Emerson FISHER RSS Series User manual

www.Fisher.com
D101299X012
Design RSS Lined Valve
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . .
Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Maintenance 5. . . . . . . . . . . . . . . . . . . . . .
Replacing Packing and Bushing Inserts 5. . . . . .
Trim Maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual includes installation,
maintenance, and parts information for 0.5 through
4-inch Design RSS lined globe valves. Refer to
separate manuals for instructions covering the
actuator, positioner, and accessories.
Description
The Design RSS lined globe-style valve (figure 1)
has pure-modified PTFE trim parts, push-down-to-
close action, and positive shutoff. This valve is
intended for applications involving severely corrosive
and toxic flowing media, and is well-suited for pure
media applications, as well. The Design RSS valve
body provides an economical alternative to alloy
valve bodies in a wide variety of applications.
No person may install, operate, or maintain a Design
RSS valve without first Dbeing fully trained and
qualified in valve, actuator and accessory
installation, operation and maintenance, and
Dcarefully reading and understanding the contents
of this manual. If you have any questions concerning
these instructions, contact your Fisher sales office
before proceeding.
Figure 1. Design RSS Valve with Type 667 Actuator
and Type 3582 Positioner
W4453–1 / IL
Specifications
Specifications for the Design RSS valve are shown
in table 1. If the valve is shipped with the actuator,
some of the valve specifications are on the valve
nameplate, which is attached to the actuator. If the
valve is shipped without the actuator, the valve
nameplate is wired to the valve.
Note
Neither Emerson, Emerson Process
Management, nor Fisher assume
responsibility for the selection, use, or
maintenance of any product.
Responsibility for proper selection,
use, and maintenance of any Fisher
product remains solely with the
purchaser and end-user.
Instruction Manual
Form 5592
March 2005 RSS Valve

RSS Valve
Instruction Manual
Form 5592
March 2005
2
Table 1. Specifications
Valve Sizes
J0.5, J0.75, J1, J1.5, J2, J3, and J4
inches
Face-To-Face and Flange Compatibility
DUCTILE IRON
VALVE SIZE
Raised-Face Flange
VALVE SIZE,
INCH
Class 150 Class 300
INCH
Face-To-Face
ANSI(1) DIN(2) ANSI(1) DIN(2)
0.5
0.75
1
1.5
2
3
4
- - -
- - -
X
X
X
X
X
X
X
X
X
X
X
X
- - -
- - -
X
X
X
- - -
- - -
- - -
- - -
X
- - -
- - -
- - -
- - -
1. For ANSI/ISA face-to-face dimensions, see figure 9.
2. For DIN face-to-face dimensions, see figure 9.
Maximum Inlet Pressures and Temperatures(1)
See table 2
Downstream/Outlet Pressure Ratings(1)
See figures 3 and 4
Application Limits
Liquid Service: For cavitating applications,
contact your Fisher sales office.
Gas Service: Velocity 0.33 MACH
Shutoff Classification
Class VI per ANSI/FCI 70-2 and IEC 60534-4
Temperature Capabilities
Positive Pressure Service: –29 to 177_C (–20 to
350_F)
Vacuum Service: –29 to 177_C (–20 to 350_F)
Standard Flow Characteristic/Valve Plug Style
Equal percentage
Flow Direction
Up through the seat ring (see figure 7)
Packing Arrangement
Braided PTFE rings
Dimensions and Weights
See figure 9
1. The pressure or temperature limits in this manual, and any applicable standard limitations should not be exceeded.
Table 2. Maximum Allowable Inlet Pressures and Temperatures(1)
TEMPERATURE, PRESSURE, BAR TEMPERATURE, PRESSURE, PSIG
TEMPERATURE
,
_CDuctile Iron
TEMPERATURE
,
_FDuctile Iron
–29 to 38
93
149
177
19.7
17.9
15.9
14.8
–20 to 100
200
300
350
285
260
230
215
1. Includes valves with Class 300 flanges.
Installation
WARNING
Always wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations to avoid personal injury.
Personal injury or equipment damage
caused by sudden release of pressure
can result if the valve is installed
where service conditions could exceed
the limits given on the nameplate or in
table 1 or 2, or figure 3 or 4. To avoid
such injury or damage, use
pressure-limiting or pressure-relieving
devices to prevent service conditions
from exceeding these limits.
