i1007, rev b, spec relief valves

Melbourne Office Client

PETROVIETNAM / GPPMB Project Title

PHU MY – HO CHI MINH GAS PIPELINE Document Type

SPECIFICATION

SPECIFICATION FOR PRESSURE RELIEF VALVES

DOCUMENT No: 01-0678-01-I-1-007

DISCLAIMER In accordance with J P Kenny policy, we advise that neither J P Kenny, its sister companies nor any director or employee of J P Kenny or its sister companies undertakes any responsibility in any way whatsoever to any person, other than to PetroVietnam, in respect of this report. Original Prepared by J P Kenny

B 20/11/03 Issued for Client Approval JT EK DJ

A 14/10/03 Issued for Client Review JT EK DJ

REV DATE REVISION ORIG CHKD APPD DATE SIGN. DATE SIGN. DATE SIGN.

JPK REVIEW CHECK APPROVAL

GPPMB

PetroVietnam / GPPMB Phu My – Ho Chi Minh Gas Pipeline Project


J P Kenny Document No: 01-0678-01-I-1-007 Rev. B

Revision Sheet

(Provide (Provide General Description)

Revision Date Details A 14/10/03 Issued for Client Review B 20/11/03 Issued for Client Approval Section 2.1 and 3.2.1 modified to include client comments in transmittal T-GPPMB-JP-0111




TABLE OF CONTENTS

1.0 SCOPE OF SUPPLY ............................................................................................................. 1 1.1 INTRODUCTION ............................................................................................................ 1 1.2 SCOPE .......................................................................................................................... 1 1.3 PURPOSE AND INTENTION OF USE ............................................................................ 1 1.4 DEFINITIONS ................................................................................................................. 1

2.0 TECHNICAL REQUIREMENTS ............................................................................................ 2 2.1 ACTS, CODES AND STANDARDS ................................................................................ 2 2.2 REFERENCES AND RELATED DOCUMENTS .............................................................. 2 2.3 COMPLIANCE WITH SPECIFICATION .......................................................................... 3 2.4 LANGUAGE ................................................................................................................... 3 2.5 ENGINEERING UNITS ................................................................................................... 3

3.0 DESIGN REQUIREMENTS AND CONDITIONS .................................................................. 3 3.1 GENERAL ...................................................................................................................... 3 3.2 PRESSURE RELIEF VALVE DESIGN ............................................................................ 4

3.2.1 General ............................................................................................................ 4 3.2.2 Material Selection For Valve Body and Its Accessories..................................... 4 3.2.3 Pressure Safety Valve Sizing ........................................................................... 5

3.2.3.1 Orifice Selection ................................................................................ 5 3.2.3.2 Discharge Area ................................................................................. 5 3.2.3.3 Resetting Pressure Or Blowdown ..................................................... 5

3.2.4 Pressure Ratings of Valves .............................................................................. 6 3.2.5 Screwed Valves ............................................................................................... 6 3.2.6 Lifting Levers ................................................................................................... 6 3.2.7 Test Gags ........................................................................................................ 6

3.3 NOISE LEVELS .............................................................................................................. 6 3.4 DESIGN LIFE AND RELIABILITY ................................................................................... 7 3.5 ENVIRONMENTAL DATA............................................................................................... 7

4.0 MATERIAL REQUIREMENTS .............................................................................................. 8 4.1 MATERIALS CERTIFICATES ......................................................................................... 8

5.0 MANUFACTURING REQUIREMENTS................................................................................. 8 5.1 GENERAL ...................................................................................................................... 8 5.2 FABRICATION ............................................................................................................... 9 5.3 ASSEMBLY .................................................................................................................... 9 5.4 SPARE PARTS .............................................................................................................. 9 5.5 PAINTING AND PROTECTIVE COATING ...................................................................... 9 5.6 NAMEPLATE AND TAGGING ........................................................................................ 9

5.6.1 Permanent Marking .......................................................................................... 9 5.6.2 Spring Marking ............................................................................................... 10 5.6.3 Code Stamping and Valve Name Plate .......................................................... 10

6.0 INSPECTION, TESTING AND ACCEPTANCE .................................................................. 10 6.1 GENERAL .................................................................................................................... 10

6.1.1 Visual Inspection ............................................................................................ 11 6.1.2 Third Party Inspection .................................................................................... 12




6.2 FACTORY ACCEPTANCE TESTING ........................................................................... 12 6.2.1 General .......................................................................................................... 12 6.2.2 Hydrotesting of Body and Nozzles .................................................................. 12 6.2.3 Pop Testing ................................................................................................... 12 6.2.4 Seat Leakage Testing .................................................................................... 13 6.2.5 Non-Destructive Examination ......................................................................... 13

6.2.5.1 Radiographic Inspection .................................................................. 13 6.2.5.2 Visual Examination .......................................................................... 13 6.2.5.3 NDT Qualifications .......................................................................... 13

