Baker Hughes Masoneilan 72000 Series User manual

72000 Series
Large Mass Flow Energy
Management Control Valves
Instruction Manual (Rev. A)
Baker Hughes Data Classication : Public

b | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
THESE INSTRUCTIONS PROVIDE THE CUSTOMER/OPERATOR WITH IMPORTANT PROJECT-
SPECIFIC REFERENCE INFORMATION IN ADDITION TO THE CUSTOMER/OPERATOR’S
NORMAL OPERATION AND MAINTENANCE PROCEDURES. SINCE OPERATION AND
MAINTENANCE PHILOSOPHIES VARY, BAKER HUGHES COMPANY (AND ITS SUBSIDIARIES
AND AFFILIATES) DOES NOT ATTEMPT TO DICTATE SPECIFIC PROCEDURES, BUT TO
PROVIDE BASIC LIMITATIONS AND REQUIREMENTS CREATED BY THE TYPE OF EQUIPMENT
PROVIDED.
THESE INSTRUCTIONS ASSUME THAT OPERATORS ALREADY HAVE A GENERAL
UNDERSTANDING OF THE REQUIREMENTS FOR SAFE OPERATION OF MECHANICAL AND
ELECTRICAL EQUIPMENT IN POTENTIALLY HAZARDOUS ENVIRONMENTS. THEREFORE,
THESE INSTRUCTIONS SHOULD BE INTERPRETED AND APPLIED IN CONJUNCTION WITH
THE SAFETY RULES AND REGULATIONS APPLICABLE AT THE SITE AND THE PARTICULAR
REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE.
THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN
EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN
CONNECTION WITH INSTALLATION, OPERATION OR MAINTENANCE. SHOULD FURTHER
INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT
COVERED SUFFICIENTLY FOR THE CUSTOMER/OPERATOR’S PURPOSES THE MATTER
SHOULD BE REFERRED TO BAKER HUGHES.
THE RIGHTS, OBLIGATIONS AND LIABILITIES OF BAKER HUGHES AND THE CUSTOMER/
OPERATOR ARE STRICTLY LIMITED TO THOSE EXPRESSLY PROVIDED IN THE CONTRACT
RELATING TO THE SUPPLY OF THE EQUIPMENT. NO ADDITIONAL REPRESENTATIONS OR
WARRANTIES BY BAKER HUGHES REGARDING THE EQUIPMENT OR ITS USE ARE GIVEN
OR IMPLIED BY THE ISSUE OF THESE INSTRUCTIONS.
THESE INSTRUCTIONS ARE FURNISHED TO THE CUSTOMER/OPERATOR SOLELY TO
ASSIST IN THE INSTALLATION, TESTING, OPERATION, AND/OR MAINTENANCE OF THE
EQUIPMENT DESCRIBED. THIS DOCUMENT SHALL NOT BE REPRODUCED IN WHOLE OR IN
PART WITHOUT THE WRITTEN APPROVAL OF BAKER HUGHES.

Masoneilan 72000 Series Control Valves Instruction Manual | c
Copyright 2021 Baker Hughes Company. All rights reserved.
Table Of Contents
Safety Information........................................................................................................................................................................................................1
About This Manual..................................................................................................................................................................................................1
Warranty .................................................................................................................................................................................................................1
72000 Series Numbering System................................................................................................................................................................................2
Introduction...................................................................................................................................................................................................................3
Scope .....................................................................................................................................................................................................................3
Serial Plate .............................................................................................................................................................................................................3
After Sales Service.................................................................................................................................................................................................3
Spare Parts ............................................................................................................................................................................................................3
Actuator and Accessories.......................................................................................................................................................................................3
Unpacking .....................................................................................................................................................................................................................3
Installation.....................................................................................................................................................................................................................3
Piping Cleanliness..................................................................................................................................................................................................3
Isolation Bypass Valve............................................................................................................................................................................................3
Heat Insulation .......................................................................................................................................................................................................4
Hydrostatic Testing and Line Cleaning ...................................................................................................................................................................4
Flow Direction.........................................................................................................................................................................................................4
Welded Connections ....................................................................................................................................................................................................4
Pre-Weld Preparation.....................................................................................................................................................................................................4
Welding Process.....................................................................................................................................................................................................4
Post Weld Cleaning and Assembly ........................................................................................................................................................................4
Actuator Assembly..................................................................................................................................................................................................4
Disassembly..................................................................................................................................................................................................................4
Valve Actuation.......................................................................................................................................................................................................4
Disconnect Instrumentation....................................................................................................................................................................................4
Air-to-Retract Actuators ..........................................................................................................................................................................................4
Threaded Connection.............................................................................................................................................................................................4
Split Clamp Connection..........................................................................................................................................................................................4
Air-to-Extend Actuators ..........................................................................................................................................................................................4
Actuator Removal...................................................................................................................................................................................................4
Valve Disassembly .......................................................................................................................................................................................................5
Plug Stem Disassembly .........................................................................................................................................................................................5
Auxiliary Pilot Plug Disassembly ............................................................................................................................................................................6
Maintenance and Repair ..............................................................................................................................................................................................6
Packing Box ...........................................................................................................................................................................................................6
PTFE Packing ........................................................................................................................................................................................................6
Valve with Graphite Packing...................................................................................................................................................................................6
Repair of Parts..............................................................................................................................................................................................................7
Guiding Surfaces....................................................................................................................................................................................................7
Seating Surfaces ....................................................................................................................................................................................................7
Gaskets ..................................................................................................................................................................................................................8
Seal Rings ..............................................................................................................................................................................................................8
Metal Seal ..............................................................................................................................................................................................................8
Valve Plug...............................................................................................................................................................................................................8
Conical Springs ......................................................................................................................................................................................................8
Valve Reassembly ........................................................................................................................................................................................................8
Pinning the Valve Plug ...........................................................................................................................................................................................8
Seal Ring Assembly ...............................................................................................................................................................................................8
Completing Valve Body Assembly..........................................................................................................................................................................9
Valve Plug and Cage Assembly .............................................................................................................................................................................9
Valve Plug and Auxiliary Pilot Plug Assembly ........................................................................................................................................................9
Bonnet Assembly .........................................................................................................................................................................................................9
Tightening Body Nuts ...........................................................................................................................................................................................10
Packing Box Assembly .........................................................................................................................................................................................10
Bolt Torquing Sequence ............................................................................................................................................................................................10
Parts Reference For 72000 Series Control Valve ................................................................................................................................................12
Actuation.....................................................................................................................................................................................................................14
Parts Reference Table 51/52/53 Actuators ...............................................................................................................................................................23