Check with your process or safety
engineer for any other hazards that
may be present from exposure to
process media.
If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section in this instruction manual.

RSS Valve
Instruction Manual
Form 5592
March 2005
3
CAUTION
When ordered, the valve configuration
and construction materials are selected
to meet particular pressure,
temperature, pressure drop, and
controlled fluid conditions. Since some
valve body/trim material combinations
are limited in their pressure drop and
temperature ranges, do not apply any
other conditions to the valve without
first contacting your Fisher sales office.
CAUTION
Before installing the valve, inspect it to
be certain that the valve cavity is free
of foreign material. Use extra care in
handling to avoid damage to the
exposed lining on the flanges. Clean
out all pipelines to remove scale,
welding slag, and any other foreign
materials that could cause erosion of
the valve body lining.
Use accepted piping practices when
installing the valve in the pipeline. For
a 0.5 inch valve only, use the line
flange cap screws (key 18, not shown)
provided rather than using through
bolting. To minimize valve damage
caused by expansion of PTFE lined
pipe, use a line flange gasket (figure
2). This gasket evenly distributes the
piping loads across the valve flange
face and minimizes the potential for
cutting or indenting the lined face on
the valve flange.
1. The control valve assembly should be installed in
a horizontal pipeline with the valve stem in a vertical
position. Before installing in any other orientation,
consult your Fisher sales office.
Flow through the valve must be in the direction
indicated by the arrow cast on the valve (figure 7).
2. With a leak-off bonnet construction, remove the
pipe plug (key 20, not shown) and install the leak-off
piping into the tapping in the bonnet (key 2, figure
10).
3. If continuous operation is required during
inspection or maintenance, install a three-way
bypass around the control valve assembly.
Figure 2. Typical Line Flange Gasket (Key 17)
PTFE
COMPOSITION
STAINLESS STEEL
SECTION A-A
10B3224–C
A5039 / IL
4. For a valve used with a fail-closed actuator,
remove the shim (key 24, not shown) from between
the bonnet and the travel stop. Discard the shim.
5. If the actuator and valve are shipped separately,
refer to the appropriate actuator instruction manual
for the actuator mounting procedure.
Maintenance
Valve parts are subject to normal wear and must be
inspected and replaced as necessary. Inspection
and maintenance frequency depends on the severity
of service conditions. This section includes
instructions for packing and trim replacement. All
these maintenance operations may be performed
with the valve in the line.
WARNING
Avoid personal injury or property
damage from sudden release of
process pressure or bursting of parts.
Before performing any maintenance
operations:
DAlways wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations to avoid personal injury.

RSS Valve
Instruction Manual
Form 5592
March 2005
4
HEAVY-DUTY BELLOWS WITH METAL SUPPORT RINGS
NOTE: THE LINER DOES NOT LIMIT THE DOWNSTREAM PRESSURE RATING IN POSITIVE PRESSURE SERVICES.
E0981 68 122 212 302 356_F
180_C
1501005020
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
gauge pressure (bar)
1
0
232
203
188
174
159
145
130
116
101
87
72.5
58
43.5
gauge pressure (psi)
14.5
0
217
29
–29
–20
STANDARD PTFE BELLOWS
Figure 3. Downstream/Outlet Pressure Ratings (Positive Pressure Service)
E0980
68 122 212 302 356_F
THE PFA LINER CANNOT
BE USED IN THIS AREA
vacuum (bar)
180_C
1501005020
1
0.5
0.3
0.2
0.1
0.05
0.03
0.02
0.01
0.005
0.003
0.002
0.001
vacuum (psia)
14.5
7.25
4.35
2.9
1.45
0.72
0.43
0.29
0.14
0.07
0.04
0.03
0.015
PFA LINING
Figure 4. Downstream/Outlet Pressure Ratings (Vacuum Service)

RSS Valve
Instruction Manual
Form 5592
March 2005
5
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 from both sides of
the valve. Drain the process media
from both sides of the valve.
DVent the power actuator loading
pressure and relieve any actuator
spring precompression.
DUse lock-out procedures to be
sure that 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 under
pressure 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 other hazards that
may be present from exposure to
process media.
