Emerson Fisher V280 User manual

www.Fisher.com
Fisher™V280 Full-Bore Ball Control Valve
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Specifications 2...............................
Educational Services 3.........................
Installation 4..................................
Maintenance 5.................................
Packing Maintenance 6.........................
Stopping Leakage 6........................
Replacing Packing 6........................
Seal Ring Maintenance 9.......................
Disassembly 9.............................
Assembly 11..............................
Actuator Mounting 13...........................
Determining Closed Position 13.................
Parts Ordering 14...............................
Parts List 16...................................
Figure 1. Fisher V280 Control Valve
X1611
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts information for the Fisher V280
Full-Bore Ball control valve (see figure 1). Refer to separate manuals for information concerning the actuator,
positioner, and accessories.
Do not install, operate, or maintain a V280 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 before proceeding.
Description
The Fisher V280 is a three-piece, trunnion mounted, full-bore control valve designed with features for optimized
pressure, flow, and process control. The V280 comes standard as a single-seal construction with optional dual-seal
construction allowing for bidirectional flow and double block-and-bleed operation, with or without attenuation. Valve
constructions with attenuators combine the efficiency of a rotary valve with the noise reducing capability of a special
trim. Valve constructions without attenuators present little or no restriction to flow at full travel. The V280
construction meets ANSI/NACE MR0175/ISO 15156 as standard.
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Specifications
Valve Sizes and End Connection Styles
NPS J6, J8, J10, J12, and J16 flanged valve
size with CL900 raised-face flanges compatible with
ASME B16.5. Consult your Emerson sales office for
other end connection styles
Maximum Inlet Pressure and Temperatures(1)
Consistent with CL900 pressure-temperature ratings
per ASME B16.34
Maximum Allowable Shutoff Pressure Drop(1)
For Single-Seal and Dual-Seal Construction (except
where further limited by pressure-temperature rating
of the valve body):
CL900: 153.2 bar (2220 psig) at 38°C (100°F)
Shutoff Classifications
Single or Dual-Seal Construction
Class IV standard: ANSI/FCI 70-2 and IEC 65034-4
Class VI optional: ANSI/FCI 70-2 and IEC 65034-4
Flow Characteristic
JModified linear with single high-density attenuator
JModified equal percentage with single
characterized attenuator
JModified equal percentage without attenuator
Flow and Shutoff Direction
Unidirectional flow is forward flow. Seal is upstream
Single Seal Construction: Should be used for
unidirectional flow and unidirectional shutoff only
Dual Seal Construction: V280 with Aerodome and
unattenuated V280 may be used for unidirectional
and bidirectional flow
V280 with Hydrodome should be used for
unidirectional flow only for effective anti-cavitation
protection. Bidirectional shutoff requires dual seal
construction
Flow Coefficients
See Fisher Catalog 12
Seal Material and Temperature Capabilities(1)
Standard: POM (polyoxymethylene) -29 to 82°C (-20
to 180°F)
Optional: POM (polyoxymethylene) with Nitrile MoS2
Impregnated O-rings -46 to 82°C (-50 to 180°F) or
PTFE/PEEK(2) with flurorocarbon O-rings -23 to 204°C
(-10 to 400°F)
Maximum Ball Rotation
90°
Actuator Mounting
Right-hand or left-hand mounted as viewed from the
valve inlet from forward flow
Packing Arrangements
PTFE Packing: Standard construction
ENVIRO-SEAL™Packing: This optional packing system
provides improved sealing, guiding, and transmission
of loading force to control liquid and gas emissions
Approximate Weights
See table 2
Options
JDouble block-and-bleed applications (Dual seal
construction is required)
JTwo or three-stage Aerodome attenuator,
two-stage or three-stage Hydrodome attenuator
JRing type joint flanges
JInconel drive shaft
JKeyed shaft
JNitrile MoS2Impregnated O-rings
JS31600 SST ENC ball
JPTFE/PEEK seal insert
JContact your Emerson sales office for other
options
1. The pressure or temperature limits in this bulletin and any applicable standard or code limitation for this valve should not be exceeded.
2. PTFE stands for Polytetrafluoroethylene and PEEK stands for PolyEtherEtherKetone.

