Emerson Fisher Vee-Ball SS-84PSV4 User manual

www.Fisher.com
Fisher™Vee-Ball™SS-84PSV4
Rotary Control Valve
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 2.................................
Specifications 2...............................
Principle of Operation 2.........................
Installation 3
....................................
Lifting Guidelines 4............................
Maintenance 6
..................................
Packing Maintenance 6.........................
Replacing Packing 7........................
Packing Load Adjustment 12................
Replacing the Trim Parts 12.....................
Troubleshooting 15.............................
Actuator Mounting 15
............................
Determining Closed Position 15.................
Parts Ordering 16
................................
Spare Parts 17.................................
Parts List 16
.....................................
Figure 1. Fisher SS-84PSV4 Valve
with 1052PSV Actuator and 3610J Positioner
W9722
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts information for the Fisher Vee‐Ball
SS-84PSV4 NPS 4x3 and NPS 5x3 rotary control valve (see figure 1). It also outlines the assembly and testing
procedures for the NPS 4x3 CL2155 and NPS 5x3 CL2075 SS-84PSV4 rotary ball valve designed for use with the
1052PSV size 60 rotary actuator.
The SS-84PSV4 valve is the pressurizer spray valve for use in third generation PWR Nuclear Generating Stations. The
NPS 4x3 valve body has NPS 4 buttweld ends and the NPS 5x3 valve body has NPS 5 buttweld ends. Both valves have
3-inch Fisher Vee-Ball internal trim, which operates against a spring-loaded sleeve seal.
This valve contains several enhanced features compared to the original SS-84 designs which operated in previous PWR
Reactors. These features include the following:
D VeeBall, drive shaft, and actuator lever connections are a missing tooth spline design ensuring One-Way only
assembly.
D Side body flange allows trim removal without actuator removal.
Instruction Manual
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SS-84PSV4 Valve
September 2022

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Table 1. Specifications
Valve Sizes and End Connection Styles
SS-84PSV4: JNPS 4x3 valve with Schedule 120
buttweld ends JNPS 5x3 valve with Schedule 160
buttweld ends
Standard Flow Direction
Forward (into the convex face of the Vee‐ball)
Actuator Mounting
Right‐hand
Maximum Ball Rotation
Standard: Ball rotates counterclockwise to close
when viewed from actuator side of valve
Ball rotation is 80 degrees
Valve/Actuator Action
Push‐down‐to‐open (extending actuator rod opens
valve.) See actuator manual for details
1. The pressure/temperature limits in this manual, and any applicable code or standard limitation, should not be exceeded.
D Actuator closed position adjustment features an external alignment procedure without the need to position and
hold the VeeBall precisely centered in the sleeve seal.
D Integrated actuator turnbuckle adjustment feature to precisely position the VeeBall without any linkage
disconnects.
D Fisher live-loaded packing, with positive stop screws controlling Belleville deflection, ensures correct packing stress
which maximizes cycle life and prevents premature packing wear.
Do not install, operate, or maintain an SS-84PSV4 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 SS-84PSV4 Vee-Ball valve (figure 1) with a V‐notch ball is used in throttling or on‐off service. The SS-84PSV4 valve
is either a NPS 4 schedule 120 buttweld construction or a NPS 5 schedule 160 buttweld construction. The splined valve
shaft of this valve connects to a variety of rotary‐shaft actuators.
Specifications
Specifications for these valves are shown in table 1.
Principle of Operation
The Vee-Ball and machined body combine to create smoothly transitioning flow geometry which enables efficient flow
through the valve. The drive shaft and follower shaft center the ball in the flow stream to minimize dynamic torque
and permit easy ball rotation.
The ball rotates clockwise out of the sleeve seal to a standard open rotation of 80 degrees. In the closed position, the
sleeve seal is spring loaded against the ball to create an effective seal. The drive linkage between the ball and shaft has
been designed for minimal lost motion using a “spline connection” on the shaft and ball.

