GAIL Technical Spec.

8/18/2019 GAIL Technical Spec.

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VOLUME – II

PIPELINE ENGINEERING

SPUR LINES OF CHAINSA – JHAJJAR PIPE LINE

0 10.11.2008

DESIGN BASIS/JOB

SPECIFICATION/ STANDARD

SPECIFICATION/STANDARDS/

DRAWINGS/DATASHEET

REV. DATE


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Page 1 of 7

INDEX Volume – II

PIPELINE ENGINEERING

S.NO.

TITLE REV. SPEC. No. ofPages

JOB SPECIFICATION

1 Engineering Design Basis 0 0001-01-04-03-001 19

2 Piping Material Specification 0 0001-01-05-02-001 68

3Welding Specification forMainline for Transportation of

Gas

0 0001-01-04-02-001 52

4 Welding Specification Chart 0 0001-01-04-02-001-WSC1 01

5 Welding Specification Chart 0 0001-01-04-02-001-WSC2 02

6Specification for Geo Textilebags for Anti-Buoyancy

0 0001-01-04-02-002 06

7Technical Specification for Pre-Commissioning andCommissioning

0 0001-01-04-02-003 15

STANDARD SPECIFICATION – PIPELINES

1Specification for LongitudinalSeam Submerged Arc WeldedLinepipe (Onshore)

0 S-04-02-001 36

2Specification for Helical (Spiral)Seam Submerged Arc WeldedLinepipe (Onshore)

0 S-04-02-002 43

3 Specification for Seamless Pipe 0 S-04-02-003 06

4 Specification of ERW pipe 0 S-04-02-004 34

5Specification of External coating

– 3L PE Coating0 S-04-02-005 34

6Specification of Internal Epoxycoating 0 S-04-02-006 31

7 Specification of Ball Valve 0 S-04-02-007 17

8 Specification of Plug Valve 0 S-04-02-008 14

9Specification of Gas Powered

Valve Actuators0 S-04-02-012 14

10Specification for Seamlessfittings & Flanges, Size up to DN400 mm (16”)

0 S-04-02-013 07

(BIDDING DOCUMENT NO. - 8000000682)


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11Specification for flanges &Welded Fittings (Size DN 450mm (18") and above

0 S-04-02-014 07

12Specification for Long RadiusBends for Onshore Pipelines

0 S-04-02-015 10

13Specification for Flow Tee (BarTees) for Onshore Pipeline

0 S-04-02-016 12

14 Specification for Scraper Trapsfor Onshore Pipelines

0 S-04-02-017 17

15Specification for Pig Signaler forOnshore Pipelines

0 S-04-02-018 6

16Specification for InsulatingJoints for Onshore Pipelines

0 S-04-02-019 9

17Specification for CasingInsulator and End Seals

0 S-04-02-020 08

18Specification for Field JointCoating (Onshore Pipeline)

0 S-04-02-021 15

19Specification for ConcreteWeight Coating of OnshorePipelines

0 S-04-02-022 15

20Specification for Repair ofPolyethylene Coating

0 S-04-02-023 06

21Specification for Quick OpeningEnd Closure

0 S-04-02-024 08

22Specification for Pipeline RiverCrossings using HDD

0 S-04-02-025 15

23Construction of pipelinescrossing Roads, Rail Roads andMinor Water Crossings

0 S-04-02-026 11

24Major Water Crossing -Conventional Trenching

0 S-04-02-027 15

25Specification for PipelineConstruction (Onshore)

0 S-04-02-028 43

26Specification for HydrostaticTesting of Onshore Pipelines

0 S-04-02-029 22

27Specification for PipelineMarkers

0 S-04-02-030 05

28

Specification for Documentation

for Pipeline Construction 0 S-04-02-031 0929 Specification for Blasting 0 S-04-02-032 11

30Specification for DetailedPipeline Route Survey (Onshore)

0 S-04-02-033 17

31Welding Specification forFabrication of Piping

0 S-04-02-034 32

32Spec. for Instructions to Vendorfor Quality Data Requirement

0 S-04-02-035 10


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Page 3 of 7

33Spec. for Issue andReconciliation of Material

0 S-04-02-036 09

34Spec. for Pipeline InformationManagement system

0 S-04-02-037 06

STANDARD SPECIFICATION – PIPING

1 Technical Notes for Pipes 0 S-05-02-001 09

2 Technical Notes for Valves 0 S-05-02-002 17

3Technical Notes forButt Welded, Socket Weldedand Screwed Fittings

0 S-05-02-003 07

4Technical Notes for Flanges,Spectacle Blinds and Drip legs

0 S-05-02-004 05

5Technical Notes for Bolts andNuts

0 S-05-02-005 03

6Technical Notes forGaskets

0 S-05-02-006 03

7 Inspection and Test Plan forGaskets

0 S-05-06-001 04

8Standard Specification forFabrication and Erection ofPiping

0 S-05-02-011 16

9Standard Specification of "Non-Destructive Examination ofPiping"

0 S-05-02-012 16

10Specification for Inspection,Flushing and Testing of PipingSystem

0 S-05-02-013 10

11Specification for Shop and FieldPainting

0 S-05-02-014 49

12Standard specification of PMI at

Vendor's works.0 S-14-02-001 07

STANDARD DRAWING – PIPELINES

1Typical Right of Way forPipelines

0 S-04-01-001 02

2Typical Trench Dimensions forPipelines

0 S-04-01-002 01

3 Pipeline Symbols 0 S-04-01-003 014 Topographical Symbols 0 S-04-01-004 01

5Existing pipeline on sleepercrossing

0 S-04-01-005 02

6Pipeline Road/ HighwayUncased Crossing

0 S-04-01-006 01

7 Details of casing vent and drain 0 S-04-01-007 01

8 Casing pipe details 0 S-04-01-008 01


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9Existing Under Ground PipeCrossing (Type-I)

0 S-04-01-009 02

10Existing Under Ground PipeCrossing (Type-II)

