Emerson Fisher POSI-SEAL A11 Instruction Manual
Instruction Manual
Form 5338
February 2007
A11 Valve
Type A11 High Performance Butterfly Valve
Introduction 1...............................
Scope of Manual 1..........................
Description 1...............................
Specifications 3............................
Installation 3................................
Adjusting the Travel Stops 3.................
Preparing for Installation 4...................
Valve Orientation 4.........................
Installing the Valve 6........................
Thrust Washers 7.........................
Packing Adjustment and Shaft Bonding 7......
Maintenance 8..............................
Removing the Valve 9.......................
Packing Maintenance 9......................
Lantern Rings 10..........................
Lubrication Fittings and Purge Connectors 10.
Seal Maintenance 10........................
Soft Seal Installation 11....................
Metal and Phoenix III Seal Installation 11.....
Cryogenic Seal Installation 13...............
Valve Shaft/Disc Pin Unit Maintenance 13......
Gasket Retainer 15.........................
Bearing Maintenance 15.....................
Parts Ordering 16............................
Parts List 17................................
Figure 1. Type A11 Valve
and understanding the contents of this manual. If
you have any questions about these instructions,
contact your Emerson Process Management sales
office before proceeding.
W4641-1/IL
W4642-1/IL
Introduction
Scope of Manual
This instruction manual includes installation,
maintenance, and parts information for Type A11
High Performance Butterfly Valves (figure 1) in Class
150, 300, and 600. For Class 900 and 1500 valves,
contact your Emerson Process Managementt sales
office.
For information about the actuator and accessories,
please refer to the separate instruction manuals for
these items.
Do not install, operate, or maintain a Type A11 valve
without first D being fully trained and qualified in
valve, actuator, and accessory installation,
operation, and maintenance, and D carefully reading
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use and maintenance of any
product. Responsibility for the
selection, use, and maintenance of any
product remains with the purchaser
and end-user.
Description
Type A11 High Performance Butterfly Valves are
available in either a flangeless wafer or a single
flange design, with a variety of seal, valve body, and
internal components. These valves feature a
dynamic sealing design that is used in a variety of
demanding applications.
www.Fisher.com
D500073X012
A11 Valve
Instruction Manual
Form 5338
February 2007
Table 1. Specifications
Available Configurations
Valve Sizes
Class 150 and 300: Size J 30, J 36, J 42 and
J 48-inch
Class 600: Size J 3, J 4, J 6, J 8, J 10,
J 12, J 14, J 16, J 18, J 20 and J 24-inch
Valve Body: Wafer-style and single-flange style
in Class J 150/150, J 150, J 300, J 600,
J 900 and J 1500
Maximum Inlet Pressure
Consistent with applicable ASME class
pressure/temperature ratings per ASME B16.34
unless such ratings are limited by material
temperature capabilities.
Construction Materials
Refer to Bulletin 21.1:A11
Disc Rotation
Clockwise (CW) to close
Valve Body Classification
Face-to-face dimensions for Type A11 valve is in
compliance with MSS SP-68 and API 609
standards.
Valve bodies are designed for installation
between standard pipe flanges: for 3 inch through
24-inch sizes (ASME B16.5); for sizes greater
than 24-inch (MSS SP-44 or API 605) as specified
on valve order
Seal Temperature Capabilities
PTFE (Standard) Seal: For application ranges
from 62 to 232_C (80 to 450_F)
Phoenix III Seal: For application ranges from
73 to 232_C (100 to 450_F)
High-Temperature Seals:
Standard: Metal or NOVEX to 820_C (1500_F)
Optional: 174PH H1150M to 454_C (850_F)
Cryogenic Seals:
CTFE: 254 to 149_C (425 to 300_F)
NOVEX: 254 to 260_C (425 to 500_F)
Approximate Weights
See tables 2 and 3
Actuator Types Available
J Locking-lever manual actuators, J worm-gear
manual actuators, J spring-return pneumatic
actuators, J double-acting pneumatic actuators,
and J electric actuators
ENVIRO-SEALr Packing
This optional
J PTFE or J graphite packing
system provides improved sealing, guiding, and
transmission of loading force to control liquid and
gas emissions (see figure 7). See Bulletin
59.3:041 ENVIRO-SEAL Packing Systems for
Rotary Valves for more information. Consult
factory for larger sizes; they may require a special
valve body.
