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2  |  GE Oil & Gas

© 2016 General Electric Company. All rights reserved.

1. General Information

The following instructions are designed to assist maintenance 
personnel in performing most of the maintenance required on 
the 173 Series regulators, and if followed carefully, will reduce 
maintenance time.

GE has highly skilled Service Engineers available for start-up, 
maintenance and repair of our regulators and component 
parts. In addition, regularly scheduled training programs are 
conducted to train customer service and instrumentation 
personnel in the operation, maintenance and application 
of our control valves, regulators and instrumentation. 
Arrangements for these services can be made through your GE  
Representative or District Office. When performing maintenance 
,use only genuine GE replacement parts. Parts are obtainable 
through your local GE Representative or District Office. When 
ordering parts always include the MODEL and SERIAL NUMBER of 
the unit being repaired. 

2. Transport, Storage and Handling

Transport

Depending on their size, regulators can be transported loose or 
packed, in cardboard boxes or in wooden crates.

All the regulator ends are fitted with covers to prevent dirt from 
entering. Units can be placed on pallets if required. Follow all 
instructions noted on the packaging.

Operators moving loads must take all necessary precautions to 
prevent accidents.

Storage

Regulators must be kept in a dry place to protect them from 
atmospheric conditions. They may only be removed from their 
crates or packing immediately prior to installation.

The end protections and covers must be kept on until installation. 
Regulators, whether packed or not, must not be subject to impact.

Regulators, whether packed or not, must always be kept 

 

upright, that is, never lying on one side, in order to prevent 
distortion and damage to internal parts.

Handling

When unpacking the regulators and removing the end protectors 
immediately prior to installation, take great care to make sure 
that foreign material does not enter the regulator inlet and outlet 
ports while it is being connected.

 

When handling the regulator, make sure the work area is 

 

kept clear in order to prevent injury to people and damage to 
property.

1st

1

2nd

7

3rd

3

1st

X

2nd

X

3rd

X

4th

X

Option

X

Regulator Series

Action

1 Relieving 
  Metal Seat

2 Relieving 
  Soft Seat

Action

50 Differential 
 Pressure

Diaphragm

1 Metal 
 Diaphragm

2 Elastomeric 
 Diaphragm

Trim Size

01

05

08

10

12

16

20

35

45

Summary of Contents for Masoneilan 173 Series

Page 1: ...GE Oil Gas Masoneilan 173 Series Self Operating Pressure Regulators Instruction Manual GE Data Classification Public ...

Page 2: ...HE 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 CUS...

Page 3: ...d Handling 2 3 Installation and Assembly Instructions 173 Series Pressure Regulator 3 1 Cross Section Drawing 3 3 2 Installation 4 3 3 Start Up and Calibration 4 3 4 Maintenance 5 4 Installation and Assembly Instructions 173 50 Differential Pressure Regulator 4 1 Cross Section Drawing 173 50 Single Diaphragm 6 4 2 Cross Section Drawing 173 50 Double Diaphragm 7 4 3 Installation 8 4 4 Start Up and ...

Page 4: ...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 GE s written permission Please report any errors orquestions about the information in this manual to your local supplier Theseinstructio...

Page 5: ... All the regulator ends are fitted with covers to prevent dirt from entering Units can be placed on pallets if required Follow all instructions noted on the packaging Operators moving loads must take all necessary precautions to prevent accidents Storage Regulators must be kept in a dry place to protect them from atmospheric conditions They may only be removed from their crates or packing immediat...

Page 6: ... with part names and versions ATEX Construction Gr II Cat 2 Ref Part Name 1 Blindhead 2 Gasket Set 3 Body 4 Guide 5 Diaphragm Case 6 Ball 7 Diaphragm Plate Upper 8 Diaphragm 9 Protector optional 10 O Ring 11 Spring Case 12 Spring 13 Adjusting Screw 14 Lock Nut 15 Spring Button 16 Nut 17 Spring Guide 18 Screw 19 Nut 20 Diaphragm Plate Lower 21 Screw 22 Plug 23 Ring 24 Disc 25 Seat 26 Screw 27 Gaske...

Page 7: ... to decrease the pressure setting During regulator start up or operation do not touch any part of the regulator as this can conduct heat if the fluid used is at a high temperature 3 2 Installation 3 2 1 173 Series regulators must be installed with the actuator 2 facing upwards and the diaphragm perfectly horizontal as shown in Fig 6 In pressure reducing applications regulating very low down stream...

Page 8: ...his may damage important sliding parts 3 4 Maintenance 3 4 1 The required maintenance interval varies depending on application The user must establish a suitable interval based on the operating conditions Prior to disassembly remove all system pressure from the regulator Before starting the above operation make sure the recommend ed spare parts are available refer to the parts list indicated in Fi...

Page 9: ... a single diaphragm as shown in Figure 9 one of the controlled pressures acts under the diaphragm through an internal sensing line connection on the spring housing The plug is kept closed by the spring Ref Part Name 1 Blindhead 2 Gasket Set 3 Body 4 Guide 5 Diaphragm Case 6 Diaphragm Plate Upper 7 Diaphragm 8 O Ring 9 Spring Case 10 Spring 11 Nut 12 Screw 13 Gasket 14 Lock Nut 15 Packing Gland 16 ...

Page 10: ...nsing line connection and over the upper diaphragm through a sensing line nipple on the spring housing The plug is kept closed by the spring Figure 10 Ref Part Name 1 Blindhead 2 Gasket Set 3 Body 4 Guide 5 Diaphragm Case 6 Diaphragm Plate Upper 7 Diaphragm 8 O Ring 9 Spring Case 10 Spring 11 Nut 12 Screw 13 Gasket 14 Packing Gland 15 Lock Nut 16 Bearing 17 Spring Button 18 Adjusting Screw 19 Spri...

Page 11: ... pressure for the installation a safety relief valve must be installed upstream without an isolation valve in between in order to discharge the entire flow crossing the differential pressure regulator 4 3 7 Pressure Drops Because the regulated pressure sensing port is located inside the regulator the pressure drops in the inter connecting piping between the regulator and the point of use will affe...

Page 12: ... to be restored by lapping using a metal disc and abrasive paste The diaphragm should be replaced if it shows any damage The same applies to the Teflon diaphragm protector if included Gaskets should not be reused If preferred the regulator may be returned to an authorized GE repair center to be reconditioned 4 5 4 Reassembly Carry out the disassembly operations in reverse order Push the stem of th...

Page 13: ...10 GE Oil Gas 2016 General Electric Company All rights reserved ...

Page 14: ...Masoneilan 173 Series Pressure Regulator Instruction Manual 11 2016 General Electric Company All rights reserved ...

Page 15: ...12 GE Oil Gas 2016 General Electric Company All rights reserved ...

Page 16: ...of their respective owners 2014 General Electric Company All rights reserved Visit our web site www fr eps com E P S FRANCE 24 bis rue de Picpus 75012 PARIS Tel 33 0 762 682 291 Tel 33 0 650 590 965 ventes fr eps com E P S CAMEROON Immeuble Carré d Or Rue Soppo Priso Côté Chococho Bonapriso DOUALA Tel 237 6 52 12 70 95 Tel 33 0 782 006 276 ventes fr eps com ...

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