Emerson Fisher CCV-N User manual

www.Fisher.com
Fisher™CCV-N Control Valves
Contents
Introduction 1.................................
Scope of Manual 1.............................
Specifications 2...............................
Description 2.................................
Educational Services 2.........................
Installation 3..................................
Maintenance 4.................................
Packing Maintenance 4.........................
Replace Packing 5.............................
Trim Maintenance 7...........................
Disassembly 7.............................
Valve Plug Maintenance 8...................
Assembly 9...............................
Parts Ordering 10...............................
Parts Kits 10...................................
Parts List 11...................................
Figure 1. Fisher NPS 3 CCV-N Section View
Introduction
Scope of Manual
This instruction manual includes installation, maintenance and parts information for NPS 2, 3 and 4 Class 300 CCV-N
fuel gas control valves. These valves are used in gas turbines which meter the fuel gas to the combustion chamber of
the turbine and provide linear flow with the ability to choke very quickly at a low pressure drop.
Refer to separate manuals for instructions covering the actuator and accessories.
Do not install, operate, or maintain CCV-N valves 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.
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Table 1. Specifications
Valve Sizes
NPS J2 J3 J4
End Connection Style(1)
CL 300 Raised Face (RF) Flanges per ASME B16.5
Maximum Inlet Pressure and Temperature(1)
Consistent with CL300 pressure-temperature ratings
to 316_C (600_F)
Maximum Pressure Drop
Consistent with pressure-temperature ratings per
ASME B16.34
Shutoff Classification
Class IV shutoff per ANSI/ FCI 70-2
Flow Direction
Flow Down
Flow Characteristic
Linear from 15% to 100% travel
Approximate Weights
VALVE SIZE, NPS WEIGHT
Kg Pounds
2 31 68
3 51 112
4 77 168
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
Description
CCV-N valves are single port, angle-style, and balanced valves with metal seat, seat ring retainer guide, and
push-down-to-close valve plug action.
Educational Services
For information on available courses for Fisher CCV-N fuel gas control valves, as well as a variety of other products,
contact:
Emerson Process Management
Educational Services - Registration
Phone: [phone] or 1-800-338-8158
E-mail: [email protected]
http://www.emersonprocess.com/education

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Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
Personal injury or equipment damage caused by sudden release of pressure may result if the valve assembly is installed
where service conditions could exceed the limits given in table 1 or on the appropriate nameplates. To avoid such injury or
damage, provide a relief valve for over-pressure protection as required by government or accepted industry codes and
good engineering practices.
Check with your process or safety engineer for any additional measures that must be taken to protect against 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 were 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 Process Management sales office.
1. Before installing the valve, inspect the valve and associated equipment for any damage and any foreign material.
2. Make certain the valve body interior is clean, that pipelines are free of foreign material, and that the valve is
oriented so that pipeline flow is in the same direction as the arrow on the side of the valve.
3. The control valve assembly may be installed in any orientation, unless limited by seismic criteria. However, the
normal method is with the actuator installed vertically above the valve. Other positions may result in uneven valve
plug and seat ring retainer wear and improper operation. For more information, consult your Emerson Process
Management sales office.
4. Use a suitable gasket between valve and pipeline flanges.
5. If continuous operation is required during inspection or maintenance, install a three-valve bypass around the
control valve assembly.
6. Refer to the actuator mounting procedure in the appropriate actuator instruction manual.
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however, the packing
might require some readjustment to meet specific service conditions.