6.3 TEST CERTIFICATES .................................................................................................. 13 6.4 MANUFACTURER DATA REPORT .............................................................................. 14

6.4.1 General .......................................................................................................... 14 6.4.2 Reports .......................................................................................................... 14 6.4.3 Manuals ......................................................................................................... 14

6.5 TRAINING REQUIREMENTS ....................................................................................... 15 6.6 INSPECTION AND TEST PLAN (ITP) REQUIREMENTS .............................................. 15 6.7 SITE ACCEPTANCE .................................................................................................... 15

7.0 INSTALLATION AND COMMISSIONING .......................................................................... 15 7.1 SHIPPING .................................................................................................................... 15 7.2 INSTALLATION ............................................................................................................ 15 7.3 PRE-COMMISSIONING ............................................................................................... 16 7.4 COMMISSIONING ........................................................................................................ 16 7.5 COMMISSIONING RECORDS ..................................................................................... 16 7.6 “AS BUILT” DOCUMENTATION ................................................................................... 16

8.0 COMMERCIAL REQUIREMENTS ...................................................................................... 16 8.1 GENERAL .................................................................................................................... 16 8.2 COST BASIS ................................................................................................................ 16 8.3 INSURANCE ................................................................................................................ 17 8.4 RETENTION/SECURITY .............................................................................................. 17 8.5 SUBCONTRACTORS/SUPPLIERS .............................................................................. 17 8.6 EXPEDITING ................................................................................................................ 17 8.7 TAXES ......................................................................................................................... 18 8.8 EXTENSION OF TIME.................................................................................................. 18 8.9 GUARANTEES ............................................................................................................. 18 8.10 WARRANTIES ............................................................................................................. 18 8.11 PRACTICAL COMPLETION ......................................................................................... 18 8.12 LIQUIDATED DAMAGES ............................................................................................. 19

APPENDIX A: GAS COMPOSITION



J P Kenny Document No: 01-0678-01-I-1-007 1 of 19 Rev. B

1.0 SCOPE OF SUPPLY

1.1 Introduction

Vietnam Oil and Gas Corporation (PetroVietnam) is developing the natural gas transmission and distribution industry in Vietnam, and in particular is now proceeding with the Phu My to Ho Chi Minh Gas Pipeline Project in Vietnam South, to supply fuel gas to power generation stations at Thu Duc and Hiep Phuoc.

This Specification is for the procurement of spring loaded pressure safety relief valves and spring loaded pressure safety valves, which are an integral component of the Phu My – Ho Chi Minh Gas Pipeline and associated facilities.

1.2 Scope

To design, procure, manufacture, test and ship spring loaded pressure safety relief valves and spring loaded pressure safety valves (refer API-520 Part-1 for the definition) in strict compliance with this Specification, the Material Purchase Requisition (MPR) and all associated Documents and References contained within.

Both spring loaded pressure safety relief valves and spring loaded pressure safety valves are generally referred to as pressure relief valves.

1.3 Purpose and Intention of Use

The purpose of the pressure relief valves is to provide over pressure protection to piping systems and equipment.

1.4 Definitions

“Purchaser” – The Vietnamese Oil and Gas Corporation (PetroVietnam/GPPMB) or duly authorised purchasing agent or representative.

“‘ePCC Contractor”’ – The principal project engineering, procurement, construction, and commissioning contractor.

“Vendor” – The supplier of the materials, plant or equipment as determined by this Specification and other associated documents as attached to the MPR.

“Subcontractor” – A ‘Supplier’ or ‘Service’ Organisation sub-contracted to the Vendor, or a ‘Supplier’ or ‘Service’ Organisation sub-contracted to the ePCC Contractor, as the context implies.




2.0 TECHNICAL REQUIREMENTS

2.1 Acts, Codes and Standards

All equipment supplied under this Specification shall comply with the requirements of the National / International Codes, Standards and Regulations listed below and requirements of local statutory authorities in Vietnam that have legal jurisdiction over the sites at which the equipment will be installed. All equipment shall comply with the latest published version of the applicable codes, standards and regulations.

Data Sheets, references and related documents included in the MPR are an integral part of this document and as such shall be used in conjunction with this Specification. The design shall be based on the worst case conditions.

Any conflicting requirements shall be brought to the attention of the Purchaser in writing.

Unless otherwise specifically informed by the Purchaser, the most stringent requirement shall govern.

ASME Section VIII, Division 1 Boiler and Pressure Vessel Code.

API 520, Part I & II Recommended Practice for The Design and Installation of Pressure Relieving Systems in Refineries.

API 521 Guide for Pressure- Relieving and Depressuring systems

API 526 Flanged Steel Safety Relief Valves.

API 527 Commercial Seat Tightness of Safety Relief Valves with Metal to Metal Seats.

ANSI B 16.34 Valves – Flanged, Threaded and Welding End.

ANSI B 16.5 Pipe Flanges and Flanged Fitting.