0 S-04-01-010 02

11 Under Ground Cable Crossing 0 S-04-01-011 02

12 Over Head Power Line Crossing S-04-01-012 02

13

Typical trench dimension for two

or more pipelines in commontrench

0 S-04-01-013 01

14 K.M. Post 0 S-04-01-014 03

15 Typical ROU boundary marker 0 S-04-01-015 02

16 Aerial marker 0 S-04-01-016 03

17 Direction marker 0 S-04-01-017 03

18 Pipeline Warning Sign 0 S-04-01-018 03

19Navigable Waterway PipelineCrossing Warning Sign

0 S-04-01-019 02

20Pipeline Road/Highway Cased

Crossing0 S-04-01-020 02

21 Typical Stream Crossings 0 S-04-01-021 02

22 Typical Slope Breakers Details 0 S-04-01-022 03

23Bank Protection Details forwater crossings

0 S-04-01-023 03

24Typical details of railwaycrossings

0 S-04-01-024 03

25Select Backfill for Station

Approach0 S-04-01-026 02

26Slope stabilization in ghat/ hill

areas

0 S-04-01-027 02

27 Soil stabilization in hilly areas 0 S-04-01-028 03

28Typical lined canal casedcrossing detail

0 S-04-01-029 02

29Typical lined canal crossings(Uncased)

0 S-04-01-030 01

30Typical Cross section for ROUpreparation in Hilly areas

0 S-04-01-031 01

STANDARD DRAWING – PIPING

1 Jack Screw for Spectacle Blind 0 S-05-01-001 01

2 Jack Screw for Spacer & Blind 0 S-05-01-002 01

3 Vents & Drains on Lines 1-1/2”& Below

0 S-05-01-003 01

4 Vents & Drains on Lines 2” & Above

0 S-05-01-004 01

5Wells Installations 1-1/2”Diameter Traps

0 S-05-01-005 02

6 Pressure Tapings – PG, PT, PI, 0 S-05-01-006 01


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PA, PC etc

7Handle Projections for Spacersand Blinds

0 S-05-01-007 01

8T-Strainer Type-1 2"-4" (150#RF, 300# RF and RTJ, 600# RFand RTJ)

0 S-05-01-008 01

9

T-Strainer Type-1 6"-24"

(150# RF, 300# RF and RTJ,600# RF and RTJ)

0 S-05-01-009 01

10 Orientation of Orifice Traps 0 S-05-01-010 01

11 Stub-in Standard 0 S-05-01-011 02

12Welding of pipe with differentthickness

0 S-05-01-012 01

13 Fillet weld details 0 S-05-01-013 01

14Welding details for branchconnections

0 S-05-01-014 01

15

Method of cutting and

dimensions of fieldmanufactured concentricreducers

0 S-05-01-015 01

16 Tolerances for fabrication 0 S-05-01-016 01

17Pipe shoe for hot insulated C.S.pipe, size 2" thru 8", Type-S1(for temp. up to 343°C)

0 S-05-01-017 02

18Pipe shoe for hot insulated C.S.pipe, size 10" thru 30", Type-S2.(for temp. up to 343°C)

0 S-05-01-018 02

19Pipe saddle for bare pipe size14” thru 48” type- S6A 0 S-05-01-019 02

20Pipe shoe for slope line pipe size2" thru 6" type-S9A/9B/9C

0 S-05-01-020 02

21Low support sliding for bare andinsulated pipe size 2" thru 36"type-L1 & L1A

0 S-05-01-021 02

22Low support fixed for bare &insulated pipe size 2" thru 36"type-L3 & L3A.

0 S-05-01-022 01

23

Low support sliding for bare

pipe size 3/4" thru’ 36" type-L5& L5A.

0 S-05-01-023 01

24Low support sliding for bare andinsulated pipe size 2” thru 36”Type-L6

0 S-05-01-024 02

25Low support Fixed/Restrainedfor bare and insulated pipe size2" thru 36", type-L7 & L7A

0 S-05-01-025 03


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26Restrained Low support for bareand insulated pipe size 2" thru36", type-L8 & L8A

0 S-05-01-026 01

27 Adjustable low support slidingfor pipe size 2" thru 6" type-L10 & L10A

0 S-05-01-027 01

28

Low support sliding & fixed for

pipe size 3/4" thru 11/2"type-L15.

0 S-05-01-028 02

29Low support stanchion for bare& insulated CS/AS/SS pipetype – L16 and L16A

0 S-05-01-029 01

30 Adjustable low support with 4bolts for pipe size 8" thru 24"type-L17 & L17A.

0 S-05-01-030 02

31 Adjustable low support for bareand insulated pipe size 2" thru

24". type-L18 & L18A

0 S-05-01-031 01

32

Adjustable low support withguide & cross guide for bareand insulated pipe size 2" thru24" type-L19 & L19A.

0 S-05-01-032 02

33Pipe clamp for bare pipe size1/2" thru 24” Type C-1

0 S-05-01-033 01

34U-bolt for bare pipe size 1/2"thru 24" type-C4

0 S-05-01-034 01

35Dummy pipe support for barepipe size 2" thru 24" type B-39

0 S-05-01-035 02

36Dummy pipe support forinsulated pipe size 2" thru 24"type-B40

0 S-05-01-036 02

37 Pipe support brackets type-B42 0 S-05-01-037 01

38Guide support for bare size 1/2"thru 24" type-G1

0 S-05-01-038 01

39Guide support for bare size 1/2"thru 24" type-G2 & G2A

0 S-05-01-039 02

40Cross guide for bare pipe size 2"thru 24" type-G3

0 S-05-01-040 02

41 Cross guide for bare pipe size 2"thru 24" type-G4.

0 S-05-01-041 02

42 Anchor for bare pipe size 2" thru24" type-G5.

0 S-05-01-042 02

43Supporting arrangement forangle & relief valves type-SP2.

0 S-05-01-043 01

44Typical anti vibration support forcontrol valve-SP3.

