LUSAIL DEVELOPMENT - ... Design Guidelines for Mega-development and Sub-development Rev.02 LUSAIL DEVELOPMENT

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  • Project Name: Lusail Development

    Gas Distribution System Design Guidelines for Mega-development and Sub-development Rev.02

    LUSAIL DEVELOPMENT

    Gas Distribution System Design Guidelines for Mega-development

    and Sub-development

    Document No.: LUS-CPALL-MAQ-SPE-UT-0005

    REV. NO

    REASON FOR

    ISSUE

    ISSUED

    DATE DOCUMENT HISTORY STATUS

    PREPARED

    BY

    CHECKED

    BY

    APPROVED

    BY

    0 IFI 12-04-2012 A Muhamad

    Kamal Abdullah

    Abushaikha D. Reed Phillips

    1 IFI 10-05-2012 Lusail comments incorporated A Muhamad

    Kamal Abdullah

    Abushaikha D. Reed Phillips

    2

    IFI

    30-10-2014

    A

    Muhamad Kamal

    Vinod Kesavannair

    D. Reed Phillips

    REASON FOR ISSUE:

    IFR Issued for Review/Comment(s)

    IFI Issued for Information

    IFA Issued for Approval

    IFT Issued for Tender

    IFC Issued for Construction

    STATUS

    PFC Preliminary for Comment

    A Approved

    SS Superseded

  • Project Name: Lusail Development

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    CONTENTS

    1 INTRODUCTION 7

    2 SCOPE 7

    2.1 Gas distribution systems 7

    2.2 Gas utilization systems: 7

    3 DEFINITIONS 7

    4 COMPETENCY 8

    5 OBJECTIVE 8

    6 DESIGN PRINCIPLES 8

    7 DESIGN CRITERIA 9

    8 DESIGN PARAMETER 10

    9 CODES, STANDARD AND SPECIFICATIONS 11

    9.1 Institution of Gas Engineers & Managers (IGEM): 11

    9.2 British Standards Institute: 11

    9.3 European Standards Institute: 11

    9.4 National Fire Protection Association: 12

    9.5 American Society of Mechanical Engineers 12

    9.6 Gas Industry Services, UK 12

    9.7 Local Authority Regulations: 12

    10 DISTRIBUTION MAINS (MOP UP TO 4 BAR) 12

    10.1 Design Standards 12

    10.2 Design Criteria 12

    10.3 Feeder Mains 13

    10.4 Sector Mains 13

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    10.5 Mains Valves 13

    10.6 Feeder Mains Valves 13

    10.7 Sector Mains Valves 13

    10.8 Design Parameters 14

    11 GAS SERVICES DESIGN BASIS 14

    11.1 Design Standards 14

    11.2 Design Criteria 14

    11.3 Design Parameters 15

    12 PRESSURE REDUCING STATION (CUSTOMER PRIMARY METER) 16

    13 RISK ASSESSMENT 16

    14 PRODUCTS (HDPE PIPES, VALVES AND ACCESSORIES) 16

    14.1 HDPE High-density polyethylene pipe (Black Colour with Yellow Stripes) 16

    14.2 HDPE Fittings (Black Colour) 16

    14.3 HDPE Transition Fittings 16

    14.4 Sleeves 16

    14.5 PE Ball Valves 16

    15 JOINTING OF PIPES, FITTINGS AND VALVES 17

    15.1 General 17

    15.2 Electro-fusion Jointing 17

    15.3 Butt-Fusion Jointing 19

    15.4 PE Welder Qualifications 20

    16 STEEL PIPE, FITTINGS AND VALVES 20

    16.1 Pipe and Fittings Codes and Standards: 21

    16.2 Steel Pipe 22

    16.2.1 Technical Details 22

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    16.2.2 Marking 22

    16.3 Steel Fittings 23

    16.3.1 Technical Details 23

    16.3.2 Marking 23

    16.3.3 Gasket, Bolt & Nuts 23

    16.4 Steel Valves 23

    16.4.1 Valve Codes and Standards: 23

    16.4.2 Technical Details 24

    16.5 Cathodic Protection: 25

    16.6 Welding Qualification Record: 25

    16.7 Steel Pipeline Welding Inspector Qualifications 25

    16.8 Inspection & Testing 26

    16.9 Cost for NDT inspections and tests 26

    17 MATERIAL HANDLING AND STORAGE 26

    18 PIPE INSTALLATION 26

    19 VALVE INSTALLATION 28

    19.1 General 28

    19.2 Valve Locations 28

    19.3 Pre-Installation 28

    19.4 Valve Installation Details 28

    20 LABELING AND IDENTIFYING 29

    20.1 Warning Tape 29

    20.2 Tracer wire 29

    20.3 Marker Posts 29

    20.4 Stone marker 29

    21 TESTING AND COMMISSIONING OF PIPING 29

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    21.1 Scope 29