Table 2. Approximate Weight for Size 30 through 72-Inch Valves
VALVE SIZE,
INCHES
30
36
42
48
54
60
66
72
30
36
42
48
54
60
66
72
1. Consult your Emerson Process Management sales office for information.
2
CLASS 150 CLASS 150/150 CLASS 300
Wafer Single Flange Wafer Single Flange Wafer Single Flange
528
806
1302
1904
2197
(1)
(1)
(1)
1164
1778
2871
4198
4844
(1)
(1)
(1)
736
1120
1550
2248
2790
(1)
(1)
(1)
1623
2470
3418
4955
6151
(1)
(1)
(1)
kg
365
626
1100
1604
2150
2417
3903
(1)
lbs
805
1380
2425
3537
4747
5329
8604
(1)
525
897
1328
1907
2893
3267
5117
(1)
1157
1978
2928
4204
6379
7203
11,282
(1)
952
1315
2263
3056
2100
2900
4989
6737
1406
1989
2726
4177
3100
4385
6009
9209
Instruction Manual
Form 5338
February 2007
A11 Valve
Table 3 Approximate Weight for Size 3 through 24-Inch
VALVE
SIZE
3
4
6
8
10
12
14
16
18
20
24
3
4
6
8
10
12
14
16
18
20
24
Valves
CLASS 600
Wafer Style Single Flange
kg
9
10
25
52
113
153
186
274
361
526
669
lbs
20
23
54
115
249
337
410
605
796
1160
1475
15
24
48
83
163
209
254
349
481
671
880
32
52
106
183
360
460
560
770
1060
1480
1940
Specifications
Specifications are shown in table 1 and the
specifications for a given valve are stamped on a
nameplate attached to the valve.
Note
When installing a valve after it has
been in long-term storage, cycle the
valve at least ten times to re-energize
the dynamic seal.
Please contact your Emerson Process Management
sales office if you have any questions about
preparing a valve for storage or if you are planning
to put into service a valve that has been stored for
some time.
Adjusting the Travel Stops
CAUTION
When using manual or power
actuators, adjust the actuator travel
stops so the disc stop in the valve
body does not absorb the output of
the actuator.
For actuators without travel stops, the
actuator must be properly mounted to
prevent it from driving the valve disc
against the valve disc travel stop.
Failure to limit actuator travel as
described in this section can result in
damage to the valve shafts or other
valve parts.
Installation
WARNING
Always wear protective gloves,
clothing, and eyewear when
performing any installation operations
to avoid personal injury.
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.
Note
An ”S” is visible on both the valve
shaft and valve body. When the valve
disc is closed, the ”S” on the shaft
aligns with the ”S” on the valve body.
1. Locate the actuator travel stop that establishes
the closed position of the valve disc. When adjusting
the travel stop make sure that the disc is from 0 to
0.76 mm (0 to 0.030 inch ) away from the internal
stop in the valve body. This adjustment is necessary
to be certain that the actuator output torque is fully
absorbed by the actuator travel stop rather than the
stop in the valve body.
For actuators without travel stops, the actuator must
be properly mounted to prevent it from driving the
valve disc against the valve disc travel stop.
3
A11 Valve
Instruction Manual
Form 5338
February 2007
1. To mount an actuator without travel stops, first, if
necessary, remove the actuator from the valve.
Then, position the valve disc from 0 to 0.76 mm (0 to
0.030 inch) away from the internal stop in the valve
body.