0 S-05-01-044 01


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LAYOUT DRAWING & PORTACABIN PLAN

1Layout Sultanpur DispatchTerminal

0 0001-00-10-01-6002 01

2Layout SV-1 (Sultanpur -Neemrana)

0 0001-00-10-01-6003 01

3 Dharuhera CGS & TOP 0 0001-00-10-01-6004 01

4Layout Bhiwadi / Chopanki TOPStation

0 0001-00-10-01-6005 01

5 Layout Bhiwadi CGS 0 0001-00-10-01-6006 01

6 Layout SV-2 & Khushkhera CGS 0 0001-00-10-01-6007 01

7Layout SV-3, Sultanpur -Neemrana

0 0001-00-10-01-6008 01

8 Layout Neemrana CGS & RT 0 0001-00-10-01-6009 01

9Layout Hayatpur TOP (forManesar)

0 0001-00-10-01-6010 01

10 Layout Manesar CGS 0 0001-00-10-01-6011 01

11 Layout Hayatpur PRS 0 0001-00-10-01-6012 0112 Layout SV-1 (Gurgaon Line) 0 0001-00-10-01-6013 01

13 Layout Gurgaon Terminal 0 0001-00-10-01-6014 01

14 Porta-Cabin Layout 0 0001-00-10-01-6015 02

DATASHEETS – LINEPIPE / PIPING

1 Datasheet of Ball Valve 0 0001-01-04-04-BV-001 01



4Datasheet of Scraper Launcher /

Receiver

0 0001-01-04-04-PL/PR-001 01

5 Datasheet of Pig Signaler 0 0001-01-04-04-PSG-001 01

6 Datasheet of IJ 0 0001-01-04-04-IJ-001 01

7Datasheet of Flow Tee (BarredTee) - 18" X 18" , 600#

0 0001-01-04-04-FLT-001 01


0 0001-01-04-04-FLT-002 01


0 0001-01-04-04-FLT-003 01

10Datasheet of Quick Opening EndClosure

0 0001-01-04-04-QOEC-001 01

11Datasheet of Gas Powered Valve

Actuator0 0001-01-04-04-GVA-001 04

12 Datasheet of Plug Valve 0 0001-01-04-04-PV-001 01

13 Datasheet of Plug Valve 0 0001-01-04-04-PV-002 01

14Data Sheets of Gate Valves ofSize below 2”

0 0001-01-05-04-GV-001 03


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SPECIFICATION REV-0

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NEW DELHI

ENGINEERING DESIGN BASIS

PIPELINE ENGINEERING 0001-01-04-03-001Page 1 of 19

Copyright GAIL – All rights reserved


(PIPELINE ENGINEERIG)

SPUR LINES OF CHAINSA – JHAJJAR PIPELINE


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TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 SCOPE

3.0 DESIGN CODES AND STANDARDS

4.0 DESCRIPTION OF FACILITIES

5.0 PIPELINE ROUTE

6.0 DESIGN DATA

7.0 PIPELINE AND ASSOCIATED FACILITIES DESIGN

8.0 OTHER TECHNICAL REQUIREMENTS

ANNEXURE-A LIST OF CODES AND STANDARDS

ENCLOSURES:

1. Schematic Arrangement for Pipeline Facilities Drawing no. 0001-00-03-01-5003.


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1.0 INTRODUCTION

M/s GAIL (India) Ltd., proposes to lay following Natural Gas spur Pipelines (fromChainsa- Jhajjar pipeline):-

Sl. Pipeline Tap-off Point Size(Inch) X

Length (Km)

1 SultanpurHaryana) toNeemrana(Rajasthan)

Tap-off point atChainage – 70.05 Km inChainsa-Jhajjar line

18” X 85.28

2 Spur Lineto Bhiwadi

Tap-off point at Chainage –31.6 Km in Sultanpur –

Neemrana Line

12” X 9

3 Hayatpur toManesar

Tap-off point atChainage – 61.14 Km inChainsa-Jhajjar line

10” X 5.4

4 Hayatpur toGurgaon

Tap-off point at Chainage –61.14 Km in Chainsa-Jhajjarline

10” X 11

These pipelines are to cater the natural gas requirement of consumers atDharuhera, Bhiwadi, Khushkhera, Neemrana, Manesar and Khandsa/Gurgaon. TheSultanpur-Neemrana pipeline is proposed to pass through Dharuhera andKhushikhera.

The above proposed pipeline shall have laying length as given above and 4 nos. ofSectionalising Valve (SV) stations. The pipeline shall be designed to handle NaturalGas & RLNG.

2.0 SCOPE

This document establishes minimum design parameters and basis for design anddetailed engineering of the Pipeline and Associated facilities covered under thisproject as defined briefly herein below.

3.0 DESIGN CODES AND STANDARDS

Pipelines and terminal facilities envisaged shall be designed and engineered


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primarily in accordance with the provisions of the latest edition of Code ASME B31.8: Gas Transmission and Distribution Piping Systems and OISD 141: Design andConstruction Requirements for Cross Country Hydrocarbon Pipelines. In addition,requirements, as applicable to gas service of following codes/standards shall becomplied with:

OISD Std. 138 Inspection of Cross Country Pipelines-Onshore

ASME B 31.3 Chemical Plant & Petroleum Refinery Piping

API Std. 1102 Steel Pipeline Crossing Railways & Highways

API Std. 1104 Standard for Welding Pipelines and Related Facilities

ISO 13623 Petroleum & natural gas industries – Pipeline transportationsystems

In addition to above, codes and standards listed in Annexure-A of this document

shall also be referred.

In case of conflict between the requirements of ASME B31.8/OISD 141 and othercodes/Standards referred above, requirement of ASME B 31.8/OISD 141 shallgovern. In case of conflict between requirements of B31.8/OISD 141 and thisdocument, requirements of this document shall govern.

4.0 DESCRIPTION OF FACILITIES

Details of facilities shall be as per P&ID’s, process design basis, data sheets, lineschedule etc covered in the process package. The pipeline facilities envisaged as a

part of Spur Line of Chainsa-Jhajjar Pipeline are described briefly herein below.

4.1 SULTANPUR – NEEMRANA LINE

4.1.1 Despatch cum Receipt Station at Sultanpur and Neemrana

Facilities at Despatch cum Receipt Station at Sultanpur & Neemrana terminals shallconsist of Pig launcher cum receiver complete with associated piping including hook-upwith existing Chainsa-Jhajjar Pipeline at Chainage 70.50 Km in Sultanpur. AdditionallyNeemrana terminal shall have filtering, metering and let down skid (CGS).