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Masoneilan 72000 Series Control Valves Instruction Manual | 1
Copyright 2021 Baker Hughes Company. All rights reserved.
Safety Information
Important - Please read before installation
These instructions contain DANGER, WARNING, and CAUTION
labels, where necessary, to alert you to safety related or other
important information. Read the instructions carefully before
installing and maintaining your control valve. DANGER and
WARNING hazards are related to personal injury. CAUTION
hazards involve equipment or property damage. Operation
of damaged equipment can, under certain operational
conditions, result in degraded process system performance
that can lead to injury or death. Total compliance with all
DANGER, WARNING, and CAUTION notices is required for safe
operation.
This is the safety alert symbol. It alerts you to potential personal
injury hazards. Obey all safety messages that follow this symbol
to avoid possible injury or death.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in serious injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
When used without the safety alert symbol, indicates a
potentially hazardous situation which, if not avoided, could
result in property damage.
Note: Indicates important facts and conditions.
About this Manual
• The information in this manual is subject to change without
prior notice.
• The information contained in this manual, in whole or part,
shall not be transcribed or copied without Baker Hughes's
written permission.
• Please report any errors or questions about the information in
this manual to your local supplier.
• These instructions are written specically for the
Masoneilan™ 72000 Series Energy Management Control
Valves, and do not apply for other valves outside of this
product line.
• Changes to specications, structure, and components used
may not lead to the revision of this manual unless such
changes affect the function and performance of the product.
• Periodic monitoring of the valve and trim should be performed.
Under certain operating conditions, the use of damaged
equipment could cause a degradation of the performance of
the system which may lead to personal injury or death.
Useful Life
The current estimated useful life period for the Masoneilan
72000 Series is 25+ years. To maximize the useful life of the
control valve, it is essential to conduct annual inspections,
routine maintenance and ensure proper installation to avoid any
unintended stresses on the control valve. The specific operating
conditions will also impact the useful life of the valve. Consult
the factory for guidance on specific applications if required prior
to installation.
Warranty
Items sold by Baker Hughes are warranted to be free from
defects in materials and workmanship for a period of one
year from the date of shipment provided said items are used
according to Baker Hughes recommended usages. Baker
Hughes reserves the right to discontinue manufacture of any
product or change product materials, design or specifications
without notice. This instruction manual applies to the 72000
Series Energy Management Control Valves.
The warranty for this product requires
• The 72000 Series Control Valves must be installed, put
into service and maintained by qualied and competent
professionals who have undergone suitable training.
• All surrounding pipe lines must be thoroughly ushed to ensure
all entrained debris has been removed from the system.

2 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Numbering System
2nd
2
5th
4th3rd2nd
1st 1st
7
6th
0 Unbalance
2 Polymeric Seal
Ring and Soft
Seat
4 Metal Seal Ring
and Metal Seat
with Auxiliary Pilot
Plug
5 Metal Seal Ring
and Metal Seat
6 Polymeric Seal
Ring and Metal
Seat
9 Graphite Seal
Ring and Metal
Seat
Seal TypeBody Series
72 Fabricated
Angle Valve
Options
AS Angle
Stub
EB Extension
Bonnet
D Diffuser
0 Undefined
1 Single Stage
Lo-dB
2 Double Stage
Lo-dB
8 Partial Stack
9 V-LOG
Trim Type
0 Custom
Characteristic
1 Linear
2 Equal %
4 Modified Linear
Trim
Characteristic
Actuator Type
87 Spring-Diaphram
(Air to Close)
88 Spring-Diaphram
(Air to Open)
51 Cylinder
Double Acting
52 Cylinder
Spring Return
(Air to Close)
53 Cylinder
Spring Return
(Air to Open)

Masoneilan 72000 Series Control Valves Instruction Manual | 3
Copyright 2021 Baker Hughes Company. All rights reserved.
Figure 1 - 72000 Series
Energy Management Control Valve
Careful attention must be paid to the serial plate prior
to pressurizing of the 72000 Series valve. Inlet and
outlet connections may be independently designed for
the conditions at their point of operation, thus ASME
pressure class ratings may differ at each connection.
If major system or piping modications (or repairs)
are per-formed, thorough ushing and blowdown of
the system will be required prior to reinstalling the
trim. Sacricial ushing trim should be installed in
this valve to protect the integrity of the ow passages.
Failure to follow this warning will violate the valve
warranty agreement and could result in control
instability, excessive noise levels, and valve leakage.
Introduction
Scope
The following instructions are designed to guide the user
through the installation and maintenance of the 72000 Series
Energy Management Control Valves.
The 72000 Series product is part of Masoneilan’s Engineered
Product portfolio, and is custom designed to fit our customers’
most difficult applications. For this reason, sections of this
instruction manual may be replaced with specific drawings and
descriptions that apply only to the valves that are specified for
use on a given project. For further detailed information on your
specific 72000 Series valve design, please contact your local
Baker Hughes Sales office.
Serial Plate
The serial plate is usually fixed to the side of the actuator yoke.
It indicates information about the valve including size and type,
pressure class rating, body/bonnet material, and serial number.
After Sales Service
Baker Hughes offers After Sales Service comprised of highly
qualified technicians to support the installation, operation,
maintenance and repair of its equipment. For support contact
your local Sales representative.
Isolation Bypass Valve
To allow for in-line inspection, maintenance and removal of the
valve without service interruption, provide a manually operated
shutoff valve on each side of the control valve and a manually
operated throttling valve in the bypass line.
Spare Parts
Only Masoneilan replacement parts should be used when
carrying out maintenance operations. Obtain replacement
parts through local Sales representatives or Masoneilan Parts
Department.
When ordering spare parts, the MODEL AND SERIAL
NUMBERS indicated on the manufacturer’s serial plate MUST
BE GIVEN. The serial plate is on the side of the actuator yoke.
Actuator and Accessories
Actuators and other valve accessories have their own instruction
manuals that provide information and details on the assembly
and installation. Refer to the appropriate instruction manual for
each unique actuator and accessory.
Unpacking
Care must be exercised when unpacking the valve to prevent
damage to the accessories and component parts. Contact the
local Baker Hughes Sales Office or Service Center with any
issues or problems. Be sure to note the valve model number
and serial number in all correspondence.
Installation
The 72000 Series Control Valves are designed to handle large
capacity flow rates. Thus, the overall size and weight of these
valves are larger than typical control valves. Proper piping
supports and hangers must be used to support the weight of
the valve, and the removal of the large trim components during
periodic maintenance.
Piping Cleanliness
Before installing the valve in the line, clean piping and valve
of all foreign material such as welding chips, scale, oil, grease
or dirt. Gasket mating surfaces must be thoroughly cleaned to
ensure leak-free joints. Sacrificial start-up fixtures are highly
recommended for purchase from Baker Hughes to protect the
operational trim during the installation and line flushing phases.