Note
Whenever a line flange gasket (figure
2) seal is disturbed by removing the
valve from the line, install a new
gasket on reassembly. This is
necessary to ensure a good gasket
seal.
Packing Maintenance
Key numbers are shown in figure 10.
The packing consists of braided packing rings (key
13). The packing box is only a safety measure in
case of a leak through the bellows (key 6).
Therefore, the packing follower (key 11) is tightened
to 1.13 NSm (10 lbfSin) of torque and then loosened
one half turn. To detect a leak through the bellows
(key 6), the bonnet (key 2) can be provided with a
connection for leak-off piping.
Replacing Packing and Bushing Inserts
Key numbers are shown in figure 10.
1. Isolate the control valve from the line pressure.
Release pressure from both sides of the valve and
drain the process media from both sides of the
valve.
2. Exhaust all actuator pressure, and disconnect the
operating lines from the actuator and any leak-off
piping from the bonnet (key 2). Disconnect the
actuator stem connector, and then remove the
actuator from the valve by unscrewing the yoke
locknut (key 14).
3. Remove any travel indicator parts, the locknut
(key 10), and the travel stop (key 16) from the valve
stem (key 5) threads.
CAUTION
Follow the procedures as described in
the next steps to prevent damage to
the bonnet sealing surface and to
prevent packing box leakage.
4. Remove the packing follower (key 11). Unscrew
the cap screws (key 7) and hex nuts (key 8) that
secure the bonnet (key 2) to the valve (key 1). Then,
carefully lift the bonnet off and set it on a protective
surface to prevent damage to the bonnet sealing
surface. If the valve stem, bellows, and valve plug
(keys 5, 6, and 3) come out with the bonnet, remove
these parts from the bonnet. For 0.5 and 0.75 inch
sizes, remove the O-ring (key 30) from the bonnet.
5. Remove bushing inserts, packing rings, and
packing box ring (keys 13, 12, 28, 29).
6. Clean the packing box, packing box ring, and
packing follower.
7. Inspect the valve stem and packing box surfaces
for any sharp edges that might cut the packing.
Scratches or burrs could damage new packing or
cause packing box leakage. If the surface condition
cannot be improved by light sanding, replace the
damaged parts.
8. Install bushing inserts (keys 28 and 29). For 0.5
and 0.75 inch sizes, install the O-ring (key 30) in the
bonnet.
9. Install the bonnet (key 2) over the valve stem
(key 5). Slide the bonnet down until it properly
engages the bonnet locating diameter (figure 5) of
the valve.
Note
In order to ensure accurate positioning
of the valve plug (key 3) and seat ring

RSS Valve
Instruction Manual
Form 5592
March 2005
6
Figure 5. Bonnet, Travel Stop, and Seat Ring Installation Detail
40B4190–D
B1972–1 / IL
40B4191–E
SEAT RING
CONTACT SURFACE
SEAT RING
SEALING LEDGE
VALVE
PLUG
(KEY 3)
BELLOWS
(KEY 6)
EQUAL AT ALL
BOLTING LOCATIONS
BONNET
(KEY 2)
0.020 INCH
(0.5 mm) GAP
TRAVEL STOP
(KEY 16)
VALVE
STEM
(KEY 5)
LOCKNUT
(KEY 10)
YOKE
LOCKNUT
(KEY 14)
BONNET
LOCATING
DIAMETER
(key 4), clearance between the valve
and bonnet at all bolting locations
(figure 5) must be equal and
approximately 1.5 mm (0.060 inches)
for 0.5 and 0.75 inch valve sizes and
2.0 mm (0.080 inches) for 1- through
4-inch valve sizes. Be sure to measure
the clearance in the next step.
10. Tighten the cap screws and hex nuts (keys 7
and 8) in a crisscross pattern to a maximum torque
value of 50 NSm (37 lbfSft). To ensure accurate
positioning of the valve plug (key 3) into the seat ring
(key 4), check the gap between the valve and
bonnet with a feeler gauge (figure 5). At all bolting
locations, the gap must be equal and approximately
J1.5 mm (0.060 inches) for 0.5 and 0.75 inch
valves or J2.0 mm (0.080 inches) for 1- through
4-inch valves. In order to keep the gap equal, the
individual bolts may have to be tightened to different
torque levels.
Note
Due to the cold flowing tendency of
the valve liner, this procedure should
be repeated upon installation and after
the first thermal cycle of the valve.