4.1.2 SV & TOP at SV-1 (Ch. 16.02 Km), SV-3 (Ch. 62.2)

Tap-off with flow tee and valve. Provision for Insulating Joint at the buried/above groundtransition in the above ground section of pipeline. Sectionalizing Valve in Main line.

4.1.3 TOP & CGS at Dharuhera, BhiwadiTap-off with flow tee and valve. Provision for Insulating Joint at the buried/above groundtransition in the above ground section of pipeline. Filtering, metering and let down skidwith associated piping and Instruments.


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4.1.4 SV-2 , TOP and CGS at KhushkheraTap-off with flow tee and valve. Provision for Insulating Joint at the buried/above groundtransition in the above ground section of pipeline. Sectionalizing Valve in Main line.Filtering, metering and let down skid with associated piping and Instruments.

4.1.5 Bhiwadi/ Chopanki TOP for BhiwadiTap-off with flow tee and valve all underground.

4.2 HAYATPUR – MANESAR LINE

4.2.1 TOP Hayatpur for Manesar LineExtending the existing Tap-off off with valve. Provision for Insulating Joint at theburied/above ground transition in the above ground section of pipeline

4.2.2 TOP & CGS at Manesar

Tap-off with flow tee and valve. Provision for Insulating Joint at the buried/above groundtransition in the above ground section of pipeline. Filtering, metering and let down skidwith associated piping and Instruments.

4.3 HAYATPUR – GURGAON LINE

4.3.1 PRS at Hayatpur Extending the existing Tap-off off with PRS/ valve. Provision for Insulating Joint at theburied/above ground transition in the above ground section of pipeline

4.3.2 SV-1 – Gurgaon Line (Ch. 6.4 Km)Sectionalizing Valve (underground) at Chainage 6.4 Km.

4.3.2 Gurgaon Terminal StationProvision for Insulating Joint at the buried/ above ground transition in the above groundsection of pipeline. Tap-off with Valve and Blind as per P&ID.

4.2 Main Pipeline

Pipeline facilities are schematically indicated in drawing no. 0001-00-03-01-5003.

5.0 PIPELINE ROUTE

5.1 Pipeline Route

Salient features of the surveyed pipeline route as per pipeline route map no. MAS/GAIL/ CGJHPL/08/ RM-01/02/03/04, GAIL/ SKP/ GURGAON/ 2008/ R.M./01 (Rev.-0), and survey report are tabulated herein below:


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SALIENT FEATURES OF RESPECTIVE PIPELINE ROUTE

Sultanpur –Neemrana

Spur Lineto Bhiwadi

Hayatpur -Manesar

Hayatpur -Gurgaon

Size, OD ( Inch) 18 12 10 10

Length (Km) 85.28 9 5.4 11

Highest elevationabove MSL (m)

Refer SurveyReport

ReferSurveyReport

Refer SurveyReport

Refer SurveyReport

Lowest elevation above

MSL (m)

Refer SurveyReport

ReferSurveyReport

Refer SurveyReport

Refer SurveyReport

No. of River Crossing ,Width > 100 m

0 0 0 0

No. of Road Crossing

(NH/SH)

3/2 0/2 0/0 1/0

No. of Railway

Crossing

3 0 0 0

No. of Canal Crossing 6 0 0 0

5.2 Terrain Details

For Terrain details and Land use pattern refer survey reports prepared by M/s MASCONMSC PVT. Ltd and M/s SKP Projects P. Ltd. attached elsewhere in the bid document.

6.0 DESIGN DATA6.1 Main pipeline shall be designed for conditions as follows:

PIPELINE DESIGN PARAMETER

Description Value

Sultanpur – Neemrana Line 457.2 mm OD

Bhiwadi/ Chopanki Tap-off – Bhiwadi Line 323.9 mm OD

Hayatpur to Manesar 273.1 mm OD

Hayatpur to Gurgaon

PRODUCT – Natural Gas/ RLNG

Design Pressure (Kg/ Cm2g) 99.93

Operating Pressure (Kg/ Cm2g) 60-99

Maximum Design Temperature, 0 Ci. Above Ground Section

ii. Under Ground Section

-29 to 65.0

-29 to 45.0Operating Temperature, 0 C 13 - 25

Economic Design Life, Years 35

Corrosion Allowance 0

Hayatpur to Gurgaon – Design Pressure shall be 49Kg/cm2 g and Design Temp AG/UG (-) 29 to 65 /(-) 29 to 45. Rest other parameter shall be as above.

273.1 mm OD


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All terminal facilities (equipment and associated piping) shall be designed for designand operating conditions given in the process package.

7.0 PIPELINE AND ASSOCIATED FACILITIES DESIGN

7.1 General

Pipeline and pipeline stations to be installed as a part of this project shall be designedand engineered in accordance with the standards/codes referred in section 3.0 of thisdocument.

7.2 Pipeline

7.2.1 Pipeline shall be designed in accordance with requirements of ASME B 31.8 and OISD141. The pipeline shall withstand all installation, testing and operating condition/ loads.

All necessary calculations shall be carried out to verify structural integrity and stability

of the pipeline for the combined effect of pressure, temperature, bending (elastic),soil/pipe interaction, external loads and other environmental parameters as applicableduring all phases of work from installation to operation. Allowable stress limit shall beas per ASME B 31.8. Such calculations shall include, but are not limited to following:

- Buoyancy control and stability analysis for pipeline section to be installed in areassubjected to flooding/submergence. Unless specified, specific gravity of installationin such area shall be at least 1.2.

- Stress analysis at crossing of major rivers, rail and highway etc.

- Crossing analysis of rivers by HDD if applicable.

- Pipeline expansion and its effect on station piping (above ground/below ground).

7.2.2 Pipeline shall also be checked for adequacy against anticipated earthquake loading andany special measures such as increase in wall thickness/ grade/ select backfill etc. asrequired to ensure safety and integrity of the pipeline system shall be implemented.

7.2.3 Mainline shall be provided with bi-directional pigging facilities suitable for handling alltypes of pigs including intelligent pigs.

7.2.4 Pipeline and its associated facilities shall be designed using the applicable design code

and as modified below.

The pipeline shall be designed to meet the Location Class as defined in ASME B31.8,except as modified below.