    21.2 Test pressure for Pneumatic Testing 30

    21.3 Procedure for Testing 30

    21.4 Test Equipment 30

    21.5 The criteria for testing are 31

    21.6 Safety Precautions 31

    21.7 Testing Procedure 31

    21.8 Test Failure 32

    21.9 Pressure Test Certificate 33

    21.10 Commissioning 33

    22 CIVIL WORKS FOR PIPE LAYING 34

    22.1 Design 34

    22.2 Existing Services, Utilities, etc. 34

    22.3 Trial Hole, Route survey, Excavation and Trenching 34

    22.4 Crossing 35

    22.5 Proximity to other Services, Utilities, etc. 35

    22.6 Backfilling and Reinstatement 35

    22.6.1 Surface Enclosure for Valves 35

    22.7 Route Marking 36

    22.8 Reinforced Valve Chamber 36

    23 CONSTRUCTION RECORDS 36

    24 DOCUMENTS TO SUBMIT PRIOR TO WORK 36

    25 QUALITY CONTROL 38

    APPENDIX 1 39

    APPENDIX 2 40

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    APPENDIX 3 41

    APPENDIX 4 42

    APPENDIX 5 43

    APPENDIX 6 44

  • Project Name: Lusail Development

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    1 INTRODUCTION

    The purpose of this document is to describe the works related to the supply, installation, testing, pre

    commissioning and commissioning of the buried gas pipelines for the gas distribution network at Lusail

    Development.

    This guideline is applicable for the Mega-development and Sub-development.

    2 SCOPE

    Due to non-availability of Natural Gas the network shall be designed base on Synthetic Natural Gas

    with similar Wobbe index. Later in future when Natural Gas became available, the system will be

    converted to use Natural Gas without any major modification.

    Marafeq is providing the guidelines for mega-development and sub-development whom undertaking the

    design and construction of synthetic natural gas distribution systems which will be connected to

    Marafeq’s gas piping system within its supply areas which include:

    2.1 Gas distribution systems

     Feeder Mains

     Distribution Pipelines

     Distribution Mains (MOP up to 4 bar)

     Gas Services (Gas Service Line)

    2.2 Gas utilization systems:

     Pressure Reducing Station (Customer Primary Meter) Installations

    The scope of this Design Guidelines is the design basis of Marafeq’s synthetic natural gas distribution

    and associated utilization systems within its gas supply areas.

    3 DEFINITIONS

     Client – The master developer Lusail Real Estate Development Company (LREDC) or its

    appointed representative.

     Contractor – The organization or its appointed representative, responsible for execution of the

    works

     Competency - The possession of a minimum level of knowledge, experience and proficiency

    required to collect appropriate information, make informed decisions, and physically take the

    needed actions to deliver the high-quality service of gas piping system installation.

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     Customer – The owner/ sub-developer in-charge of the building.

     Engineer – Marafeq’s supervision engineer or its appointed representative.

     Marafeq – The utility company which provides District Cooling, Gas supply and Waste

    Management services.

     Mega-developer – The owner of the district.

     Sub-developer – The owner of the building.

     Vendor – Any invited companies being fully eligible to submit the tender. The successful vendor

    will be the contractor or supplier.

     Supervising Consultant – Customer appointed representative.

    4 COMPETENCY

    Any contractor or person engaged in the design, construction, commissioning, inspection, operation,

    maintenance or alteration of a pipeline should be competent to carry out such work. This may achieved

    by an appropriate combination of education, training and practical experience.

    5 OBJECTIVE

    The Design Guidelines forms a part of a suite of technical documents and provides a platform for:

     Engineering instructions