Nrf 204 Pemex 2012.English

8/18/2019 Nrf 204 Pemex 2012.English

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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)

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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


(REMOTE ACTIVATION INSULATION

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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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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 greatimportance 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 forsuppliers 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 Servicesof the core activities of a productive nature of Petróleos Mexicanos and Subsidiary Entities.Federal Law on Metrology and Standardization and RegulationLaw of Public Works and Related Services and its regulationsLaw of Acquisitions, Leases and Services Public Sector and RegulationGeneral 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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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 workplacesand facilities of PEMEX.

2. SCOPE

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


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including: valve tester, pneumatic actuator, actuator manual, "tubing" and patch cable), its control system andcontrol 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 beincluded 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 StandardsSubcommittee of PEMEX Refining, who must schedule and perform the update according to the origin of them andwhere 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-RefiningPiso 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: 53,107Email: 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 / Programmable Electronic Safety-Related Systems -

Part 2: Requirements for E / E / PE Safety-Related Systems Edition 2.0, 2010-04

3.5 IEC 61511-1:2004. Functional safety-instrumented systems Safety for the Process Industry Sector Part

1: Framework, definitions, systems, hardware and software Requirements-First Edition, Corrigendum 1:11 / 2004

5.4 ISO 5208:2008. Industrial Valves-Pressure tests of metallic valves. 8.1.2008 Third Edition

mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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5.5 ISO-5752: 1982. Metal flanged valves for use in pipe systems-Face-to-face and center-to-face dimensions.

Second edition-1982-06-01

5.6 ISO 6708:1995. Pipework Components - Definition and Selection of DN (Nominal Size) Second Edition:

1995

5.7 ISO 9712:2005. Non-destructive tests - Qualification and certification of personnel, Third edition 2005 -02-15, Corrected 2005-03-15.

5.8 ISO-10497: 2010. Tests of valves-Fire type-tests requirements. 01.15.2010 Third edition

5.9 ISO-14313:2007. Petroleum and natural gas industries-Pipeline transportation systems-Pipeline valves.

12/15/2007 Second edition

Part 2: Production acceptance test of valves. First edition 08.15.2006

5.12 ISO-15156:2009. Petroleum and natural gas industries-Materials for use in H2S-containing environments in

oil and gas production - Part 1 Cor. 1-2005, Cir. 1-2007: General principles for selection of cracking-resistant

materials - Part 2 Cor.1-2005, Cir. 1-2007: Cracking-resistant steels Carbon and low alloy, and the use of cast irons -Part 3 Cor.1-2005-2005 Cor.2, Cir. 1-2007, and Cir. 2-2008: Cracking-resistant CRAs

5.13 NMX-B-482-1991. Training, qualification and certification of NDT personnel.

5.14 NMX-CC- IMNC-9001-2008. Management systems Quality requirements.

5.15 NOM-004-STPS-1999. protection and safety systems and devices on machinery and equipment used in the

workplace.

NOM-008-16.5-2002 SCFI. "Measurement unit’s general system ".

5.17 NOM-018-STPS-2000. System for the identification and communication of hazards and risks from hazardous

chemicals in the workplace.

5.18 NOM-026-STPS-2008. Safety and hygiene, and risk identification by fluids conducted in pipes.

5.19 NRF-009-PEMEX-2004. Identification of products transported by pipeline or storage tank contents.

5.20 NRF-028-PEMEX-2010. Design and construction of pressure vessels.

5.21 NRF-032-PEMEX-2012. Pipe threads in Industrial Plants - Design and Specifications

Materials.

5.22 NRF-036-PEMEX-2010. Classification hazardous area and selection of electrical equipment.

5.11 ISO-15848-2: 2006. Industrial valves-Measurement, test and qualification Procedures for leak Emissions-

5.10 ISO-15848-1:2006. Industrial valves-Measurement, test and qualification Procedures for Leak Emissions-

Part 1: Classification system and qualification Procedures for type tests of valves. First edition

15/1.2006.


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5.23 NRF-045-PEMEX-2010. Safety Functional - Safety Instrumented Systems - For

Processes Industrial Sector.

5.24 NRF-048-PEMEX-2007. Design electrical installations in industrial plants.

5.25 NRF-049-PEMEX-2009. Inspection of goods and services.

5.26 NRF-053-PEMEX-2006. Systems based corrosion protection coatings for surface installations.

5.27 NRF-111-PEMEX-2012. Equipos measurement and metrological services.

5.28 NRF-152-PEMEX-2006. Actuators for valves.

5.29 NRF-164-PEMEX-2011. Manometers.

6. DEFINITIONS

6.1 Reliability. Probability a system that can perform a function defined under specified conditions for a period of

time.

6.3 DN (Nominal Diameter). Diameter alphanumeric designation for components of a piping system which is used

for reference purposes, this comprises DN followed by a dimensionless integer which indirectly relates to physicaldiameter in millimeters (as stipulated in ISO 6708:1995).

6.4 Equivalent Normative Document. En compliance with the provisions of Annex 12.5 of this

Standard Reference.

Overseas Regulatory Document 6.5. Policy document issued by foreign standards, applicable in their country of

origin.

6.6 Internal valve ("Trim"). Internal designation for such as a valve closure element (flap, ball hinge male plug, etc.),

seat ring, box, stem and parts that connect stem with closing element, bushings or weld deposit , among others.

6.7 Integrity Level (SIL, for its acronym in English). is a discrete level for specifying integrity requirements of safety

instrumented functions to be assigned to safety instrumented systems.

6.9 Hydrostatic Test or valve body. is test pressure exceeding the working pressure of the valve in order to validate

the integrity of the valve mechanics.

6.10 Safety Instrumented systems. System composed of sensors, logic solvers and final elements intended to

bring the process to a safe state when predetermined conditions are violated.

6.8 Tightness test or closed valve. is test pressure valve closed, in order to validate the leak through the closure

mechanisms of the valve.

6.2 Zero seat leak. No visible leaks (drops or bubbles) in the duration of the test.


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6.11 hazardous substances. Are those that by their physical and chemical properties, presents the possibility ofhealth hazards, flammability, reactivity and special that can affect the health of exposed people or cause damage to

the facilities or the environment. Which are classified by their degree of risk as established in NOM-018-STPS-2000.

6.12 Emergency block valve. Block valve open / closed (ON / OFF) of fluids to control a hazardous occurrence,

these valves are for emergency insulation and are designed to stop the uncontrolled discharge of flammable or toxic,

must be integrated with the devices required for proper operation and tests. These valves must be fireproof if they

are located in the fire zone. The Emergency block valves are also known as (Activation Insulation Valves InsulationValves Remote or Remote Operated).

6.13 Fire Zone. under which the area is unsafe to enter during an emergency situation. This area is considered to a

minimum radius of 7.62 m (25 ft.) around the source of the leak.