11. Install the packing rings, packing box ring, and
packing follower (keys 13, 12, and 11) over the valve
stem. Tighten the packing follower to 1.13 NSm (10
lbfSin) of torque to ensure the packing rings are
seated. After the packing rings are seated, loosen
the packing follower one half turn.

RSS Valve
Instruction Manual
Form 5592
March 2005
7
Figure 6. Typical Locking Rope Installation
WITH LOCKING ROPE PARTIALLY REMOVED WITH LOCKING ROPE INSTALLED
W4471 / IL W4472 / IL
12. Manually press the valve stem (key 5) into the
valve until the valve plug contacts the seat ring.
CAUTION
Improper adjustment in step 13 might
cause damage to trim parts. Perform
this step carefully.
13. Thread the travel stop (key 16) onto the valve
stem until there is a 0.5 mm (0.020 inch) gap
between the bottom surface of the travel stop legs
and the top of the bonnet (figure 5).
14. Thread the locknut (key 10) onto the stem and
tighten it against the travel stop.
15. Mount the actuator and secure it with the yoke
locknut (key 14). Connect the actuator stem and
valve stem according to the procedure in the
appropriate actuator instruction manual.
Trim Maintenance
Key numbers are shown in figure 10.
Disassembly
1. Remove the actuator and the bonnet as
described in steps 1 through 4 of the Replacing
Packing and Bushing Inserts section.
2. Inspect parts for wear or damage that would
prevent proper operation of the valve.
Figure 7. Design RSS Valve Body Shown with Tool
Used to Remove or Install Seat Ring
W4473 / IL
SEAT
RING
SEAT
RING
TOOL
3. To replace the bellows (key 6), unscrew the valve
stem (key 5) in a counterclockwise rotation. Install
the valve stem into the new bellows with a clockwise
rotation by hand. Do not overtighten.
4. To remove the valve plug (key 3), use pliers to
remove the locking rope (key 9) that locks the valve
plug to the bellows (key 6) as shown in figure 6.
Then unscrew the plug from the bellows.

RSS Valve
Instruction Manual
Form 5592
March 2005
8
Table 3. Recommended Seat Ring Torque
Valve Size,
Inches
Newton
Meters
Pound-Force
Inches
Pound-Force
Feet
0.5
0.75
1
1.5
3
3
8
23
27
27
71
- - -
- - -
- - -
- - -
17
2
3
4
30
50
50
- - -
- - -
- - -
22
37
37
Note
To avoid cold flow of the valve liner
and deforming of the valve body seat
ring threads and seat ring contact
surfaces, promptly install a
replacement seat ring according to
step 1 of the Assembly procedures.
5. To remove the seat ring (key 4), use the seat ring
tool (figure 7 or 8) that can be ordered from the Parts
List section or made according to the dimensions in
figure 8 and table 4. To avoid cold flow of the valve
liner and deforming of the valve body seat ring
threads and seat ring contact surfaces, promptly
install a replacement seat ring according to step 1 of
the Assembly procedures.
Assembly
CAUTION
To avoid damage to the seat ring
sealing surface and/or threads in the
valve body liner, make or order the
seat ring tool shown in figures 7 and 8.
Installing the seat ring using other
tools might cause permanent damage
to the seat ring sealing surface and/or
threads allowing excessive leakage of
the valve.
1. Install the seat ring (key 4) with the seat ring tool
(figure 7 or 8) that can be ordered from the Parts List
or made according to the dimensions in table 4 and
figure 8. Tighten the seat ring until contact is felt
between the sealing ledge of the seat ring and its
mating surface in the valve (figure 5). At this point,
tighten the seat ring one quarter turn or to the torque
values listed in table 3.