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Table 1. Standard Materials of Construction
Part Material
Valve Body LF2 Carbon Steel
Ball Carbon Steel ENC
Seal POM with S31600 SST Seal Blank
Drive Shaft S17400 SST H1150D
Dome Attenuator S17400 SST
Wave Spring N07750
Retaining Ring N07750
Tailpiece LF2 Carbon Steel
Tailpiece Mounting Bolting B7M Steel
Bearing Plate Carbon Steel
Bearings N04400 with PTFE
Thrust Washer Carbon filled PTFE
Packing Box Housing Carbon Steel
Packing PTFE/Carbon filled PTFE
Packing Bolting B7M Steel
Packing Follower, Packing Box Ring Annealed S31600 SST
Groove Pins S31600
O-Rings Nitrile
Actuator Mounting Bolting Steel Grade 5
Table 2. Face‐to‐Face Dimensions(1) and Approximate Weights
VALVE SIZE, NPS CLASS FACE‐TO‐FACE DIMENSION APPROXIMATE WEIGHT
mm Inches kg lbf
6
900
610 24.00 415 915
8 737 29.00 753 1660
10 838 33.00 1143 2520
12 965 38.00 1823 4020
16 1130 44.50 2885 6360
1. Dimensions per ASME B16.10-2017.
Educational Services
For information on available courses for Fisher V280 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

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Installation
WARNING
D To avoid personal injury, always wear protective gloves, clothing, and eyewear when performing any installation
operations.
D To avoid personal injury or property damage resulting from the bursting of pressure retaining parts, be certain the
service conditions do not exceed the limits given in this manual.
D To avoid personal injury or property damage that can result from the sudden release of process pressure if valve or
mating pipe flange pressure ratings are exceeded, provide a relief valve for over‐pressure protection as required by
government or accepted industry codes and good engineering practices.
D Service conditions are limited for valve and trim material combinations. Do not apply any other service conditions to the
valve without first contacting your Emerson sales office.
D Personal injury could result from packing leakage. See the Packing Maintenance section for adjustment information.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
D If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
D Use proper lifting and rigging practices while moving the valve or valve/actuator assembly.
Key number locations are shown in figure 4 unless otherwise noted. Throughout this manual, the component key
number will be identified for clarity.
1. Install a three‐valve bypass around the control valve assembly if continuous operation will be necessary during
inspection and maintenance of the valve.
2. The valve is normally shipped as part of a control valve assembly, with a factory adjusted actuator mounted on the
valve. If the valve or actuator has been purchased separately, or if the actuator has been removed, refer to the
Actuator Mounting section and the appropriate actuator instruction manual for installation and adjustment
procedures.
3. The standard valve construction allows uni-directional flow. If possible, install the valve in a horizontal pipeline with
the drive shaft (key 20) horizontal. The actuator can be right- or left-hand mounted in any of the positions shown in
the actuator instruction manual.
CAUTION
Be certain the valve and adjacent pipelines are free of any foreign material that could damage the valve sealing surfaces.
Impurities or entrained solids in the process fluid could plug the passages in the trim. If the process fluid is not clean, install
a filter upstream to keep the pipeline free of impurities or entrained solids.
4. Provide appropriate flange gaskets, and place the valve in the pipeline. Tighten flange bolting in a star pattern to
ensure the flange gaskets are compressed evenly.
Note
Standard Fisher V280 valve packings (key 105) are composed of:
D Conductive packing ring (graphite ribbon packing), or

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D Partially conductive packing rings (for example: a carbon-filled PTFE female adaptor with PTFE V-ring packing or a
graphite-composition packing ring with a PTFE/composition packing ring).
To electrically bond the drive shaft to the valve body for hazardous area service, an alternate shaft-to-body bonding strap can be
provided by using the follow step (see figure 2).
5. For hazardous area applications where redundant shaft-to-body grounding is preferred, attach the optional
bonding strap assembly (key 117) to the valve drive shaft (key 20) with the clamp (key 116) and connect the other
end of the bonding strap assembly to the valve body with the mounting cap screw (key 25) as shown in figure 2.
Figure 2. Optional Shaft‐to‐Body Bonding Strap Assembly
GH02761
VALVE BODY
VIEW A-A
ACTUATOR
A
A
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection
and replacement depends upon the severity of service conditions.
WARNING
Avoid personal injury or equipment damage from sudden release of process pressure or uncontrolled movement of parts.
Before performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Do not loosen any pressure retaining bolting while the valve is still pressurized. This includes the body-to-tailpiece nuts
(key 18), packing box housing nuts (key 21), packing nuts (key 101) or pipe plug (keys 26).
D Avoid injury by keeping hands, tools, and other objects away from the ball while stroking the valve.
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. Check that the
actuator cannot suddenly open or close the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure, relieve any process
pressure from both sides of the valve body, and drain the process media from both sides of the valve.