The Vendor shall submit to the Purchaser a list of Codes and Standards to be used in design, fabrication, assembly and testing of items for Purchaser approval. This list shall be submitted along with the tender.

1.22.2 References and Related Documents

Further information with regard to design requirements is given in the Data Sheet for pressure safety relief valves and pressure safety valves, document no. 01-0678-01-I-1-022.

Composition of the natural gas is given in Appendix A - Gas Composition.

Other relevant specifications and P & IDs are:

01-0678-01-B-7-001 Packing, Marking and Shipping Instructions 01-0678-01-K-1-002 Painting specification




01-0678-01-L-1-001 Piping Specification 01-0678-01-H-7-008 Spare Parts Philosophy

01-0678-01-H-0-102.03 Pig Launcher-Phu My GDC Offtake Station

01-0678-01-H-0-302.02 Pig Launcher- Nhon Trach Branch Station

01-0678-01-H-0-402.01 Pig Receiver – Hiep Phuoc GDS

01-0678-01-H-0-402.02 Filter System – Hiep Phuoc GDS

01-0678-01-H-0-402.05 Pressure Control Run No. 1 – Hiep Phuoc GDS

01-0678-01-H-0-402.06 Pressure Control Run No. 2 – Hiep Phuoc GDS

01-0678-01-H-0-502.01 Pig Receiver – Thu Duc GDS

01-0678-01-H-0-502.02 Filter System – Thu Duc GDS

01-0678-01-H-0-502.05 Pressure Control Run No. 1 – Thu Duc GDS

01-0678-01-H-0-502.06 Pressure Control Run No. 2 – Thu Duc GDS

1.32.3 Compliance with Specification

All work shall be carried out in compliance with this Specification, Data Sheets and the Acts, Codes, Standards and Specifications listed, unless otherwise stated.

1.42.4 Language

The Vendor shall submit all documentation and correspondence in the English language.

1.52.5 Engineering Units

The Vendor shall use the International System of Units (S.I.) in all the documentation.

3.0 DESIGN REQUIREMENTS AND CONDITIONS

3.1 General

The mechanical and process designs of the pressure relief valves shall be the responsibility of the Vendor.

The design of pressure relief valves shall meet all the requirements defined by this Specification including Appendices, Data Sheets and any other documents that accompany the MPR.

The Vendor shall be responsible for ensuring that all components including those that have not been manufactured by them, meet this Specification and are compatible with each other and the process medium in all respects.




The Vendor shall give full details of the technical changes and deviations from the Specification for the Purchaser’s review where the standard or preferred design option does not meet any defined requirements in this Specification.

All valves shall be dust proof, fungus proof and vermin proof using protective methods such as bug screens and surface painting.

The valves shall be capable of fully automatic operation and shall require minimum maintenance.

The pressure relief valves shall be of a proven design.

The Vendor shall supply information on the Data Sheets where requested. Where the Vendor's capacity tables vary from API-526, a full set of tables, sizing nomograms and orifice coding data shall be submitted.

Where any provision of this Section of the Specification is in conflict with the applicable Data Sheets, referenced codes and standards, or other documents, the Vendor shall refer such conflict to the Purchaser for clarification before proceeding with manufacture.

1.23.2 Pressure Relief Valve Design

3.2.1 General

All pressure safety valves and pressure safety relief valves provided under this Specification shall be designed in strict accordance with the requirements of API 520, Part I, API 521, API 526 and paragraphs UG-125 through UG-136 of Section VIII, Division 1, including addenda of the ASME Pressure Vessel Code.

The Vendor shall ensure that all valves offered are in accordance with the Vietnamese Statutory requirements for the application specified.

Pressure safety relief valves and pressure safety valves shall be furnished with a threaded cap over the spring adjusting screw. The screw shall have a lock nut fitted.

Non standard nozzle sizes (eg 15 mm (½"), 20 mm (3/4") 32 mm(1¼") NS, 65 mm (2½") NS and 125 mm (5") NS shall not be used.

3.2.2 Material Selection For Valve Body and Its Accessories

The Vendor shall select materials for valves and their accessories in accordance with API 526 and other applicable Codes and Standards. Materials must be compatible with the piping specification and suitable for the service. The Vendor shall submit a document detailing the selection and basis of selection to the Purchaser for review and approval. The manufacturing activity shall not begin without Purchaser’s approval.

The materials for the internal parts can be in accordance with the Vendor's standard provided it is approved by the Purchaser.




All valves shall be furnished with soft seats made from resilient material which is compatible with natural gas at the service conditions specified on the Data Sheets and which does not lose its properties under repeated relief valve operation.

All materials used in the manufacture of valves shall be suitable for natural gas service (composition specified in Appendix A) at the process temperature and pressure ranges stated in the Data Sheets.

3.2.3 Pressure Safety Valve Sizing

The Vendor shall carry out the valve sizing and orifice sizing taking into due consideration the maximum relieving pressure, permissible accumulation, superimposed and built-up back pressure and all other information on the Data Sheets.