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LocationClass

Type of Facility Design Factor

All Station Piping 0.5

River / Stream Crossings

Drilled / Bored/ Inaccessible / OpenCut

0.6

Others 0.72

HDD 0.5

Cased/Uncased Crossings or ParallelEncroachments on ROW of Hard SurfacedRoads, Public Streets and Highways

0.6

Class – 1

Railway Crossing 0.5

River / Stream Crossings

Drilled / Bored/ Inaccessible / OpenCut

0.5

Others 0.6 HDD 0.5

Cased/Uncased Crossings or ParallelEncroachments on ROW of Hard SurfacedRoads, Public Streets and Highways

0.5

Class – 2

Railway Crossing 0.5

Class – 3 All 0.5

Class – 4 All 0.4

7.3 Station Piping

7.3.1 Station piping to be provided at terminals, intermediate stations, SV stations shall bedesigned in accordance with OISD 141/ASME B 31.8 and utility piping to be provided atthese locations shall be designed in accordance with the provisions of ASME B 31.3.

7.3.2 All piping shall be designed for combined effects of pressure, weight and temperatureduring operating conditions without over stressing the piping, valves or equipment. Allpiping shall be adequately supported, guided or anchored so as to prevent unduevibration, deflection or loads on connected equipment such as filters, meters etc.

7.4 Materials

Pipeline and its appurtenances shall be provided with carbon steel materials suitable forthe intended service, as detailed in subsequent paragraphs

7.4.1 Line pipe for main line

Line pipe shall conform to API 5L and Company specifications. Type of line pipe to beused shall be SEAMLESS/LSAW/ HSAW/EW.


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Sr.No.

LINE SIZE GRADE Class - I Class - II Class - III Class -IV

1 18”(457.2 mm) X-70,PSL-2

6.5 7.9 9.3 11.7

2 12” (323.9 mm) X-60,PSL-2

6.4 6.4 7.9 9.5

3 10” (273.1 mm) X-60,PSL-2

6.4 6.4 6.4 7.8

7.4.2 Other Materials

All other materials and equipments including scraper traps, flow tees, insulating joints,ball valves, plug valves, globe valves, check valves, pig signallers, flanges and fittingsshall be carbon steel suitable for the service conditions and shall be compatible with theline pipe material.

7.5 External/ Internal corrosion coating

7.5.1 Pipeline to be installed below ground shall be protected against external corrosion by acombination of high integrity externally applied coatings and permanent impressedcathodic protection system. Externally applied coating shall be three layer side extrudedpolyethylene coating.

7.5.2 In addition, pipeline shall be provided with minimum 80 micron thick liquid epoxyinternal coating conforming to ISO 15741/API RP 5L2. Extremities of pipe shall be freefrom coating over a length of 20± 5 mm.

7.5.3 All above ground piping and structures shall be painted to prevent atmosphericcorrosion. Painting of above ground piping and structures shall be as per specifications.Painting shall be suitable for normal corrosive environment/corrosive environment, asapplicable, as defined in Painting Specification No. S-05-02-014 for all stations andterminals.

7.6 Insulating joints

Insulating joints shall be provided to electrically isolate the buried pipeline from aboveground pipeline. Insulating joints shall be monolithic type and shall allow smoothpassage of pigs. Insulating joints shall be installed in above ground portion of thepipeline, immediately after the buried/aboveground transition at the scraper stations.

Wherever pressure/ temperature transmitters are used on cathodically protectivepipeline the same shall be electrically isolated by providing insulating joints/ flanges.

7.7 Pipeline Burial

The pipeline shall be buried normally at a depth of 1.0 meter below natural ground levelexcept river/ rail/ road/ canal/waterways crossing where minimum cover shall be as


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given below or as per the requirements of statutory/local authorities whichever is morestringent. Increased cover shall be provided at critical locations and crossings.

Sl.Location

Minimum Cover(m)

1.0 Industrial, commercial and residentialarea

1.0

2.0 Rocky terrain 1.0

3.0Minor water crossing/ canal/ drain/nala/ waterways

1.5

4.0 HDD crossing of canals (below bed) 2.5

5.0River crossings for which scour depthis defined (below scour)

1.5

6.0

Other River crossings (Bank width >

50m) (Below Bed)2.5 (For normal soil)1.5 (For rocky strata)

7.0Other River crossings (Bank width <50m) (Below Bed)

1.5

8.0 Cased/uncased road crossing 1.2

9.0 Cased railway crossing 1.7

10.0Drainage, ditches at roads/railwaycrossings

1.2

11.0 Marshy land/Creek area 1.5

Additional soil cover other than specified above shall be provided at locations indicatedby statutory/ local authorities or in areas likely to have an increased risk of impactdamage or third party interference as per agreements between COMPANY andauthorities. In case, any private dwelling, industrial building or place of public assemblyfalls within 15 m of pipeline, additional cover of minimum 300 mm shall be provided overand above the cover indicated in the above table.

7.8 Marshy Areas / Areas Prone to Flooding

Wherever marshy areas/areas prone to flooding are encountered along the pipelineroute, pipeline shall be provided with anti buoyancy measures viz. continuous concretecoating/ Geotextile gravel filled bags. Unless specified otherwise in AFC drawings,specific gravity of installation in such areas shall be at least 1.2.

7.9 Pipeline in common ROW

The location of new underground pipeline, when running parallel to an existingunderground pipeline in same ROU/ROW shall be laid at minimum clear distance of 5.0m from the existing underground pipeline. This distance may be reduced to 3.0 m after


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assessment of construction methodology which do not result in unsafe conditionsduring construction.

7.10 Backfilling

In normal cross-country areas, the pipeline trench shall be backfilled with excavatedsoil. Select rockfill/ slope breakers shall be provided in the trench in steep areas (slopegenerally 10% and more) to prevent erosion. In case of rivers/water bodies prone toscour and erosion, the safety cover shall be provided below the predicted scour level. Inaddition to the cover, anti buoyancy measures (concrete coating) shall be provided atriver crossings.

Contractor shall keep top 150 mm of excavated top soft soil (free of gravels) aside,which shall be back filled in the end as top layer.

Select backfill shall be provided at approaches to terminal up to transition point (belowground/above ground) inside terminal.