7. ABBREVIATIONS

7.1 AISI American Iron and Steel

7.2 API American Petroleum Institute

7.3 ASME American Society of Mechanical Engineers

7.4 ASTM American Society for Tests and Materials

7.5 DN Nominal Diameter

7.6 DPDT Double Pole, Double Throw

7.7 ETG Nickel Plate by electrolysis

7.8 HT Heat Treated

7.9 IEC International Electro technical Commission

7.10 ISO International Organization for Standardization

7.11 LED Light Emitting Diode

7.12 LFMN Federal Law on Metrology and Standardization

7.13 MSS SP Manufacturers Standardization Society of Valve and Fittings Industry Standard Practice

7.14 MTTFs Mean Time To Fail Mean time between failures spurious or false triggering.


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7.15 NACE National Association of Corrosion Engineers

7.16 NEMA National Electrical Manufacturers Association

7.17 NBR Nitrile butadiene Rubber

7.18 NDE Nondestructive Examination

7.19 NPS Piping Nominal Size.

7.20 NMX Mexican Standard

7.21 NPT National (American) Standard Pipe Taper

7.22 NRF Reference Standard

7.23 PEMEX Petróleos Mexicanos and Subsidiary Entities

7.24 P op Operation accuracy

7.25 psi Pound per square inch

7.26 SAE American Society of Automotive Engineers

7.27 SIL Safety Integrity Level

7.28 SIS Safety Instrumented System

7.29 SPDT Single pole, double throw

7.30 STPS Labor and Social SECRETARIAT

7.31 T op Operating temperature

7.32 TUV Technischer Überwachungs-Verein. (Verification Technical Association)

7.33 UL Underwriters Laboratories Inc.

7.34 UNS Unified Numbering System

7.35 VAAR Remote Activation Insulation valves

7.36 VAOD valves Distance Operated Insulation

7.37 VBE Emergency block valves


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8. DEVELOPMENT

Supplier or contractor must provide VBE, actuators, test device, control systems, monitoring stations (keypads),accumulator or cylinder support and services specified in Annex 12.1 of this standard of reference, which must

comply with the following:

8.1 General

8.1.1 VBE will be supplied with the test device, the pneumatic, manual actuator, indicator and position switchesand accessories, assembled and tested by Supplier or contractor, which must have the backing and support letters

from manufacturers the VBE, and actuator test device, as required by subsection i) of this Rule 8.10.1 of reference.

8.1.2 Moving parts that are exposed must have physical protection (barriers or guards), as required by the NOM-

004-STPS-1999, to prevent access to the operating point and avoid risks to workers.

8.1.3 VBE closes to the failure of the power supply source for its operation (air or process gas instrument).

8.1.4 When specified in Annex 12.1 of this Standard Reference, VBE must have a backup tank or cylinder for eachVBE, to ensure that the source of power supply to the pneumatic actuator (pressure and flow) will be uninterrupted

or decrease.

8.1.5 Control devices and operating under VBE and must comply with the specified SIL to ensure safety

instrumented function and prevent unwanted closure of the VBE. The failure of any control or operation of theactuator must be alarmed so bright in the control stations (pendant) local and / or in the control room of the Center

for Work, as specified in 8.6 and / or 8.7 of This reference standard.

8.1.6 When specified service or service bitter to VBE hydrogen sulphide or to the power supply source, thematerials and manufacturing the tire valve or actuator, and gas accumulator pipe must be as stated:

a) ISO15156: 2009 for installation in production work centers and Gas Oil and gas treatment plants naturally.

b) NACE MR0103: 2010 or equivalent, for installation in workplaces oil refining, and prosecutions containing H2S in gasor dissolved in the aqueous phase, with or without hydrocarbon processes.

8.1.7 VBE, actuators and devices (solenoids and position switches) must be supplied with components designed

and certified based on the Integrity Level (SIL) specified in Annex 12.1 of this Reference Standard. The VBE, actuatorsand devices (solenoids and position switches) must have certificates with effect from the date of delivery of the

goods, in compliance with IEC 61508-2: 2010 or earlier, must provide the appropriate certificate issued by an

accredited in terms of the LFMN.

8.1.8 Requirements fireproof behavior: When specified in Annex 12.1 of this Standard Reference, VBE must

withstand a fire with a temperature of 750 to 1000 ° C in the valve body for 30 minutes as required Clause 5.2 of ISO10497:2010. The actuators and components must have fire protection to keep all internal controls and wiring below

60 ° C, under fire conditions cited above, so it does not affect the performance of these.

8.1.9 Area classification. The items, electrical and control devices must comply with the area classificationspecified in Annex 12.1 of this Reference Standard, as established by NRF-036-PEMEX-2010.


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8.1.10 Identification

a) VBE must be identified by the key (VBE, VAAR o VAOD) followed by sequencing identification number, specified inAnnex 12.2, 12.3 and / or 12.4 of this Reference Standard.

a) Supplier or contractor must provide VBE labeled, in the black and fulfilling 8.13.12 13.8.16 of NRF-009-PEMEX-2004,

with the identification sequenced was stated in the previous paragraph.

b) VBE must be marked as required by Annex "E" of ISO-14313: 2007, including butterfly VBE is not covered by ISO. Thename or identification plate must include the corresponding key VBE.

c) Operator must have a name or ID plate type 304 stainless steel permanently secured with stainless steel rivets (notallowed glue or adhesive to secure the plate), with the following minimum information:

I. Service and password

II. Make, model and serial numberIII. Material of inmates

IV. Operating Range

V. Date of manufacture

VI. country of OriginVII. Classification marking of hazardous areas

e) The system of local control must have a name or identification plate type 304 stainless steel permanently securedwith stainless steel rivets (not allowed glue or adhesive to secure the plate), with the following minimuminformation:

I. Service and passwordII. Make, model and serial numberIII. Material of inmates

IV. Operating Range

V. Date of manufacture

VI. Country of OriginVII. Classification marking of hazardous areas

F) The accumulator actuator power source must have a name or ID plate type 304 stainless steel permanentlysecured with stainless steel rivets (not allowed glue or adhesive to secure the plate). For identification plate mustcontain, refer to paragraph 8.3.1.42 of NRF-028-PEMEX-2010 or as required by ASME Section VIII or equivalent.

8.1.11 The measuring instruments used in VBE settings, actuators and devices must be calibrated with standardequipment and calibration certificates or reports must comply with NRF-111-PEMEX-2012.

8.1.12 The power supply voltage for auxiliary control, protection and measurement must comply with as specified

in Annex 12.1 of this Standard Reference, its installation must comply with NRF-048-PEMEX-2007. Do not include the

power source for the control system.

8.1.13 The electrical input into the control system and control stations (keypads) must comply with the following:

a) Selected for high temperature as required by NRF-048-PEMEX-2007.b) Cables and electrical terminals must be permanently identified at both ends or


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point to point.c) Electrical connections in the control system must be performed on terminal stripsriel mounted (high density terminals).

8.2 Valve

Valves must comply with the following:

8.2.1 Butterfly Valve

8.2.1.1 Design Features:

C O N C E P T DESCRIPTION

Type: Butterfly a quarter turn, triple offset zero friction.

Seat: Integral to the body. Gland: Without grease injections to stem packing or seal. Union drive-shaft: Through wedges or "pin" must unite Leaded

stem must provide tools for assembly and disassembly.

Stem type: One-piece, anti-blasting design, as required by API609:2009 or equivalent, if not specified otherwise in the

Annex 12.1 of this Reference Standard.

8.2.1.2 Construction Materials:

CONCEPT DESCRIPTION Body: Must be indicated in Annex 12.2 of this Statement ofReference.

Seat: The same material as the body type coated"Stellite 21 "minimum thickness 3 mm, if none is specified in Annex coati

12.2 of this Reference Standard. Disc: Of the same material as the body, when not otherwise specified

in Annex 12.2 of this Reference Standard in compliance with the specifmaterial for No. trim, indicated in Material Specification for Pipe NRF-

032-PEMEX-2012, which corresponds to the fluid service and operatconditions specified in Annex 12.2 of this Reference Standard.

Seal disk Solid mounted disk (in one piece), stainless steel ASTM A 564 H1150 (4PH) or equivalent, if not specifiedotherwise in Annex 12.2 of this standard reference, in compliance with specified material for No. trim, indicated in Material Specification for PNRF-032-PEMEX-2012, which corresponds to the fluid service and operatconditions specified in this Annex 12.2 of thisStandard Reference.

Seal: Metal-to-metal seal with zero leak, bi.


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Stem : Material must be specified for the No. trim, indicated inla Specification Piping Materials NRF-032-PEMEX-2012, which correspoto the fluid service and operating conditions specified in Annex 12.2 of t

Standard Reference, if not otherwise specified in this Annex.