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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 maintenance
and trim maintenance. All maintenance operations may be performed with the valve in the line.
WARNING
Avoid personal injury or property damage from sudden release of process pressure. 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 Release the actuator loading pressure and relieve any actuator spring pre compression.
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 additional measures that must be taken to protect against process
media.
CAUTION
Follow instructions carefully to avoid damaging the product surfaces, which could result in damage to the product.
Note
Whenever a gasket seal is disturbed by removing or shifting parts, a new gasket should be installed upon reassembly. This is
necessary to ensure a good gasket seal, since the used gasket may not seal properly.
Packing Maintenance
If there is undesirable packing leakage, first try to limit the leakage and establish a stem seal by tightening the packing
flange nuts.
If the packing is relatively new and tight on the stem, and if tightening the packing flange nuts does not stop the
leakage, it is possible that the valve stem is worn or nicked so that a seal cannot be made. The surface finish of a new
valve stem is critical for a good packing seal. If the leakage comes from the outside diameter of the packing, it is
possible that the leakage is caused by nicks or scratches around the packing box wall. If performing any of the
following procedures, inspect the valve stem and packing box wall for nicks and scratches.

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Replace Packing
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual
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 shut off all pressure lines to the power
actuator, and releases 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. Observe the Warnings at the start of the Maintenance section.
2. Disconnect the operating lines from the actuator and any leak-off piping from the bonnet. Disconnect the stem
connector and remove the actuator from the valve.
3. Loosen the packing flange nuts (key 5, figure 3) so that the packing is not tight on the valve stem (key 7, figure 3).
Remove any travel indicator parts and stem locknuts from the valve stem threads.
WARNING
To avoid personal injury or property damage caused by uncontrolled movement of the bonnet, loosen the bonnet by
following the instructions in the next step. Do not remove a stuck bonnet by pulling on it with equipment that can stretch
or store energy in any other manner. The sudden release of stored energy can cause uncontrolled movement of the bonnet.
Figure 2. Double PTFE Arrangements
A6746
12.7 mm
(1/2 INCH)
STEM
UPPER WIPER
(KEY 12)
PACKING
FOLLOWER (KEY 13)
LANTERN RING
(KEY 8)
PACKING BOX
RING (KEY 11)
FEMALE
ADAPTER
PACKING RING
MALE
ADAPTER
LOWER WIPER
NOTE:
PACKING SET (KEY 6) CONTAINS A FEMALE ADAPTER, V-RING PACKING RINGS, MALE ADAPTER, AND LOWER WIPER RINGS.
1
1
1
1
1
4. Hex nuts (key 16, figures 4, 5, or 6) attach the bonnet (key 1, figure 3) to the body (key 1, figures 4, 5, or 6). Loosen
these nuts approximately 3 mm (1/8 inch). Then loosen the body-to-bonnet gasketed joint by either rocking the
bonnet or prying between the bonnet and valve. Work the prying tool around the bonnet until the bonnet loosens.
If no fluid leaks from the joint, remove the nuts or cap screws completely and carefully lift the bonnet off the valve.

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CAUTION
Avoid damaging the seating surface caused by the valve plug and stem assembly dropping from the bonnet (key 1, figure 3)
after being lifted partway out. When lifting the bonnet, temporarily install a valve stem locknut on the valve stem. The
locknut will prevent the valve plug and stem assembly from dropping out of the bonnet.
5. Remove the locknut and separate the valve plug and stem from the bonnet. Set the parts on a protective surface to
prevent damage to gasket or seating surfaces.
6. Remove the bonnet gasket (key 10, figure 4, 5, or 6) and cover the opening in the valve to protect the gasket
surface and prevent foreign material from getting into the valve body cavity.
CAUTION
To prevent possible product damage, cover the opening in the valve in the following procedure to prevent foreign material
from getting into the valve body cavity.
7. Remove the packing flange nuts, packing flange, upper wiper, and packing follower (keys 5, 3, 12, and 13, figure 3).
Carefully push out all the remaining packing parts from the valve side of the bonnet using a rounded rod or other
tool that will not scratch the packing box wall. Clean the packing box and the metal packing parts.
8. Inspect the valve stem threads and packing box surfaces for any sharp edges which might cut the packing.
Scratches or burrs could cause packing box leakage or damage to the new packing. If the surface condition cannot
be improved by light sanding, replace the damaged parts by following the appropriate steps in the Trim
Maintenance procedure.
9. Remove the covering protecting the valve body cavity and install a new bonnet gasket (key 10, figure 4, 5, or 6)
making sure the gasket seating surfaces are clean and smooth. Then slide the bonnet over the stem and onto the
stud bolts (key 15, figure 4, 5, or 6)
WARNING
Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or
assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the
serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design
or code limits intended for this particular service. Install studs with the material grade and manufacturer's identification
mark visible. Contact your Emerson Process Management representative immediately if a discrepancy between actual
parts and approved parts is suspected.
10. Lubricate the studs (key 15, figure 4, 5, or 6) and all surfaces the studs and nuts come into contact with. Tighten the
nuts (key 16, figure 4, 5, or 6) in a uniform, multistage cross pattern. It is recommended that torquing be performed
in a minimum of four torque levels until the final torque level is achieved. Required bolt torques can be found in
table 2 below.
Table 2. Body‐to‐Bonnet Torque Guidelines
VALVE SIZE, NPS
BOLT TORQUES
SA193-B7
NSm Lbf‐ft
2 91 67
3 122 90
4 163 120