4 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Actuator may be pre-loaded with tension from air pressure
or springs. Prior to disconnecting instrumentation read
all instructions for the specic actuator.
Heat Insulation
In case of a heat-insulated installation, do not insulate the valve
bonnet and take protective measures relative to personal safety.
Hydrostatic Testing and Line Cleaning
During this operation, the control valve must not be used as
an isolating valve. This means that the valve must always be
opened before carrying out pressure tests in the process line,
cleaning of pipes, etc. Otherwise equipment damage or failure
of the seal rings could result. Flushing and hydrostatic test
equipment can be purchased from the Masoneilan factory.
Flow Direction
The valve must be installed so that the process fluid will flow
through the valve in the direction indicated by the flow arrow
located on the body.
Welded Connections
Disassembly
Valve Actuation
Access to the internal components of the valve should be
accomplished with the actuator removed. Follow the detailed
instructions below and refer to the appropriate actuator
instruction manuals.
Disconnect Instrumentation
Disconnect all mechanical connections between the positioner
and the other instruments. Disassemble the valve stem and
actuator stem coupling as described in the following sections.
Air-to-Retract Actuators
Apply sufficient air pressure to the actuator to retract the stem
completely. Disconnect the plug stem from the actuator stem
depending on the connection type as described below.
Threaded Connection
Unscrew the plug stem from the actuator stem, making sure the
plug never contacts the seating area (liner or seat ring) at any
time during disassembly.
Split Clamp Connection
Remove the screws and disassemble the stem connector from
the valve and actuator stem.
Air-to-Extend Actuators
For this actuator configuration, the valve plug is already in
the fully retracted position without any air pressure applied.
Disconnect the plug stem and actuator stem as described in
the threaded connection and stem connector sections above
depending on the connection type.
Actuator Removal
Disconnect all electrical and air connections to and from the
actuator. Disassemble yoke nut or yoke attachment screws or
bolted connections, and lift the actuator off of the valve being
careful not to damage the bonnet threads.
Pre-Weld Preparation
Carefully follow the installation steps defined in the sections
noted below prior to performing weld procedures.
Welding Process
Perform welding process in accordance with the standard
requirements for the materials and weld construction of the
specific valve. Apply post weld heat treatment if required.
Post Weld Cleaning and Assembly
Inspect the body, bonnet, and trim components for cleanliness
and surface condition. Remove any foreign materials, such
as weld chips, slag or scale. Make sure there are no nicks,
scratches, burrs or sharp corners on sealing and sliding
surfaces. Clean all gasket interface surfaces and reassemble
using new gaskets to ensure sealing integrity.
Actuator Assembly
Assemble the pneumatic actuator onto the control valve using
the appropriate instructions for the specific actuator model and
type. Connect air pressure lines to the actuator ports to meet
intended operating mode (i.e., air-to-extend, air-to-retract, or
double-acting).
Carefully review the information in this section prior
to welding any valves inline. Refer any additional
questions to the local Baker Hughes Sales Ofce or
Service Center.
Internal valve components should be removed prior
to performing any post weld heat treatment in order
to prevent damaging any soft goods (such as teon®
seals). If unable to remove the elastomeric components,
then other methods must be employed to prevent the
local temperature around the seals from exceeding the
maximum material limits (typically 450°F / 232°C for
teon based materials).
Contact between the plug and seating area during this
disassembly process may cause damage to the seating
surfaces. It may be necessary to disassemble the actuator
yoke from the valve bonnet and lifting the actuator off the
valve to avoid plug to seating surface contact.
Prior to performing any maintenance on the valve,
isolate the valve and vent the process pressure.

Masoneilan 72000 Series Control Valves Instruction Manual | 5
Copyright 2021 Baker Hughes Company. All rights reserved.
Plug
Cage
Plug
Cage
Figure 2 - Bell-Shaped Plug Design
Figure 3 - Straight Plug Design
Note: Many of the larger trim components are designed
with threaded lifting holes. It is recommended to use eye
bolts for ease of lifting during removal and re-assembly.
Valve Disassembly
The valve must always be reassembled with new packing
set and gaskets. Before disassembly, make sure the
recommended spare parts are available for reassembly.
1. Disconnect the piping to the leak detector connection on the
bonnet (if applicable).
2. Remove the packing flange nuts (16) then remove the
packing flange (17) and the packing follower (18).
3. Check the exposed part of the valve stem (7) to confirm it is
clean enough for ease of removal of the bonnet (2).
4. Remove the body nuts (5).
For valve configurations designed with a two piece bonnet
assembly (bonnet and bonnet flange):
5. Disassemble the bonnet flange (3) from the valve body (1).
6. Lift the bonnet (2) and metal seal (6) to remove from the
valve body (1). During this operation, the valve stem (7)
must be pushed downward to ensure the valve plug (8)
remains inside the valve body.
Note: The metal seal (6) may require some force to remove
from the bonnet (2). Using a common tool, such as an
open-end wrench, lever the seal up at various points to lift
out evenly.
7. Remove the body gasket (25) from the top of the valve cage
(10) or (if applicable) cage retainer (11). Proceed to step 10.
For valve configurations designed with a single piece bonnet:
8. Lift the bonnet (2) and remove from the valve body (1).
During this operation, the valve plug stem (7) must be
pushed downward to ensure the valve plug (8) remains
inside the valve body (1).
9. Remove the body gasket (25) from the groove on top of the
valve body (1).
10. If applicable, remove the conical spring (14) from the
groove on top of the valve cage. Some designs for high
temperature service may include a conical spring.
11. Remove the valve plug assembly (8) from the valve cage
by pulling the valve plug stem (7) upward. In the case of
the bell-shaped plug design (see Figure 2), pulling the plug
stem (7) will remove both the plug (8) and cage (10) or (if
applicable) cage retainer (11) together. For straight plug
designs (see Figure 3), after removal of the plug (8) lift
the cage (10), and (if applicable) the cage retainer (11) to
remove from the valve body (1).
The valve plug stem is screwed, pinned and tack welded into
the valve plug (8). To disassemble the stem, the valve plug must
be held as shown below in Figure 4, taking care not to damage
the guiding surfaces. Remove tack weld if applicable and
disassemble the plug stem groove pin (24) from the assembly.
By means of flats or using a nut and counter-nut on the end of
the stem, unscrew the stem from the plug taking care not to
apply a bending movement which could deform it.
Note: For straight plug designs, as shown in Figure 3, care
must be taken to ensure the cage is not lifted out during
removal of the plug.
12. Remove the seat ring (13) by lifting the part out of the valve
body (1).
Note: The upper seat ring gasket (26) if supplied is located
on the top groove of the seat ring.
13. Remove the lower seat ring gasket (26) from the valve body (1).
14. Remove the packing set (19) and the guide bushing (20)
from the bonnet (2).
Piping Cleanliness
The valve plug assembly is screwed and pinned, and
in some cases tack welded to ensure stability and
performance. Due to the critical purpose of the plug
assembly and tolerance requirements, Baker Hughes
highly recommends avoiding in the eld maintenance
of this part. The plug assembly should be purchased
as a complete assembly. However, if urgent eld
repair is required, follow the instructions below.
Many of the trim components in the valve are both
large and heavy. Provisions should be made for
special lifting devices to avoid risk of injury during
maintenance. It is recommended to remove the valve
from line for easy disassembly.