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D Dual‐seal constructions can retain pressure and process fluid even after process pressure has been removed from both
sides of the valve. The ball should be partially opened to relieve this pressure before disassembling or removing the
valve from the line. Take additional care if the process fluid is hot, flammable, caustic, or hazardous.
D A tip over hazard exists for the valve/actuator assembly. Ensure the valve/actuator assembly is properly secured and
always supported to prevent falling or rolling which may cause injury or property damage.
D Use lock-out/tag-out best practices and procedures to be sure that the above measures stay in effect while you work on
the equipment.
D The valve packing box housing 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.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
Packing Maintenance
Refer to figure 3 for details of the standard PTFE V-ring packing (left) and the ENVIRO-SEAL packing system (right). All
maintenance operations in this section may be performed on an unpressurized valve that is still installed inline.
Note
For additional information on the ENVIRO-SEAL packing system refer to the ENVIRO-SEAL Packing System Instruction Manual
(D101643X012).
Stopping Leakage
For standard PTFE V-ring packing, leakage around the packing follower may be stopped by tightening the packing
follower nuts. If the packing is relatively new and tight on the drive shaft, and if tightening the packing follower nuts
does not stop the leakage, the drive 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 on the packing box housing
packing gland bore.
For ENVIRO-SEAL packing, optimal performance is obtained when the Belleville springs are compressed to the required
target load. The target load is the point where the springs are compressed to 85% of their maximum deflection.
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 nuts (key 101) per the following:
1. Tighten the packing flange nuts (key 101) alternately and evenly, keeping the packing flange parallel with the valve
flange (see figure 3), until the Belleville springs are compressed 100% (or completely flat).
a. For PTFE packing, loosen each packing flange nut one half turn (180°of rotation).
2. The target load of 85% compression has now been reached. If leakage continues, replace the packing components
and inspect the packing box housing, packing gland bore, and valve drive shaft for damage as described in the
following procedures.
Replacing Packing
Replacing the packing requires bleeding off the system and removing the actuator from the valve. Valve/actuator
adjustments cannot be made correctly without observing the fully open or closed position of the valve ball (key 3). It is
not necessary to remove the valve from the pipeline to make adjustments if care is taken to note the position and
alignment of the actuator lever and valve shaft and to not disturb the actuator turnbuckle position.

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Refer to figure 3 which identifies the V280 packing components by key number (also see the Parts List section of this
manual).
Figure 3. Packing Arrangement Details
STANDARD
PACKING ARRANGEMENT
ENVIRO-SEAL
PACKING ARRANGEMENT
DRIVE SHAFT
(KEY 20)
PACKING FLANGE
(KEY 102)
PACKING
FOLLOWER
(KEY 114)
TYPICAL PTFE
V-RING PACKING
SET (KEY 105)
PACKING BOX
RING (KEY 107)
PACKING STUD
AND NUT
(KEYS 100 AND 101)
TYPICAL
ENVIRO-SEAL
PTFE V-RING
PACKING SET
94BA02200-D
B2472-1
Packing Disassembly
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, shut off all pressure lines (or other power
source) to the power actuator, release pressure from the actuator, and disconnect the pressure lines from the
actuator. Use lockout/tagout procedures to be sure that the above measures stay in effect while disassembling the
equipment.
WARNING
D See the WARNING at the beginning of the Maintenance section for more information before removing the valve from
the pipeline.
D Use proper lifting and rigging practices while moving the valve or valve/actuator assembly.
2. Remove line bolting, remove the control valve from the pipeline, and place the actuator/valve assembly on a flat
surface.
3. To assist with future reassembly, note and mark the orientation of the actuator with respect to the valve body and
the actuator lever orientation with respect to the valve drive shaft.
4. Refer to the appropriate actuator instruction manual for information on removal.
CAUTION
When removing the actuator from the valve, do not use a hammer or similar tool to drive the lever or actuator off the valve
drive shaft (key 20). Driving the lever or actuator off the valve drive shaft could damage the ball, seals, and valve.