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Installation
When welding buttweld end valves in line, it is recommended to remove the control valve trim in order to prevent
damage to trim parts. If the trim cannot be removed, the valve should be left in the fully open position. Key numbers in
installation procedures are shown in figure 8 unless otherwise indicated.
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 either the valve body rating or the mating pipe flange joint rating. To avoid such
injury or damage, provide a relief valve for overpressure 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.
WARNING
The valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop,
and controlled fluid conditions indicated when the valve was ordered. Responsibility for the safety of process media and
compatibility of valve materials with process media rests solely with the purchaser and end‐user. To avoid possible personal
injury and because some valve/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.
The valve drive shaft is not necessarily grounded to the pipeline when installed. Personal injury or property damage could
result from an explosion caused by a discharge of static electricity from valve components if the process fluid or the
atmosphere around the valve is flammable. If the atmosphere around the valve or the process fluid is flammable,
electrically bond the drive shaft to the valve.
Note
Standard graphite packing is composed of all conductive graphite ribbon packing. Alternate shaft‐to‐valve body bonding is
available for hazardous service areas where the standard packing is not sufficient to bond the shaft to the valve (see the following
step).
1. If the valve is to be stored before installation, protect the buttweld ends and keep the valve body cavity dry and free
of foreign material.
2. The valve is normally shipped as part of a control valve assembly, with an actuator mounted on the valve. If the
valve and actuator have been purchased separately or if the actuator has been removed, mount the actuator
according to the Actuator Mounting section and the appropriate actuator instruction manual.
3. Standard flow direction is forward flow, spherical face of the ball is upstream.
4. Install the valve in a horizontal pipeline with the drive shaft in the horizontal position.
NOTICE
Do not allow the valve to be installed in the pipeline with the drive shaft in the vertical position because of excessive wear
to valve component parts.

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5. The actuator is right‐hand mounted with the shaft in a horizontal orientation as shown in figure 1. If necessary, refer
to the appropriate actuator instruction manual for actuator installation and adjustment procedures.
NOTICE
Ensure the valve and adjacent pipelines are free of foreign material that could damage the valve seating surfaces.
6. Be certain the valve and adjacent pipelines are free of any foreign material that could damage the valve sealing
surfaces.
7. Be sure the pipelines are in line with each other.
8. Use accepted pipeline piping and welding practices when installing the valve in the pipeline.
9. Connect pressure lines to the actuator as indicated in the actuator instruction manual. When an auxiliary manual
actuator is used with a power actuator, install a bypass valve on the power actuator (if one is not supplied) for use
during manual operation.
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. Read and follow the packing adjustment procedures
in the Packing Maintenance section of this manual and check with your process or safety engineer for any additional
measures that must be taken to protect against process media.
10. Verify that gap “A”, in figure 7, is closed before pressurizing the pipeline.
Lifting Guidelines
WARNING
Failure to follow these lifting guidelines and accepted lifting and rigging practices could result in property damage and
personal injury or death.
All lifting and rigging must be completed in accordance with federal/national/provincial, state, and local regulations and
applicable lifting and rigging equipment standards. Only personnel trained in proper lifting and rigging practices shall
perform valve/actuator assembly lifting, rigging, and installation. Because each lift will be unique, the method of lifting the
valve assembly, the correct location for attaching and lifting the valve assembly, and what the valve assembly will do when
lifted shall be considered for each lift.
Lifting and rigging equipment used to lift, install, or remove a valve assembly or component must be properly selected and
sized for the weight and configuration of the valve assembly or component being lifted. The weight of the complete valve
assembly, including attached accessories, must be taken in consideration for this purpose. The lifting and rigging
equipment must be properly maintained and inspected for damage before each use.
If the valve is supplied with an actuator or handwheel, do not use the actuator or handwheel to lift the complete valve
assembly. Lifting lugs attached to the actuator must not be used to lift the complete valve assembly unless clearly marked
as being rated to support the complete valve assembly weight.
Lifting lugs or other lifting equipment attached to the valve or actuator must never be used to lift or support the weight of
attached piping.

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NOTICE
Care must be taken when lifting the valve/actuator assembly to ensure the accessories and tubing are not damaged in the
process. Accessories and tubing may need to be removed prior to lifting to prevent damage and properly reinstalled before
use. Protect valve flange faces, butt weld ends, and other connection surfaces from damage during lifting.
The quantity of eyebolts for lifting purpose is the minimum recommendation. More eyebolts can be used per customer
experience. When tightening the eyebolts and nuts, do not exceed the torque that is specified in the following section, to
avoid damage on the diaphragm.
Figure 2. Lifting Guidelines
VALVE/ACTUATOR ASSEMBLY VALVE ONLY ACTUATOR ONLY
W100061 W100062 W100063
Lifting Valve/Actuator Assembly
To lift the assembly, insert 3/4-10 thread size hoist rings into the two tapped holes on the top of the valve body. These
two tapped holes will carry most of the weight, but the assembly must be balanced using one or more straps on the
1052PSV casing as shown in figure 2. The ends of the strap(s) will be positioned underneath two L-shaped flanges or
through eyebolts. Figure 2 shows L-shaped flanges attached to the casings. An alternative casing lift method is to use
3/8 inch eyebolts positioned 180 degrees apart. Use protective pads between the strap(s) and the casing to help
prevent damage to the painted surface. Torque the 3/8-24 cap screws or eyebolts and nuts to 20 lbf•-ft. The assembly
can now be lifted using a hoist capable of leveling these lifting points.