6 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Tight only
on this
non-guiding
surface
Do not
tighten
on the
plug skirt
Soft metal
vise jaw
Cylindrical machining
diameter of the jaw =
plug shank diameter: Dia. A
Stop pin
integrated in
vise jaw and
inserted into a
plug hole
Figure 4 - Valve Plug Stem S/A Disassembly
Auxiliary Pilot Plug Disassembly
(Model 724XX)
For size 3" or 4" (80 or 100 mm) valves:
Exert a sufficient force on the auxiliary pilot plug (21) to
compress the pilot springs (22). The retaining ring (23) can then
be removed, allowing for disassembly of the auxiliary pilot plug
and springs.
Some auxiliary pilot plug designs may incorporate a threaded
and welded retaining ring. For disassembly machine removal of
the weld is required. After removal of the weld, compress the
pilot assembly to unthread the retainer.
For size 6" to 16" (150 to 400 mm) plug sizes:
To carry out this operation safely, screws with diameters and
lengths indicated in Table 1 must be used. Thread the socket
head cap screws through the holes in the auxiliary pilot plug
(21). Tighten until the retaining ring (23) can be removed.
Loosen the screws gradually, then remove the auxiliary pilot
plug and the spring (22).
Maintenance and Repair
The purpose of this section is to provide recommended
maintenance and repair procedures. These procedures assume
the availability of standard shop tools and equipment.
Packing Box
Tight sealing within the packing box is obtained by compression
of the packing (19). Compression must be achieved by evenly
tightening the packing flange nuts (16) on the packing flange
(17). Periodic re-tightening of the packing flange nuts may be
required to maintain proper sealing.
Be careful not to over tighten the packing as this
could prevent proper operation of the valve. If leakage
persists after maximum packing compression, then
the packing needs to be changed.
Table 1
Valve Size. Pilot Dismounting Screw Sizes
Qty Length Diameter
in. mm in. mm
6 150 2 2.25 57.0 1/4"- 20 UNC 2A
8 20 2 2.5 63.5
3/8"- 16 UNC 2A
10 250 2 2.75 70.0
12 300 3 4.00 101.5
16 400 3 4.00 101.5
PTFE Packing and
PTFE V-Ring Packing
Kevlar®/PTFE, carbon/PTFE and pure PTFE packing rings are
cut in such a way that they can be replaced without having to
separate the valve plug stem from the actuator stem.
Note: V-Ring packing requires smooth, 32 µ inch RMS or
finer, finish. Inspect stem and packing box bore to ensure
the surfaces have not been damaged. If damage has
occurred, the surfaces must be repaired to ensure proper
sealing.
1. Unscrew and remove the packing flange nuts (16).
2. Lift the packing flange (17) and packing follower (18) up
along the valve stem (7).
3. By means of a puller, remove the packing (19) being careful
not to damage the sealing surface of the packing box or the
valve plug stem.
4. Replace the packing rings, placing the cut in each ring
about 120° apart from the adjacent ring. Press rings in one
at a time.
5. Reassemble the packing follower (18) and the packing
flange (17).
6. Tighten the packing flange nuts (16) without over
compressing the packing rings.
Note: In case of V-ring packing, compress packing flange
nuts to finger tight, plus one half additional turn.
7. Put the valve back into service and check for leakage. If
packing leaks, tighten packing flange nuts (16) in half turn
increments as required.
Valve with Graphite Packing
To replace graphite packing, it is necessary to separate the
valve plug stem from the actuator stem.
1. Remove the packing flange nuts (16) from the packing
flange studs (15).
2. Lift the packing flange (17) and packing follower (18) up
along the valve stem (7).
3. By means of a puller, remove the packing (19) being careful
not to damage the sealing surface of the packing box or the
valve plug stem.
4. Replace the packing (19). Press a back-up ring (car-bon/
graphite/Inconel braided ring) into the bonnet (2). Next
press the expanded graphite rings into the packing area
one at a time. Press an additional back-up ring into packing
area.
5. Reassemble the packing follower (18) and the packing
flange (17).
6. Tighten the packing flange nuts (16) without over-
compressing the packing rings.