Stem bushings: 316 stainless steel or type "stellite 6" or equivalentWith integrated protectors on graphite reinforced, if not otherw

specified in Annex 12.2 of this standard reference, in compliance with specified material for No. trim, indicated in Material Specification for PNRF-

032-PEMEX-2012, which corresponds to the fluid service and operat

conditions specified in Annex 12.2 of this Reference Standard.

Gasket: Graffito. Glands live load type: At least equal to the valve body. Coating valves(Anticorrosive):

Must comply with as indicated in Annex 12.1 of this Statement ofReference and applying NRF-053-PEMEX-2006.

8.2.1.3 Valve Manufacture:

CONCEPT DESCRIPTION Design: ASME B16.34: 2004 and API-609: 2009 Class B or equivalent. Flanged ends: ASME B16.5: 2009 or equivalent to DN 600 (NPS 24), ASME

B16.47:2011 or equivalent series A (MSS SP/44) or equivalent

Greater than DN 600 (NPS 24). Distance between flanges: As specified in Annex 12.1 of this Reference Standard. Design for fire resistance,when specified in Annex12.1 of this Standard:

Rated by the type of litmus test as required by ISO-10497:2010.

8.2.1.4 Tests:

CONCEPT DESCRIPTION Closed valve orairtightness testtightness or closed

valve (seat):

Procedure andPressure test

As established ISO-5208: 2008 and API-STD-598: 2009 orequivalent.

The test must be bidirectional seal and must be performed in bdirections, both hydrostatic (high pressure) and low pressure pneumatic or inert gas at a pressure of from 4.08 to 7.13 kg/cm2, regardless of valve class).Must deliver the report airtight valve seat, in both flow directi

bidirectional flow . Duration Over time table established 11 ISO-14313: 2007. Criterionacceptance

Reference. Closed valve orairtightness testhydrostatic(Body):

Procedure andPressure test

As established ISO-5208: 2008 and API-STD-598: 2009 orequivalent.

Duration Eventually they set the table 10 of ISO-14313: 2007.

Hermetic zero seat leak as the arrangements(Rate) "A" of ISO 5208:2008 and as described in 6.2 of this Statement of

Acceptance Airtight zero leaks


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Closed valve orairiness test oftightness in the stemseal:

Procedure andPressure test As established ISO-15848-1: 2006.

Duration As established ISO-15848-1: 2006. Acceptance As established ISO-15848-1: 2006.

fire test type, when specified in Annex 12.1

of this Standard: As established ISO-10497: 2010.

Torque operation test: As stated in ISO 14313:2007 B.6.

As stated in ISO 14313:2007 B.7.

8.2.2 Ball Valve.


CONCEPT DESCRIPTION Type: Full pitch wave of a quarter turn.

Gland Live load type, without injection of grease and stem packingseal.

Stem type Design anti-blasting.


CONCEPT DESCRIPTION Body must be at least as suitable for this type of valve, the

Pipe Materials specification of NRF-032-PEMEX-2012, which correspondsthe fluid service and operating conditions specified in Annex 12.3 of tstandard of reference, if not otherwise specified in this Annex.

Seat: At least the same material coated body as specified in the Annex to tStandard 12.3 Reference, unless otherwise specified in this Anncompliance with the specified material for No. trim, indicated in MateSpecification for Pipe NRF-032-PEMEX-2012, which corresponds to the flservice and operating conditions specified in Annex 12.3 of this RefereStandard.

Ball: Of the same material as the body, at least, if not otherwise specifiedAnnex 12.3 of this Reference Standard, in compliance with the specifmaterial for No. trim, indicated in Material Specification for Pipe NRF-0PEMEX-2012, which corresponds to the fluid service and operatconditions specified in Annex 12.3 of this Reference Standard.

Closed valve or airtightness test joint stress

Seal: Without direct metal to metal or polymer elastomer inserts withcoatings as specified in Annex 12.3 of this Reference Standard, sealed wit

zero leak, bi.


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Seal: As specified in Annex 12.3 of this Reference Standard.

Stem : At least the material must be specified for the No. trim, indicatedMaterial Specification for Pipe NRF-032-PEMEX-2012, which correspondthe fluid service and operating conditions specified in Annex 12.3 of tStandard Reference, if not otherwise specified in this Annex .

Stem bushings: At a minimum, type 316 stainless steel with heat treatment of nitruratand reinforced graphite integrated protectors, if not otherwise specifiedAnnex 12.3 of this standard of reference, in compliance with the specifmaterial for No. trim, indicated in Material Specification for Pipe NRF -0PEMEX-2012, which corresponds to service

fluid and operating conditions specified in Annex12.3 of this Reference Standard.

Gasket: Graffito. Glands : At least equal to the valve body. Coating valves(Anticorrosive):

Must comply with as indicated in Annex 12.1 of this Statement ofReference and applying NRF-053-PEMEX-2006.

8.2.2.3 Valves Manufacture:

CONCEPT DESCRIPTION Design: ISO-14313: 2007 Flanged ends: ASME B16.5: 2009 or equivalent to DN 600 (NPS 24) N, ASME

B16.47:2011 or equivalent series A (MSS SP/44) or equivalentGreater than DN 600 (NPS 24). Distance between flanges: Comply with ASME B16.10: 2009 or equivalent. Design for fire resistance,when specified in Annex

12.1 of this Standard:

Rated by the type of litmus test as required by ISO-10497:2010.

8.2.2.4 Tests:

CONCEPT DESCRIPTION Closed valve orairtightness testtightness or closedvalve (seat):

Procedureand pressure test

As established ISO-5208: 2008.The test must be bidirectional and must be made in both directions and is

due on test report. Duration Over time table established 11 ISO-14313: 2007. Criterionacceptance

Reference. Closed valve orairtightness testhydrostatic(Body):

Test and pressureproceduretest

As established ISO-5208: 2008.


Hermetic zero seat leak as the arrangements(Rate) "A" of ISO 5208:2008 and as described in 6.2 of this Statement of



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Closed valve orairtightness test oftightness in the stemseal:

Procedure andPressure test As established ISO-15848-1: 2006.

Duration As established ISO-15848-1: 2006. Acceptance As established ISO-15848-1: 2006.

fire test type , when specified in Annex 12.1

of this Standard: As established ISO-10497: 2010.


As stated in ISO 14313:2007 B.7.

8.2.3 Gate Valve.


CONCEPT DESCRIPTION Type: Must be wedge or blade as indicated in Annex 12.4 of

This reference standard.

Seat: Integral to the body. Gland Live load type, without injection of grease and stem packing

seal. Stem type One piece, anti-blasting design.


CONCEPT DESCRIPTION Body It must be right for this type of valve, in Pipeline Materials Specification

NRF-032-PEMEX-2012, which corresponds to the fluid service and operatconditions specified in Annex 12.4 of this Standard Reference, if otherwise specified in this Annex .

Seat: The same material as the body is coated specified in Annex 12.4 of tstandard of reference, if not otherwise specified in this Annex, compliance with the specified material for No. trim, indicated in MateSpecification for Pipe NRF-032-PEMEX-2012, which corresponds to the flservice and operating conditions specified in Annex 12.4 of this RefereStandard.

Wedge or Blade: The same material as the body, at least when not otherwise specifiedAnnex 12.4 of this standard of reference, in compliance with the specifmaterial for No. trim, indicated in Material Specification for Pipe NRF-0PEMEX-2012, which corresponds to the fluid and service operatconditions specified in Annex 12.4 of this Reference Standard.

Closed valve or airtightness test joint stress

Seal: Metal-metal (zero leaks) bidirectional.


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Stem : Material must be specified for the No. trim, indicated in la SpecificatPiping Materials NRF-032-PEMEX-2012, which corresponds to the flservice and operating conditions specified in Annex 12.4 of this StandReference, if not otherwise specified in this Annex .

Valve Coating: Must comply with stated Appendix 12.1 of this StandardReference and applying NRF-053-PEMEX-2006.