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11. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 2. Place a
smooth-edged pipe over the valve stem and gently tap each soft packing part into the packing box.
12. Slide the packing follower, upper wiper, and packing flange (keys 13, 12, 3, figure 3) into position. Lubricate the
packing flange studs (key 4, figure 3) and the faces of the packing flange nuts (key 5, figure 3). Install the packing
flange nuts.
13. Tighten the packing flange nuts alternately in small equal increments until one of the nuts reaches the minimum
recommended torque shown in table 3 below. Then, tighten the remaining flange nuts until the packing flange is
level and at a 90-degree angle to the valve stem.
Table 3. Recommended Torque for Packing Flange Nuts
VALVE STEM DIAMETER PRESSURE RATING
PTFE PACKING
Minimum Torque Maximum Torque
mm Inch NSm Lbf‐in NSm Lbf‐in
12.7 1/2 CL300 3 30 5 42
14. Mount the actuator on the valve assembly and reconnect the actuator and valve stem according to the procedure
in the appropriate actuator instruction manual.
Trim Maintenance
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
Disassembly
1. Remove the actuator and the bonnet according to steps 1 through 6 of the Replacing Packing procedure in the
Maintenance section.
WARNING
To avoid personal injury due to leaking fluid, avoid damaging gasket sealing surfaces. The surface finish of the valve stem
(key 7, figure 3) is critical for making a good packing seal. The inside surface of the seat ring retainer (key 3, figure 4, 5, or
6), is critical for smooth operation of the valve plug. The seating surfaces of the valve plug (key 2, figure 4, 5, or 6) and seat
ring (key 9, figure 4, 5, or 6) are critical for proper shutoff. Unless inspection reveals otherwise, assume all these parts are in
good condition and protect them accordingly.
2. Remove the packing flange nuts, packing flange, upper wiper, and packing follower (keys 5, 3, 12, and 13, figure 3).
Carefully push out all the remaining packing parts from the valve side of the bonnet using a rounded rod or other
tool that will not scratch the packing box wall. Clean the packing box and the metal packing parts.
3. Inspect the valve stem threads and packing box surfaces for any sharp edges which might cut the packing.
Scratches or burrs could cause packing box leakage or damage to the new packing. If the surface condition cannot
be improved by light sanding, replace the damaged parts.
4. On an NPS 2 CCV-N, remove the bonnet spacer (key 32, figure 4) and associated gasket (key 10, figure 4) on top of
the spacer.
5. Remove the seat ring retainer (key 3, figure 4, 5, or 6), valve plug and stem assembly, and associated gaskets (key
10, 12 , figure 4, 5, or 6).