Select back fill shall also be provided as applicable for areas prone to seismic activity.Recommendation of Seismic Analysis Report should be considered for such specialbackfill.

Pipeline route shall be examined to establish any drainage requirement in hilly terrain.In case required, the drainage shall be designed to prevent trench flooding duringconstruction and protect the integrity of the installed pipeline following completion of allconstruction activities.

In rocky areas, the trench bottom shall have sand/soft soil padding of 150 mm. Afterlaying of pipeline, sand/soft soil padding shall be placed around and on top of the pipe

so that thickness of compacted padding on top of pipe corrosion coating shall be atleast 150 mm.

Disposal of debris and surplus material to designated disposal areas or designatedplace(s), as the case may be and as directed by Engineer-in-charge shall be carried out.

8.0 OTHER TECHNICAL REQUIREMENTS

8.1 Scraper Stations

Scraper traps shall be provided at the Despatch terminals (Sultanpur) and Receiver

Terminal at Neemrana. The scraper traps shall be bi-directional capable of handlingintelligent pigs and other cleaning pigs. The launching and receiving barrels shall bedesigned in accordance with the requirements of ASME B 31.8 and its end closure shallbe designed and fabricated according to ASME Section VIII, Div.1. Adequatearrangements for launching, retraction, handling and lifting of cleaning andinstrumented pigs shall be provided at the scraper stations. Traps shall be accessibleby walkway/road for movement of equipment, pigs etc. These stations shall be providedwith access road from the nearest metalled road.


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Corrosion resistant coating shall be provided on the pipeline up to a minimum length of500 mm after it comes aboveground / before it gets buried underground at terminalsand scraper stations.

The diameter of barrel of the launcher cum receiver shall be three nominal sizes largerthan the pipeline nominal size. Center line elevation of scraper trap shall be at suitableheight from grade level. Suitable arrangements shall be provided for handling & liftingof pigs.

The piping system at the terminals and intermediate stations shall be designed to havesufficient flexibility to prevent pressure and thermal expansion or contraction fromcausing excessive stresses on the connected equipment. The piping shall bedesigned/fabricated as defined in clause 8.3.

As far as possible, pipeline expansion shall be absorbed by allowing the scraper traps tomove on supports. Installation of anchor block in the under ground pipeline is not

permitted. If required adequate length of trench in approaches to stations shall beprovided with a select backfill to ensure flexibility.

8.2 Sectionalising Valve Stations

Sectionalising valve station shall be provided along pipeline route for isolating sectionsof pipeline as per ASME B 31.8 for:

- Limiting the hazard and damage from accidental discharge from pipeline system.

- Facilitating maintenance of pipeline system and

- Complying with the requirements of applicable codes.

The location of sectionalizing valves are indicated in PFD. The requirements ofapplicable codes taking consideration of terrain features, requirement of safety andoperation etc. to be taken in to account while providing Sectionalizing Valves.Sectionalizing valve on the main pipeline shall be ball valves of full bore type, to allowsmooth passage of cleaning and intelligent pigs.

All valves installed at Intermediate facilities, block valve stations, scraper stations andpipeline sectionalizing valve stations shall be gas actuated/ hand operated and with buttwelding ends. Sectionalizing and Station block valves shall be installed buried andprovided with a stem extension in such a way that the center line of rim of the handwheel on a horizontal shaft or center of actuator is at approximately 1.0 m above the

finished ground level. Valve surface shall be provided with corrosion protection coating. Valve body vent and drain lines shall be extended and terminated above ground.

The valve stations shall be located at a readily accessible location such as near road andshall be provided with an access road from the nearest all weather metalled road. Thefacilities within valve station shall be secured by a chain link fence enclosure with gate.The location of valve station shall be clear of overhead power lines.

The provisions of remote operated feature shall be as per the operation and control


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philosophy to be adopted for the project. At locations, where valve stations arecombined with CP/Repeater stations, the safe distance and statutory clearance as perstandard shall be followed.

8.3 Piping

8.3.1 General

This section describes the design requirements of piping applicable for Despatchstation, intermediate pigging stations, sectionalizing valve stations and receiving station.

All piping and equipment shall be designed as per ASME B 31.8. All piping materialsshall be as per Piping Material Specification (PMS).

Utility piping to be provided shall be designed in accordance with the provisions of

ASME B 31.3.Design shall provide consideration for all loadings like weight, temperature etc.,significantly affecting the pipe material stresses in addition to fluid pressure.

8.3.2 Piping flexibility/stress analysis

All piping shall be designed for thermal expansion under start up, operating and shutdown conditions without over stressing the piping, valves or equipment. Provisions forexpansion shall normally be made with bends and offsets.

All piping shall be adequately supported, guided or anchored so as to prevent unduevibration, deflection or loads on connected equipments. Equipments/ valves requiring

periodical maintenance shall be supported in such a way that the valves and equipmentcan be removed with minimum temporary pipe supports.

8.3.3 Piping layout

Piping will be located above-ground wherever possible within the terminals. Piping shall be designed considering skin temperature of piping material under empty

conditions as 65ºC or design temperature of pipeline whichever is higher.

Piping stress analysis shall be carried out to determine allowable pipe movement andsupport requirements wherever felt necessary.

Buried piping inside the terminal area will have a minimum depth of cover of 1.2 m. Where buried pipes come out of the ground, the underground coating on the pipe will

continue for a distance of 500 mm above ground. Platforms, crossovers shall be provided for ease of operation and maintenance. Platform for filters shall be provided for maintenance/ operational access. Painting above ground piping and structures shall be as per specifications enclosed in

the Bid package.

8.4 Welding


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Welding shall be carried out in accordance with API 1104, specification for welding andwelding charts. Butt welds shall be 100 % radio graphed / automatic UT for automaticwelding, as applicable for all pipelines.

For gas service all butt welds for process piping shall be 100% radiographed and forutility piping NDT requirements shall be as per specification no. S-05-02-12.