As stated in API 526, the relief valves sizing calculations shall be furnished by the Vendor to the Purchaser for review and approval.

All dimensions shall be within the tolerances specified by Section 2.4 of API 526.

3.2.3.1 Orifice Selection

The orifice size selected shall be equal to the calculated area otherwise the next largest standard orifice size shall be used.

The base tender for all valves shall be in accordance with the Data Sheets. Any anomalies arising out of this Section of the Specification, Data Sheets or references which result in variations to the sizing or valve selection, shall be proposed by the Vendor as alternative offers. This also applies to data changes subsequent to placement of orders. It shall be the Vendor's responsibility to make certain that the valves meet the applicable code requirements referenced on the Data Sheets and this Section of Specification.

3.2.3.2 Discharge Area

The area of the discharge flange shall not be less than four times the area of the valve seat. The discharge flange shall be one size larger than the inlet flange.

3.2.3.3 Resetting Pressure Or Blowdown

Blowdown shall not be less than 0.25 barg, and for set pressures above 5 barg, not less than 5% of set pressure.

General Guidelines for Blowdown

7% of set pressure for all other safety valves.




3.2.4 Pressure Ratings of Valves

The Vendor shall set the maximum allowable working pressure for the body and their components in accordance with relevant Codes and Standards. The Vendor shall record and submit the details in the Manufacturer’s Data Report.

The Vendor shall ensure that the relief valve bodies and body joints, inlet and outlet flanges meet the pressure and temperature ratings in accordance with API 526.

3.2.5 Screwed Valves

Screwed valves may be used when the inlet size is less than 20 NPS or where the outlet size is less than 25 NPS. Both inlet and outlet end shall have same type of connections. Reference should be made to the Piping Specification 01-0678-01-L-1-001 for details on screwed connections.

3.2.6 Lifting Levers

Only “open” type lifting levers venting to atmosphere shall be supplied on all valves. "Packed" lifting levers shall not be used. The lifting levers shall be suitable for the service conditions specified on the Data Sheets

3.2.7 Test Gags

All safety valves shall be furnished with test/shipping gags which must be fitted for transportation purposes. Valves received on site without test/shipping gags fitted shall be immediately returned to the Vendor's works for re-testing, or where point of origin is offshore, valves shall be tested locally and back charged to the Vendor's account.

3.3 Noise Levels

The pressure relief valves shall be suitable for operation in residential areas and comply with the allowable noise emissions from stationery equipment as laid down by the Vietnam Environmental Law 1994.

The design noise output shall not exceed 85 dBA @ 1.0 m from the unit.

The Vendor shall calculate the noise for each valve and complete the Data Sheet as required.

If noise level requirements can not be met then the Vendor shall indicate modifications that can be made to the standard relief valves. Typical modifications include low noise trim and downstream sound attenuation. Additional costs for such modifications shall be clearly defined and submitted for approval.

The Vendor shall allow for the effects of any back pressure caused by sound attenuation when selecting the appropriate valve for each application.




1.43.4 Design Life and Reliability

The mechanical design calculations and mechanical guarantee for full equipment shall include both the external and internal elements including, but not limited to; body, ends, filter element, element fixing arrangement and bolting, if required.

The Vendor shall provide all relevant information in relation to the design life and overall reliability of the equipment. The information shall be based on previous experience with proven designs, which have operated in the field for several years with only planned outages for maintenance/replacement of normal wearing type components.

The Vendor shall submit reliability data for the System Integrity Level (SIL) rating assessment.

The design life of equipment shall be 30 years.

1.53.5 Environmental Data

The Vendor’s equipment or material shall comply with the following environmental data.

The extreme air temperature at Phu My will be: Maximum: 36°C Minimum: 17°C

Outdoor Electrical Equipment & Material Design Temperature shall be: Minimum: 40°C (unless stated otherwise)

The relative humidity at the Phu My GDC and other sites will be: Mean Annual: 80-85% Maximum: 95% Minimum: 60%

The atmospheric conditions at these areas will be:

Corrosive, saline, damp Possibility of typhoon

Wind conditions:

Max. Speed: 30 m/s measured at 10m above MSL, 1 in 100 years return. Solar Radiation: Annual average of sunshine hours 2,375 Daily average 6.5 hrs/day Soil Conditions:




High salinity adjacent to areas of tidal influence High acidity in sections of reclaimed mangrove areas with pH as low as 4 Temperature is nominally 22°C Lightning: Annual average of 126 lightning days/year.

4.0 MATERIAL REQUIREMENTS

4.1 Materials Certificates

The Vendor shall be responsible for acquiring the material certificates from the original equipment or component manufacturer for the pressure relief valves and its internal parts and providing them to the Purchaser.

