Fisher RSS User manual

www.Fisher.com
Fisher™RSS Lined Globe Valve
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Educational Services 2.........................
Specifications 3...............................
Installation 3..................................
Maintenance 5.................................
Packing Maintenance 8.........................
Replacing Packing and Bushing Inserts 8..........
Trim Maintenance 11..........................
Disassembly 11............................
Assembly 12..............................
Parts Ordering 13...............................
Parts List 13...................................
Figure 1. Fisher RSS Valve with 667 Actuator
and FIELDVUE™ DVC6200 Digital Valve Controller
W9164‐2
Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for NPS 1 through NPS 4 Fisher RSS
lined globe valves. Refer to separate manuals for instructions covering the actuator, positioner, and accessories.
Description
The 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 RSS valve body provides an economical alternative to alloy valve bodies in a
wide variety of applications.
Do not install, operate, or maintain an RSS 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 sales office or Local Business Partner before
proceeding.
Instruction Manual
D101299X012
RSS Valve
July 2017

Instruction Manual
D101299X012
RSS Valve
July 2017
2
Table 1. Specifications
Valve Sizes
NPS J1, J1‐1/2, J2, J3, and J4
Face‐To‐Face and Flange Compatibility
VALVE SIZE,
NPS
DUCTILE IRON
Raised‐Face Flange
CL150 CL300
Face‐To‐Face
ASME(1) EN(2) ASME(1) EN(2)
1
1‐1/2
2
3
4
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 EN 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
Shutoff Classification
Class VI per ANSI/FCI 70‐2 and IEC 60534‐4
Application Limits
Liquid Service: For cavitating applications, contact
your Emerson sales office or Local Business Partner
Gas Service: Velocity 0.33 MACH
Temperature Capabilities
Positive Pressure Service: -29 to 180_C
(-20 to 360_F)
Vacuum Service: -29 to 180_C (-20 to 360_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, _CPRESSURE, BAR TEMPERATURE, _FPRESSURE, PSIG
Ductile Iron Ductile Iron
-29 to 38
93
149
180
19.7
17.9
15.9
14.8
-20 to 100
200
300
360
285
260
230
215
1. Includes valves with CL300 flanges.
Educational Services
For information on available courses for Fisher RSS valves, as well as a variety of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: [phone] or 1-800-338-8158
E-mail: [email protected]
emerson.com/fishervalvetraining

Instruction Manual
D101299X012
RSS Valve
July 2017
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Specifications
Specifications for the 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.
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.
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
Emerson sales office or Local Business Partner.
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. 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.

Instruction Manual
D101299X012
RSS Valve
July 2017
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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 Emerson sales office or Local Business Partner.
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.
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.
Note
Bench sets for Fisher 657 and 667 actuators must be adjusted after installation on the RSS valve. The heavy duty bellows on the
RSS valve has a significant spring rate that must be included in the bench set for proper operation.
Figure 2. Typical Line Flange Gasket (Key 17)
PTFE
COMPOSITION
STAINLESS STEEL
SECTION A-A
10B3224-C
A5039
A
A

Instruction Manual
D101299X012
RSS Valve
July 2017
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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:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Disconnect 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.
D Use 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.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The 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.
D Check 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.

Instruction Manual
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RSS Valve
July 2017
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Figure 3. Downstream/Outlet Pressure Ratings (Positive Pressure Service)
HEAVY‐DUTY BELLOWS WITH METAL SUPPORT RINGS
NOTE: THE LINER DOES NOT LIMIT THE DOWNSTREAM PRESSURE RATING IN POSITIVE PRESSURE SERVICES.
E0981 68 122 212 302 360_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 4. Downstream/Outlet Pressure Ratings (Vacuum Service)
E0980
68 122 212 302 360_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

Instruction Manual
D101299X012
RSS Valve
July 2017
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Figure 5. Bonnet, Travel Stop, and Seat Ring Installation Detail
VALVE
STEM
(KEY 5)
LOCKNUT
(KEY 10)
YOKE
LOCKNUT
(KEY 14)
BONNET
LOCATING
DIAMETER
TRAVEL
STOP
(KEY 15)
BONNET
(KEY 2)
0.6 mm
(O.020 INCH) GAP
EQUAL AT ALL BOLTING
LOCATIONS
BELLOWS
(KEY 6)
VALVE
PLUG
(KEY 3)
SEAT RING
CONTACT SURFACE
SEAT RING
SEALING LEDGE
29B2880-B
E1021
40B4191-E

Instruction Manual
D101299X012
RSS Valve
July 2017
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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.
5. Remove bushing inserts, packing rings, and packing box ring (keys 13, 12, 28, and 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).
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 (key 4), clearance between the valve and bonnet at
all bolting locations (figure 5) must be equal and approximately 2.0 mm (0.080 inches) for NPS 1 through 4 valves. 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

Instruction Manual
D101299X012
RSS Valve
July 2017
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the valve and bonnet with a feeler gauge (figure 5). At all bolting locations, the gap must be equal and
approximately 2.0 mm (0.080 inches) for NPS 1 through 4 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.
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.
Figure 6. Typical Locking Rope Installation
WITH LOCKING ROPE PARTIALLY REMOVED WITH LOCKING ROPE INSTALLED
W9165‐1 W9166‐1

Instruction Manual
D101299X012
RSS Valve
July 2017
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Figure 7. Fisher RSS Valve Body Shown with Tool Used to Remove or Install Seat Ring
W4473
SEAT
RING
SEAT
RING
TOOL
Table 3. Seat Ring Tool Dimensions
VALVE
SIZE,
NPS
DIMENSIONS (MILLIMETERS)
AOBOCOD E F G
136.9
37.2
47.2
47.5
54.8
55.6 6.4 4.8 7.9 7.6 190
1‐1/2 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,
NPS
DIMENSIONS (INCHES)
AOBOCOD E F G
11.45
1.46
1.86
1.87
2.16
2.19 1/4 3/16 0.31 0.30 7‐1/2
1‐1/2 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
mm
(INCH)
139.7
(5‐1/2)
7.9
(5/16)
9.5
(3/8)
3.9
(5/32)
15.8
(5/8)
G
DE
A4
B4
C4
F
30_