8.2.3.3 Valve Manufacture:

CONCEPT DESCRIPTION

Design: Comply with ISO-14313: 2007. Flanged ends: ASME B16.5: 2009 or equivalent to DN 600 (NPS 24), ASMEB16.47:2011 or equivalent series A (MSS SP/44) or equivalentGreater than DN 600 (NPS 24).

Distance between flanges: As specified in Annex 12.1 of this Reference Standard.

Design for fire resistance, when specified inAnnex12.1 of this Standard:

Rated by the type of fire test as required by ISO-10497:2010.

8.2.3.4 Tests:

CONCEPT DESCRIPTION

Closed valve orairtightness testtightnessor closed valve (seat):

Test and pressureproceduretest

As established in ISO-5208: 2008.The test must be bidirectional and must be made in both directions and isdue on test report.

Duration Over time table established 11 ISO-14313: 2007. Criterionacceptance

Reference. Closed valve orairtightness testhydrostatic

(Body):

Procedureand pressure test

As established ISO-5208: 2008.


Closed valve or

airtightness test oftightness in the stemseal:

Procedure and

Pressure test

fire test type , when specified in Annex 12.1

of this Standard:


As stated in ISO 14313:2007 B.7. Closed valve or airtightness test actuatorassembly stress VBE:

Gasket: Graffito, zero leaksGlands : At least equal to valve body.


As established per ISO-15848-1: 2006.

As established by ISO-10497: 2010.

Duration As established by ISO-15848-1: 2006. Acceptance As established by ISO-15848-1: 2006.

Hermetic zero seat leaks as the arrangements(Rate) "A" of ISO 5208:2008 and as described in 6.2 of this Statement of


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8.2.4 VBE must be provided with the class or nominal pressure rating design specified in Annex 12.2, 12.3 and / or12.4 of this Reference Standard. Where not indicated, the class must be indicated on the Piping MaterialsSpecification of NRF-032-PEMEX-2012, which corresponds to the fluid service and operating conditions specified in

Annex 12.2, 12.3 and / or 12.4 of this Reference Standard.

8.2.6 VBE will be supplied with a manual actuator or hand wheel to race from 0 to 100 percent for valves up to

DN 250 (NPS 10). For more than DN 250 (NPS 10) nominal diameter must be supplied with a hydraulic hand pump

race from 0 to l00 percent, both meeting the requirements of NRF-152-PEMEX-2006, if not stated otherwise.

8.2.7 Valve stem must be supplied with such dimensions that resist tension, compression, bending and torque

required for valve including stuck and its length allows the installation of all devices such as the test device, theactuator the steering wheel and, when applicable, hydraulic hand pump.

8.2.8 When specified in Annex 12.1 of this standard VBE reference that must be designed for fire resistance,

indicate their compliance with fire resistance as permanently set to ISO-10497: 2010 or API-6FA: 2006 or equivalent,

as appropriate.

8.2.9 Switches must have VBE position: for the open and closed position, and a check-back switch to indicate whenit is carrying out the partial closure test. The switches must comply with the following features:

a) Must be dry contact type.

b) Magnetic element or proximity type, as specified in Annex 12.1 of this Statement ofReference.

c) Double switch, type: Micro, SPDT or DPDT, as specified in Annex 12.1 of this Statement ofReference.

d) Switches enclosure must be NEMA 4X or equivalent type 316 stainless steel and as required by the hazardous area

classification indicated in Annex 12.1 of this Reference Standard.

8.02/10 VBE must have a mechanical indicator of high visibility position made of stainless steel type 304.

02/8.11 The non-metallic parts of valves intended for hydrocarbon gas service at nominal pressures PN 100 (Class600) or higher, must resist explosive decompression.

8.3 Pneumatic Actuator

8.3.1 Features

CONCEPT DESCRIPTION

8.2.5 VBE for hazardous use with at least a degree of risk than four or when specified in Annex 12.1 of this standard

of reference, must be tested and stamped "ISO FE" (ISO Leak Emission) for leak emissions as 15848-1/2

established in ISO: 2006, temperature range, pressure VBE and Class specified in Annex 12.2, 12.3 and / or 12.4 of

this Reference Standard.


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Pneumatic actuator: a) The actuator piston to be high starting torqueposition spring return for a failure of the power supply source (gas or airtools).

c) Must work in any position, even upside down.d) Must have visual indicator of valve position

o en closed . Power supply source pressure (instrument airor gas) available on site:

El actuator must be designed to operate with the power supply source (gor air tools) as itestablishes the pressure indicated in Annex 12.1 of this Statement ofReference.

Enhancer "booster": a) The pressure Increaser of the supply source power (gas or instrumentair) must be hosted on the local control system of the VBE.must operate only with the available pressure of the power supply sou

(gas or instrument air) specified in Annex 12.1 of this Reference Standardust provide a stainless steel filter with automatic purge input connected

the power supply source to the increaser, with draining with discharge l

to the outside.

transmission Type: Scotch yoke must be a quarter turn or linear, depending on the typevalve.

Housing or enclosure: Must be NEMA 4X or equivalent, fully sealed. Piston rod: With guidance or support bar to eliminate lateral loads and balance the

forces on the piston. Limit switches: Must be adjustable in both directions to calibrate the position

opening and closing of the valves. Design: As far as mounting position must be modular to allow

its interchangeability in four positions (0, 90, 180 and 270degrees).

Actuators orientation with respect to valves:spectrum to valves:

Must comply with as indicated in Annex 12.2, 12.3 and / or 12.4 ofThis reference standard.

Closing time: Maximum 10 seconds, regardless of the size of the valves, when no othertime is specified in Annex 12.2, 12.3 and / or 12.4 of this ReferenceStandard.

8.3.2 Construction materials:

CONCEPT DESCRIPTION Housing: As specified in Annex 12.1 of this Reference Standard. Bushings: Permanently lubricated low friction. Cylinder: 316 stainless steel type or equivalent. Piston: Ductile Iron ASTM A-395 or equivalent or ASTM carbon steel

A283 gr. D or equivalent. Piston rod: must be hardened steel AISI 1045 or equivalent or alloy steel AISI SAE 984

SKF ETG 100 or equivalent.b) must be coated with hard chrome.

Spring: Low alloy steel ASTM A29 Gr 9254 or equivalent. Piston seals: NBR (Nitrile Butadiene).

Anticorrosive coating cabinet: Must comply with stated Appendix 12.1 of this Reference Standard andcomply with NRF-053-PEMEX-2006.


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Yoke: Ductile Iron ASTM A-395 Gr 80-55-06 60-40-18 or ductile iron, orCarbon Steel API 5LX Gr X 52 + ASTM A537 Class 1 or equivalent.

Guide Bar: Chromed steel alloy or nitred steel alloy, AISI HT 4140 or equivalent.

O-Ring NBR Screws Stainless steel Cartridges: Ductile Iron ASTM A-395 Gr 60-40-18 or equivalent.

8.3.3 Fireproof

When specified in Annex 12.1 of this standard VBE reference that must be designed for fire resistance and must


8.3.3.1 Actuator must be protected from passive protection fire retardant material.

8.3.3.2 The fireproof protection must be maintenance-free and detachable (jacketed) into segments and allow

access to the actuator for maintenance.

8.3.3.3 The protection against fire must ensure at least 30 minutes of operation of the actuator at a temperature to60 ° C.8.3.3.4 Passive protection must withstand temperatures up to 1000 °C over direct heat over a period of 30

minutes, at least, as established by the method UL-1709: 2011 or equivalent.

8.3.3.5 The materials of passive fire protection must be chemically inert and resistant to acidic substances, andbasic solvents.

8.3.3.6 Joining pieces included passive protection to insulate the actuator as set out in 8.3.3.4 of this Standard

Reference.

8.3.3.7 Passive protection against fire must include installation accessories, sheet, and strip and jacket seals,

including type 304 stainless steel.