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6. Separate the plug stem assembly and seat ring retainer (key 3, figure 4, 5, or 6) by sliding the plug stem assembly
through the bottom of seat ring retainer (key 3, figure 4, 5, or 6).
7. Remove the seat ring (key 9, figure 4, 5, or 6) and seat ring gasket (key 13, figure 4, 5, or 6).
8. For all constructions, inspect parts for wear or damage which would prevent proper operation of the valve. Replace
or repair trim parts according to the following procedure for plug maintenance procedure.
Valve Plug Maintenance
Except where indicated, NPS 2 key numbers are referenced in figure 4, NPS 3 key numbers are referenced in figure 5,
and NPS 4 key numbers are referenced in figure 6.
Note
Due to the design requirement of this product, the valve and stem are precision-matched and the stem is not replaceable. If
damaged, the valve plug and stem must be replaced as an assembly. Contact Emerson Process Management sales office for parts
replacement.
CAUTION
To avoid the valve plug seal ring (key 24) not sealing properly, be careful not to scratch the surfaces of the ring groove in
the valve plug or any of the surfaces of the replacement ring.
1. With the valve plug (key 2) removed according to the Disassembly portion of the Trim Maintenance procedure,
proceed as appropriate:
2. For NPS 2 (figure 4): Punch out the pin (key 8) that connects the valve plug (key 2), stem (key 7, figure 3) and seal
retainer (key 4). Remove the seal retainer (key 4) with a spanner wrench or strap wrench and slide the upper
anti-extrusion ring, seal ring, bi-directional back up ring, seal ring, and anti-extrusion ring (key 63, 24, and 33) off
the plug.
Inspect all parts for defects and cleanliness and replace the damaged parts. To install the seal parts, slide the lower
anti-extrusion ring, seal ring, bi-directional back up ring, seal ring, and upper anti-extrusion ring (key 63, 24, and 33)
into the plug, as shown in figure 4. Apply anti-seize lubricant (key 45) to the thread of the seal retainer and flat
mating surfaces between the seal retainer and plug (key 2 and 4). Then, install the seal retainer (key 4) into the plug
(key 2) and tighten it with a spanner wrench or strap wrench until the pin holes are aligned. Once the holes are
aligned, secure the seal retainer (key 4) to the plug stem assembly with a new pin (key 8). Make sure the pin is
inserted completely into the assembly with 0.025” depth from the radial surface.
CAUTION
To avoid damaging the seal ring, slowly and gently stretch it for the following procedure. Avoid jerking sharply on the ring.
For NPS 3 (figure 5): Remove the retainer ring (key 26) off the groove, and slide the back up ring, upper
anti-extrusion ring, seal ring, bidirectional back up ring, seal ring, and anti-extrusion ring (key 63, 24, 25, and 33) off
the plug.
Inspect all parts for defects and cleanliness and replace the damaged parts. To install the seal parts, slide the lower
anti-extrusion ring, seal ring, bi-directional back up ring, seal ring, upper anti-extrusion ring, and back up ring (key

