Baker Hughes Masoneilan 78-80S User manual

Masoneilan™
Model 78-80S & 08-80S
Transfer Valves
Instruction Manual (Rev. B)
Baker Hughes Data Classification : Public

2 | Baker Hughes © 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 78-80S & 08-80S Transfer Valves Instruction Manual | 3
© 2021 Baker Hughes Company. All rights reserved.
Table of Contents
1. Overview __________________________________________ 5
2. Specications ______________________________________ 5
3. Certications _______________________________________ 5
4. Mounting __________________________________________ 5
5. Adjustment_________________________________________ 6
6. Maintenance _______________________________________ 6

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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
Model 78-80S and Model 08-80S transfer valve,
and do not apply for other valves outside of this
product line.
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 specications
without notice.
Note - prior to installation:
• The valve must be installed, put into service
and maintained by qualied and competent
professionals who have undergone suitable
training.
• All surrounding pipelines must be thoroughly
ushed 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 specications, structure, and
components used may not lead to the revision
of this manual unless such changes aect the
function and performance of the product.
•

Masoneilan 78-80S & 08-80S Transfer Valves Instruction Manual | 5
© 2021 Baker Hughes Company. All rights reserved.
1. Overview
The Model 78-80S is a transfer valve combining a pilot valve of the oating ball type and three-port
valve into one unit and is a standard-capacity three-way transfer valve of a set pressure regulating type.
The other model 08-80S, is the same as the 78-80S except that a pilot valve is not combined and is
the so-called three-way transfer valve. If several 78-80S are needed, one 78-80S can be installed,
connecting 08-80Ss to it by mating the pilot outlet pressure (“SIG.OUT”) on the 78-80S to “SIG” on the
08-80S to simplify piping and achieve transfer.
The structures of these models are shown on pages 8 and 9.
2. Specications
• Maximum operating pressure
Body 1.72 Mpa
Signal part 1.03 Mpa
• Set pressure range: 100kPa to 700kPa
• Hysteresis: 34kPa or less
• CV value
IN→ OUT 0.8
OUT→EXH 1.3
• Connection
IN, OUT, EXH and SIGNAL connection ports: Rc 1/4 (Option NPT 1/4)
• Operating temperature range: -30°C to +83°C (option: 0°C to +100°C)
3. Certications
This instrument is certied in:
• Azerbaijan (AzSERTCENTER) • Russian Federation (CU-TR Ex)
• Armenia • Uzbekistan (UZSTANDART)
• Belarus • China (China Ex)
• Kazakhstan • and is also ATEX compliant.
4. Mounting
Clean all the pipes before mounting the valve and completely remove dust, scale and other foreign
matter. Mount the transfer valve as close to the actuator as possible and let air ow toward the IN and
OUT marks located on the lower side of the body. When using the valve as a lock-up valve, put a blind
plug in the EXH port.
Two air connection ports to the pilot part are provided on the 78-80S, one being marked SIG and the other,
SIG OUT. Connect the signal pressure to the port marked SIG. Use SIG.OUT for sending signal to the 08-
80S when it is also mounted.
The transfer valve functions to cut o󰀨 IN and to connect OUT to EXH when the signal pressure lowers
below the set pressure or is reduced to zero.
Do not use signal pressure at air pressure exceeding 1.03Mpa (10.5kgf/cm2).
Feeding signal pressure from near the IN side of the body will cause uctuations in signal and air
pressures. This may cause hunting.

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5. Adjustment
The necessary settings of the transfer valve are generally performed at the factory and adjustment of
it is not required. If, however, the setting pressure needs to be adjusted, make adjustment as follows:
a) Loosen the lock screw (23) and turn the adjust knob (14) counterclockwise to release the
compression of the spring (22).
b) Turn the adjust knob (14) one or two turns clockwise to tighten it and to slightly compress the
spring (22).
c) Connect air pressure to “IN” marked on the body to check whether the body is open or closed.
Then connect the pressure gauge and pressure reducing valve to the signal pressure connection
port SIG.
d) Apply supply air pressure and set the air pressure to SIG at specied pressure by operating the
pressure reducing valve while watching air pressure to SIG on the pressure gauge.
e) Turn the adjust knob (14) clockwise until air pressure no longer leaks through “OUT” marked on
the body.
f) This will cut o󰀨 IN, and OUT and EXH will open in the transfer valve.
g) Lastly, fasten the lock screw (23) and x it.
The ball (18) temporarily oats to transfer the pilot part and the valve emits a light beat tone
when the set and signal pressures become the same. This is not an anomaly. The beating
sound will stop when the transfer ends.
6. Maintenance
Rubber is used in various parts of the transfer valve. Periodical exchange of this rubber every ve
years is recommended. Your valve will be checked and repaired at our factory if a check or a repair
becomes necessary. Contact our agent or sales o󰀩ce for a check or a repair.

Masoneilan 78-80S & 08-80S Transfer Valves Instruction Manual | 7
© 2021 Baker Hughes Company. All rights reserved.
Transfer Valve Model 78-80S
Sectional Drawing

8 | Baker Hughes © 2021 Baker Hughes Company. All rights reserved.
Part N° Part Name Material Qty
1 Body ADC 12/ANODIZE 1
2 Housing ADC 12/CHROMATE 1
3 Plug SUS303/NBR 1
4 Piston ADC12/CHROMATE 1
5 Spring SUS304-WPB 1
6 O-Ring NBR 1
7 O-Ring NBR 1
8 O-Ring NBR 1
9 O-Ring NBR 1
11 Bottom Cap ADC12/CROMATE 1
12 Filter SUS304 2
13 Spring Case ADC12/CHROMATE 1
14 Adjust Knob VALOX420 1
15 Diaphragm Plate SUS303 1
16 Exhaust Orice SUS303 1
17 Diaphragm NBR/POLYESTER 1
18 Ball SUS440C 1
19 Adjust Screw SUS303 1
20 Spring Button SPCC-SD 1
21 Spacer VALOX420 1
22 Spring SWP B 1
23 Lock Screw SUS304 1
24 Screw SUS304 4
25 Screw SUS304 8

Masoneilan 78-80S & 08-80S Transfer Valves Instruction Manual | 9
© 2021 Baker Hughes Company. All rights reserved.
Transfer Valve Model 08-80S
Sectional Drawing
Part N° Part Name Material Qty
1 Body ADC 12/ANODIZE 1
2 Head Cap ADC 12/CHROMATE 1
3 Plug SUS303/NBR 1
4 Piston ADC12/CHROMATE 1
5 Spring SUS304-WPB 1
6 O-Ring NBR 1
7 O-Ring NBR 1
8 O-Ring NBR 1
9 O-Ring NBR 1
11 Bottom Cap ADC12/CROMATE 1
24 Screw SUS304 4
25 Screw SUS304 4
26 Nut SUS304 4

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Copyright 2021 Baker Hughes Company. All rights reserved. Baker Hughes provides this information on an
“as is” basis for general information purposes. Baker Hughes does not make any representation as to the
accuracy or completeness of the information and makes no warranties of any kind, specic, implied or oral,
to the fullest extent permissible by law, including those of merchantability and tness for a particular purpose
or use. Baker Hughes hereby disclaims any and all liability for any direct, indirect, consequential or special
damages, claims for lost prots, or third party claims arising from the use of the information, whether a claim
is asserted in contract, tort, or otherwise. Baker Hughes reserves the right to make changes in specications
and features shown herein, or discontinue the product described at any time without notice or obligation.
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-78-80S-08-80S-IOM-33103B-1121 11/2021 bakerhughes.com