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D100422X012
Design V250 Ball Valve
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . .
Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Follower Shaft Seal 6. . . . . . . . . .
Replacing the Drive Shaft Seal 6. . . . . . . . . . . . .
Replacing Ball Seal or Flow Ring 7. . . . . . . . . . .
Removal 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of Single or Dual Ball Seal 8. . . . . .
Installation of Flow Ring 8. . . . . . . . . . . . . . . . . .
Installing Live-Loaded PTFE Packing 9. . . . . . . .
Replacing Drive Shaft, Follower Shaft Ball,
Bushings, and Valve Outlet Gasket 9. . . . . . .
Disassembly 9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting 14. . . . . . . . . . . . . . . . . . . . . . . .
Travel Adjustment 14. . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides installation,
maintenance, and parts ordering information for 4
through 24-inch Design V250 valves (figure 1) that
mate with ANSI flanges. Other instruction manuals
provide information covering the actuator and
accessories.
No person may install, operate, or maintain a Design
V250 valve without first D being fully trained and
qualified in valve, actuator, and accessory
installation, operation, and maintenance, and D
carefully reading and understanding the contents of
this manual. If you have any questions about these
instructions, contact your Fisher sales office before
proceeding.
Figure 1. Design V250 Ball Valve with
Type 1061 Actuator
W3698 / IL
Description
Design V250 Hi-Ballr valve is a flangeless rotary
control valve used for high pressure, throttling or
on-off control of liquid or gas applications (see figure
1). These valves operate on a rotary motion input
through a splined valve-shaft/actuator-shaft
connection for use with power or manual handwheel
actuators. The single seal, dual seal, and flow ring
constructions are covered in this instruction manual.
Note
Fisher does not assume responsibility
for the selection, use, or maintenance
of any product. Responsibility for
proper selection, use, and
maintenance of any Fisher product
remains solely with the purchaser and
end-user.
Instruction Manual
Form 5206
April 2004
V250 Valve
V250 Valve
Instruction Manual
Form 5206
April 2004
2
Table 1. Specifications
Valve Sizes and End Connection Styles
4 through 24-inch flangeless valves retained by
line flange bolts and designed to fit between ANSI
raised-face or ring-type joint flanges. See table 2
for valves that install between ANSI flanges
Maximum Inlet Pressure
(1)
Consistent with applicable pressure-temperature
ratings listed in table 2
Maximum Allowable Shutoff Pressure Drop
(1)(2)
Single-Seal and Dual-Seal Construction: 155
bar (2250 psi) at 38_C (100_F) and 103 bar (1500
psi) at 82_C (180_F) except where further limited
by the pressure-temperature rating of the valve
body
Flow Ring Construction: Limited by the
pressure-temperature rating of the valve body
Seal Material Temperature Capability
(1)
Single-Seal and Dual-Seal Construction:–46 to
82_C (–50 to 180_F) with LCC or stainless steel
valve bodies
Flow Ring Construction with Nitrile O-Rings:
–46 to 93_C (–50 to 200_F) with LCC steel and
stainless steel valve bodies
Flow Ring Construction with Fluoroelastomer
O-Rings: –46 to 204_C (–50 to 400_F) with LCC
steel and stainless steel valve bodies
Flow Characteristic
Modified equal percentage
Flow Direction
Forward Flow: Single seal construction is
standard for forward flow (see figure 4)
Bidirectional Flow: Flow ring construction can
be used for either forward or reverse flow (see
figure 5)
Bidirectional Shutoff: Dual seal construction is
required to provide shutoff for bidirectional flow
(see figure 12)
Shutoff Classification
Single Seal and Dual Seal Constructions:
0.0001% of maximum valve capacity (less than
1% of Class IV, ANSI/FCI 70-2)
Flow Ring Construction: 1% of maximum valve
capacity
Maximum Ball Rotation
90 degrees
Actuator Mounting
Right-hand or left-hand mounted as viewed from
the valve body inlet for forward flow
Approximate Weights
See table 3
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
2. Maximum allowable shutoff pressure drops are further limited for the following constructions. The 12-inch size with Nitronic 50 drive shaft is limited to 128 bar (1862 psi) from –46 to 59_C
(–50 to 139_F) and to 130 bar (1490 psi) at 93_C (200_F). The 16-inch size with 17-4PH steel, with 2.5 inch splined drive shaft is limited to 69 bar (1000 psi), and with the Nitronic 50, 2.5 inch
splined drive shaft is limited to 55 bar (795 psi) at all service temperatures. The 24-inch size with Nitronic 50 drive shaft is limited to 92 bar (1336 psi) at all service temperatures.