Table 4. Seat Ring Tool Dimensions
VALVE
SIZE
DIMENSIONS (MILLIMETERS)
SIZE,
INCHES AOBOCOD E F G
0.5,
0.75
19.8
20.1
30.2
30.4
35.3
34.5 6.4 4.8 4.0 3.8 190
136.9
37.2
47.2
47.5
54.8
55.6 6.4 4.8 7.9 7.6 190
1.5 54.0
54.2
63.9
64.1
71.8
72.6 7.1 5.6 7.9 7.6 222
265.1
65.3
76.2
76.5
83.7
84.5 7.1 5.6 7.9 7.6 222
391.3
91.5
103.7
104.2
111.9
112.7 7.1 5.6 7.9 7.6 300
4105.9
106.2
118.2
118.5
126.2
127.0 7.1 5.6 7.9 7.6 300
VALVE
SIZE
DIMENSIONS (INCHES)
SIZE,
INCHES AOBOCOD E F G
0.5,
0.75
0.78
0.79
1.19
1.2
1.39
1.36 1/4 3/16 0.16 0.15 7-1/2
11.45
1.46
1.86
1.87
2.16
2.19 1/4 3/16 0.31 0.30 7-1/2
1.5 2.13
2.14
2.52
2.53
2.83
2.86 9/32 7/32 0.31 0.30 8-3/4
22.56
2.57
3.00
3.01
3.30
3.33 9/32 7/32 0.31 0.30 8-3/4
33.59
3.60
4.09
4.10
4.41
4.44 9/32 7/32 0.31 0.30 11-7/8
44.17
4.18
4.66
4.67
4.97
5.00 9/32 7/32 0.31 0.30 11-7/8
Figure 8. Seat Ring Tool
A3520–1 / IL
mm
(INCH)
139.7
(5-1/2)
7.9
(5/16)
9.5
(3/8)
3.9
(5/32)
15.8
(5/8)

Figure 9. Dimensions and Weights
MATCH LINE
FOR ACTUA-
TOR
10B4744–G
A5216-1 / IL
RSS Valve
Instruction Manual
Form 5592
March 2005
9
DIN FACE-TO-FACE DIMENSIONS
MATING WITH CLASS 150 FLANGES
Valve Dimensions A
pp
roximate
Valve
Size ABDEO
Approximate
Weight
Inches mm kg
0.5
0.75
130.0
130.0
60.0
60.0
141.5
141.5
89.0
98.0
6
6
Inches Inches Pounds
0.5
0.75
5.12
5.12
2.36
2.36
5.57
5.57
3.50
3.86
13
13
ANSI/ISA CLASS 150 FACE-TO-FACE DIMENSIONS
MATING WITH CLASS 150 FLANGES
Valve Dimensions A
pp
roximate
Valve
Size ABDEO
Approximate
Weight
Inches mm kg
1
1.5
2
3
4
184.0
222.0
254.0
298.0
350.0
83.0
97.0
107.0
121.0
176.0
199.0
220.0
228.0
330.0
340.0
108.0
127.0
152.4
190.5
220.0
10
17
20
39
42
Inches Inches Pounds
1
1.5
2
3
4
7.25
8.75
10.00
11.75
13.78
3.27
3.82
4.21
4.76
6.94
7.83
8.66
8.98
13.00
13.39
4.25
5.00
6.00
7.50
8.66
23
36
43
86
92
ANSI/ISA CLASS 300 FACE-TO-FACE DIMENSIONS
MATING WITH CLASS 300 FLANGES
Valve Dimensions A
pp
roximate
Valve
Size ABDEO
Approximate
Weight
Inches mm kg
1
1.5
2
197.0
235.0
267.0
90.0
101.0
115.0
199.0
220.0
228.0
123.8
156.0
165.0
11
18
20
Inches Inches Pounds
1
1.5
2
7.75
9.25
10.50
3.54
3.97
4.53
7.83
8.66
8.98
4.87
6.14
6.50
25
40
45
2. To install the valve plug (key 3), screw the valve
plug onto the bellows and insert the locking rope
with pliers (figure 6).
3. Install the assembled valve plug, bellows, and
valve stem (keys 3, 6, and 5). For metal bellows,
install the gasket (key 27).
4. Install the bonnet according to steps 9 and 10 of
the Replacing Packing and Bushing Inserts
procedure.
5. Tighten the packing follower (key 11) to 1.13 NSm
(10 lbfSin) of torque to ensure the packing rings are
seated. After the packing rings are seated loosen the
packing follower one half turn.
6. Perform steps 12 through 15 of the Replacing
Packing and Bushing Inserts section.

RSS Valve
Instruction Manual
Form 5592
March 2005
10
Parts Ordering
Note
Use only genuine Fisher replacement
parts. Components that are not
supplied by Fisher should not, under
any circumstances, be used in any
Fisher valve, because they will void
your warranty, might adversely affect
the performance of the valve, and
might jeopardize worker and
workplace safety.