Masoneilan 72000 Series Control Valves Instruction Manual | 7
Copyright 2021 Baker Hughes Company. All rights reserved.
7. Open and close the valve several times then retighten the
packing as required.
8. Put the valve back into service and check for leakage.
Tighten packing flange nuts (16) as required.
Repair of Parts
Prior to reassembly, examine parts carefully for any scratches,
unusual wear, or other damage.
Guiding Surfaces
Guiding surfaces of the cage, valve plug, guide bushing, plug
stem, and auxiliary pilot plug must be checked. See Figures 5
and 6. If there are only slight wear indications, then gently use
a light abrasive, such as Scotchbrite®or fine grit sandpaper, to
smooth out guiding surfaces. Parts with significant damage or
wear on the guiding surfaces must be replaced.
Seating Surfaces
The seat ring seating surface and valve plug seating surface
must be completely free of dents, wear, or scratches. Consult
factory should you see any signs of slight deterioration prior to
attempting touchup. If a slight defect exists on either the seat
ring seating surface and valve plug seating surface, lapping can
be applied per the following instructions.
1. CIean body gasket surface areas.
2. Install a new seat ring gasket (26).
Note: Seat ring gasket (26) is temporarily placed to hold the
seat ring during lapping.
It is imperative to use a new gasket or a test part having
the same geometrical characteristics in order to insure the
correct position of the seat ring during lapping.
This gasket (or similar part) can be kept after lapping for
future lapping use.
The gasket used for lapping must not be reused for the
body reassembly.
Figure 5 - Guiding Surfaces
Figure 6 - Typical Seating Angles
3. Place seat ring (13) in the body, noting the seating angle is up.
4. Spread a fine layer of high quality lapping compound (600
grit) on the seating surface.
5. Assemble the cage (10) and (if applicable) cage retainer
(11) and the plug assembly (8) into the valve body (1) per
the valve plug assembly instructions.
6. Assemble the bonnet (2) and the guide bushing (20) if
required.
7. Place an appropriate tool on the valve stem (7) thread to
allow for manual rotation.
8. Lap by slightly rotating the valve plug in alternate directions
± 15° per rotation. After several rotations, lift the valve stem,
turn it 90 degrees, and repeat the operation.
9. Lapping can be repeated, but should be limited as much
as possible so that the seat remains sufficiently narrow to
guarantee tightness.
10. After lapping, disassemble the parts to clean them and
then reassemble, making sure the seating angles are within
tolerance. See Figure 6.
Note: For more details on the lapping procedure and seat-
ing angles, please consult the factory and provide the valve
serial number (found on the serial plate on the actuator).
Guiding
surface
Pilot Seating surface
Guiding
surface
Seat ring seat
Plug seat
Pilot seat
Seating surface Guiding surface
Guiding surface
Seating surface
Valve plug
Seat ring
Guiding
surface
Pilot Seating surface
Guiding
surface
Seat ring seat
Plug seat
Pilot seat
Seating surface Guiding surface
Guiding surface
Seating surface
Valve plug
Seat ring

8 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Gaskets
Gasket seating surfaces must be free of dents, scratches,
corrosion, or other types of damage. Clean mating surfaces as
required and replace any non-conforming parts. Spiral wound
gaskets (Items 25, 26 & 27) must always be replaced after
disassembly.
Seal Rings
Seal rings (9), back-up rings (28), retaining rings (23), and
conical springs (14) should be inspected periodically. It is
recommended to routinely replace these parts, but they may
be re-used if they are free from scratches, erosion, corrosion,
or other damage.
Note: Compressed graphite seal rings must be replaced
each time the plug is removed from the valve.
Metal Seal
For the two piece bonnet configurations:
Prior to reassembly, the metal seal (6) should be inspected for
cracks or signs of wear. The metal seal can be reused if it is
free from scratches, erosion, corrosion, or any other type of
damage.
If slight wear exists on the metal seal, a new layer of coating
should be re-applied to the original condition by the factory
or a Masoneilan Authorized Repair Center (MARC™). For
emergency repairs in the field, the metal seal may be coated
with a molybdenum disulfide based spray on lubricant such as
MolyKote®.
Prior to reassembly of the valve, inspect the inside of the valve
body around the area where the metal seal seats. It is common
to find slight ridges or depressions from where the seal was
originally seated. During initial assembly these depressions aid
in the sealing of the valve, however these areas can become
leak paths during reassembly if the surface is not restored to its
original finish as described below.
To prevent this potential leakage, machine the seating angle of
the bonnet at 40 degrees by approximately 0.1 inches (2.5 mm)
deep, thus causing the metal seal to seat further down inside
the valve body (on a new undeformed surface). Refer to Figure
7 for details.
Figure 7 - Bonnet Seating Angle Details
(see page 12, detail B)
Figure 8 - Installing Seal Ring
Conical Springs
For Models that use a conical spring design, always inspect the
body bore surface adjacent to where the conical spring (14) is
seated. If this surface has been deformed or if there is a groove
where the seal seats, the surface should be cleaned and honed
prior to reassembling the valve.
If the refinishing procedure is unsuccessful, the factory should
be consulted for further instructions.
Valve Reassembly
Pinning the Valve Plug
The valve plug assembly consists of a stem (7) that is threaded
into the valve plug (8). To secure this assembly, the stem (7) is
then pinned (24) and tack welded to the valve plug (8).
If the valve plug (8) or stem (7) needs to be replaced, an entire
assembly should be purchased from the factory to ensure
product strength and integrity. Re-machining of these parts
in the field can seriously impair the mechanical strength and
integrity of the valve plug stem assembly.
Seal Ring Assembly
Model 724XX (Auxiliary Pilot Plug) and
725XX (Metal Seal Ring)
1. To insert the seal ring in the valve plug groove, place it over
the conical top of the plug, then push down evenly from all
sides until the ring slips into the groove. See Figure 8.
Note: These valves may also be equipped with a second-
ary metal seal and elastomeric back-up ring located on the
lower area of the plug near the seating surface.
2. Install the back-up ring (28) onto the plug using care not
to damage the ring on any sharp surfaces. The back-up
ring does not require lubrication, however, a light coating of
compatible lubricant will help install the seal.
3. Install the seal ring (9) over the back-up ring (28).
Note: When the plug assembly is installed into the cage
bore, the lead in angle of the cage will compress the ring
into place. If the seal ring is not compressed a ring com-
pression tool may be required for proper installation.
6
AND BURRS
EDGE MUST BE
FREE FROM NICKS
Ra0.8
40°30'
39°30'
2
1
Pushing
Direction

