Baker Hughes Masoneilan 73000 Series User manual

Masoneilan™
73000 Series
Sweep Angle Control Valves
Models XX-73471
Instruction Manual (Rev.A)
Baker Hughes Data Classication : Public

ii | Baker Hughes Copyright 2020 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 73000 Series Control Valves Instruction Manual | 1
Copyright 2020 Baker Hughes Company. All rights reserved.
Table of Contents
Safety Information.....................................................................................................................2
About this Manual .....................................................................................................................2
1. Installation..............................................................................................................................3
2. Maintenance...........................................................................................................................3
2.1. Disassembly....................................................................................................................3
2.2. Polishing the Valve Seat .................................................................................................3
2.3. Reassembly ....................................................................................................................3
2.4. Packing Box ....................................................................................................................4
3. Drawing and Parts References.............................................................................................5

2 | Baker Hughes Copyright 2020 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 specifically for the 73000
Series control valve, and do not apply for other valves
outside of this product line.
Useful Life Period
The current estimated useful life period for the 73000 Series
control valve is 25+ years. To maximize the useful life of the
product, it is essential to conduct annual inspections, routine
maintenance and ensure proper installation to avoid any
unintended stresses on the product. The specific operating
conditions will also impact the useful life of the product. 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.
Note: Prior to installation:
• The valve must be installed, put into service and maintained
by qualified and competent professionals who have
undergone suitable training.
• All surrounding pipe lines must be thoroughly flushed to
ensure all entrained debris has been removed from the
system.
• 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.
• Changes to specifications, structure, and components used
may not lead to the revision of this manual unless such
changes affect the function and performance of the product.

