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    Document number 

    NRF-204-PEMEX-2012  Standardization Committee of

    Petróleos Mexicanos and Subsidiary Entities March, 2012  Standardization Technical

    Subcommittee of Pemex Refinacion 

    EMERGENCY BLOCK VALVES

    (REMOTE ACTVATION INSULATION VALVES)  (This reference standard cancels and replaces NRF-204-PEMEX-2008 dated May 18, 2008)

    PAGE 1 of 36 

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    2 Copyright www.pemexenglishlibrary.com

    Petróleos Standardization

    Committee 

    Mexicanos and Subsidiary Entities 

    Emergency block valves

    (insulation valves remote

    activation) 

    NRF-204-PEMEX-

    2012 

    Rev.: 0 

    APPROVAL SHEET 

    This reference standard was approved by the Committee on Standards of

    Petróleos Mexicanos and Subsidiary Entities 01-12 at the special meeting

    held on April 27, 2012.

    Page 2 of 36 

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    PEMEX

    STANDARDIZATION COMMITTEE

    OF PETROLEOS MEXICANOS AND

    ITS SUBSIDIARIES

    EMERGENCY BLOCK VALVES

    (REMOTE ACTIVATION INSULATION

    VALVES)

    NRF-204-PEMEX-2012

    REV. 0

    Page 3 of 33

    3 Copyright www.pemexenglishlibrary.com

    CONTENT 

    CHAPTER PAGE 

    0. INTRODUCTION 4 

    1. OBJECTIVE 5 

    2. SCOPE 5 

    3. APPLICATION FIELD 6 

    4. UPDATE 6 

    5. REFERENCES 6 

    6. DEFINITIONS 8 

    7. SYMBOLS AND ABBREVIATIONS 9 

    8. DEVELOPMENT 11 

    8.1 General 11

    8.2 Valve 13

    8.3 Pneumatic Actuator 19

    8.4 Test Device 21

    8.5 Local Control System for remote manual operation 21

    8.6 Control Stations (Button) field 23

    8.7 Control Stations (Button) in control room 24

    8.8 Accumulator actuator power source 24

    8.9 Tests 25

    8.10 Documentation 26

    8.11 Training 29

    8.12 Packing, packaging and shipment 29

    9. RESPONSIBILITIES 30 

    10. ACCORDANCE WITH INTERNATIONAL OR MEXICAN STANDARDS 31 

    11. REFERENCES 31 

    12. ANNEXES 32

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    PEMEX

    STANDARDIZATION COMMITTEE

    OF PETROLEOS MEXICANOS AND

    ITS SUBSIDIARIES

    EMERGENCY BLOCK VALVES

    (REMOTE ACTIVATION INSULATION

    VALVES)

    NRF-204-PEMEX-2012

    REV. 0

    Page 4 of 33

    4 Copyright www.pemexenglishlibrary.com

    0. INTRODUCTION 

    In particular, the existence of large amounts of oil or hazardous substances with a high potential for explosions, fire

    and / or damage to the health of large magnitudes, requires the presence of process safety systems for the

    prevention and mitigation devices accidental event. This in addition to the emergency actions of the operators and

    the emergency plans of the facility.

    Likewise, it has established a philosophy of safety risks through various "independent protection layers", including the

    presence of independent safety instrumented systems Digital System Monitoring and Control, has taken great importance and is required by several rules international. (IEC-61508-1: 2010 and IEC-61511-1: 2004).

    Typically the safety instrumented system is composed of a set of Safety Instrumented Functions (SIF) and is composed

    of sensors that detect abnormal operating conditions, a logical processor that commands the actions of the FIS and

    final elements, which have activity on the process to prevent or mitigate the risk condition.

    In particular, when the final element is a valve whose function is to isolate equipment, vessels and pipe and / or

    systems for volumes of oil or hazardous substances, they are called Emergency Valve Block (Insulation Valve or

    Remote Activation Insulation Valve operated remotely).

    This is why this Reference Standard Petróleos Mexicanos and Subsidiary Entities establishes the requirements for suppliers or contractors for the supply and tests of emergency block valves (Insulation Valves or Remote Activation

    Operated Insulation Valves Distance) to ensure and maintain their level of reliability to a real demand for action, i.e., to maintain the integrity level (SIL).