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Lifting Valve Only
To lift the valve, insert 3/4-10 thread size hoist rings into the two tapped holes on the top of the valve body. These two
tapped holes will carry most of the weight, but the assembly must be balanced using one or more straps underneath
the valve bottom flange (key 5), as shown in figure 2. The assembly can now be lifted using a hoist capable of leveling
the 3 lifting points.
Lifting Actuator Only
The actuator with accessories shall be lifted by the casing flange as shown in figure 2. Figure 2 shows L-shaped flanges
attached to the casings. An alternative casing lift method is to use 3/8 inch eyebolts positioned 180 degrees apart. Use
protective pads between the strap(s) and the casing to help prevent damage to the painted surface.
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.
Key numbers in this procedure are shown in figure 8, unless otherwise noted.
WARNING
The Vee‐ball closes with a shearing, cutting motion, which could result in personal injury. To avoid injury, keep hands, tools,
and other objects away from the Vee‐ball while stroking the valve.
Avoid personal injury or damage to property from sudden release of process pressure or uncontrolled process fluid. Before
performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
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 Always wear protective gloves, clothing, and eyewear when performing any maintenance operations.
D The valve packing area 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
Key numbers in this procedure are shown in figure 8, unless otherwise noted. A detailed view of the packing is also
shown in figure 7.
Refer to the Parts List section of this manual for individual parts.
If the packing is relatively new and tight on the drive shaft (key 9), and if tightening the packing nuts (key 27) does not
stop leakage, it is possible that the drive shaft is worn or nicked so that a seal cannot be made. If the leakage comes
from the outside diameter of the packing, it is possible that the leakage is caused by nicks or scratches on the packing
box wall. Inspect the drive shaft and packing box wall for nicks or scratches while performing the following procedure.

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Replacing Packing
Disassembly
WARNING
Observe the steps in the WARNING at the beginning of the Maintenance section.
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, release pressure from the actuator and
disconnect the pressure lines from the actuator. Use lock-out procedures to be sure that the above measures stay in
effect while you are working on the equipment.
2. Remove the actuator cover (key 33 from the Fisher 1052PSV Size 60 Rotary Actuator Instruction Manual
(D103407X012)).
WARNING
When the actuator is removed from the valve, the ball/shaft assembly may suddenly rotate, with a shearing, cutting
motion, which could result in personal injury. To avoid injury, carefully rotate the ball to a stable position after the actuator
is removed.
NOTICE
When removing the actuator from the valve, do not use a hammer or similar tool to drive the lever or actuator off the valve
shaft. Driving the lever or actuator off the valve shaft could damage the ball, seal, and valve.
If necessary, use a puller to remove the lever or actuator from the valve shaft. It is okay to tap the puller screw lightly to
loosen lever or actuator, but hitting the screw with excessive force could damage the ball, seal, and valve.
3. Remove the clamped lever (do not loosen the actuator turnbuckle adjustment), and remove the actuator mounting
fasteners. (If necessary, refer to the Fisher 1052PSV Size 60 Rotary Actuator Instruction Manual (D103407X012) for
assistance.
WARNING
Personal injury could result from packing leakage. Do not scratch the drive shaft or packing box wall while removing
packing parts in the following procedure.
Note
Do not change the position of the stop cap screws and nuts (key 17, 19, and 18) in the following step.
4. Remove the live-loaded packing parts (see figure 7, keys 27, 26, 160, 16, and 25)
5. Remove the hex nuts (key 14) and bottom flange (key 5). The bushing (key 7) should come out with the bottom
flange, otherwise remove the bushing now.
6. After removal of the spiral wound gasket (key 11), inspect the sealing surfaces on the bottom flange and the valve
body.