8.3.3.8 Jacketed actuator must be fireproof and waterproof. Among the passive protection

(jacketed) and actuator must maintain a waterproof layer.

8.3.4 Particular requirements

8.3.4.1 Actuator must be designed to provide an output torque of at least 1.2 times the design torque defined by

the valve manufacturer.

8.3.4.2 Actuator must be mounted after mechanical tests (where applicable). The valves must be designed to

support the weight of the mechanical test (if applicable), the pneumatic actuator, the actuator manual override, thefire protection and components associated with them. Must require the installation of additional supports, themanufacturer must provide the valve.

8.4 Test Device 8.4.1 VBE, must have a device for the partial closure test must close the valve and up to 20 percent. This device

may be electronic or mechanical, as specified in Annex12.1 of this Reference Standard.


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8.4.2 When specified address must comply with the requirements of the bid when specified mechanical and

must comply with the requirements of paragraph 8.4.3 below:

8.4.3 Mechanical Test Device partial

8.4.3.1 Design must have a special safety key cannot be removed during the test, so it must have a position switch

with signaling control stations (keypad) or SIS, as specified in Annex 12.1 of this Reference Standard to indicate thatthe test is being carried out and the instantaneous position during partial closure of the valve.

8.4.3.2 Mechanical device must be constructed of at least the following materials:

a) Steel body ASTM A 108 Gr 1045 or equivalent.

b) Coupling ASTM A 108 Gr steel blued 1045 or equivalent.c) Arrow type stainless steel cam ASTM A276 Gr 410 or equivalent.

8.4.3.3 Test device design must ensure that no partial transmitted lateral loads on the valve stem.

8.4.3.4 This mechanical device must be of the "proven in use" as required by the IEC 02/03/60

61511-1:2004 11.5.3 and must comply with the same IEC 61511-1:2004.

8.4.3.5 Must provide copies of reports the results of failure mode and hit test certificate issued by TUV andfunctionality, Lloyds, EXIDA or any other certification body in terms of LFMN.

8.5 Local Control System for remote manual operation

As indicated in Annex 12.1 of this Standard Reference, providing local control system for remote manual operationfield, it must comply with the following:

8.5.1 The components installed within the control system must comply with the following:

a) On Type 316 or equivalent 12 gauge (2.66 mm), NEMA 4X or equivalent, with front access door. The interior must be

accommodated:I. Regulatory power supply source (gas or instrument air), pressure switches, pressure gauges, solenoid valves,

pneumatic valves, filter, "tubing", chutes, and valve-and-check valves.II. An explosion proof enclosure for housing terminal boards.III. Electrical and pneumatic connections must be identified.

c) Must have at least two holes for pipes for power and control electric, DN20 (NPS ¾).

c) Must have at least three holes air tubes (one input and two outputs) DN 15 (NPS ½) with sockets of type "bulkhead".d) The location of the holes must be as specified in Annex 12.1 of this Reference Standard.

8.5.2 The pressure regulator power supply source of the pneumatic actuator must be housed in the control

system must be of type 316 stainless steel, which must include the following:

a) A duplex filter body type 316 stainless steel, and interchangeable filter elements particle retention capacity of 5microns at least.

e) When specified in Annex 12.1 of this Reference Standard that assembly is in floor anchoring elements must include,

as noted in the pedestal assembly is to be supplied for installation accessories and when to include wall lugs for

installation.


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b) Moisture trap, with outflow pressure and consistent with the requirements of the actuators and automatic

Supplier or contractor must determine pressure and flow regulator inlet and the capacity of the dryer or moisture

trap, so that the pressure, flow and quality than those required in the pneumatic actuator.

8.5.3 As specified in Annex 12.1 of this Standard Reference, supplier or contractor must provide alarm switches for

low pressure, which must be installed as follows: in the supply line of the power supply source (gas or instrument air)

to the actuator (control system within or near the actuator, as specified in Annex 12.1 of this Reference Standard), inthe circuit of the battery or backup roll and out of each solenoid valve and outlet pneumatic valve, which must


a) Dry contact type.b) Magnetic type element.c) Switch, type: Micro, SPDT or DPDT, as specified in Annex 12.1 of this Reference Standard.

d) When specified in Annex 12.1 of this Standard Reference, must be calibrated to the minimum pressure that

defines Supplier or contractor.Pressure switch body must be stainless steel.

8.5.4 Pressure indicators (gauges) before and after the filter, must be Bourdon of type 316 stainless steel, stainless

steel mechanism 316, diameter cover at least 65 mm (2 ½ inches), with connections type male 15 mm (½ inch) or 6.4mm (¼ inch) NPT 316 stainless steel and stainless steel case with screw bezel, solid proof against vapors and

humidity, as required by NRF-164-PEMEX-2006.

8.5.5 Solenoid valves housed in the local control system must comply with the following requirements:

a) Normally energized spool.

b) Redundant.c) Spools for constant operation and low consumption, electrical insulation class "F".d) Body material must be Type 316 stainless steel UNS S31600 or equivalent.

e) Set up of solenoid valves must comply with the SIL and MTTFs in Annex 12.1 of this Reference Standard. The

fulfillment of these two parameters must determine the reliability of the control system architecture local. In the

event that the architecture does not include redundancy in the solenoid valves, must have a mechanism to perform

maintenance of them without VBE is activated, the redundancy may include a solenoid valve. This must be

determined in designing the implant to SIS FIS.

f) Must include protective grilles type 316 stainless steel in the vents to prevent entry of foreign elements.

8.5.6 Pneumatic and accessories lines within the control system must comply with the following:

c) Pipe "tubing" must be seamless and compression type connectors with double seal.d) When specified in Annex 12.1, the arrangement of the solenoid valves and pneumatic switch must allow the coils

and the same pneumatic valve without affecting the power supply source (gas and instrument air) to the actuator ofthe VBE. This arrangement must include a type selector bypass (bypass) with safety key.

e) Selector diversion type (pneumatic valve manual) must be 5 way 2 position (5/2), type 316 stainless steel.

a) Pipe "tubing" must be 316L stainless steel and comply with ASTM A 269-04, ASTM / A 269 degree TB 316L (UNS 31603or equivalent solution heat treatment and marking, must comply with section 31.1 of ASTM 1016 A/1016M-04 A o

equivalent marking must be made "tubing" with diameters of DN 13 (NPS 1/2), DN 10 (NPS 3/8) and DN 8 (NPS 1/4).b) Block Valves [block, check and pneumatics] pneumatic and accessories must be stainless steel type 316 or

higher.

condensate drain.c) Pressure indicator before and after filter.


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8.5.7 When requested in Annex 12.1 of this Reference Standard supply interconnect cable and VBE design must

withstand fire, Supplier or contractor must supply the cable mentioned the following requirements:

a) Insulation must be flame retardant.

b) Cable must comply with what specified in Annex 12.1 of this Reference Standard.

c) The fire protection must ensure at least 30 minutes of operation at a temperature 60 ° C.d) Passive protection must withstand temperatures up to 1000 ° C in direct heat over a period of 30 minutes or

more; tested by the method of UL-1709: 2011 or equivalent.

e) The passive protection components must be chemically inert and must withstand acidic substances, basic

solvents.f) Joining pieces included passive protection must isolate totally miss the heat generated by the fire.

8.6 Control Stations (pushbutton) field

As indicated in Annex 12.1 of this Standard Reference, providing monitoring stations

(pushbutton) field, its components must comply with the following:

a) Copper free aluminum box (less than 1% Cu), As stated in the hazardous area classification and NEMA 4X or

equivalent tightness. b) two position sustained contact switch, open / close in NEMA 4X or equivalent, Class I Division 1, Group B, C, D,

mushroom of red pole, normally closed contact.c) Pilot lamp type LED display, NEMA 4X or equivalent, Class I, Division 1 Group B, C, D:

I. One for red for closed valve indication.

II. One green to open valve indication.III. One amber to display test valve partial closure.IV. One red for fault indication coil A.