8.5 Hydrostatic Testing

After installation, the entire pipeline system shall be hydrotested with inhibited water.The water shall tested, as applicable prior to using for hydrotesting. The minimumhydrostatic pressure in any section shall be as per ASME B 31.8 for gaseoushydrocarbon pipelines. The maximum hydrostatic test pressure at any location of thepipeline shall not exceed the pressure required to produce a hoop stress equal to 95%of SMYS of the pipe material based on minimum wall thickness in the test section. Thetest duration shall be minimum 24 hours. Hydrostatic testing of terminals shall becarried out separately. Terminals as well as other intermediate facilities shall be tested

at 1.4 times the design pressure. The test duration shall be 6 hours. Mainline valvesshall be installed after successful completion of hydrotesting.

8.6 Dewatering and swabbing

Dewatering, swabbing and pre-commissioning operations shall be carried out afterhydrotesting and prior to commissioning of the pipeline as per Project specifications.For gaseous hydrocarbon pipeline the line shall be dried. Swabbing shall be carried outprior to installation of Sectionalizing valves. After swabbing operation the pipelinesections shall be dried as per relevant specification enclosed with the tender.

8.7 Crossings

8.7.1 Water Crossings

All water crossing shall be installed by open cut. The requirement of HDD at any watercrossing shall be finalized during detailed engineering.

Wherever there is an evidence of bank erosion, the banks shall be protected by usinggravel and boulders filled embankment mattresses of galvanized iron wire to be laidover the backfilled, compacted and graded banks.

8.7.2 Rail Crossing

Pipeline at rail crossings shall be provided with casing pipe. The size of Casing pipe

shall be – 609.6 mm O.D. (24”), 6.5 mm WT, API 5 L Gr. X70, LSAW/ HSAW (unlessadvised otherwise by concerned authorities) and shall be installed by boring/ jacking/HDD/ ramming. The rail crossing shall comply with the requirements of API 1102 andIndian Railway Authorities. The crossing angle shall be as close to 90º as possible. Itshould be noted that the extent of casing pipe generally specified by Railways is 14.0 mbeyond centerline of the outermost tracks on either side or 0.6 meter beyond the ROUlimits of Railways on either side, whichever is more. Carrier pipe shall be electricallyinsulated from the casing pipe and casing ends shall be sealed using durable,


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electrically non-conducting materials. The crossing drawing shall be subject to approvalof concerned Railway Authorities prior to implementation.

8.7.3 Road Crossing

Road crossings shall comply with the requirements of API 1102 and the requirements ofthe concerned road authorities. Unless otherwise required by concerned Authorities,casing pipe shall not be used. However at national highway road crossings pipeline shallbe provided with casing pipe, which shall extend min. 600 mm beyond Road ROW oneither side. The casing pipe shall be installed by trenchless method like ramming/boring/ jacking/ HDD /Micro Tunelling. Provision of casing at locations other thannational highways shall be decided based on type of road crossing and as perrequirements of local authorities if necessary. The casing pipe shall be 609.6 mm O.D.(24”), 6.5 mm WT, API 5 L Gr. X70, LSAW/ HSAW. The crossing angle shall be as closeto 90º as possible. Casing insulators and end seals shall be provided to ensure electricalisolation of carrier pipe and casing pipe.

8.7.4 Existing Pipeline Crossing

The specific requirements of Owner/operator of existing pipeline shall generally befollowed. The minimum clearance between the lines shall be 300 mm unless specifiedotherwise.

8.8 Valves

8.8.1 Application of various types of valves shall be as follows:

Valve type Typical application

Globe Throttling

Ball On/off, Isolation (on main line)

Plug On/off, Isolation (in the terminals)

Check Uni-directional flow

All pipeline valves shall comply with the requirements of API 6D/ relevant PMS. Ballvalves shall have primary metal seated design. In order to minimise potential leak sources, valves used in mainline shall be with butt-weld ends. Valve installed within the

terminal to isolate the mainline/ pipeline shall also be provided with butt welding ends.However terminal valves shall be flanged ends. Flanges may be used where frequentaccess or removal of equipment is required.

Wherever underground valves are provided, valves shall be provided with a stemextension in such a way that the centreline of the rim of the hand wheel on a horizontalshaft or centre of power actuator as approximately 1.0 m above the finished groundlevel.

Minimum size of any tapping from the underground pipeline shall be 2" NB and shall be


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provided with an isolation ball valve located at a minimum distance from the pipeline.

8.9 Branch Connections

All branch connections or side tap on the piggable lines wherever the branch linediameter is approx. 40% or more of the main line size, shall be provided with flow tees

to enable smooth passage of all types of pigs. Flow tees for this purpose shall have aninternal pipe housed in a tee.

8.10 Pipeline Bends

In order to accommodate changes in vertical and horizontal alignment in piggablesection of pipeline, elastic bends/cold field bends/hot formed long radius bends shall beused. Miter bends shall not be used for change in direction. Necessary design/calculation for arriving Minimum Elastic Bend Radius shall be worked out by Contractorand shall be ratified by GAIL. Minimum bend radius shall be as follows:

Minimum Bend Radius

Pipeline DetailsCold FieldBend Radius

Hot FormedLR BendRadius

18”, X-70, PSL-2(thk. 6.5/7.9/9.3mm)

R=27 D R=6D

12”, X-60, (thk.6.4/7.9/9.5 mm)

R=18 D R=6D

10”, X-60, (thk.6.4/ 7.8 mm)

R=18 D R=6D

8.11 Pig Signallers

8.11.1 Pig signallers shall be installed as a minimum at the following locations at eachLauncher/ Receiver:

- On Pig launcher cum receiver

- One location on the line

8.11.2 Pig signaller shall be bi-directional type with trigger mechanism, suitable formaintenance with pipeline under operating pressure.

8.12 Specifications All procurement of materials shall be as per Piping Material Specification (PMS) andspecifications indicated in PMS.

ANNEXURE - A LIST OF CODES AND STANDARDS

In addition to the codes/standards mentioned in para 3.0, the latest edition of the below listedequivalent codes and standards shall also be used for design of proposed pipeline. The listingincludes, but is not limited to, the following:


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1. Line Pipes

API 5L Specification for Line pipe

API 5L1 Recommended Practice for Railroad Transportationof Line pipe

API 5LWRecommended Practice for Transportation of Linepipe on Barges & Marine Vessels

2. Valves

API 6D Specification for pipeline valves (Steel Gate, Plug,Ball and Check Valves)

API 602 Compact Steel Gate Valves-Flanged, Threaded,Welding & Extended Body ends.