2. Now, travel the actuator to the maximum position.
Keep the actuator in the maximum travel position.
Return the actuator to the valve, taking care not to
disturb the position of the valve disc.
3. Mount the actuator on the valve using proper
bolts with locking washers to achieve a secure fit.
4. Before installing the valve/actuator assembly in
the process line, cycle the valve several times to be
sure the valve disc returns to the proper position.
Preparing for Installation
WARNING
If the Type A11 valve is equipped with
a fail-open actuator, remove the
actuator before installing the
valve/actuator assembly or cycle the
valve into the fully closed position.
Then, to avoid possible personal injury
or property damage, take appropriate
steps to ensure that the actuator does
not cause the valve to open during
installation.
1. If the valve and actuator have been purchased
separately or if the actuator has been removed for
storage, travel stop adjustment, or maintenance,
mount the actuator before inserting the
valve/actuator assembly into the line. Refer to the
actuator instruction manual for mounting and
adjustment procedures.
CAUTION
pipe scale or welding slag that could damage the
valve seating surfaces.
WARNING
The Type A11 valve is designed for
use with the appropriate piping
schedule for the ASME class.
However, before putting the valve into
operation, measure carefully to ensure
disc rotation without interference from
piping or flanges. Be certain to center
the valve accurately to prevent
interference of the disc with the
flanges.
D The edges of a rotating disc have
a shearing effect that may result in
personal injury. To help prevent such
injuries, stay clear of the disc edges
when rotating the disc.
D Damage to the disc will occur if
any pipe flanges or piping connected
to the valve interfere with the disc
rotation path. If the piping flange has a
smaller inner diameter than specified
for schedule 80 piping, measure
carefully to be certain the disc rotates
without interference before putting the
valve into operation.
3. Select the appropriate gaskets for the application.
flexible graphite, spiral wound, or other gasket types,
made to ASME B16.5 group or user’s standard, can
be used on Type A11 valves depending on the
service conditions of the application. Note: spiral
wound gaskets, when properly centered, will cover
more than 60 percent of the gasket area at the
retaining ring screws.
For metal-seated and cryogenic valve gasket
recommendations, please contact your Emerson
Process Management sales office.
To avoid product damage, inspect the
valve before installation for any
damage or any foreign material that
may have collected in the valve body.
Also remove any pipe scale, welding
slag, or other foreign material from the
pipeline.
2. Remove the protective end covers from the valve
and inspect the valve body to be certain that it is free
of foreign material. Also, be certain that adjacent
pipelines are free of any foreign material, such as
4
4. Refer to the appropriate table for the quantity and
size of flange bolts required (table 4 or 5) and
proceed with the following instructions.
Valve Orientation
Type A11 valve bodies are designed for installation
with the shaft in any orientation around the pipeline:
horizontal, vertical, or at an angle. However, when
installing a Type A11 valve, please follow these
recommendations.