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If necessary, use a wheel puller to remove the lever or actuator from the valve drive shaft. Tap the wheel puller screw
lightly to loosen the lever or actuator. Do not hit the screw with excessive force. Using excessive force could damage the
ball, seal, and valve.
5. Loosen the actuator lever locking device cap screw. Loosening the lever turnbuckle adjustment is not necessary
during disassembly. When remounting the actuator, the turnbuckle will be used for actuator adjustments.
6. Remove the actuator mounting screws, bolts, or nuts while properly supporting the actuator and separate the
actuator and mounting bracket from the valve.
7. Slide the lever along the valve drive shaft (key 20) while removing the actuator from the valve.
8. If necessary, remove the bonding strap assembly, shown in figure 2 from the valve before removing the packing
parts.
9. Remove the packing follower nuts, packing flange, spring pack (only applicable to ENVIRO-SEAL), and packing
follower (keys 101, 102, and 114).
10. Remove the packing parts:
a. If the packing box housing (key 6) is mounted on the valve: Use a formed wire hook with a sharp end to pierce
the packing rings, and pull the rings out of the packing box housing. Do not scratch the drive shaft or packing
gland bore. Scratching these surfaces could cause leakage. Clean, inspect, and obtain replacement parts as
necessary for reassembly. Examine the drive shaft and packing gland bore for any signs of damage that may
prevent proper sealing.
b. If the packing box housing is separated from the valve (refer to Seal Ring Maintenance section of this manual for
disassembly instructions): Remove the drive shaft (key 20) from the packing box housing. With the drive shaft
removed, remove all internal packing parts. Clean, inspect, and obtain replacement parts as necessary for
reassembly. Examine the drive shaft and packing gland bore for any signs of damage that may prevent proper
sealing.
Note
Verify that the grounding ball is installed in the drive shaft-to-ball tang interface to guarantee electrical continuity between ball
trim and valve drive shaft.
The packing sets (key 105) listed in the parts list do not include any metal parts. Either clean and reuse metal packing
parts or obtain replacements by ordering them individually.
Packing Assembly
For additional information on the ENVIRO-SEAL packing system refer to the ENVIRO-SEAL Packing System Instruction
Manual (D101643X012).
If the packing housing box (key 6) is removed from the valve, use the valve assembly steps to reinstall the drive shaft
(key 4) and packing box housing assembly on the valve. (Refer to Seal Ring Maintenance section of this manual for
additional assembly instructions).
1. Place the new packing components over the valve drive shaft (key 20) and slide each into the packing box housing
until properly seated at the bottom of the packing gland bore. Use the parts sequence shown in figure 3 and verify
the correct configuration.
2. For standard packing arrangements, secure the packing follower and packing flange with packing nuts (keys 114,
102, and 101). Tighten the packing flange nuts alternately and evenly until leakage has stopped during operating