V. One red for fault indication coil B.VI. Three for low pressure alarm: actuator, accumulator or cylinder and pneumatic valve.

c) I.D. plates of VBE which triggers, graphical operating instruction and emergency warning device that says

"EMERGENCY VALVE BLOCK – ACTIVATE ONLY WHEN THERE IS FIRE ", as required by the NOM-026-STPS-2008.e) I.D. plate, each pilot light, indicating its corresponding alarm, failure or position.

F) Cables, accessories for mounting, connection, and connectors, terminal strip and identify any component or part and

necessary for the proper operation and installation of monitoring stations (pushbutton) field, including supports and

connection.g) High resistance acrylic guards to avoid accidental actuation of the switch, but which at the same time not prevent its

activation immediately in case of emergency.

8.7 Control Stations (Button) in control room

When specified in Annex 12.1 of this Standard Reference, must supply a control stations (keypad) for installation in

the control room of the unit and must be located in a safe area (outside the risk area) and easily accessible to theoperating personnel with the features and components (which must be installed within control stations (keypads)) asfollows:

a) Control stations (buttons) to be installed in the control room must be in sheet 12 gauge carbon steel withelectrostatic baked paint in NEMA 12 or equivalent, if not otherwise specified in Annex 12.1 of this ReferenceStandard.


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b) Two position sustained contact switch, open-close fungus type red pole, as specified in Annex 12.1 of this StandardReference, of openers.

c) LED type pilot lamp indication, NEMA 4:

I. One red for closed valve indication.

II. One green to open valve indication.III. One amber to display test valve partial closure.IV. One red for fault indication coil A.

V. One red for fault indication coil B.

VI. Threes for low pressure alarm: actuator, accumulator or cylinder and pneumatic valve.

d)I.D. plates triggering VBE, graphical operating instruction and emergency warning device that says "EMERGENCY VALVE

BLOCK - ON FIRE ONLY", as required by the NOM-026-STPS-2008.e) I.D. plates , each pilot light, indicating its corresponding alarm, failure or position.

F) Cables, accessories for mounting, connection, and connectors, terminal strip and identify any component or part and

necessary for the proper operation and installation of monitoring stations (pushbutton) field, including supports andconnection.

g) High strength acrylic guard to avoid accidental actuation of the switch, but which at the same time not prevent its

activation immediately in case of emergency.

8.8 Accumulator Actuator Power source

8.8.1 When specified in Annex 12.1 of this Reference Standard for every VBE must supply a battery forinstrument air, for up to three close-open cycles. The dimensions of the tank must be calculated by Supplier or

contractor.

8.8.2 Backup battery must be designed and constructed as required by NRF-028-PEMEX-2010, with the following characteristics:

a) Must be vertical with a separation step of moisture and particles.

b) Unless otherwise specified in item 12.1 of this Annex reference standard, the battery must be carbon steel with 3

mm minimum allowable corrosion.

c) must have at least one safety valve as required by the NOM-093-SCFI-1994, installed at the top of the vessel, with the

following characteristics:

1. Loaded spring conventional type

2. Closed type bonnet .3. Threaded type hood4. Without lever.5. Alloy steel spring material.

a. must have a connection DN 15 to purge the lowest point with automatic purge valve ball or plug type, the bodymaterial bleed valves can be carbon steel or bronze but its inmates must be stainless steel type 304 .

b. Air outlet connection must be located in the upper part of the vessel, to prevent entrainment of moisture, liquid

or solid.

c. Must have a pressure gauge Bourdon type 316 stainless steel, stainless steel mechanism 316, minimum coverdiameter 114.3 mm (4 ½ inches), with male type connections DN 15 (NPS ½) stainless steel type phenol 316 andbevel box threaded solid proof against vapors and humidity, as required by NRF-164-PEMEX-2011.


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8.9 Tests

8.9.1 General

8.9.1.1 Tests and NDE nondestructive examinations, procedures must be performed under previously reviewed by

PEMEX, they must carry the accredited laboratories in terms of LFMN.

8.9.1.2 Supplier or contractor personnel must perform nondestructive tests and examinations must be trained,

qualified and certified as required by the ASTM-A-482-1991 or ISO 9712:2005; well as the apparatus, equipment andinstruments used in these tests or examinations, must comply with specified in 8.2.3 of NRF-111-PEMEX-2012.

8.9.1.3 Tests, examinations and interpretations must be made by certified level II or III as required by the ASTM-A-

482-1991 or Level 2 or 3 of ISO 9712:2005, the interpretation of tests and examinations must be by certified level IIas established by ASTM-A-482-1991 or ISO 9712:2005 level 2 at least.

8.9.1.4 Contractor or supplier must examine and verify, materials or components, to verify their compliance withrespect to its material certificates and perform additional NDE required by this Standard and Reference VBEspecification, to detect imperfections jeopardize the integrity.

8.9.1.5 To perform the inspection, can use the following methods:

I. - With contractors as required by the Reference Standard (NRF-049-PEMEX-2009) to perform inspection services or

supervision of goods, leases or services, or

II. - With personnel designated by Petróleos Mexicanos, Subsidiary Entities and Subsidiary companies as required by

the Institutional Procedure Inspection of Goods, Leasing and Services-PA-800-70600 01.

To verify that this assembly provides the required watertight seal, thus certifying that the actuator provides the

required torque, and actuation thereof in the closing direction (actual verification of the operation of the set).

8.9.2 Factory Acceptance (When specified in Annex 12.1 of this Reference Standard).

8.9.2.1 Must notify the completion of the factory acceptance tests with 30 days’ notice when the tests are carriedout in the country and 45 days when they are abroad, they must include when applicable test assembly and

operation of the valve -actuator device partial closure test, calibration of position switches, control panel and controlstations (keypad).

8.9.2.2 Previous notification of the tests is due to PEMEX, the protocols of factory acceptance tests, including

program, procedures and acceptance criteria.

8.9.2.3 Factory tests shall include at least the following:

a) Closed valve or airtightness test s nondestructive, including liquid penetrant, magnetic particle, ultrasonic, hardness

and radiography, when specified in Annex 12.1 of this Reference Standard.b) Closed valve or airtightness test identification of materials, when specified in Annex 12.1 of this Statement of

c) Reference.d) Operation of valve, opening, closing and closing time.e) Closed valve or airtightness test manual operation of the auxiliary device.f) Test device partial closure .


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g) Closed valve or airtightness test s of VBE as indicated in 8.2.1.4, 8.2.2.4 and 8.2.3.4, as applicable, of this Statementof

h) Reference.i) Closed valve or airtightness test position switches.

j) Closed valve or airtightness test control system and control stations (keypads) (where applicable). Checking theresponse and operation of each actuating device or component.