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63, 24, 25, and 33) into the plug, as shown in figure 6, view B. Then install the retaining ring (key 26) by inserting
one end in the groove and pressing the ring into the groove while turning the plug. Again, be careful not to scratch
any surfaces of the ring or plug.
NPS 4 (figure 6): Using a punch, drive the pin (key 5) further into the pin hole, as shown in figure 7. To prevent
damaging the outer diamter of the plug, use a face spanner wrench to unthread the seal retainer (key 4) from the
plug (key 2) using the pin holes on the top surface of the seal retainer, as shown in figure 7. Once the seal retainer is
unthreaded, slide the upper anti-extrusion ring, seal ring, bi-directional back up ring, seal ring, and anti-extrusion
ring (key 63, 24, and 33) off the plug.
Inspect all parts for defects and cleanliness and replace the damaged parts. To install the seal parts, slide the lower
anti-extrusion ring, seal ring, bi-directional back up ring, seal ring, and upper anti-extrusion ring (key 63, 24, and 33)
into the plug, as shown in figure 6, view B. Then, apply anti-seize lubricant (key 45) to the seal retainer threads and
flat mating surfaces between the seal retainer and plug (key 2 and 4). Install the seal retainer into the plug (key 2
and 4) and tighten it with a spanner wrench until the pin holes are aligned. Retain the seal retainer (key 4) to the
plug (key 2) by pinning a new pin (key 5) into one of the remaining pin holes with 0.025” depth from the surface. Do
not insert the pin into a pin hole that was previously pinned, as shown in figure 7.
Assembly
Except where indicated, key numbers are referenced in figure 4, 5, or 6.
1. Inspect all parts for defects and cleanliness; remove any burrs on metal valve components.
2. Place a gasket (key 13) into the valve body (key 1) where the seat ring flanges seats. Then, insert the seat ring
(key 9) into the valve body (key 1). The seat ring (key 9) end will protrude out from the valve body (key 1).
3. Assemble the plug stem assembly of each size into the valve body (key 1) as the following:
4. Inspect the sealing surface of the plug stem seal assembly for nicks and scratches. Then, apply white lithium grease
(key 46) sparingly around the spring-loaded seal ring (key 24).
5. Insert the top end of the stem (key 7) from the plug stem seal assembly through the bottom of the seat ring
retainer (key 3) into the inner bore. Ensure no damage is done to the seals, as shown in figure 8. Slide the plug stem
seal assembly into the seat ring retainer (key 3) until the top of the plug stem seal assembly is even with the top of
the seat ring retainer (key 3). At this point, the plug (key 2) should have a snug fit with the seat ring retainer (key 3).
6. Hold on to the end of the stem (key 7) and seat ring retainer (key 3) and slowly insert them into the valve body
(key 1), as shown in figure 4, 5, or 6. Be cautious and do not swing the assemblies, as the seat ring retainer (key 3)
may fall off. At the same time, ensure that the seat ring retainer (key 3) bottom diameter is guided properly to the
seat ring (key 9) when installed into the valve body (key 1).
7. After the plug (key 2), stem (key 7, figure 3), and seat ring retainer (key 4) assembly is placed into valve body
(key 1), ensure one of the seat ring retainer legs is aligned with the inlet. Once the seat ring retainer is oriented,
gently push the plug seating surface against the seat ring (key 9). Note – the plug stem assembly is symmetrical, so
no orientation is necessary.
8. Slide quantity-1 spiral wound gasket (key 12) and quantity-1 flat sheet gasket (key 10) over the seat ring retainer
(key 3). Make sure the bottom of the gasket is flush with the mating surface on the seat ring retainer shoulder.
9. Coat the bonnet studs (key 15) with anti-seize lubricant (key 45) up to the deformed thread. Thread the studs into
the valve body (key 1) by hand until the deformed thread prevents further insertion.
10. If no bonnet spacer is required for the construction, skip this step and go to step 11. Slide the bonnet spacer
(key 32) onto the flat sheet gasket (key 10) over the seat ring retainer (key 3). Then, slide another flat sheet gasket
(key 10) onto the bonnet spacer (key 32) over the seat ring retainer (key 3).
11. Mount the bonnet on the valve body and complete the assembly according to steps 10 through 14 of the packing
replacement procedure.