Masoneilan 72000 Series Control Valves Instruction Manual | 9
Copyright 2021 Baker Hughes Company. All rights reserved.
Model 722XX and 726XX (Polymeric Seal)
These valves are equipped with an inner elastomeric ring and an
outer PTFE ring.
1. Insert the elastomeric back-up ring (28) into the groove.
2. Place the PTFE seal ring (9) in boiling water for a few minutes.
Slide the seal ring along the plug until it slips into the groove.
3. For optimum insertion of the ring, a Serflex type ring
compressor can be used to compress the ring in the groove
for several minutes.
Model 729XX (Graphite Seal Ring)
These valves are also equipped with an inner and outer ring
arrangement. The inner metal ring has a straight cut and the outer
ring is made of graphite.
1. Replacement graphite seal rings (9) are supplied in a closed
ring form, and a notch must be cut before being assembled to
the plug.
2. Using a sharp blade, make a notch in the graphite ring. Hold
the ring on either side of the notch between the thumb and
index and bend until it breaks.
3. Using a very fine file, adjust each end of the ring so
that its external circumference corresponds to the internal
circumference of the cage (10) and (if applicable) the cage
retainer (11).
4. To adjust the length of the ring correctly, insert the new
graphite ring into the cage with the ring against the inner wall
of the cage (allowing for minimum play between the two ends
of the ring).
5. First assemble the inner metal ring into the cage groove, then
assemble the graphite ring over the metal ring. Be careful not
to damage the parts.
Note: The breaks on each ring should be placed approxi-
mately 180° apart.
Completing Valve Body Assembly
It is recommended to consult the factory for actual assembly cross
sectional drawing as some design configurations may vary from
the instructions.
Proceeds as follows:
1. After checking all sealing surfaces to ensure they are
thoroughly clean, assemble the seat ring gasket (26) in the
valve body (1). Make sure the gasket is centered properly in
the body.
2. Assemble the seat ring (13) into the valve body on top of the
seat ring gasket (26).
3. Install upper seat ring gasket (26) if applicable.
Note: For proper sealing it is important to confirm the gasket
is properly engaged in the seat ring gasket groove. If proper
alignment can not be achieved, spread a silicone grease,
such as Dow III, into the gasket groove to retain the gasket
during assembly.
Valve Plug and Cage Assembly
For 724XX (Auxiliary Pilot Plug) proceed to Step 6.
4. For valves using a straight plug design (See Figure 3),
install the cage (10) and (if applicable) the cage retainer
(11) into the valve body by seating it on top of the seat
ring. For valves using a bell shaped design (See Figure 2),
proceed to Step 7.
5. Insert the valve plug, stem assembly (7) including the seal
rings (9) and back-up rings (28) if applicable, into the valve
cage taking particular care not to damage the seal rings (9,
28) upon entry. Proceed to Step 8.
Note: Polymeric seal rings should be lightly greased with a
silicone based lubricant, such as Dow III, prior to installing
the plug into the cage.
Valve Plug and Auxiliary
Pilot Plug Assembly
6. Assemble either the flat spring washers (sizes 3" and 4")
or the coil springs (sizes 6" to 16"), then assemble the valve
plug assembly (8), using the same tools as those used for
disassembly (see section on disassembly). Compress the
springs so that the retaining ring (23) can be installed into the
groove in the main plug.
Note: For auxiliary pilot plugs with threaded spring
retainers, the retaining ring must be seal welded to the
main plug.
For trim configurations designed with a two piece cage
(cage and cage retainer):
7. Assemble the cage (10) into valve by seating it on top of the
seat ring (13).
8. If applicable, install body gasket (25) on to cage (10).
9. Assemble the cage retainer (11) over the valve plug
assembly (8) from the top of the plug stem. Make sure the
seal ring (9) in the plug groove stays positioned correctly.
Insert the cage and plug assembly into the valve body.
10. If applicable, install the conical spring (14) on top of the
cage retainer (11).
For trim configurations designed with a single piece cage:
11. Assemble the cage (10) over the valve plug assembly (8)
from the top of the plug stem. Make sure the seal ring (9)
stays positioned in the plug groove correctly. Insert the cage
and plug assembly into the valve body.
12. If applicable, install the conical spring (14) on top of the
cage (10).
Bonnet Assembly
1. Make sure the packing (19) and guide bushing (20) have
been removed from the bonnet (2).
2. Position the bonnet (2) above the valve body (1), so the
packing flange studs (15) are perpendicular to the inlet of
the valve.
Graphite seal rings are fragile so the following
operations must be carried out very carefully.

10 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
During this operation, make sure the plug does not turn
when it is seated. If the plug travel is very small and
there is a large amount of plug stem inside the actuator,
it may be necessary to remove the yoke nut and lift the
actuator so that the plug is not touching the seat.
Refer to the appropriate instruction manual for the
actuator and each unique accessory.
For configurations designed with a two piece bonnet
(bonnet and bonnet flange):
3. Assemble the bonnet (2) over the valve stem (7) and push
it down carefully. Be careful not to damage the stem during
the assembly process.
4. Place the metal seal (6) over the bonnet (2) and press the
metal seal down into the groove formed between the body
and the bonnet.
5. Assemble the bonnet flange (3) over the bonnet (2) and
align the bolt holes with the body studs (4). Make sure
the bonnet flange is also aligned with the metal seal (6).
Proceed to Step 8.
For trim configurations designed with a single piece bonnet:
6. Assemble the bonnet (2) over the valve stem (7) and push
it down carefully to align the bolt holes with the body studs
(4). Be careful not to damage the stem during the assembly
process.
7. Install body gasket (25) on to the groove on top of the valve
body (1).
8. Grease the threads of the valve body studs (4) and the
bearing surfaces of the body stud nuts (5).
9. Assemble the body stud nuts (5) manually. Hand tight-en
the nuts evenly so the internal parts are held in place. The
face of the bonnet should be parallel to the upper face of
the valve body.
10. If applicable, slide the guide bushing (20) onto the valve plug
stem (7) and let it drop to the bottom of the packing box.
Tightening Body Nuts
In order to achieve perfect alignment of the body and the internal
components, it may be beneficial to provide loading to the
plug stem assembly (8) during tightening. This may benefit the
positioning of various parts in installations where the actuator
and trim are installed horizontally.
The force can be applied with the actuator as follows:
Place the actuator on the valve bonnet (2) by means of the yoke
nut (29) or bolted connections and connect the valve plug stem
(7) to the actuator stem.
Tighten the body nuts (5) evenly by applying the torque
indicated on the valve assembly drawing (typical torque values
are provided as references in Table 2) consult factory for other
arrangements not shown on the table. Use the tightening
sequence as indicated in Figure 9.
Packing Box Assembly
Assemble the packing box components per the maintenance
instructions in the Packing Box maintenance procedure on Page 6.
Bolt Torque Sequence
Figure 8 details the tightening sequence for the bonnet/body bolts
torques for a 72000 Series. Evenly apply torque to the amount
indicated on the valve assembly drawing (typical torque values
for SA193 B7, SA193 B7M, and SA193 B16 bolting materials are
provided as references in Table 2).
Figure 9 - Bolt Torque Sequence
Table 2 - Body/Bonnet Bolting Torque
TORQUE
Body/Bonnet Bolting Requirements
Valve Size Body Nuts Assembly Torque
Nominal
size
(in)
Pressure
rating
Size
(in) Quantity ft.lb N.m
3
150/300 3/4 10 8 133 180
600 3/4 10 8 163 220
900 1 1/4 8 6 563 760
1500 1 1/4 8 6 815 1100
4
150/300 7/8 9 8 170 230
600 7/8 9 8 259 350
900 1 1/2 8 6 889 1200
1500 1 1/2 8 6 1370 1850
6
150/300 1 8 8 326 440
600 1 8 12 237 320
900 1 3/4 8 8 1370 1850
1500 1 3/4 8 8 1370 1850
8
150/300 1 1/4 8 8 526 710
600 1 1/4 8 12 481 650
900 1 3/4 8 8 1370 1850
1500 1 3/4 8 8 1778 2400
10
150/300 1 1/2 8 8 852 1150
600 1 1/2 8 12 852 1150
900 1 3/4 8 12 1370 1850
1500 1 3/4 8 12 1630 2200
12
150/300 1 1/2 8 8 926 1250
600 1 1/2 8 12 852 1150
900 1 1/2 8 16 926 1250
1500 1 3/4 8 16 1630 2200
16
150/300 1 1/2 8 12 852 1150
600 1 1/2 8 16 826 1250
900 1 1/2 8 20 1111 1500
1500 1 3/4 8 20 1926 2600