These certificates shall be submitted in a Manufacturer’s Data Report (MDR) containing identification of each part shown with fully labelled diagrams. It shall also include material composition analysis and its mechanical properties, mill certificates and certification for all pressure retaining parts, all test reports and certificates, and certificates of conformance. Each certificate shall be reviewed and signed by the Vendor’s authorised personnel as detailed in the Inspection and Test Plan.

5.0 MANUFACTURING REQUIREMENTS

5.1 General

The Vendor shall be responsible for the coordination of the design and for the satisfactory functioning of the complete unit. The Vendor shall be responsible for ensuring components that are not manufactured by it but which form a part of the equipment, are compatible with the other components of the equipment such that a fully integrated and functional unit is achieved. The satisfactory functioning of the complete unit shall be the Vendors responsibility and shall be part of the equipment Vendor’s contractual guarantee.

All relief valves shall be Vendor's standard types as recommended for the specified services. The valves shall conform to the following standards:

API 526 For materials and sizes of flanged valves

API 527 For permissible leakage

Light weight bodies are not acceptable.




1.15.2 Fabrication

The fabrication shall be in accordance with requirements of ASME section VIII, Division 1, ANSI B 16.34 and ANSI B16.5.

5.3 Assembly

The assembly shall be in accordance with ANSI B16.34 and ANSI B16.5.

5.4 Spare Parts

The Vendor shall refer to document no. 01-0678-01-H-7-008 titled “Spare Parts Philosophy” and Vendor documentation requirements table in regard to provision and supply of spare parts.

5.5 Painting and Protective Coating

Painting and / or protective coatings shall be applied in accordance with the specification titled ‘Painting’ (document no. 01-0678-01-K-1-002).

All exterior surfaces, except flange facings or threads shall be painted only after completion of Set Pressure Test and Seat Leak Test. The Vendor shall take all necessary precautions to mask off all valve openings including threads during painting.

Any damage resulting to the valve body painting from shipping and transporting shall be rectified by the Vendor, at the Vendor's own cost.

1.45.6 Nameplate and Tagging

5.6.1 Permanent Marking

All relief valves shall have stainless steel plates pinned on to valve body with the pertinent information clearly and permanently engraved as required by ASME Section VIII, Division 1, This information shall include but not be limited to:

• Vendor’s name or trade mark together with his type identification number, and National Standard Specification number (eg. ASTM rating)

• Model

• Serial number

• Date of manufacture

• Design pressure and temperature

• Test pressure

• Design code

• Equipment tag number




• Material

• Size inlet and outlet

• Set pressure

• Cold set pressure

• Spring number

• Spring range

• Equivalent capacity in air or water

• Code stamp

• Date of test

The relief valve tag numbers are listed on the data sheets.

5.6.2 Spring Marking

Springs of wire 6 mm and larger shall be permanently stamped with symbols identifying the manufacturer, material size and pressure-temperature range. Springs with wire less than 6 mm diameter shall have a metal tag wired on with this data.

5.6.3 Code Stamping and Valve Name Plate

Safety relief valves for gas service shall be clearly and permanently marked with the ASME symbol (Code Stamp) and pertinent information as specified in Paragraph UG-129 of the ASME "Boiler and Pressure Vessel Code", Section VIII.

In addition, all pressure relief valves shall be clearly and permanently marked with purchase order item number, job number, tag number and purchase order number.

Valve nameplate nomenclature shall be in accordance with ASME Code Section VIII, Paragraph UG-129 .

6.0 INSPECTION, TESTING AND ACCEPTANCE

6.1 General

The Purchaser reserves the right to witness any or all tests at the Original Equipment Manufacturer’s (OEM) works, Vendor’s works, and at site during installation and erection. The Vendor shall give sufficient notice before the start of any test to enable the Purchaser to schedule and arrange for attendance at the test location.

The pressure relief valves shall be tested at factory (Factory Acceptance Test abbreviated as FAT) and at site to verify performance. This shall include but not be limited to:

• Sound attenuation performance

• Hydrostatic test




• Performance test

• Packing and final inspection ready for dispatch

The Purchaser reserves the right to inspect the equipment at any time during manufacturing.

The Vendor shall provide the Purchaser with monthly reports in writing on manufacturing progress and shipping dates.

The Vendor shall submit an Inspection and Test Plan (ITP) for acceptance by the Purchaser, in accordance with the vendor documentation requirements.

After reviewing of the Inspection and Test Plan (ITP) the Purchaser shall mark Witness, Hold and Review points. An independent third party inspector may be appointed by the Purchaser to perform witness or review activities.

As a minimum the following stages will be subject to witness/hold/review by the Purchaser or Third Party Inspector:

• Visual inspection of all parts prior to assembly.

• Visual inspection of the assembled valve.

• Surface finish and profile verification at each phase of surface preparation and coating.

• Name plate checks

• Material certification checks

• Full dimensional checks

• Pressure tests including hydrotest

• Valve performance test

All technicians performing non-destructive testing shall be AINDT or ASNT accredited.