8.10 Documentation

Unless otherwise requested in the bid, it must comply with the following:

8.10.1 Must be submitted with the technical bid the following documents:

a. Legible copy of the certificate and valid test of the valves as required by ISO-10497:2010, issued by a laboratoryaccredited by an agency recognized by the Mexican government on the terms of the Federal Law on Metrologyand Standardization, protecting the diameters and classes requested valves, when specified in Annex 12.1 of thisReference Standard, the design must withstand fire VBE.

b. Legible copy of current certificate of test of actuator passive protection as required by the UL-1709: 2011 orequivalent, issued by a laboratory accredited by an agency recognized by the Mexican government on the terms

of the Federal Law on Metrology and Standardization.c. legible Catalogs of manufacturer of valves, actuators, proofer, switches, solenoids, pressure regulating filter

enhancer, control system, control stations (keypads), accumulator for air tools that support all the featuresrequested in this Standard Reference, indicate the source, noting therein requested features and the models

proposed by Bidder s.d. Calculation report selecting each of the actuators and their backup batteries.

e. Valves opening speed calculation, pressure drop and closure calculation report

f. Dimensional drawing of the valve / actuator, control stations (keypad) and control system.g. Instrumentation diagram for each of the valves requested.

h. Diagram of electrical interconnection of all accessories including switches valve position.

i. Must submit with its bid, original and copy for collation of the notarized letter that includes the effective date ortermination of the representation, the backing and support issued by manufacturers of valves, actuators and

device partial closure test. If the manufacturer is a foreigner, the letter must be submitted apostilled. These

documents must be valid at least until the expiry of the guarantees.

j. In case bidder offer construction materials with technical specifications higher than those requested in this

Reference Standard, must state in its technical proposal and prove through comparative sheet manufacturer.

k. Commitment letter saying that in the event of a failure of the goods supplied, is committed to on-site technicalservice no later than 24 hours after being notified via phone call, fax, emai l or any other means, without charge,

within the warranty period.

l. Commitment letter from valve manufacturer, actuator and partial test device which expresses the supply of

parts of the property for 10 years at least, since they supply.m. When specified in Annex 12.1 of this Reference Standard must be included in the technical proposal, the training

courses as specified in section 8.11 of this Standard Reference.n. Must provide for VBE’s, actuators and devices (solenoid and position switches), readable copy of the certificates

or reports issued by laboratories accredited by an agency recognized by the Mexican government in terms of

LFMN, to perform functions safety based on the SIL and MTTFFs (for solenoid valves) specified in Annex 12.1 ofthis Reference Standard, effective the date of delivery of the goods, complying with IEC-61508-2: 2010 or above

and must include copies of certificates evidencing such reports.

8.10.2 The following must be provided with the goods:


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a. Installation, operation and maintenance of the actuators, valves, instrumentation, control systems, control

stations (keypads) and other components supplied, which must include part numbers for each component

of the goods to be delivered. And also, it must give the documents mentioned in Annex C of ISO

14313:2007.

b. materials manufacturer Reports that make up valve and records the chemical composition analysis of thematerials of the valves.

c. Legible copy of the certificate or report current test of valves as required by ISO-10497: 2010, issued by a

laboratory accredited by an agency recognized by the Mexican government on the terms of the Federal Law

on Metrology and Standardization, protecting diameters and classes requested valves, when specified in

Annex 12.1 of this standard of reference, the design must withstand fire VBE.d. Legible copy of the certificate or report OF current test of the actuator passive protection as required by the

UL-1709: 2011 or equivalent, issued by a laboratory accredited by an agency recognized by the Mexican

government on the terms of the Federal Metrology and Standardization when specified in Annex 12.1 of

this standard of reference, the design must withstand fire VBE.e. Certificates or reports issued by laboratories accredited by an agency recognized by the Mexican

government in terms of LFMN, to perform safety functions based on the SIL and MTTFs (for solenoid valves)

specified in Annex 12.1 of this Reference Standard , effective the date of delivery of the goods, provided the

IEC-61508-2: 2010 or above and must include copies of certificates evidencing such reports.

b. Test Report of valves, indicated in 8.2. of this Standard Reference.c. Vent valve adjustment report and calibration certificate or report of instruments, as required by NRF-111-

PEMEX-2012. d. Factory performance test proof, indicated n 8.9.1 of this Standard Reference, duly endorsed by the

manufacturer.e. Calculation report for sizing and actuator selection.f. Report sizing calculation (capacity) of the cylinder or accumulator backup.

g. Supplier or contractor must generate and provide all the documentation of design, construction, inspection

and tests of all the elements of the supply as provided in this standard reference.h. Local control system arrangement drawings and monitoring stations (keypads), including size, location and

dimensions of media and / or anchor, position and dimensions of the battery connections limit, list of parts

/ materials, with part number and catalog accordingly.

i. Dimensional drawing and detail of the valve - actuator including operating data, design and test, test device,position indicators, manual override actuator, fire protection, supports, location of points of

interconnection to limit battery list materials / parts with part numbers and catalog as appropriate, and

operating empty weight, sequence assembly, lifting points, among others.

j. Control wiring diagrams and local control system and control stations (keypads), including cable list withidentification point - point connection, bill of materials and parts, with part number and catalog accordingly.k. Diagrams pneumatic local control system, indicating operating conditions, design and setting ranges of the

pressure regulator and low pressure switches, and including materials and parts list with part number and

catalog accordingly.

l. VBE Data Sheet, pneumatic actuator, actuator auxiliary hydraulic pressure gauges, valve (s) vent.m. Pressure subject vessel mechanical integrity documents, including the operating license granted by the STPS.

n. Minimum recommended spare part list continuous operation of the equipment (Valve / actuator /

accessories) for 2 years, with its part number.

o. Test report of material and valve identification.p. Report hardness tests of valve materials, when applicable and requested in Annex 12.1 of this Reference


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standard.q. Certificates or reports issued by laboratories accredited by an agency recognized by the Mexican

government in the LFMN terms of compliance with the leak test on the stem seal as required by ISO-15848-1: 2006.

8.11 Training

Unless otherwise requested in the bid, it must comply with the following:

8.11.1 Supplier or contractor must provide training courses that PEMEX specified in Annex 12.1 of this standard of

reference, they must be theoretical and practical guidance on the operation and maintenance of VBE and its

components. The courses will be taught in Spanish, the duration, and the number of people and place of delivery

indicated in Annex 12.1. Supplier or contractor must provide training materials for each course.

Supplier or contractor must deliver the training program for approval.

8.11.2 The course must include:

a. Selectionb. Installation.c. Test procedures and tests (functionality, tightness, etc.).

d. Assembly, disassembly and adjustment and calibration of VBE in valve-actuator assembly, and their

components individually (valve, test device, pneumatic actuator, auxiliary manual actuator, position switches,travel stops, etc.).

e. Failure Identification and repairf. Inspection, removal and installation of fireproof material.

g. Care and recommendation in handling, assembly and disassembly of valves, actuators and other components.h. Intervention and replacement of components in the system of local control and monitoring stations (keypads) in

operation.i. Preventive and corrective maintenance tasks and inspection

8.11.3 Must give each participant the support material and operation and maintenance manual, both in Spanish, foreach course.

8.12 Packing, packaging and shipment

8.12.1 Supplier or contractor is responsible for packing, loading and transportation of valves, actuators and other

components, to the workplace, as indicated by the range set. All components that come factory damaged, must bereplaced at no cost to PEMEX in a time that does not affect the work program.

8.12.2 Valve actuators and integrated instrumentation must be packed and sealed in airtight boxes dust proof,

moisture proof and a rigidity that support both the handling during transport and storage in the center of the

extreme environmental conditions of work defined in Annex 12.1 of this Reference Standard, without damage. Itmust use a mechanical insulation between the tools and the vessel wall and between two tools in the same vessel,

unless the vessel itself constitutes insulation as in the case of polyurethane foam vessels or corrugated cardboard. All

instruments and any other moving body inside the package must be fixed.

8.12.3 Wires in the electrical and electronic instrumentation, must be sealed at the ends before shipment and mustnot allow moisture penetration. The shell must be free of grease, oil, dirt or other foreign substances.


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8.12.4 All openings connections and electrical, hydraulic and pneumatic exposed to the environment must beprotected with removable material, using wood, plastic or metal. Desiccant must be placed in labeled vessels of lowpermeability in each section or compartment.

8.12.5 valve flanges must be plugged with removable plastic material, without the introduction of dust, moistureand foreign matter into the valve.

9. RESPONSIBILITIES

9.1 Of Petróleos Mexicanos and Subsidiary Entities.

The application and compliance with this reference standard in the acquisition of the emergency block valves Emas

specified and control system and manual stations (keypads).

9.2 Suppliers, contractors or bidders.

Comply with as minimum specified in this Reference Standard in the design, manufacture, construction, inspection

and tests.