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conditions (only applicable to standard packing), keeping the packing flange parallel with the valve flange (see
figure 3).
3. If necessary, install the bonding strap assembly (keys 116 and 117) shown in figure 2.
4. Use the steps provided in the Actuator Mounting section to install the actuator on the valve. For actuator travel
adjustments, refer to the appropriate actuator instruction manual.
5. When the control valve is in operation, carefully examine the packing follower region for any signs of leakage.
Seal Ring Maintenance
WARNING
D See the WARNING at the beginning of the Maintenance section for more information before removing the valve from
the pipeline.
D Use proper lifting and rigging practices while moving the valve or valve/actuator assembly.
Valve Disassembly
Refer to figure 4 to identify the V280 valve components by key number.
Disassemble the valve only to the extent necessary to accomplish the needed inspection and repairs. For some repairs
complete disassembly of the valve is not necessary. Follow the disassembly procedures to the point necessary to
accomplish the repair, then skip to the appropriate assembly steps to complete the reassembly of the valve. Always
clean and protect sealing surfaces from damage.
Note
It is not necessary to remove the base bracket for maintenance.
Mark parts as necessary to allow them to be returned to the same position and orientation as removed. The tailpiece,
for instance, shall be returned to the same end of the valve from which it was removed. The seal assembly shall also be
returned to the same tailpiece and in the same orientation from which it was removed.
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, shut off all pressure lines to the power
actuator, release pressure from the actuator, and disconnect the pressure lines from the actuator. Use
lockout/tagout procedures to be sure that the above measures stay in effect while working on the equipment.
2. Remove line bolting, remove the control valve from the pipeline, and clean all valve surfaces. Place the
actuator/valve assembly on a flat working surface.
3. Mark parts as necessary to allow them to be returned to the same position during reassembly.
4. Refer to the appropriate actuator instruction manual for information on removal. Loosen the actuator mounting
screws, bolts, or nuts while properly supporting the actuator then separate the actuator and mounting bracket
from the valve. When valve maintenance is complete, refer to the Mounting Actuator procedure in this manual to
reinstall the actuator on the valve.

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5. Provide a clean soft working surface to protect the tailpiece‐flange serrated surface. Lift the valve and place it on
either tailpiece flange face. Be sure the valve is in a stable, upright position before releasing the hoist connection.
Note
If the packing (key 105) is in good condition, it is possible to remove and replace the seal assembly (key 5) without removing the
packing box housing assembly. However, the packing box housing assembly must be removed to remove the ball (key 3) from the
valve body.
6. Remove the packing box housing nuts (key 21).
7. Remove the packing box housing assembly from the valve. The assembly includes the drive shaft (key 20), O-ring
and back-up ring (keys 13 and 16), shaft bearing (key 7), shaft thrust washer (key 11), and all packing parts.
Note
Verify that the grounding ball is installed in the drive shaft-to-ball tang interface to guarantee electrical continuity between ball
(key 3) and valve drive shaft (key 20).
8. If it is desired to separate the packing box assembly parts, loosen or remove the packing components and slide the
shaft down and out the valve side of the packing box housing. Inspect the drive shaft bushing (key 7) and the thrust
washer (key 11). If necessary, replace worn components.
9. Remove the valve body nuts (key 18) from the studs (key 4) on the upper tailpiece and remove the tailpiece (key 2)
from the valve body (key 1).
CAUTION
While lifting the tailpiece (key 2) with seal (key 5) from the valve body (key 1), check to see if the seal (key 5) is lifting with
the tailpiece. If so, use caution in case the seal falls out and protect the ball and the body sealing surfaces. An additional
strap can be employed to ensure the seal is captured in the event it disengages from the tailpiece.
If the valve assembly is resting on the base bracket during disassembly, secure the valve when removing the tailpieces from
the body to prevent tipping.
10. Turn the tailpiece assembly over so the seal is facing up and place it on a clean soft surface to protect the flange
serrated surface.
11. Remove the seal (key 5) from the tailpiece by using the 1/4-20 UNC jack bolt tappings on the seal flange. This will
aid with disengaging the O-ring from the tailpiece seal gland. Be sure to not use any tools that could cause damage
to the sealing surface. Note the configuration of the seal O-ring (key 14) and back-up ring (key 15) and the wave
spring (key 17). Ensure the bearing plate (key 8) dowel pins (key 23) are accounted for.
12. If the tailpiece has an attenuator dome (key 24), place a flat head screw driver in the removal notch on the retaining
ring (key 28) and pry the retaining ring out of the groove. Once the removal notch end of the retaining ring is out of
the groove, pull up on the removal notch end to unseat the retaining ring from the groove. Be sure not to scratch
the O-ring sealing surface while performing this operation. Clean and protect all sealing surfaces.
WARNING
When lifting the ball, ensure the bearing plates (key 8) are secure on the ball trunnions to prevent parts from falling which
may cause personal injury or property damage.