Table 2. ANSI Rating and Flange Compatibility
Valve Size,
Inches
Inlet Pressure
Capability
ANSI Flange
Compatibility
4
6
Consistent with
Class 600 or 900 raised
8
Consistent with
Class 600 or
Class 600 or 900 raised
face or ring-type joint
10
Class 600 or
900 (ASME B16.34)
face or ring-type joint
flange (ASME B16.5)
12
16
Class 600 raised face
20
Consistent with Class
Class 600 raised face
or ring-type joint flange
24
600 (ASME B16.34)
or ring-type joint flange
(ASME B16.5)
Table 3. Approximate Weights
VALVE SIZE,
WEIGHT
VALVE SIZE,
INCHES
Kilograms Pounds
4 73 160
6 132 290
8 222 490
10 345 760
12 431 950
16 771 1700
20 1814 4000
24 2404 5300
V250 Valve
Instruction Manual
Form 5206
April 2004
3
Installation
WARNING
Always wear protective gloves,
clothing, and eyewear when
performing any installation operations
to avoid personal injury.
To avoid personal injury or property
damage resulting from the sudden
release of pressure, do not install the
valve assembly where service
conditions could exceed the limits
given on the valve and actuator
nameplates. Use pressure-relieving
devices as required by accepted
industry, local, state, or federal 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.
1. If the valve will be placed in storage prior to
installation, protect the flanges and keep the inside
of the valve dry and clear of foreign material.
2. Install a three-valve bypass around the control
valve assembly if continuous operation will be
necessary during inspection and maintenance of the
valve.
3. Inspect the valve body for damage and be certain
that the valve body cavity is free of foreign material.
4. Be certain that adjacent pipelines are free of any
foreign material, such as pipe scale or welding slag,
that could damage the valve body seating surfaces.
5. A Design V250 valve is normally shipped as part
of a control valve assembly, with a power or manual
handwheel actuator mounted on the valve. If the
valve and actuator have been purchased separately
or if the actuator has been removed for
maintenance, mount the actuator according to the
actuator mounting procedure and adjust actuator
travel before inserting the valve into the pipeline.
This allows necessary measurements to be made
during the actuator adjustment process.
The actuator can be either right-or left-hand
mounted, as viewed from the valve body inlet, in any
of the positions shown in figure 10. Refer to the
Actuator Mounting procedure in this manual and to
the actuator instruction manual for mounting and
adjusting instructions before proceeding.
6. Before installing the valve, make sure the flow
through the valve matches the flow direction arrow
on the valve. Failure to do so can damage the seal
in a valve with a single seal construction.
D For bidirectional flow, install the valve so the
highest pressure flow matches the flow direction
arrow on the valve.
D Install the valve in a horizontal pipeline
with the
shaft positioned horizontally
and the ball closing in
the downward direction.
Note
Do not allow the valve to be installed
in the pipeline with the drive shaft in
the vertical position because of
excessive wear to component valve
parts.
CAUTION
To avoid damage to the ball sealing
surface, rotate the ball to the fully
open position before installing the
valve between the pipeline flanges.