Instruction Manual
Form 5338
February 2007
Table 4. Stud Bolt and Cap Screw Data for Wafer Style Valves
Class 150 & Class 150/150
VALVE SIZE, INCHES 30 36 42 48
Number of Stud Bolts 24 28 32 40
Number of Cap Screws 8 8 8 8
Size-Diameter Inch Thread 1-1/4 8 1-1/2 8 1-1/2 8 1-1/2 8
A-Length of Stud Bolts, Inch 15-1/2 18 20-3/4 22-3/4
B-Length of Cap Screw, Inch 4-1/2 5-1/4 6 6-1/2
Class 300
VALVE SIZE, INCHES 30 36 42 48
Number of Stud Bolts 24 28 28 28
Number of Cap Screws 8 8 8 8
Size-Diameter Inch Thread 1-3/4 8 2 8 1-5/8 8 1-7/8 8
A-Length of Stud Bolts, Inch 21-1/2 24-1/4 26 32
B-Length of Cap Screw, Inch 5-3/4 6-1/2 7-1/4 8
Class 600
VALVE SIZE, INCHES 3 4 6 8 10 12
Number of Stud Bolts 8 8 12 12 12 16
Number of Cap Screws 8 8
Size-Diameter Inch Thread 3/4 10 7/8 9 1 8 1-1/8 8 1-1/4 8 1-1/4 8
A-Length of Stud Bolts, Inch 7-1/4 8-1/2 10 11-1/2 13-1/2 14-3/4
B-Length of Cap Screw, Inch 4-1/4 4-1/2
VALVE SIZE, INCHES 14 16 18 20 24
Number of Stud Bolts 15 16 16 20 20
Number of Cap Screws 8 8 8 8 8
Size-Diameter Inch Thread 1-3/8 8 1-1/2 8 1-5/8 8 1-5/8 8 1-7/8 8
A-Length of Stud Bolts, Inch 16 17-1/2 19 20-3/4 22-1/4
B-Length of Cap Screw, Inch 4-1/2 5 5-1/2 5-3/4 6-1/4
A11 Valve
Table 5. Stud Bolt and Cap Screw Data for Single Flange Style Valves
Class 150 & Class 150/150
VALVE SIZE, INCHES 30 36 42 48
Number of Cap Screws 56 64 72 88
Size-Diameter Inch Thread 1-1/4 8 1-1/2 8 1-1/2 8 1-1/2 8
B-Length of Cap Screw, Inch 4-1/2 5-1/4 6-1/4 6-1/2
Class 300
VALVE SIZE, INCHES 30 36 42 48
Number of Cap Screws 56 64 64 64
Size-Diameter Inch Thread 1-3/4 8 2 8 1-5/8 8 1-7/8 8
B-Length of Cap Screw, Inch 5-3/4 6-1/2 6 8-1/4
Class 600
VALVE SIZE, INCHES 3 4 6 8 10 12
Number of Cap Screws 16 16 24 24 32 40
Size-Diameter Inch Thread 3/4 10 7/8 9 1 8 1-1/8 8 1-1/4 8 1-1/4 8
B-Length of Cap Screw, Inch 2-1/2 3 3-1/2 4 4-1/4 4-1/2
VALVE SIZE, INCHES 14 16 18 20 24
Number of Cap Screws 40 40 40 48 48
Size-Diameter Inch Thread 1-3/8 8 1-1/2 8 1-5/8 8 1-5/8 8 1-7/8 8
B-Length of Cap Screw, Inch 4-1/2 5 5-1/2 5-3/4 6-1/4
5
A11 Valve
E0179 / IL
Figure 2. View of Stud Bolts
D In certain services (process fluids with high
concentrations of entrained solids, abrasive slurries,
or polymerizing media), valve performance will be
enhanced by installing the valve with the shaft
horizontal to the pipeline.
D Valves supplied for unidirectional shutoff should
be installed with the high pressure at the back
(waterway side) of the disc. A flow tag with an arrow
is provided for proper installation.
The High Performance Butterfly Valve is designed to
allow flow in either direction when in the open
position. When in the closed position, high pressure
should be applied to a specific side of the disc to
provide best performance and optimal service life.
D Valves supplied for bidirectional shutoff, such
as soft or Phoenix III, under normal operating
conditions can (at different times) experience
pressure in both directions; the highest of the two
pressures should be exerted on the preferred side of
the disc. If the two pressures are equal, then the one
lasting the longest period of time should be applied
to the preferred side. A flow tag with an arrow is
provided for proper installation.
If you have questions about proper valve orientation
in a specific application, contact your Emerson
Process Management sales office.
Installing the Valve
Instruction Manual
Form 5338
February 2007
matching pipe flange rating. Use
pressure-relieving devices 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.
Responsibility for the safety of
process media and compatibility of
valve materials with process media
rests solely with the purchaser and
end-user. 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.