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13. Turn the ball (key 3) to the closed position. Use an approved lifting sling through the ball bore to lift the ball out of
the valve body. Lift the ball and set it on a clean soft surface.
14. Remove the two bearing plates (key 8) and thrust washers (key 10) from the ball. Inspect the lined bushing (key 9)
in each bearing plate and the thrust washers. If necessary, replace worn components.
15. Evenly loosen the nuts (key 18) from the studs (key 4) on the lower tailpiece and lift the body (key 1) from the
tailpiece (key 2).
16. For dual seal constructions, repeat step 11.
17. For dual dome attenuator constructions, repeat step 12.
Valve Assembly
Be sure to replace valve parts in the same position and orientation from which they were removed. Use the following
steps to reassemble the valve.
Note
Clean and protect all sealing surfaces from damage while installing parts. Lubricate components when necessary as an aid for
installation, and to help protect sealing surfaces.
Refer to figure 4 that identifies the V280 valve components by key number.
During assembly, visually inspect component surfaces that interface with an O-ring or seal for any damage or foreign
material that may prevent proper sealing.
1. Place both tailpieces (key 2), flange end down on a clean soft surface with the seal assembly cavity facing up. Use
caution to protect the flange end serrated surfaces.
2. For all attenuator dome constructions, lubricate the tailpiece retaining ring groove, attenuator dome counterbore
surface, and the surface where the attenuator dome will rest against the tailpiece with an anti-seize lubricant (key
45). This will aid in the disassembly process.
3. For all attenuator dome constructions, install the grooved end of the groove pin (key 27) into the tailpiece as far as
it will go. Take care not to bend the pin. This groove pin will prevent the attenuator dome from rotating within the
tailpiece
4. Install the attenuator dome by aligning the pin hole in the attenuator dome with the groove pin (key 27) installed in
the bottom of the tailpiece.
5. Install the retaining ring (key 28) into the tailpiece by expanding the coils of the retaining ring and installing one end
into the groove. Hold the one end installed into the groove and press down around the perimeter of the retaining
ring in a winding fashion until the ring is fully seated into the groove. There should be audible indication of the ring
once it has fully seated in the groove. Take care to not damage the sealing surface of the tailpiece.
6. Lubricate (key 33) the tailpiece counterbore above the retaining ring groove where the seal will sit in the tailpiece.
7. On the seal (key 5), install the O-ring (key 14) and back-up ring (key 15) with the back-up ring towards the valve
body (see figure 4).
8. Install the wave spring (key 17) into the tailpiece.
9. Lubricate (key 33) the installed O-ring and back-up ring on the seal and insert the seal assembly into the tailpiece
counterbore. Maintain axial alignment of the two components as the seal assembly is drawn down into place.
Note
For single or dual characterized attenuator dome constructions, verify that the ball opens into the attenuator dome window(s)
last. If not, remove the attenuator dome and tailpiece and rotate 180°to allow the window(s) to open last.

