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1  |  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 

Regulator 

models 525 and 526

, and do not apply for other equipment 

outside of this product line.

Useful Life Period

The current estimated useful life period for the 

Regulator models 

525 and 526 

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

Содержание Masoneilan 525 Seris

Страница 1: ...Masoneilan 525 526 Series Reducing and Back Pressure Regulators Instruction Manual Rev C Baker Hughes Data Classification Public ...

Страница 2: ...ICULAR 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 PUR...

Страница 3: ...dy Disassembly 3 6 1 525 Reducing Service 3 6 2 526 Back Pressure Service 3 7 Maintenance Repair 4 7 1 Failure to shut off 4 7 2 Bushing Removal 4 7 3 Lapping Seats 4 7 3 1 525 Reducing Service 4 7 3 2 526 Back Pressure Service 5 7 4 Pinning 5 7 5 Packing Box 5 7 5 1 Carbon PTFE Rings Standard 6 8 Valve Body Reassembly 6 8 1 525 Reducing Service 6 8 2 526 Back Pressure Service 7 9 Actuators 7 9 1 ...

Страница 4: ...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 Regulator models 525 and 526 and do not apply for other equipment outside of this product line Useful Life Period The current estimated useful life period for the Regulator models 525 and 526 is25 year...

Страница 5: ...essories have their own instruction manuals that provide information and details on the assembly and installation Refer to the appropriate instruction manual for each unique accessory 2 General These installation and maintenance instructions apply to all sizes and ratings of the Masoneilan 525 526 model regulators regardless of the type of trim used 525 526 model double seat regulators are designe...

Страница 6: ...lve and vent the process pressure 6 1 525 Reducing Service After removing the actuator disassemble the body using the following procedure A If there is a leak detector connection on the lateral NPT port of the bonnet disconnect this piping as well B Remove body stud nuts 21 C Remove bonnet 10 and plug stem 5 and plug 4 sub assembly together as one unit Note Spiral wound body gaskets 22 are standar...

Страница 7: ... the plug and stem sub assembly must be concentric See pinning operation section 8 4 7 3 1 525 Reducing Service 1 CIean body gasket surface areas 2 When seats have been removed insure that the sealing surfaces in the body bridge and the threads are thoroughly cleaned Note A sealant compatible with the process should be applied sparingly to the seat ring threads and sealing shoulder 3 lnstall and t...

Страница 8: ...meter proceed as follows Note While pinning is being performed care must be taken not to damage the seating surface and plug guides A Using a drift punch drive out the old pin 8 Note If it is necessary to drill out the pin a drill somewhat smaller than the pin should be used and the remainder of the pin driven out B Unscrew the plug from the stem counter clock wise C Measure threaded portion of th...

Страница 9: ...h proper bolt torque Refer to Table 1 for proper bolt torque and tightening sequence specifica tions F Carefully install plug and stem assembly carefully inserting lower guide into lower bushing Note Valve should be lapped before final assembly See Section 8 3 G Install body gasket 22 Note Spiral wound body gaskets 22 are standard in the 500 Series design It is imperative that a new gasket be inst...

Страница 10: ... optional lubricator connection Refer to Section 8 5 for proper packing assembly procedure for standard or optional designs J Install packing follower 12 and packing flange 13 K lnstall packing flange stud nuts 15 Do not over tighten See Section 8 5 Packing Box L If a leak detection connection was installed connect it on the lateral NPT port in the bonnet If not insure that the 1 4 NPT plug remain...

Страница 11: ...34 55 75 5 7 600 8 13NC 2A 25 34 55 75 5 7 3 80 150 300 8 5 8ʺ 11NC 2A 45 61 89 120 10 14 600 8 5 8ʺ 11NC 2A 45 61 89 120 10 14 4 100 150 300 8 ʺ 10NC 2A 80 108 170 230 20 27 600 8 ʺ 10NC 2A 80 108 170 230 20 27 Notes 1 Do not exceed Maximum Torque values listed 2 Tighten in increments until required torque levels are reached 3 Reject assembly if metal to metal contact is not achieved after reachi...

Страница 12: ...e Ref Part Name Ref Part Name 1 Body 10 Bonnet 17 Lantern Gland Optional 2 Upper Seat Ring 11 Drive Nut 18 Plug Stem Locknut 3 Lower Seat Ring 12 Packing Follower 19 Body Stud 4 Plug 13 Packing Flange 21 Body Nut 5 Plug Stem 14 Packing Stud 22 Gasket 8 Plug Pin 15 Packing Nut 23 Guide Bushing 9 Blind Head 16 Packing Recommended Spare Part ...

Страница 13: ...Masoneilan Regulators Models 525 526 Manual 10 Copyright 2020 Baker Hughes Company All rights reserved Notes ...

Страница 14: ...11 Baker Hughes Copyright 2020 Baker Hughes Company All rights reserved Notes ...

Страница 15: ...Masoneilan Regulators Models 525 526 Manual 12 Copyright 2020 Baker Hughes Company All rights reserved Notes ...

Страница 16: ...rent 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 525 526 IOM 31664C 0320 03 2020 Direct Sales Office Locations Find the nearest local Channel Partner in your area valves bakerhughes com contact us valves bakerhughes com ...

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