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Masoneilan 78-80H & 08-80H Transfer Valves  Instruction Manual 

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© 2021 Baker Hughes Company. All rights reserved.

7. Maintenance

Rubber is used in various parts of the transfer valve. Periodical exchange of this rubber every five 

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 office for a check or a repair.

 

Part 

Part Name

Material

Qty

1

Body

AC 4B-F CHROMATE

1

2

Housing

ADC 12/CHROMATE

1

3

Plug

SUS303/NBR

1

4

Piston

A2017BE-T6 

 

CHROMATE/NBR

1

7

Spring

SUS304-WPB

1

8

O-Ring

NBR

1

9

O-Ring

NBR

1

10

O-Ring

NBR

1

11

O-Ring

NBR

1

13

Bottom Cap

SUS303

1

14

Filter

SUS304

2

16

Spring Case

ADC12/CHROMATE

1

17

Adjust Knob

VALOX420

1

18

Diaphragm 

Plate

SUS303

1

19

Exhaust 

Orifice

SUS303

1

20

Diaphragm

NBR/DUCRON

1

21

Ball

SUS440C

1

22

Adjust 

Screw

SUS303

1

23

Spring 

Button

SPCC-SD Za-C PLATE

1

24

Spacer

VALOX420

1

25

Spring

SWP B

1

26

Lock Screw

SUS304

1

27

Screw

SUS304

4

28

Screw

SUS304

4

Transfer Valve Model 78-80H

Sectional Drawing

(Standard Specifications)

Summary of Contents for Masoneilan 08-80H

Page 1: ...Masoneilan Model 78 80H 08 80H Transfer Valves Instruction Manual Rev F Baker Hughes Data Classification Public ...

Page 2: ...R 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...

Page 3: ...___________________ 5 2 Specifications_______________________________________ 5 3 Certifications________________________________________ 5 4 Numbering System___________________________________ 5 5 Mounting___________________________________________ 5 6 Adjustment_________________________________________ 6 7 Maintenance________________________________________ 6 ...

Page 4: ...te 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 s...

Page 5: ...nd 9 2 Specifications Item Standard Option Maximum Operating Pressure Body 1 72 MPa Signal 1 03 MPa Set Pressure 100 700 kPa Hysteresis 34 kPa or less Cv Value IN OUT 4 5 OUT EXH 5 0 Connection IN OUT EXH Ports Rc1 2 NPT1 2 SIGNAL Port Rc1 4 NPT1 4 Operating Temperature Range 30 83 C 0 100 C Housing Material Aluminum Alloy 316L Stainless Steel 1 1 When the housing material is 316L stainless steels...

Page 6: ...e capacity This may cause hunting 6 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 26 and turn the adjust knob 17 counterclockwise to release the compression of the spring 25 b Turn the adjust knob 17 one or two...

Page 7: ...ty 1 Body AC 4B F CHROMATE 1 2 Housing ADC 12 CHROMATE 1 3 Plug SUS303 NBR 1 4 Piston A2017BE T6 CHROMATE NBR 1 7 Spring SUS304 WPB 1 8 O Ring NBR 1 9 O Ring NBR 1 10 O Ring NBR 1 11 O Ring NBR 1 13 Bottom Cap SUS303 1 14 Filter SUS304 2 16 Spring Case ADC12 CHROMATE 1 17 Adjust Knob VALOX420 1 18 Diaphragm Plate SUS303 1 19 Exhaust Orifice SUS303 1 20 Diaphragm NBR DUCRON 1 21 Ball SUS440C 1 22 A...

Page 8: ...ing Standard Specifications Part N Part Name Material Qty 1 Body AC2A F CHROMATE 1 2 Head Cap AC2A F CHROMATE 1 3 Plug SUS303 NBR 1 4 Piston A2017BE T6 CHROMATE NBR 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 10 Bottom Cap SUS303 1 11 Screw SUS304 4 12 Nut SUS304 4 ...

Page 9: ...Masoneilan 78 80H 08 80H Transfer Valves Instruction Manual 9 2021 Baker Hughes Company All rights reserved Notes ...

Page 10: ...s bakerhughes com 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 specific implied or oral to the fullest extent permissible by law including those of merchantability...

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