Each valve body-bonnet assembly is assigned a
serial number, which can be found on the valve
nameplate. Refer to this serial number when
contacting your Fisher sales office for technical
assistance. If the valve is shipped with the actuator,
the valve nameplate is attached to the actuator. If
the valve is shipped without the actuator, the valve
nameplate is wired to the valve. When ordering
replacement parts, refer to this serial number and to
the part number from the following Parts List.
Ordering valve plug assemblies for 0.5 through
2-inch valves with 8 mm (0.3125 inch) diameter
or larger ports:
Original Design valve plugs slip onto the end of the
bellows, whereas the New Design valve plugs thread
onto the end of the bellows. Only the New Design
bellows part numbers shown in the Parts List are
now available. These New Design bellows are
acceptable for use with either plug design. When
ordering a replacement valve plug assembly, if the
existing bellows is not threaded, the bellows must be
replaced with a New Design bellows shown in the
Parts List to ensure compatibility with the new plug
assembly. If you need assistance, contact your
Fisher sales office. Be sure to provide your valve
serial number.
Parts List
Note
Part numbers are shown for recommended spares
only. For part numbers not shown, contact your
Fisher sales office.
Except where indicated, sizes shown are valve body
sizes.
Key Description Part Number
1 Valve Body or valve body/ring assembly
If you need a valve body or valve body/ring assembly as a
replacement part, order by valve size, serial number, and
desired material.
Key Description Part Number
2 Bonnet/Bushing Assembly
If you need a bonnet/bushing assembly as a replacement
part, order by valve size and stem diameter, serial number,
and desired material.
3* Valve Plug See following table
4* Seat Ring See following table
5* Valve Stem
Stainless steel
0.5 & 0.75 inch 21B7542X012
1-inch 21B7543X012
1.5 & 2-inch 21B7544X012
3 & 4-inch 20B2511X012
6* Bellows See following table
7 Cap Screw
7 Stud
8 Hex Nut
9* Locking Rope, PTFE
0.5 & 0.75 inch 20B2519X012
1, 1.5, & 2-inch 20B2519X022
3 & 4-inch 20B2519X032
10 Locknut
11 Packing Follower
12* Packing Box Ring
Stainless steel
0.5 & 0.75 inch 20B2496X012
1, 1.5, 2, 3, & 4-inch 20B2495X012
13* Packing Ring, PTFE
0.5 & 0.75 inch (2 req’d) 20B2503X012
1, 1.5, & 2-inch (2 req’d) 20B2504X012
3 & 4-inch (3 req’d) 20B2504X012
14 Yoke Locknut
16 Travel Stop
17* Line Flange Gasket (for use only if specified, see figure 2),
PTFE/composition/stainless steel (2 req’d)
For ANSI Class 150
0.5 inch 10B3221X022
0.75 inch 10B3222X022
1-inch 10B3223X022
1.5 inch 10B3224X022
2-inch 10B3225X022
For ANSI Class 150 (continued)
3-inch 10B3226X022
4-inch 10B3227X022
For ANSI Class 300
1-inch 11B5886X022
1.5 inch 11B5887X022
2-inch 11B5888X022
18 Line Flange Cap Screws (for 0.5 inch use only)
20 Pipe Plug (for use w/tapped bonnet only--not shown)
21 Seat Ring Tool (for use only if specified--see figure 7 or 8)
22 Nameplate Seal & Wire (not shown)
24* Shim (for use only w/fail-to-close actuator during
shipping [not shown]), aluminum 10B4192X012
25 Identification Plate, (not shown)
26 Drive Screw
28* Bushing Insert, Carbon-filled PTFE
0.5 & 0.75 inch 21B9345X022
1, 1.5, & 2-inch 21B9345X042
3 & 4-inch (2 req’d) 21B9345X032
29* Bushing Insert, Carbon-filled PTFE
0.5 & 0.75 inch 21B9345X012
1, 1.5, & 2-inch 21B9345X022
30* O-ring, (0.5 & 0.75 inch only)
Fluoroelastomer 16A1178X022