Supplier or contractor is responsible for the final quality of the work, materials and services, whether provided by

him or his suppliers and / or subcontractors.

Supplier and / or contractor must comply with NMX-CC-9001-IMNC-2008 (as provided in Article 13 and 13-A of the

Rules of the Procurement Act Leases and Public Sector Services, Article 24, 3 ° paragraph of the Law on Public Works

and Related Services thereof and Article 11 of the Regulations of the Law on Public Works and Related Services

thereof).

The information must comply with the technical specification of PEMEX SSIME GNT-2008-G002 or P.1.0000.06: 2000

information must be validated by Supplier or contractor (stamp and signature). This must be submitted in electronicand print media as required by the bid.

All documentation and records generated in the works that fall within this standard of reference, before and during

the development of manufacturing and / or engineering (procedures, plans, logs, charts, reports, studies,

correspondence, etc.), must be delivered in Spanish, except for own catalogs of suppliers or contractors that may be

in English, and the units of measurement can be as stipulated in Section 12.8.5 of the NOM-008-SCFI-2002 (was maybracketing system language or other measures). Furthermore, such delivery must be made by electronic and print

media, as required by the bid, and must be stamped and validated rubric of responsible company, supplier,

manufacturer or appropriate.

Supplier or contractor is solely responsible for the supply and installation of the work and must adhere to all

regulations and orders of the competent authorities in the field of construction, safety, road use, ecological

protection and environmental governing in the federal, state or municipal, as well as instructions to that effect will

bring the agency or entity. The liabilities and damages that may result by a failure will be borne by Supplier orcontractor.

Provide technical support in the workplace of PEMEX destined to which the goods is destined to in a period no

longer than 24 hours, when the supply presents troubleshooting.


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Note: ETotal l of this Annex 12.3, invariably must request the supplier or contractor, fully filled.

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pH

SPDT DPDT

SPDT DPDT

Annex 12.1 Supply Requirement REVIEW BY DATE REVIEWD

CONTRACT DATE

REQUISITION

ELABORATED REVIEWED VALIDATED

WORK CENTER EXTREME CONDITIONS

Environmental variable Max. Mín. Annual Average Units

Temperatur e °C

Humidity % @

Atmospheric pressure mm Hg

Vibrations

Wind Speed

Rain

Solar Radiation

GENERAL REQUIREMENTS

Hazardous area classif. Does not classify Class I, Division 1 Class I, Division 2 Gr oup

Safety instrumented level: N/A SIL-1 SIL-2 SIL-3

Nominal power electric voltage 127 VCD 10% 24 VCD 24 VCDwith intrinsic proteciton

Current regime mA

Anticorrosive coating: Environment: System: according to NRF-053-PEMEX-2006


VBE supply: Yes Password N/A

Stem type:

Stem Material:

Dimensins between flanges: ISO-5752:1982 ASME B16.10:2009

Service: Substance risk degree:

Health: Airtightness: Reactivity:

Special:

Leak emission stamp “ISO-FE”, due to hazardous substances: Yes N/A

Fire resistance design ISO-FT: Does apply N/A

Auxiliary manual actuator : Yes N/A

Type position switches: Proximity Magnetic

Nominal power electric voltage: 127 VCD 10% 24 VCD 24 VCD with intrinsic protection

Current regimen mA


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Min. °C

MTTFS:

SPDT DPDT

Annex 12.1 Supply requirements (cont.)

PARTIAL TEST DEVICE

PNEUMATIC ACTUATOR

ACTUACTOR IGNIFUGE PROTECTION

REMOTE OPERATION LOCAL CONTROL SYSTEM

FIELD MANUAL STATIONS (BUTTONS)

CONTROL ROOM MANUAL STATIONS (BUTTONS)

N/A

CONTRACT DATE

REQUISITION

ELABORATE REVIEWED VALIDATED

REVISION BY DATE REVIEWED

Mechanical (mechanical limitator ) Electronic (Positioner control ) N/A

Protection: Yes

Type: Tarp Jacket

Other

Power fluid Gas, type:___________________ Instrument air

Pressure: kg/cm2 (man) (psi

man) Temperatur e: Máx. °C

Supply: Yes, Annex 12.2, 12.3 y/o 12.4 of this reference standard N/A

Shell material: Ductil Iron Carbon Steel: Stainless Steel

Supply: Yes N/A

Orifice location: Upper Lower Lateral right Lateral left

Assembly: Floor Pedestal Wall

Low pressure switch: N/A SPDT DPDTQty. of switches to supply:__________________________________________________________________________

Solenoid valves: SIL N/A SIL

Actuactor power source switch installation Inside cabinet Close to actuator

Pressure switches: 127 VCD 10% 24 VCD 24 VCD with intrinsic protection

Current regime mA

Interconnection cable supply: Does apply N/A

Armored Armed

Observations:

Manual stations (Buttons): Yes N/A

Manual stations (Buttons): Yes N/A

Independient On panel VBE Integrated to SIS

Box type: NEMA 12 NEMA 1


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Material:

Otras:_______________________________________

Nota: El total de este Anexo 12.1, invariablemente debe solicitarlo el proveedor o contratista, totalmente llenado.

Annex 12.1 Supply Requirement (cont.)

CONTRACT DATE

REQUISITION

ELABORATED REVIEWED VALIDATED

AIR ACCUMULATOR

REVISION BY DATE REVIEWED

TESTS

TRAINING

Pruebas de aceptación en fábrica Sí N/A

Prueba de dureza: Sí N/A

Pruebas no destructivas Sí N/A

Pruebas de identificación de materiales Sí N/A

Suministro: Sí N/A

Identificación positiva de materiales “PMI” Sí N/A

Agrietamiento inducido por hidrógeno “HIC” Sí ___CSR___CLR___CTR N/A

Suministro: Sí N/A

Número de personas por curso:____________ Número de cursos:________________

Lugar donde se impartirán:__________________________


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P op.kg/cm

2

(psi)

T op.°C

DN(NPS)

Nota: El total de este Anexo 12.2, invariablemente debe solicitarlo el proveedor o contratista, totalmente llenado.

Annex 12.2 Valve Requirements (Butterflytype)

REVIEW BY DATE REVIEWED CONTRACT DATE

REQUISITION

ELABORATEDREVIEWED VALIDAT

STEMMATERIAL

ACTUATORORIENTATIO

CODE SERVICE FLUID No.LINE

Flow m

3 /hr

FACECLASSANDTYPE

DISK ANDBODY

MATERIAL

CLOSING TIME

(seg)

SEATCOATING

SEAL RINGMATERIAL

BITTERSERVICE

OR OTHER

PIPESPECIFIC

ATION


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ANNEX 12.5

Equivalent representation of normative documents.

12.5.1 The words "or equivalent", mentioned in this NRF, after foreign documents, means the following:

Policy document which indicates characteristics, rules, specifications, requirements, attributes, guidelines or

requirements for a good, process, activity, service or method, and those relating to its compliance or application, ina quantitative, qualitative, as that proposed in this NRF.

12.5.2 Foreign documents, "equivalent", must comply with the indicated and / or required by Exhibit

NRF abroad referred by this.

12.5.3 Not accepted as normative documents or equivalent National Guidelines, international, industry or foreign,that have requirements, specifications or requirements relating to minors and / or requested by PEMEX (eg lower

thickness, lower safety factors, lower pressures and / or temperatures, lower levels of electrical insulation propertiesat a lower temperature, higher smoke emissions and constructional characteristics of the electrical conductors,

lower capacity, efficiency, operating characteristics, physical properties, chemical and mechanical properties, amongothers).

12.5.4 This also applies to the requirements outlined in the Technical Documents Basic Engineering Packages of

Licensors or Technologists.

12.5.5 In all cases, the features, specifications, requirements and / or obligations specified in thi

Nrf 204 Pemex 2012.English

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