Masoneilan 72000 Series Control Valves Instruction Manual | 11
Copyright 2021 Baker Hughes Company. All rights reserved.
Item No. Description
1 Body
2 Bonnet
3Bonnet Flange
4Body Stud
5Body Nut
6Metal Seal
7 Stem
8Plug
9Seal Ring
10 Cage (V-Log or Lo-dB)
11 Cage Retainer
12 Soft Seat Insert
13 Seat Ring
14 Conical Spring
15 Packing Flange Stud
16 16 Packing Flange Nut
17 Packing Flange
18 Packing Follower
●19 Packing S/A
20 Guide Bushing
21 Auxiliary Pilot Plug
22 Pilot Spring
23 Retaining Ring
24 Groove Pin
●25 Body Gasket
●26 Seat Ring Gasket
●27 Cage Gasket
28 Back-Up Ring
29 Yoke Nut
Parts Reference For 72000 Series Control Valve
Table 3
Parts may differ according to specific valve supplied.
All parts may not be applicable.
● Recommended Spare Parts (some parts may not
be applicable to all designs)

12 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Figure 10 - 72000 Series Cross Section
DETAIL A
SCALE 1 : 2
DETAIL B
SCALE 2 : 3
DETAIL C
SCALE 2 : 3
1
3
4
29
5
8
11
7
2
24
13
10
26
A
B
C
27
9
23
25
20
19
1817
16
15
6
3

Masoneilan 72000 Series Control Valves Instruction Manual | 13
Copyright 2021 Baker Hughes Company. All rights reserved.
Actuation
Type 87/88 Multi-Spring Diaphragm Actuators
Connecting Type 87 (Air to Extend)
No. 6 Actuator (Figure 11)
1. Tightly assemble the hex nuts (1) onto the plug stem.
2. Push down the actuator, and screw on the yoke nut (33) at the
same time. Then assemble the bottom stem connector (2). As
soon as it becomes possible, insert the valve stem into the
actuator stem (10). The stem must be inserted far enough so
that when there is no air in the actuator, the valve plug does
not touch the seat.
3. Tighten the yoke nut (33).
4. Supply air to the actuator at the final pressure.
5. Use the pointer (7) to set the travel scale (9) to the valve open
position.
6. Supply the actuator with air at a sufficiently high pressure to
obtain a travel equal to the nominal travel of the valve.
7. Unscrew the plug stem until the valve plug is in contact with
the seat. Do not turn the valve plug on the seat as this could
damage the sealing surfaces.
8. Screw the hex nuts (1) as far as they will go and check that
operation is correct.
Connecting Type 88 (Air to Retract)
No. 6 Actuator (Figure 11)
1. Tightly assemble the hex nuts (1) onto the plug stem.
2. Push down the actuator, and screw on the yoke nut (33) at the
same time. Then assemble the bottom stem connector (2). As
soon as it becomes possible, insert the valve stem into the
actuator stem (10). The stem must be inserted far enough so
that when there is no air in the actuator, the valve plug does
not touch the seat.
3. Tighten the yoke nut (33).
4. Unscrew the valve plug stem until the valve plug comes into
contact with the seat. Do not turn the valve plug on the seat as
this could damage the sealing surfaces.
5. Supply air to the actuator until the stem has travelled at least
.40 inches (10 mm).
6. Unscrew the plug stem by the number of turns N1 specified in
Table 4.
Note: For model 724XX valves, use the N2 values in Table 4 to
ensure seating tightness of the pilot plug.
7. Screw the hex nuts (1) as far as they will go and check that
operation is correct.
8. Use the pointer (7) to set the travel scale (9) to the valve
closed position.
Connecting Type 87 (Air to Extend) No. 10, 16
and 23 Actuators (Figure 11)
1. Tightly assemble hex nut (1) onto the plug stem.
2. Screw the top stem connector (4) assembly tightly onto the
actuator stem (10).
3. Push down the actuator, and screw on the yoke nut (33) at
the same time. Then assemble the bottom stem connector (2)
assembly by screwing until it comes into contact with the hex
nut (1).
4. Push down the actuator and tighten the yoke nut (33).
5. Supply the actuator with air at the initial pressure indicated on
the spring scale.
6. Position the stem connector assembly at distance “X” indicated
in Table 5.
7. Use the pointer (7) to set the travel scale (9) to the valve open
position.
8. Supply the actuator with air at a high enough pressure
to obtain a travel equal to the nominal travel of the valve.
Note: For model 724XX valves, reduce the travel by Value A
indicated in Table 6.
9. With the plug correctly positioned on the seat, unscrew the
bottom stem connector (2) assembly until it comes into contact
with the top stem connector (4). Tighten the socket head cap
screws (5), hex nut (1) and lock nut (32) and check that the
operation is correct.
Connecting Type 88 (Air to Retract) No. 10, 16
and 23 Actuator (Figure 11)
1. Supply the actuator with air to retract stem.
2. Unscrew the top stem connector (4) in accordance with
dimension “X” in Table 5.
3. Tightly assemble hex nut (1) onto the plug stem.
4. Tightly screw the top stem connector (4) assembly onto the
actuator stem (10).
5. Push down the actuator, and screw on the yoke nut (33) at
the same time. Then assemble the bottom stem connector (2)
assembly by screwing until it comes into contact with the hex
nut (1).
6. Push down the actuator and tighten the yoke nut (33).
7. With the plug correctly positioned on the seat, unscrew the
bottom stem connector (2) assembly to bring it into contact
with the top stem connector (4).
8. Supply air to the actuator until the stem has travelled at least
0.40 inches (10 mm).
9. Unscrew the top stem connector (4) by the number of turns N1
specified in Table 4 then lock manually with hex nut (1).
Note: For model 724XX valves, use N2 values in Table 4 to
ensure seating tightness of the pilot plug.
Plug Stem
Diameter
N1
(turn)
N2
844XX
(turn)
in mm
1" 1.25 4.75 0.09 2.3
3/4" 1.25 4.25 0.08 2.0
5/8" 1.5 3.5 0.08 2.0
1/2" 1.5 3 0.075 1.9
Table 4 - Type 88, Air to Retract - valve seating