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 in this manual, the limits on the
appropriate nameplates, or the
6
For Wafer Style Valves:
1. See figure 3. Install the lower flange bolts first to
form a cradle for the valve.
2. Properly orient the valve according to the specific
application. Be sure the valve is placed in the line so
the flow properly enters the valve. Then, install the
valve and the gaskets between the flanges into the
cradle formed by the flange bolts.
3. Install the remaining flange bolts, making sure
that the gaskets are centered on the gasket sealing
surfaces of the flange and valve body.
4. Tighten the flange bolts in an alternating
criss-cross fashion to a torque value of one-fourth of
Instruction Manual
Form 5338
February 2007
A11 Valve
B2263/IL
Figure 3. Proper Installation Procedure
the final bolting torque. Repeat this procedure
several times increasing the torque value each time
by a fourth of the final desired torque. When the final
torque value has been applied, tighten each flange
bolt again to allow for gasket compression.
For Single Flange Valves:
1. Position the valve between the flanges. Be sure
to leave enough room for the flange gaskets; then
install the lower flange bolts.
2. Install the gaskets and align the valve and the
gaskets.
3. Install the remaining bolts.
4. Tighten the flange bolts in an alternating
criss-cross fashion to a torque value of one-fourth of
the final bolting torque. Repeat this procedure
several times increasing the torque value each time
by a fourth of the final desired torque. When the final
torque value has been applied, tighten each flange
bolt again to allow for gasket compression.
Thrust Washers
Two thrust washers are used in valve sizes 10-inch
and larger (Class 150), 8-inch and larger (Class
300), 8-inch and larger (Class 600). The thrust
washers are located at the upper and lower bearing
areas of the valve. Thrust washers must be installed
before the disc is installed in the valve body.
Packing Adjustment and Shaft Bonding
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. Check with your process
or safety engineer for any additional
measures that must be taken to
protect against process media.
1. For PTFE or graphite packing: Tighten
standard packing follower nuts only enough to
7
A11 Valve
Instruction Manual
Form 5338
February 2007
prevent shaft leakage. Excessive tightening of
packing will accelerate wear and could produce
higher rotating friction loads on the valve shaft. If
necessary, refer to the Packing Maintenance
section.
2. For ENVIRO-SEAL Packing Systems: These
packing systems will not require this initial
re-adjustment. Refer to the separate ENVIRO-SEAL
Packing System for Rotary Valves Instruction
Manual, Form 5305 for repair and adjustment
procedures.
3. For hazardous atmosphere or oxygen service
valves, read the following Warning, and provide the
bonding strap assembly mentioned below if the
valve is used in an explosive atmosphere.
WARNING
The valve drive shaft is not necessarily
grounded to the pipeline when
installed. Personal injury or property
damage could result, if the process
fluid or the atmosphere around the
valve is flammable, 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 body.
VALVE BODY
37A6528-A
A3143-2/IL
Figure 4. Optional Shaft-to-Body Bonding Strap
Assembly
ACTUATOR
A
AVIEW A-A
5. Connect the other end of the bonding strap
assembly to the valve flange cap screws.
6. For more information, refer to the Packing
Maintenance section below.
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.
Note
The packing is composed of all
conductive packing rings (graphite
ribbon packing) or partially conductive
packing rings (carbon-filled PTFE
female adaptor with PTFE V-ring
packing or graphite-composition
packing ring with PTFE/composition
packing) to electrically bond the shaft
to the valve for hazardous area
service. For oxygen service
applications, and hazardous area
service where the standard packing
doesn’t provide sufficient
shaft-to-valve body bonding, provide
alternate shaft-to-valve body bonding
according to the following step.
4. Attach the bonding strap assembly (key 131,
figure 4) to the shaft with the clamp (key 130,
figure 4).
8
WARNING
Avoid personal injury from sudden
release of process pressure. Before
performing any maintenance
operations:
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
both sides of the valve.
D Vent the power actuator loading
pressure.
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