Masoneilan 73000 Series Control Valves Instruction Manual | 3
Copyright 2020 Baker Hughes Company. All rights reserved.
1. Installation
Prior to installing the valve, clean the pipeline of all foreign matter
such as dirt, spatters (welding chips), scale, oil or grease. Install
the valve in the pipeline so that the fluid flows in the direction
indicated by the flow arrows attached to the body, or the fluid
flows from “IN” toward “OUT” marked at the connection point.
When securing the lower flange to the pipeline, press the seat
ring against the body until it touches the flange surface of the
pipeline. The lower flange and the pipeline pinch the seat ring
and the pipeline’s gasket which is prepared in advance, and
tighten the pipeline bolts rigidly.
If the valve is installed in a horizontal position, be sure to take the
support from the yoke or other part of the actuator.
In case of the extension type bonnet, do not apply insulation to
the extended portion.
Provide the required air tubing for the signal pressure and air
supply, and the electrical wiring to the positioner. Make sure no
air leaks from the air pipeline.
2. Maintenance
When the control valve needs to be disassembled for inspection,
cleaning or polishing the valve seat, follow the procedures
described below.
It explains the following procedure as an example of the attached
drawing (MNS-148001).
2.1. Disassembly
Shut off all air supplies, disconnect the tubing for the air supply
and the positioner signal pressure, and the air tubing from the
volume tank.
To disassemble the valve, it must be removed from the piping.
Bring a chain block over the valve to remove it from the piping for
disassembly and reinstall it after reassembly.
1) Run a strong rope through the actuator yoke and remove
the valve retaining bolts from the piping while slightly pulling
the valve upward.
If the valve is installed in a horizontal position, also run a
rope around the body so that no lopsided force is exerted on
the valve, when disconnecting the valve from the pipeline.
2) Seat ring (12) and gasket (11) can be taken apart, after the
valve body is removed from the pipeline. At this time, pay
attention not to be damaged with the seat ring.
3) Remove the positioner linkage from the split clamp (18)
which connects the piston rod (19) of actuator and the plug
(13) of the body side.
4) Loosen the nut (16) or bolt (26) of the split clamp (18) in
order to remove the split clamp (18).
Take the record on the depth of insertion of the stem and the
position of the split clamp so that they can be reassembled
to the same dimension.
5) Remove the seat ring (12) first from the bottom of the body.
The actuator can also be removed by loosening the drive
nut (5) which connects the body (10) and the yoke (14).
However, in case of the stud and nut type connection that
connects the yoke to the body by the stud (23) and nut (24),
loosen the nut (24) to remove the actuator from the body.
Remove the packing flange (3) and the packing follower
(4), after loosening and removing the stud nut (2) which
have tightened the packing flange. In the case of keeping
connecting the valve body and the yoke, the packing flange
can be passed through the space between the bottom end
of the piston rodand the upper end of plug. If the space is
narrow, it can be extended by pushing down the plug or
raising the piston rod by hand-wheel operation.
6) Dismantle the plug (13) from the bottom of the body (10).
Note: The disassembly is completed by dismantling the
packings (6), packing spacer (8), lantern ring (9) and
guide bushing (7).
7) Inspect for any damages to each component parts.
Note: As the assembly procedure for packing box may
vary with the type of valve, please refer to the respective
assembly drawings.
2.2. Polishing the Valve Seat
When the valve seat needs polishing, install the seat ring (12)
and plug (13) from the bottom of the body (10), attaching them
tentatively to the body hand-tight, lightly press the plug (13)
against the seat side from the bottom of the body (10), hold
the plug with a wrench applied to the wrench holder, and polish
the seating surface. Do not polish the seating surface too hard,
otherwise it may be damaged. When polishing the seating
surface, apply a fine-grain, quality abrasive to it. Thoroughly
clean the seating surface prior to reinstallation.
2.3. Reassembly
Reassemble the valve according to the following procedure after
having completed the necessary maintenance.
Please note that new packings and gaskets should be prepared
for re-assembly.
1) Clean all the gasket surfaces of the body and the seat ring.
2) Set the guide bushing (7) toward the packing box bottom of
the body (10).
3) Insert the plug (13) from the bottom of the body (10). Set the
seat ring without the gasket. Stand up the body.
4) Install the packings (6), packing spacer (8), and lantern ring
(9), leaded by the stem of plug (13) and yet the amount of
packings and the order of packings are specified by each
valve. When installing the packings which have the cut
ends, they have to be staggered 120 degrees with respect
to each other.
5) Regarding the installation of the packing follower (4) and
of packing flange (3), follow the reverse of the disassembly
procedure. Refer to the section 3-1 – point 5.
6) Mount the actuator on the body. At this time, follow the
reverse of the disassembly procedure. Refer to the section
3-1 - point 5.
7) Move down the piston until it stops whether by applying air
pressure in the upper part of the actuator piston or by hand-
wheel operation.
8) Couple the piston rod (19) to the plug (13) with the split clamp
(18). When coupling, confirm that the threads of piston rod
and plug are completely engaged with each split clamp. It
will be useful that you were marking before disassembling.
Lightly tighten the nut (16) or bolt (26) of split clamp at the
position being completely engaged.

4 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
9) Raise the plug whether by applying air pressure to the piston
bottom of the actuator or by hand-wheel operation. At that
time, the plug is kept away from the seating surface. And
then rotate the plug at a half turn counterclockwise in order
to get completely the seating force. You can use the record
made at the time of disassembly to provide the seating
clearance.
10) Tighten the nut (16) or bolt (26) of the split clamp.
11) Connect the linkage of positioner to the split clamp (18).
12) Install the body to the pipeline per installation procedures.
Do not forget to install gasket between the seat ring and the
body at this time.
13) Reinstall all the air tubing and electric wiring. With the above,
re-assembly is completed, but you must confirm the valve
function by checking the valve actuation, valve opening, etc.
prior to start-up.
2.4. Packing box
Maintenance of the packing box is a routine work.
The sealing performance of packing is kept by compression
of packing. Compression is obtained by evenly tightening the
packing flange stud nut (2) for the packing flange (3), but pay
attention to that it may disturb smooth actuation of valve when
tightened too much. New packings are necessary when leak
does not stop even if complete compression made.

Masoneilan 73000 Series Control Valves Instruction Manual | 5
Copyright 2020 Baker Hughes Company. All rights reserved.
3. Drawing and Parts References

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Contact your Baker Hughes representative for the most current information. The Baker Hughes logo and
Masoneilan are trademarks of Baker Hughes Company. Other company names and product names used in
this document are the registered trademarks or trademarks of their respective owners.
BHMN-73000-IOM-32034A-0820 08/2020
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