14 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
10. Release the pressure in the actuator. Use pointer (7) to set the
travel scale (9) to the actuator supply pressure so that the two
stem connectors come into contact. Then tighten the socket
head cap screws (5), hex nut (1), and lock nut (32).
11. Shut off the closed valve pressure and check that operation is
correct.
Table 5 - Position of Top Stem Connector
Table 6 - Auxiliary Pilot Plug Travel
Actuator
Size
Travel “X”Actuator 87 “X”Actuator 88
in mm in mm in mm
10 0.8 20 5.12 130.0 4.62 117.3
10 1.5 38 5.44 138.2
16 0.8 20 8.00 203.2
7.02 178.3
16 1.5 38 8.50 228.6
16 2.0 51 9.28 235.7
16 2.5 63.5 9.50 241.3
23 0.8 20 8.25 209.5
23 1.5 38 8.62 218.9
23 2.0 51 9.12 231.6
23 2.5 63.5 9.59 243.6
Valve Size
(inches) Pressure Rating Value A
in mm
2150, 300 or 600 0.1 2.5
2900 or 1500 0.08 2
3 and 4
150, 300 or 600
900 or 1500
0.12 3
6 0.2 5
8 0.24 6
10, 12 and 16 0.275 7
Item No. Description
1Hex Nut
2Stem Connector, Bottom
3Cap Screw, Hex Head
●4Stem Connector, Top
●5Cap Screw, Socket Head
●6Connector Insert
7Pointer
8Screw, Pan Head
9Scale, Travel
10 Actuator Stem
31 Yoke, Machining
●32 Lock Nut
33 Yoke Nut
Table 7
● Not provided for Size 6 Actuator

Masoneilan 72000 Series Control Valves Instruction Manual | 15
Copyright 2021 Baker Hughes Company. All rights reserved.
Figure 11
Type 87 Air to Close
No. 6
Type 88 Air to Open
No. 6
Model 88 Actuator
Air to Retract (Open)
Model 87 Actuator
Air to Extend (Close)
Type 87 Air to Close
No. 10-16-23
Type 88 Air to Open
No. 10-16-23

16 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Figure 12
Figure 13
Type 51/52/53 Cylinder Actuators
Connecting Double Acting (Model 51)
(Figures 14 & 15)
1. Install actuator on the valve body with drive nut.
2. Connect manual loading panel tubing to the Top Plate (17).
3. Apply required air pressure through the manual loading
panel to completely extend the actuator stem.
4. Reconnect manual loading panel tubing from the Top Plate
(17) to the Yoke (1), which is integrated into the bottom
plate connection.
5. Retract the actuator stem either pneumatically or with a
handwheel approximately .1" (2mm) using the visual stroke
scale as shown in Figure 12.
6. Assemble the Split Clamp (22).
Note: If the split clamp does not engage with both
stems, then retract the actuator stem until alignment and
engagement is achieved.
7. Assemble and tighten Indicator Arm (23), Spring Lock Washers
(25), and Hexagon Bolts (24).
8. Line up the indicator plate (26), with Indicator arm (23) and
check actuator for proper operation.
Connecting Air to Extend (Model 52) (Figure 16)
1. Install actuator on the valve body with drive nut.
2. Connect manual loading panel tubing to the top plate (17).
3. Apply required air pressure through the manual loading
panel to completely extend the actuator stem.
4. Extend the actuator stem either pneumatically or with a
handwheel approximately .1" (2mm) using the visual stroke
scale as shown in Figure 12.
5. Assemble the Split Clamp (22).
Note: If the split clamp does not engage with both
stems, then extend the actuator stem until alignment and
engagement is achieved.
6. Assemble and tighten Indicator Arm (23), Spring Lock
Washers (25), and Hexagon Bolts (24).
7. Line up the indicator plate (26), with Indicator arm (23) and
check actuator for proper operation.
Connecting Air to Retract (Model 53) (Figure 17)
1. Install actuator on the valve body with drive nut.
2. Connect manual loading panel tubing to the yoke (1), which
is integrated into the bottom plate connection.
3. Retract the actuator stem either pneumatically or with a
handwheel approximately .1" (2mm) using the visual stroke
scale as shown in Figure 12.
4. Assemble the Split Clamp (22).
Note: If the split clamp does not engage with both stems,
retract the actuator stem until alignment and engagement
is achieved.
5. Assemble and tighten Indicator Arm (23), Spring Lock
Washers (25), and Hexagon Bolts (24).
6. Line up the indicator plate (26), with Indicator arm (23) and
check actuator for proper operation.
Make sure the valve is fully extended.
Make sure the valve is fully extended.
Make sure the valve is fully extended.