*Recommended spare parts

RSS Valve
Instruction Manual
Form 5592
March 2005
11
Figure 10. Design RSS Valve Assembly
SEE VIEW A
SEE VIEW B
NOTE: KEYS 17, 19, 20, 21, 22,
23, 24, 25, AND 26 ARE NOT SHOWN
VIEW A
VIEW B
COMPLETE BODY ASSEMBLY
DETAIL OF BONNET
FOR 3 AND 4-INCH VALVES
DETAIL OF HEAVY DUTY
PTFE BELLOWS CONSTRUCTION
40B4191–E / IL
40B4191–E / IL
A3598–3 / IL
BELLOWS
BELLOWS
RETAINER
LOCKING
ROPE
VALVE
PLUG
DETAIL OF 3- AND 4-INCH UĆPLUG

RSS Valve
Instruction Manual
Form 5592
March 2005
12
Key 3* Valve Plug for 8 through 96 mm (0.3125 through 4-inch) Port
Diameters (Includes Locking Rope, Key 9)
VALVE SIZE,
INCHES
PORT DIAMETER(1) THREADED-ON
DESIGN(2)
INCHES mm Inches PTFE, TFM1600
0.5, 0.75 8
12
0.3125
0.5
21B9626X062
21B9625X062
1
8
12
20
25
0.3125
0.5
0.75
1
23B9209X022(3)
23B9208X022(3)
23B9207X022(3)
23B9206X022(3)
1.5 25
40
1
1.5
21B9632X062
21B9631X062
230
50
1.1875
2
21B9634X062
21B9633X062
350
80
2
3.1875
22B0701X062
22B0434X062
465
96
2.5
4
22B0702X062
21B5680X062
1. Inch equivalents of these metric port diameters have been rounded to common
fractional diameters. Actual diameter of the 15 millimeter port is 0.591 inches, of
the 40 millimeter port is 1.575 inches, and of the 96 millimeter port is 3.780 inches.
2. See Parts Ordering section.
3. 1-inch valve size with 0.625 inch travel.
Key 4* Seat Ring
VALVE
SIZE
PORT
DIAMETER(
1
)
MATERIAL
SIZE, DIAMETER
(1)
SIZE
,
INCHES mm Inches PTFE, TFM1600
0.5, 0.75 8
15
0.3125
0.5
21B5517X032
21B5518X032
1
8
15
20
25
0.3125
0.5
0.75
1
20B4169X032
20B4170X042
20B4172X042
20B2509X032
1.5 25
40
1
1.5
20B4174X032
20B2508X032
230
50
1.1875
2
20B4164X032
20B2507X032
350
80
2
3.1875
20B4159X032
20B2506X032
465
96
2.5
4
20B4157X032
20B2505X032
New Design (See Parts Ordering
PTFE TFM1600
New Design (See Parts Ordering
Section) PTFE, TFM1600
1. Inch equivalents of these metric port diameters have been rounded to common
fractional diameters. Actual diameter of the 15 millimeter port is 0.591 inches, of
the 40 millimeter port is 1.575 inches, and of the 96 millimeter port is 3.780 inches.
Key 6* Bellows, New Design(1)
VALVE
PORT
MATERIAL
VALVE
SIZE,
INCHES
PORT
DIAMETER PTFE PTFE (TFM 1705) Heavy Duty with SST
Backup Rings
0.5 and 0.75 All 20B2491X052 - - -
1 All - - - 29B2879X022
1.5 and 2 All - - - 29B2880X022
3 and 4 All - - - 29B2881X022
1. See Parts Ordering section.
Note
Neither Emerson, Emerson Process
Management, nor Fisher assume
responsibility for the selection, use, or
maintenance of any product.
Responsibility for proper selection,
use, and maintenance of any Fisher
product remains solely with the
purchaser and end-user.
*Recommended spare parts
Fisher
Marshalltown, Iowa 50158 USA
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461
Emerson Process Management
www.Fisher.com
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.
We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Neither Emerson, Emerson Process Management, nor Fisher assume responsibility for the selection, use or maintenance of any Fisher product. Re-
sponsibility for proper selection, use and maintenance of any Fisher product remains solely with the purchaser and end-user.
EFisher Controls International LLC 1986, 2005; All Rights Reserved Printed in USA
Fisher is a mark owned by Fisher Controls International LLC, a member of the Emerson Process Management business division of Emerson
Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their respective owners.