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7. Rotate the VeeBall counterclockwise (ccw) 180_out of the closed position. This can be accomplished using the
following method:
a. Use the actuator lever and rotate the drive shaft (key 9) by hand.
b. Use a 7/8 inch hex socket wrench and rotate the Vee-Ball assembly (key 2) by the flats on the follower shaft.
8. Remove the Vee-Ball assembly from the valve body, taking care not to damage the sealing surface of the ball.
9. Remove the drive shaft/collar assembly, bushing, and thrust washer (keys 9, 7, and 8) from the valve body. If
needed, use a rubber mallet or blunt tool to tap the drive shaft out from the actuator end of the valve body. Take
care not to damage the drive shaft spline.
10. With the trim parts removed, use packing removal tools to pull the metal packing box rings and packing set
(keys 154 and 15) out of the packing bore of the valve body.
11. Do not scratch the packing box wall; scratching this surface could cause leakage. Clean all accessible surfaces of the
packing box to remove particles that would prevent the packing from sealing.
Figure 3. Drive Shaft, Collar, Bearing, Vee-Ball Assembly
Figure 4. Drive Train Inserted into the Valve Body 145-180 Degrees Out of Seat

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Assembly
If needed, refer to the appropriate sections of the Fisher 1052PSV Size 60 Rotary Actuator Instruction Manual
(D103407X012) to connect the valve to the actuator and assemble the actuator.
Refer to figure 5 for key number locations during seal installation. Valve key number locations are shown in figure 8.
1. Thoroughly clean all parts that are to be re‐used and obtain replacement parts. Be sure that all sealing surfaces are
in good condition without scratches or wear.
2. Clean the valve body, removing burrs and debris. Inspect the packing box bore, sleeve seal bore, and bearing bore
ensuring there is no rust or corrosion. Inspect the spiral wound gasket groove for nicks or defects.
3. Inspect the sleeve seal (key 20), piston ring area, and the radius seat for scratches or defects.
4. Install the wave spring (key 21) against the sleeve seal (key 20) flange with the gap against the sleeve seal flange.
See figure 5.
Figure 5. Sleeve Seal Assembly Figure 6. Bolting Sequence
5. Install the carbon piston ring (key 22) onto the sleeve seal (key 20).
6. Install the sleeve seal assembly in the valve body through the bottom flange hole.
7. Install the thrust washer (key 8) on the drive shaft / thrust collar / pin assembly (key 9). Locate the thrust washer on
the actuator side of the thrust collar in figure 3.
8. Install a journal bushing (key 7) on the drive shaft / thrust collar / pin assembly (key 9) on the side next to the
VeeBall splined connection end. Note: Place the smaller OD end next to the thrust collar (see figure 3).
9. Install the Vee-Ball assembly (key 2) on the drive shaft (key 9). Note: The splined connection is missing a tooth
allowing One-Way assembly.
10. Make sure the sleeve seal assembly has remained all the way in the valve body and that the wave spring is still
engaged with the valve body. Orient the Vee-Ball and shaft assembly (see figure 4) with the Vee-Ball positioned 180
degrees out of the sleeve seal seat (key 20). Install into the valve body through the bottom flange hole. Use care to
avoid any scratches to the drive shaft as it slips through the bottom of the packing box area in the valve body.
11. The outer end of the Vee-Ball follower shaft has a 7/8 inch hex. Use a 7/8 inch socket to assist rotating the Vee-Ball
into the sleeve seal seat. With the ball and shaft assembly held tightly against the thrust washer (key 8), rotate the
Vee-Ball clockwise (cw as viewed from the bottom flange side of the valve body) allowing the vee contour to start to
engage the sleeve seal seat.

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NOTICE
In the following step, if the Vee-Ball is accidentally rotated too far, allowing a gap from the trailing edge of the Vee-Ball, DO
NOT rotate counter clockwise (ccw) back into the seat. Continue to rotate around clockwise (cw) and repeat step 15.
12. Visually rotate the Vee-Ball to the closed position until it is centered in the seat. Final closed position will be
accomplished using the Precise Valve/Actuator Closed Position Adjustment procedure in the Fisher 1052PSV Size
60 Rotary Actuator Instruction Manual (D103407X012).
13. During the remaining body assembly procedures care should be taken to keep the Vee-Ball in the closed position.
Note: The Vee-Ball open position is restricted to 80 degree rotation from the closed position so the vee-notch
contour on the Vee-Ball will retain the sleeve seal package in place.
14. Install a journal bushing (key 7) into the bottom flange (key 5). The small OD end of the bushing is placed toward
the bottom flange.
Figure 7. Positive Stop Packing Loading Method
15. Install the spiral wound gasket (key 11) in the groove on the valve body (key 1).
16. Coat the twelve 7/8-9 x 5.25 bottom flange studs (key 3) with nuclear grade anti-seize lubricant up to the deformed
thread. Thread the studs into the valve body (key 1) until hitting the deformed thread.
17. Install the bottom flange and bushing over the Vee-Ball follower shaft and tightly against the spiral wound gasket.
Note: The Vee-Ball / Follower shaft assembly may be slightly off center due to the wave spring loading, but will
self-center.