6.1.1 Visual Inspection

Visual inspections shall include surface finish and profile attained at each phase of preparation and coating and final coat, name plate checks, material certification checks and full dimensional checks.

The Vendor shall submit a proposal for allowing the Purchaser to inspect of valve internals, nozzle and disc faces, guide paths and blow down ports, to verify that there has been no ingress of grit during blasting or assembly and no forming and depositing of grinding or swarf.

Physical checks for correct springs i.e. spring number, stamping against nameplate shall be carried out by the Vendor and a record included in the Manufacturer's Data Report.




6.1.2 Third Party Inspection

The Vendor shall include in his quotation, under a separate heading, the cost of obtaining test witnessing and certification services of an approved inspection authority such as Lloyds, Det Norske Veritas or Bureau Veritas to approve testing of all relief valve(s) at the Vendor's factory or an agreed site.

6.2 Factory Acceptance Testing

6.2.1 General

Each valve shall be subjected to a hydrotest of the body and nozzle, a relief test, a pop test (only for pressure safety valve) and a seat leakage test, in accordance with API 527 as a minimum, plus all other tests required by applicable codes.

The bottled hydrocarbon gas used for the tests shall have a similar molecular weight to the process gas (+/- 5% variation is tolerable).

All valves shall be tested for cold differential test pressure. They shall also be tested for set leakage tested in accordance with the requirements of API 527 Section 5 at the specified set pressure.

For those shop tests which are to be witnessed in accordance with the Inspection and Test plan, the Vendor shall notify the Purchaser fourteen (14) calendar days before tests are to be made.

6.2.2 Hydrotesting of Body and Nozzles

The inlet and outlet sides of the valve shall be hydrostatically tested at a pressure not less than 1.5 times the maximum pressure rating of the outlet nozzle but not exceeding any back pressure limit. The nozzle shall be hydrostatically tested before assembly at 1.5 times maximum pressure rating of the outlet flange.

Valve Hydrostatic Pressure Test shall be conducted according to ANSI B16.34.

The valve internals shall be drained and dried after testing and suitable corrosion protection fluid applied.

All gasket surfaces are to be thoroughly cleaned of any gasket compound before preparation for shipment.

6.2.3 Pop Testing

The valve shall be calibrated by popping pneumatically at the cold differential test pressure.

Over pressure tests (10%) shall be carried out to show that the valves are performing correctly.




The Vendor shall record cold differential test pressure figures for inclusion in the Manufacturer’s Data Reports and Vendor’s Test Report. The test pressure data shall be engraved on valve nameplates.

All conventional valves shall have cold differential test pressures factory set and tested, and blowdown rings adjusted, with all adjuster caps and plugs car-sealed.

6.2.4 Seat Leakage Testing

The seat tightness of every relief valve shall be bubble tested after the pop tests.

The Vendor shall conduct a Seat Leak Test in accordance with either Section 2 or Section 5 of API 527. The test shall be conducted at 90% of the specified set pressure with flooded seat. The leakage acceptance criteria shall be as per section 2.3 or 5.3 of API 527 as applicable.

6.2.5 Non-Destructive Examination

6.2.5.1 Radiographic Inspection

All valve body welding shall be 100% radiographed in accordance with relevant Codes and Standards

6.2.5.2 Visual Examination

The surface of all castings and forgings shall be examined in accordance with ASME VIII, Division 1.

6.2.5.3 NDT Qualifications

All technicians performing non-destructive testing shall be AINDT or ASNT accredited.

1.16.3 Test Certificates

Vendor shall issue a test certificate covering each valve, fully compatible with the requirements of the governing authority in Vietnam.

The Vendor shall submit a Manufacturer’s Data Report (MDR) detailing identification and certification of all pressure retaining parts and which shall include mechanical properties and chemical composition analysis, mill certificates, heat numbers and certificates of conformance. Each certificate shall be reviewed and signed by the manufacturer’s authorised personnel as detailed in the Inspection and Test Plan.

Certificates shall be available at final inspection in the manufacturer’s works.




6.4 Manufacturer Data Report

6.4.1 General

Pressure safety relief valves and pressure safety valves shall be furnished by the Vendor complete with certified dimension drawings, calculation sheets, material certificates, heat numbers, mill certificates, valve non-destructive test certificates, any and all repair procedures, assembly and parts drawings and lists, installation operation and maintenance instructions, and functional test certificates.

The copies of certifications shall be held on record at the Vendor's premises for the life of the project. Each Certificate shall be signed by the Vendor's authorised personnel.

6.4.2 Reports

The following reports and certificates shall be supplied as part of the Manufacturers Data Report for each separable portion of the equipment:

• Reports on pressure test results.

• Reports on leakage testing.

• Reports on set pressure functional tests.

• Reports on non destructive examination for all valve bodies.

• Reports on impact testing (where applicable).

• Test Certificates.

• Material certificates.

The Manufacturer's Data Report shall be hardbound.