7. With the ball in the fully open position, install line
flange gaskets and insert the valve between the
pipeline flanges. Use standard composition gaskets,
or other flat sheet gaskets compatible with the flow
media, between the valve and the pipeline flanges.
Spiral wound gaskets without compression
controlling centering rings are not recommended.
CAUTION
Uneven tightening of line bolts may
cause uneven wear of the ball surface,
leakage downstream or to atmosphere,
or uneven flange gasket alignment.
Tighten line bolts evenly when
installing the valve.
8. Center the valve in the line by making sure the
mating flanges are aligned. Secure the valve in the
line with the cap screws (keys 33 and 34, figures 11
and 12), line bolts (key 35, not shown), and hex nuts
(key 44, not shown). Required clearances for
installation of the line bolts and cap screws are
V250 Valve
Instruction Manual
Form 5206
April 2004
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shown in figure 2. When tightening the cap screws
and line bolts, use accepted bolting procedures.
Lubricate the studs or bolts and tighten the nuts in a
crisscross sequence to ensure proper alignment of
the valve with the flanges.
9. For hazardous atmosphere or oxygen service
valves, read the following WARNING, and perform
the instruction provided in the WARNING and
provide the bonding strap assembly mentioned in
Step 10 below if the valve is used in a hazardous
application.
WARNING
The Design V250 is not necessarily
grounded to the pipeline when
installed. If the process fluid or the
atmosphere around the valve is
flammable, personal injury or property
damage could result from an explosion
caused by a discharge of static
electricity from the valve components.
If the valve is installed in a hazardous
area, electrically bond the drive shaft
to the valve.
Note
The packing is composed of all
conductive packing rings (graphite
ribbon packing) to electrically bond
the shaft to the valve for hazardous
area service or non-conductive PTFE
packing rings. For oxygen service
applications, perform the following
step.
10. Attach the bonding strap assembly (key 41,
figure 3) to the shaft with the clamp (key 40, figure
3), and connect the other end of the bonding strap
assembly to the valve with the machine screw (key
43, figure 3).
11. Connect pressure lines to the actuator as
indicated in the actuator instruction manual. When a
manual actuator is used with a power actuator,
install a bypass valve on the power actuator (if not
already supplied) for use during manual operation.
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. Instructions
are presented in this section for replacing the shaft
seals, the ball seal or flow ring, the drive and
follower shafts, the ball and bushing, and the valve
outlet gasket.
Key number locations are shown in figure 11 for
single seal and flow ring constructions, and in figure
12 for dual seal constructions.
WARNING
Personal injury or property damage
can result due to a sudden release of
pressure or process fluid if the pipe
plug (key 42, figure 12) is removed
while the valve is pressurized. To
avoid such injury or damage, remove
the pipe plug only when the control
valve is isolated from the pressure
system, or provide a hand valve to
control relief of internal valve pressure
to avoid personal injury or property
damage.
A Design V250 valve with a dual seal construction
contains a pipe plug port (key 42, figure 12) on the
underside of the valve. This port can be used to
relieve internal valve pressure for testing seal
integrity when in the pipeline.
If the pipe plug port is to be used for testing seal
integrity when the valve is in the pipeline, the plug
should be replaced with a hand valve to allow
controlled relief of valve pressure during seal leak
rate testing.
WARNING
Avoid personal injury or damage to
property from sudden release of
pressure or uncontrolled process fluid.
Before starting disassembly:
D Always wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations to avoid personal injury.