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10. Lubricate (key 33) the half-dovetail groove on the tailpiece (key 2) and install the O‐rings (key 12) in both tailpieces.
11. If necessary, install the grooved end of the groove pins (key 23) into the bearing plate (key 8) as far as they will go.
12. Install new bushings (key 9) in the bearing plates (key 8) by aligning the split in the bushing towards the longer side
of the bearing plate (see figure 4).
WARNING
When lifting the ball, ensure the bearing plates (key 8) are secure on the ball trunnions to prevent parts from falling which
may cause personal injury or property damage.
13. Use an approved lifting sling through the ball bore to lift the ball (key 3). Orient the ball so the port and trunnions
are parallel with the ground.
14. Lubricate and install the thrust washers (key 10) and bearing plates on both ball trunnions.
15. Install the ball and bearing plates assembly onto the lower tailpiece. While lowering the ball, guide the groove pins
in the bearing plates into their proper location in the tailpiece pin holes.
16. Place the body (key 1) on an appropriate work surface.
17. Install the grooved end of the groove pins (key 22) into the body. Take care to not bend the pins during assembly.
18. If studs (keys 4) were removed from valve body during disassembly, apply anti-seize lubricant (key 45) to the
threads of the studs and holes and install in both sides of the body with the material identifier facing outward.
19. Lubricate (key 33) the tailpiece O-ring sealing surface of the body and lower the body over the ball and onto the
tailpiece, guiding the body over the ball and aligning the pin holes on the tailpiece with the groove pins (key 22)
installed in the body. Make sure that the body shaft bore is aligned to the same side as the tang slot on the ball.
20. Apply anti-seize lubricant (key 45) to the face and threads of the nuts (key 18). Install the nuts on the studs by hand
with the material identifier facing outward. Use an appropriate torque device to apply the final torque specification
(see table 3).
21. Repeat step 19 before installing the upper tailpiece.
22. Install the upper tailpiece from steps 1 through 10 over the studs (key 4) and pins (key 22) installed in the body.
23. Repeat step 20 once the upper tailpiece has been installed on the body.
24. Insert the drive shaft (key 20) through the body shaft bore to engage the shaft tang with the ball tang slot. Install
the shaft thrust washer (key 11) onto the shaft.
25. Install the drive shaft bushing (key 7) in the packing box housing from the end that engages the body.
26. Lubricate (key 33) and install the O-ring (key 13) and back-up ring (key 16) on the packing box housing.
27. Lubricate the packing box housing studs (key19) with an anti-seize lubricant (key 45) and install in the valve body.
28. After lubricating (key 33) the body shaft bore, position the packing box housing assembly over the drive shaft and
slide into place ensuring the O-ring (key 7) properly engages the body shaft bore. Make sure to orient the length of
the packing box housing perpendicular to the bore of the valve body (see figure 4).
29. Install the packing components as detailed in the Packing Maintenance section of this manual.
30. Apply anti-seize lubricant to the packing box housing nuts (key 21) and torque to the required specifications (see
table 3)
31. For keyed shafts, install the valve shaft key (key 38), flat washer (key 39) and hex head bolt (key 40). The purpose of
the washer and hex bolt is to prevent the key from migrating axially out of the keyway in-service.
32. If the base bracket was removed from the body during disassembly, place it on the body flats that correspond with
the desired shaft orientation (horizontal or vertical). Lubricate the two socket head cap screws with an anti-seize
lubricant (key 45), place a washer (key 41) over each screw, and install into the body. Torque to the required
specifications (see table 4).

Instruction Manual
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V280 Valve
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13
33. If the swivel hoist rings (key 35) were removed during disassembly, reinstall the two swivel hoist rings into the body
flats that correspond with the desired shaft orientation (horizontal or vertical). Do not lubricate the threads. Torque
to the required specifications (see table 4).
Table 3. Bolt Torque Specifications
VALVE SIZE, NPS CLASS FASTENER SIZE VALVE BODY HEAVY HEX NUT
TORQUE(1) FASTENER SIZE PACKING BOX HOUSING HEAVY HEX NUT TORQUE(1)
in N•m ft•lbf in N•m ft•lbf
6
900
1-1/4-8 990 730
3/4-10 271 200
8 1-3/8-8 1329 980
10 1-5/8-8 2235 1650
12 1-7/8-8 3470 2560 1-1/8-8 746 550
16 2-1/4-8 6090 4490
1. Fasteners must be lubricated to achieve proper preload.
Table 4. Required Base Bracket and Swivel Hoist Ring Torque Specifications
VALVE SIZE, NPS FASTENER SIZE, INCH VALVE BODY HEAVY HEX NUT TORQUE(1,2)
N•m ft•lbf
6
3/4-10 136 100
8
10
12 1-8 312 230
16
1. Base bracket fasteners must be lubricated to achieve proper preload.
2. Do not lubricate swivel hoist ring fasteners. If lubricated, consult your Emerson sales office for additional torque specifications.
Actuator Mounting
Use the appropriate actuator instruction manual for mounting the actuator or changing the actuator position. Attach
the actuator mounting bracket to the valve packing box and tighten the mounting bracket fasteners as detailed in
table 5.
Table 5. Required Actuator Mounting Bracket-to-Valve Bolt Torque Specifications
VALVE SIZE, NPS FASTENER SIZE, INCH SAE J429 GRADE 5/NCF3(1)
N•m ft•lbf
6 3/4-10 339 250
87/8-9 508 375
10
12 1-1/4-8 1490 1100
16
1. Fasteners must be lubricated to achieve proper preload.
Determining Closed Position
1. To confirm proper actuator adjustment visually check the position of the ball.
2. Adjust the actuator linkage or travel stops as described in the actuator instruction manual so that at the end of
stroke, the valve ball bore diameter in the full open (100%) position is in alignment and centered within the
upstream and downstream valve seal inside diameters. The actuator linkage or travel stops should be adjusted so
that the full closed (0%) valve position is precisely 90 degrees from the visually verified 100% open position. The
valve has a given dead band where the seal is in full contact with the ball, so if the valve position is not precisely 90
degrees from the visually verified 100% open position, leakage past the seal could occur.
3. For reference, two parallel lines are machined on the actuator mounting end of the valve drive shaft (key 20). The
lines represent the orientation of the valve ball bore. The ball is in the closed position when the two lines are
perpendicular to the pipeline bore.