The Vendor shall provide the required Manufacturer's Data Reports as specified by the Vendor Data requirement table. The Manufacturer' Data Report shall contain a parts list cross referenced to the applicable material chemical composition certificates, material heat numbers, mill certificates, non destructive examination records and all other applicable test records.

6.4.3 Manuals

The Vendor shall provide a number of sets of hard bound installation, operation and maintenance manuals for each type of valve. The number of copies required is specified in the Vendor Data requirement table. A final set of installation, operation and maintenance manuals are to be submitted with the material shipment.

The maintenance manual shall include exploded views of the overall assembly and the valve and accessories as separate sub-assemblies. Each component shall be identified by a unique number by which it can be referenced in the event of replacement. The maintenance manual shall also list all the special tools necessary for assembly,




disassembly, overhaul and routine maintenance. These shall include lapping dollies and nozzle pullers.

6.5 Training Requirements

The Vendor shall organize the maintenance training for the person(s) nominated by the Purchaser. The Vendor shall submit a training plan containing training type, venue for training and cost to the Purchaser. The training shall be provided after agreement with the Purchaser.

6.6 Inspection and Test Plan (ITP) Requirements

Upon awarding of the contract to the Vendor by either a Purchase Order Number or a Letter of Intent from the Purchaser, the Vendor shall submit an Inspection and Test Plan (ITP) for acceptance by the Purchaser, in accordance with the Vendor Documentation Requirements. The ITP shall include Purchaser witness and hold points and advance notice periods as per the MPR Quality Requirements.

1.56.7 Site Acceptance

The Purchaser may conduct Site Acceptance Test abbreviated as SAT (as per tests listed in section 6.2.2/3/4) on the relief valves. The Vendor shall be fully responsible for re-setting them at Vendor’s expense if setting is found to be incorrect. The Vendor shall compile SAT report and submit to Purchaser for approval.

7.0 INSTALLATION AND COMMISSIONING

7.1 Shipping

The Vendor shall be responsible for shipping the item to Ho Chi Minh City and from Ho Chi Minh City to the corresponding warehouse. The Vendor shall be responsible for all government clearances and approvals.

All equipment shall be prepared for shipment in accordance with Specification No.01-0678-01-B-7-001 titled “Packing, Marking and Shipping Instructions”. Also, shipping requirements specified in API 526 shall be met.

7.2 Installation

The pressure relief valves shall be installed by others. The Vendor shall provide the installation instructions.




7.3 Pre-Commissioning

The Vendor shall provide the pre-commissioning procedures, checklist and instructions.

7.4 Commissioning

The Vendor shall submit the commissioning procedures, check list and instructions along with valve shipments. The Vendor may witness commissioning of the system.

The valves may “hot popped”. If valves pops below the set pressure then Vendor shall be responsible for re-setting them.

7.5 Commissioning Records

The ePCC will prepare the commissioning test records and submit to the Purchaser.

7.6 “As Built” Documentation

The Vendor shall submit as built documentation as stated in the Vendor Data requirement table.

8.0 COMMERCIAL REQUIREMENTS

8.1 General

This Specification should be read as only one aspect of the responsibilities and liabilities as outlined within the Vendor Contract, which contains more exact definitions, obligations and specific Terms and Conditions between the PARTIES applicable in the execution of this Project.

Any reference to the WORK(s) in the principle Terms and Conditions Contract shall by definition be equally applicable to the supply of original equipment, components, plant or equipment and/or services by the Supplier (Vendor) an authorised sub-contractor orf the Vendor when described within this Specification.

The commercial obligations of the Vendor Contract and the compliance with this Specification, shall not be limited to the commercial requirements outlined as follows:

1.18.2 Cost Basis

Any supply of materials, plant and equipment in accordance with this specification shall be solely on a LUMP SUM CONTRACT PRICE basis in United States Dollars. All indirect services and direct costs incurred by the Vendor shall be born by the Vendor as incurred costs that are included in the Price within the Vendor’s Contract. The PURCHASER shall not be liable for any additional payment for any items or scope of supply necessarily




required but not determined or foreseen by the Vendor in the award of the Vendor Contract.

1.28.3 Insurance

The Vendor shall provide to the PURCHASER a valid registered insurance certificate as evidence of maintaining, with an Insurance company acceptable to the PURCHASER, an adequate level of insurance cover for all liabilities that may be incurred in executing the full scope of work/supply as described within this Specification. Failure to provide documentary evidence of such insurance cover within 15 days from the execution of the Vendor’s Contract shall permit the PURCHASER to make the Contract void.

1.38.4 Retention/Security

On execution of the Vendor’s Contract, the PURCHASER requires the Vendor to submit two (2) irrevocable stand-by Letters of Credit or unconditional Bank Guarantees from a bank approved by the PURCHASER. Each security shall be for 5% of the value of the Vendor’s Contract.