V250 Valve
Instruction Manual
Form 5206
April 2004
5
VALVE
ANSI CLASS 600 BOLTING DIMENSIONS
VALVE
SIZE,
Raised Face Flanges Ring Type Joint Flanges
SIZE,
INCHES
P N M
(1)
P N M
(1)
mm
4 --- --- 343 --- --- 343
6 118 118 413 124 124 413
8 140 137 445 143 140 451
10 159 162 527 165 165 527
12 178 152 584 178 165 584
16 197 197 660 203 203 673
20 254 254 --- 254 254 --24 330 330 --- 343 343 ---
Inch
4 --- --- 13.50 --- --- 14.50
6 4.63 4.63 16.25 4.88 4.88 16.25
8 5.50 5.38 17.50 5.63 5.50 17.75
10 6.25 6.38 20.75 6.50 6.50 20.75
12 7.00 6.00 23.00 7.00 6.50 23.00
16 7.75 7.75 26.00 8.00 8.00 26.50
20 10.00 10.00 --- 10.00 10.00 --24 13.00 13.00 --- 13.50 13.50 ---
1. These bolts may be installed from either end of the valve.
VALVE
ANSI CLASS 900 BOLTING DIMENSIONS
VALVE
SIZE,
Raised Face Flanges Ring Type Joint Flanges
SIZE,
INCHES
P N M
(1)
P N M
(1)
mm
4 124 124 375 124 130 375
6 127 127 445 127 133 445
8 152 149 483 152 156 483
10 168 171 546 168 175 546
12 184 168 610 184 191 610
Inch
4 4.88 4.88 14.75 4.88 5.13 14.75
6 5.00 5.00 17.50 5.00 5.25 17.50
8 6.00 5.88 19.00 6.00 6.13 19.00
10 6.63 6.75 21.5 6.63 6.88 21.50
12 7.25 6.63 24 7.25 7.50 24.00
1. These bolts may be installed from either end of the valve.
39A1060-A
A3140-1/IL
Figure 2. Flange Bolt Lengths
V250 Valve
Instruction Manual
Form 5206
April 2004
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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 on both sides of the
valve. Drain the process media from
either side of the valve.
D For dual seal valve constructions,
remove pressure and drain the valve
interior by removing the pipe plug (key
42).
D Vent the power actuator loading
pressure.
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.
Replacing the Follower Shaft Seal
Both the follower and drive shaft seals should be
replaced at the same time. Key number locations are
shown in figure 11 or 12.
Perform this procedure if there is leakage around the
follower shaft (key 7). Such leakage is an indication
that the shaft seal, which includes the seal and a
backup ring, (key 16) must be replaced. The
following procedure may be performed with the valve
in the pipeline.
1. Isolate the control valve from the line pressure,
release pressure from both sides of valve, and drain
the process media from both sides of the valve. For
dual seal valve constructions, remove pressure and
drain the valve interior cavity. Shut off and
disconnect all lines from the power actuator.
WARNING
Refer to the WARNING at the
beginning of the Maintenance section
in this instruction manual.
2. Unscrew the hex nuts (key 8) and remove the
seal carrier (key 3) and shaft seal (key 16). Inspect
and clean all parts and sealing surfaces on the seal
carrier and follower shaft (key 7). Also, inspect and
replace the O-ring (key 23) if necessary.
3. Install the new backup ring and shaft seal in the
seal carrier.
4. Align the drive pin (key 28) with the drilled hole
on the inner surface of the seal carrier, replace the
seal carrier, and secure it with the hex nuts (key 8).
Be careful not to damage the shaft seal or O-ring
during replacement of the seal carrier.
Replacing the Drive Shaft Seal
Perform this procedure if there is leakage around the
drive shaft (key 6). Such leakage is an indication that
the shaft seal, which includes the seal and a backup
ring, (key 16) must be replaced. This procedure may
be performed with the valve in the pipeline.
However, the actuator must be removed from the
valve.
Note
The valve shaft’s packing surfaces are
critical in obtaining a good seal. If the
valve shafts are scratched, nicked or
worn, replace or repair the valve shaft
before installing the Live Loaded PTFE
Packing parts.
Both seal rings, drive end and follower
end, should be replaced at the same
time.
1. Isolate the control valve from the line pressure,
release pressure from both sides of valve, and drain
the process media from both sides of the valve. For
dual seal valve constructions, remove pressure and
drain the valve interior cavity. Shut off and
disconnect all lines from the power actuator.
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