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Parts Ordering
Each body‐bonnet assembly is assigned a serial number which can be found on the valve body. This same number also
appears on the actuator nameplate when the valve is shipped from the factory as part of a control valve assembly.
Refer to the serial number when contacting your Emerson Process Management sales office for technical assistance.
When ordering replacement parts, refer to the serial number and to the eleven‐character part number for each part
required from the following parts kit or parts list information.
CAUTION
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.
Parts Kits
Standard Packing Repair Kits
Table 4. Standard Packing Repair Kits
Stem Diameter mm (Inches)
Yoke Boss Diameter, mm (Inches)
12.7 (1/2)
71 (2-13/16)
Double PTFE (Contains Keys 12, 6, 8, 11, and 218) RPACKX00662
Gasket Kits
Table 5. Gasket Kits
Valve Size, NPS Key Numbers Kits
210, 12, 13 RGASKETXF82
310, 12, 13 RGASKETXF92
410, 12, 13 RGASKETXG12
Table 6. Gasket Descriptions
Key Number Description Materials
10 Bonnet Gasket Graphite/ S31600
12 Spiral-Wound Gasket N06600/ Graphite
13 Seat Ring Gasket Graphite/ S31600
Seal Ring Kits
Table 7. Seal Ring Kits
Valve Size Port Size Key Numbers Kits
NPS 2 1 1/2 8, 63, 24, 33 RSEALX00262
NPS 3 2 1/4 26, 25, 63, 24, 33 RSEALX00272
NPS 4 3 1/10 5, 63, 24, 33 RSEALX00282

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Parts List
Note
Contact your Emerson Process Management sales office for Part
Ordering information.
Bonnet Assembly (figure 3)
Key Description
1 Bonnet
3 Packing Flange
4 Packing Stud
5 Packing Nut
6* Packing Set See Parts Kits
7 Valve Stem
8* Lantern Ring See Parts Kits
11* Packing Box Ring See Parts Kits
12* Upper Wiper See Parts Kits
13 Packing Follower
14 Pipe Plug
34 Lubricant, anti-seize
218* Lower Wiper See Parts Kits
Valve Assembly (figure 4, 5, or 6)
Key Description
1 Valve Body
2 Plug
3* Seat Ring Retainer
Key Description
4 Seal Retainer
5* Groove pin See Parts Kits
7 Valve Stem
8* Groove pin
9* Seat Ring
10* Bonnet Gasket See Parts Kits
12* Spiral-wound Gasket See Parts Kits
13* Seat Ring Gasket See Parts Kits
15 Bonnet Stud
16 Bonnet Nut
24* Spring Load Seal Ring See Parts Kits
25* Backup Ring See Parts Kits
26* Retaining Ring See Parts Kits
32 Bonnet Spacer
33* Bi-directional Ring See Parts Kits
45 Lubricant, anti-seize
46 White lithium grease
63* PEEK Anti-extrusion Ring See Parts Kits
Recommended Spare Parts Assembly
*Plug/Stem/Seal Assembly
NPS 2: Includes key 7, 4, 2, 8, 24 (2 qty), 63 (2 qty), 33
NPS 3: Includes key 7, 2, 8, 24 (2 qty), 63 (2 qty), 33, 25, 26
NPS 4: Includes key 2, 4, 7, 8, 5, 24 (2 qty), 63 (2 qty), 33
Figure 3. Bonnet and Packing Arrangements with Key Numbers
(1) FEMALE ADAPTER
(1) MALE ADAPTER
(3) PACKING RING
APPLY LUB/SEALANT
*Recommended spare parts

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Figure 4. NPS 2 CCV-N Valve Assembly with Key Numbers
VIEW A
VIEW A
VIEW B
VIEW B
GE84785
APPLY LUB/SEALANT

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Figure 5. NPS 3 CCV-N Valve Assembly with Key Numbers
VIEW A
VIEW A
VIEW B
VIEW B
GE84772
APPLY LUB/SEALANT

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Figure 6. NPS 4 CCV-N Valve Assembly with Key Numbers
VIEW A
VIEW A
VIEW B
VIEW B
GE84780
APPLY LUB/SEALANT

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Figure 7. NPS 4 CCV-N Plug Maintenance
NEW PIN
IN NEW
PIN HOLE
USED
PIN HOLE
Figure 8. Insert of Plug Stem Seal Assembly through the Bottom of the Seat Ring Retainer
SEAT RING
RETAINER
PLUG STEM
SEAL ASSEMBLY

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Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
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. 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.
E2016 Fisher Controls International LLC. All rights reserved.
Fisher is a mark 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.
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.