
41* Gasket, Flow Ring
Graphite Laminate
DN 50 (NPS 2) GE47315X012
DN 80 (NPS 3) GE47314X012
DN 100 (NPS 4) 17A7555X012
DN 150 (NPS 6) 17A7561X012
DN 200 (NPS 8) 17A7567X012
DN 250 (NPS 10) 18A1128X012
DN 300 (NPS 12) 18A1138X012
130 Clamp
131 Bonding Strap Assy
*Recommended spare parts
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
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