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V280 Valve
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Parts Ordering
A serial number is assigned to each valve and stamped on the nameplate. Always refer to the valve serial number when
corresponding with your Emerson sales office regarding spare parts or technical information. When ordering
replacement parts, also specify the part name and desired material.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions 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.

Instruction Manual
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V280 Valve
August 2019
15
Figure 4. V280 Exploded View
GH01899
NOTE:
1. KEY NUMBERS 26, 30, 31, 32, 36, 37, 38, 39, 40, 42, 43, 44, 114, 116, 117 ARE NOT SHOWN
APPLY LUBRICANT
VIEW A
SCALE 1:2.5
VIEW A

Instruction Manual
D104425X012
V280 Valve
August 2019
16
Parts List
Note
Contact your Emerson sales office for Part Ordering information.
Key Description
1 Valve Body
If you need a valve body as a replacement part, order the
valve size, pressure rating, serial number, and desired
material.
2 Tailpiece
3 Ball
4 Valve Body Bolt
5* Seal
6 Packing Box Housing
7* Shaft Bearing
8 Bearing Plate
9* Trunnion Bearing (2 req'd)
10* Ball Thrust Washer (2 req'd)
11* Shaft Thrust Washer
12* Tailpiece O-Ring (2 req'd)
13* Packing Box House O-Ring
14* Seal O‐Ring (1 req'd for single, 2 req'd for dual-seal)
15* Seal Back-Up Ring (1 req'd for single, 2 req'd for dual-seal)
16* Packing Box Housing Back-Up Ring
17 Wave Spring (1 req'd for single, 2 req'd for dual-seal)
18 Valve Body Heavy Hex Nut
19 Packing Box Housing Bolt
20 Drive Shaft Assembly
21 Packing Box Housing Heavy Hex Nut
Key Description
22* Valve Body Groove Pin
23* Bearing Plate Groove Pin
24 Attenuator Dome
25 Actuator Mounting Cap Screw (4 req'd)
26 Hex Head Pipe Plug (not shown)
27* Attenuator Dome Groove Pin
28* Retaining Ring (1 req'd for single, 2 req'd for dual-seal)
29 Base Bracket
30 Nameplate (not shown)
31 Drive Screw (not shown)
32 Flow Direction Arrow (not shown)
33 Grease Lubricant
34 Socket Head Cap Screw (base bracket only)
35 Swivel Hoist Ring
36 Warning Tag (not shown)
37 Warning Tag Drive Screw (not shown)
38 Square Key (not shown)
39 Flat Washer (not shown)
40 Socket Head Cap Screw (not shown)
41 Flat Washer (base bracket only)
42 NACE Label (not shown)
43 NACE Label Drive Screw (not shown)
44 Thread Plug (not shown)
45 Anti-Seize Lubricant
100 Packing Stud (2 req'd for NPS 6-10, 4 req'd for NPS 12-16)
101 Packing Nut (2 req'd for NPS 6-10, 4 req'd for NPS 12-16)
102 Packing Flange
103 Spring Pack
105* Packing Set
ENVIRO-SEAL, PTFE/Carbon Filled PTFE
Standard, PTFE/Carbon Filled PTFE
106 Anti-Extrusion Ring
107 Packing Box Ring
114 Standard Packing Follower (not shown)
116 Clamp (not shown)
117 Ground Strap (not shown)
*Recommended spare parts
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
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