Recovery of the first security shall occur on effective completion of testing or delivery at the nominated delivery point of the material, plant or equipment as per the scope of this Specification.

Recovery of the second security shall not occur before twelve (12) months after satisfactory commissioning of the plant or equipment on site as per this Specification.

1.48.5 Subcontractors/Suppliers

The Vendor shall execute the Vendor Contract in strict accordance with this Specification. The Vendor is not permitted to engage any sub-contractors, other Vendors and/or alternative component suppliers without first notifying and obtaining approval from the PURCHASER. Any alternative model, type, mode of attachment and/or component specification or performance must have prior approval in writing from the PURCHASER or his authorised representative.

1.58.6 Expediting

The Vendor must produce and maintain a detailed manufacturing/delivery schedule while expediting materials, components and sub-assemblies to comply with this Specification and the Terms of the Vendor’s Contract. Monthly reports shall be issued by the Vendor to the PURCHASER identifying the progress of the work/supply of the equipment.

Any modifications, delays, rework in manufacture, assembly, or commissioning while executing this Specification or termination of the Vendor’s Contract, remains the sole right of the PURCHASER, who may give due consideration for costs in accordance with the Terms of the Vendor’s Contract.




8.7 Taxes

The Vendor shall be responsible for the payment of all taxes, duties and charges assessed or levied by any appropriate government authority for any itemss of materials, plant, equipment, components and/or services either imported, sold locally or transported in the execution of this Specification.

8.8 Extension of Time

The Vendor must immediately notify PURCHASER of any undue influence that may impact on the delivery or commissioning of the materials, plant or equipment to comply with this Specification and indicate the anticipated delays for each event or circumstance during execution of the Contract. Any delay in the date of Practical Completion shall be in accordance with the terms of the Vendor Contract which requires the explicit written approval from the PURCHASER for each event or circumstance involved.

8.9 Guarantees

The Vendor shall undertake the execution of the Vendor Contract in accordance with this Specification, which includes the detail design, supply, manufacture, testing, delivery and the commissioning of the plant or equipment, if so specified.

As a guarantee is a Condition or Term of the Vendor’ Contract, the Vendor has a primary obligation to define the final commissioned performance for the particular item of plant and/or equipment (including all manufactured or supplied components) prior to issuing an appropriate guarantee certificate to the PURCHASER.

8.10 Warranties

The Vendor shall meet all of the requirements of this Specification and the terms of the Vendors Contract and shall warrant that the item of plant and/or equipment when delivered/commissioned is proper and fit for purpose and is of merchantable quality as intended by this Specification.

8.11 Practical Completion

Practical completion, is by definition, something less than (total) completion of the Vendor Contract and is signified by a Certificate when issued by the PURCHASER that the primary obligations of the Specifications, while having been delivered or commissioned on site, remains incomplete within the terms of the Vendor Contract.

The effective date of Practical Completion when formally acknowledged by both Parties will permit other Terms within the Vendor’s Contract to apply including partial payment for the materials, plant and equipment, until full compliance compliance withto this Specification occurs.




8.12 Liquidated Damages

This Specification is for materials, plant and equipment to be manufactured and/or delivered commissioned as part of an integrated engineering, procurement, construction and commissioning (ePCC) major pipeline project. Any delays leading to the non-availability of the commissioned plant and equipment on site that causes a direct loss of performance and damages to the PURCHASER, will be to the Vendor’s account.

Accordingly, the Vendor’s Contract will pre-calculate the anticipated costs to determine the level of Liquidated Damages that shall apply against the Vendor for the circumstances or events originating the non-compliance with this Specification,, or exceeding the effective delivery date or commissioning as required in the Vendor Contract.




APPENDIX A: Gas Composition




NORMAL GAS COMPOSITION Component Content (Ave Mole %)

1. Carbon Dioxide 1.88 2. Nitrogen 0.34 3. Methane 89.42 4. Ethane 4.26 5. Propane 2.38 6. i-Butane 0.58 7. n-Butane 0.54 8. I-Pentane 0.20 9. N-Pentane 0.12 10. n-Hexane 0.23 11. M-Cyclopentane 0.01 12. Benzene 0.005 13. M-Cyclohexane 0.00 14. n-Heptane 0.01 15. Toluene 0.005 16. Water 0.0177 17. Water Dewpoint 5°C @ 45 bar g 18. Total Sulphur Normal 11.5 ppm v, Maximum 21.6 ppm v 19. Hydrogen Sulphide Normal 10.1 ppm v, Maximum 20.2 ppm v 20. Mercaptans 1.4 ppm v 21. Mercury 1.8 ppb v 22. Hydrocarbon Dewpoint 5°C @ 42 bar g 23. Heating Value Normal 41 MJ/m3 (1100 BTU/ft3)

i1007, rev b, spec relief valves

Documents

j p kenny b

employee of j p kenny

j p kenny policy

client review b

client comments

pressure relief valve

client approval section

client approval jt ek