    This reference standard was performed taking as support:

    Law of Petroleos Mexicanos, its and Administrative Provisions of Contract Procurement, Leases, Works and Services of the core activities of a productive nature of Petróleos Mexicanos and Subsidiary Entities. Federal Law on Metrology and Standardization and Regulation Law of Public Works and Related Services and its regulations Law of Acquisitions, Leases and Services Public Sector and Regulation General Law of Ecological Balance and Environmental Protection and Regulations

    Guide for Issuing Reference Standards Petróleos Mexicanos and Subsidiary Entities (CNPMOS-001, September 30,2004)

    Oil industry process operation, including its auxiliaries, involves inherent risks due to the presence of flammable and

    highly risky activities under the corrosive, reactive, explosive, toxic and flammable products handled in amounts that,

    in the event of a leak or release are by battery leaks  or explosion would cause a significant impact to the

    environment, people or property.

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    PEMEX

    STANDARDIZATION COMMITTEE

    OF PETROLEOS MEXICANOS AND

    ITS SUBSIDIARIES

    EMERGENCY BLOCK VALVES

    (REMOTE ACTIVATION INSULATION

    VALVES)

    NRF-204-PEMEX-2012

    REV. 0

    Page 5 of 33

    This standard was formed with the participation of specialists from the following units:

      Petróleos Mexicanos.

      PEMEX-Exploración y Producción.

      PEMEX-Gas y Petroquímica Básica.

      PEMEX-Petroquímica.

      PEMEX-Refinación.

      Instituto Mexicano del Petróleo.

    External Participants:

      A GFT Company

      ASCOMATICA S.A de C.V.

      CCA Corporation, S.A de C.V.

      Corporativo de Válvulas DASA, S.A. de C.V.

      Dresser México

      Emerson Process Management S.A. de C.V.

      Equipos y Servicios Vica, S.A. de C.V.

      Flowcontrol, S.A. de C.V.

      FT Ingeniería de Fluidos S.A. de C.V.

      Global Flow Technologies

      Integración de Sistemas de Actuación, S.A. de C.V. Luis Borioli, S.A. de C.V.

      Metso Automation   Puffer-Zwick

      Rawson Mexicana

      Rotork Servo Controls de México, S.A. de C.V.

      Tecsite, S.A. de C.V.

      Tyco Valves & Controls de México, S.A. de C.V.

      Walworth Válvulas, S.A. DE C.V.

      Xomox Chihuahua, S.A. de C.V.

    1. OBJECTIVE 

    To establish the technical and documentary requirements for the acquisition of Block Valves Emergency (Activation

    Insulation Valves Insulation Valves Remote or Remote Operated) to isolate oil or hazardous substances in workplaces and facilities of PEMEX.

    2. SCOPE 

    This reference standard establishes the technical and documentary check valves pneumatic Emergency operation,

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    PEMEX

    STANDARDIZATION COMMITTEE

    OF PETROLEOS MEXICANOS AND

    ITS SUBSIDIARIES

    EMERGENCY BLOCK VALVES

    (REMOTE ACTIVATION INSULATION

    VALVES)

    NRF-204-PEMEX-2012

    REV. 0

    Page 6 of 33

    including: valve tester, pneumatic actuator, actuator manual, "tubing" and patch cable), its control system and control stations (keypads), and can be purchased separately.

    This reference standard cancels and replaces NRF-204-PEMEX-2008 dated May 18, 2008.

    3. SCOPE 

    This reference standard is generally applicable and mandatory in the purchase or rental of goods and services

    covered by the same, conducting workplace of Petróleos Mexicanos and Subsidiary Entities. For what must be included in procurement procedures: public tender invitation to at least three people or direct award as part of the

    requirements to be fulfilled by the supplier, contractor or bidder.

    4. UPDATE 

    This reference standard must be reviewed and where necessary change at least every five years or sooner if the

    suggestions or recommendations for changes warrant.

    Suggestions for the review and updating of this policy must be forwarded to the Secretary of the Technical Standards Subcommittee of PEMEX Refining, who must schedule and perform the update according to the origin of them and where appropriate, include it in any Annual Program Standardization of Petróleos Mexicanos and Subsidiary Entities.

    Proposals and suggestions for change must be made in the format CNPMOS-001-A01, of the Guide to Reference

    Emission Standards CNPMOS-A01, Rev. 1, September 30, 2004 and write to:

    PEMEX-Refining

    Standardization Technical Subcomité PEMEX-Refining Piso 2, Building "B-2"

    Av. Marina Nacional 329

    Col. Petroleos Mexicanos

    11311, Mexico, D. F. Direct phones: 5250-2756 and 5203-4083; Switchboard: 1944-2500, Length: 53,107 Email: antonio.alvarez @ pemex.com. 

    5. REFERENCES 

    ISO 10434:2004 5.1. Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries.

    5.2 IEC 61508-2:2010. Functional Safety of Electrical / Electronic / P