ASTM A694 Forgings, Carbon & Alloy steel for Pipe Flanges,Fittings, Valves & parts for High PressureTransmission Service.

MSS-SP-6 Finishes for Contact Faces of connecting EndFlanges of Ferrous Valves and Fittings.

MSS-SP-25 Standard Marking System for Valves, Fittings &Unions

BS 5351 Steel Ball Valves for the Petroleum, Petrochemicaland Allied Industries

3. Flanges & Fittings

MSS-SP-44 Steel Pipeline Flanges

ANSI B16.5 Pipe Flanges and Flanged Fittings

ANSI 16.20 Ring-joint Gaskets & Grooves for Steel PipeFlanges

ASTM A105 Forgings, Carbon Steel for Piping Components

ASTM A193 Carbon & Alloy Steel Bolts & Studs for HighTemperature Service

API 601 Standard for Metallic Gaskets for Raised-Face PipeFlanges & Flanged Connections

ANSI B16.9 Factory Made Wrought Steel Butt Welding Fittings

ANSI B16.11 Forged Fittings, Socket Welded & Threaded

ANSI B16.26 Butt Welding Ends ASTM A234 Piping Fittings of Wrought Carbon Steel and Alloy

Steel for Moderate and Elevated Temperatures

ASTM A694 Forgings, Carbon & Alloy Steel for Pipe Flanges,Fittings, Valves & Parts for High PressureTransmission Service.

MSS-SP-75 Specification for High Test Wrought Butt WeldingFittings


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MSS-SP-97 Integrally Reinforced Forced Branch Outley Fittings – Socket Welding, Threaded and Butt WeldingEnds.

PFI-ES-24 Pipe Bending Methods, Tolerances, Processes &Material Requirements

4. Testing & Welding

ANSI/AWS D1.1 Structural Steel Welding

API 1104Standard for Welding Pipelines and Related

Facilities

AWS A3.0 Welding Terms and Definitions

AWS A5.1 Welding Electrodes

AWS A5.5 Specification for Low Alloy Steel Covered ArcWelding Electrodes

ASTM E165 Liquid Dye Penetrant Inspection of Pipeline Welds

ASTM A370 Standard Methods and Definitions for MechanicalTesting of Steel Products.

ASTM E18 Standard Hardness Test for Metals

ASTM E23 Standard for Impact Test for Metals

ASTM E84 Standard Test Method for Micro-hardness of Metals

ASTM E92 Standard Test Method for Vickers Hardness ofMetallic Materials

ASTM E110 Standard Test Method Indentation Hardness forMetallic Materials by Portable Hardness Testers

ASTM E709 Standard Guides for Magnetic Particle Examination

MSS-SP-53 Quality Standard for Steel Casting & Forging-Magnetic Particle Method

MSS-SP-54 Quality Standard for Steel Casting & Forging-Radiographic Examination

MSS-SP-55 Quality Standard for Steel Castings & Forgings- Visual Method.

5. Surface Preparation, Painting and Coating

SIS-05-59 Pictorial Surface Preparation Standards for PaintingSteel Surfaces

SSPC-SP-01 Solvent Cleaning

SSPC-SP-03 Power Tool Cleaning


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SSPC-SP-05 Joint Surface Preparation Standard: White Metal BlastCleaning

SSPC-SP10 Structural Steel Painting Council – Joint Surface

NACE No.2 Preparation Standard - Near-White Metal Blast

CleaningSSPC-PA-02 Measurement of Dry Paint Thickness and Magnetic

Gauges

ASTM E12 Measurement of Pipeline Dry Film Coating Thickness

ASTM-G6 Abrasion Resistance of Pipeline Coating

ASTM G8 Cathodic Disbonding of Pipeline Coatings

NACE-RP-0274 High Voltage Electrical Inspection of Pipeline Coatings Prior toInstallation

IEC 454 – 2 Specification for Pressure-Sensitive Adhesive Tapes forElectrical Purposes

CSA Z245.20-02 External Fusion Bond Epoxy Coating for SteelPipe

6. Safety Systems

IP Model Code of Safe Practice in the Petroleum Industry parts 3, 6 and 9.


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PIPING MATERIAL SPECIFICATION

0001-01-05-02-001Page 1 of 68


SPUR LINES OF CHAINSA – JHAJJAR PIPELINE


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CONTENTS

SL NO. DESCRIPTION

1.0 SCOPE

2.0 CODES AND STANDARDS

3.0 MATERIAL SPECIFICATIONS

4.0 CLASS DESIGNATION CODES

5.0 PIPELINE

6.0 PIPING

7.0 FITTINGS

8.0 BENDS

9.0 FLANGES

10.0 GASKETS

11.0 BOLTING

12.0 THREAD SERALANT

13.0 VALVES

14.0 QUICK OPENING END CLOSURE

15.0 HYDROTESTING VENT AND DRAINS

16.0 PIPELINE SPECIALITY ITEMS

TABLE - 1 PIPE WALL THICKNESS DETAILS FOR MAINLINE SPUR LINE

TABLE - 2 PRESSURE/TEMP & OTHERS DESIGN CONDITIONS FOR VARIOUS PIPING CLASSES

ANNEXURE-

A,B,C,D,E,F,G,H,I

MATERIAL SPECIFICATIONS FOR PIPING CLASSES

ANNEXURE-1 LIST OF ATTACHMENTS


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1.0 SCOPE

1.1 It is propose to install a Natural gas pipe lines from Sultanpur – Neemrana, Bhiwadi / Chopanki

TOP to Bhiwadi, Hayatpur – Manesar and Hayatpur - Gurgaon in Haryana / Rajasthan states to

initially cater the demand of consumers in Dharuhera, Bhiwadi, Khushkhera, Neemrana,

Manesar, Khandsa and Gurgaon regions. The proposed Natural gas pipeline shall be of 457

mm (18”) OD, approximately 85.28 km long; 323.9 mm (12”) OD, approximately 9 km long and

273.1 mm (10”) OD, approximately 16.40 km.

The scope shall include piping and tap-off points at various locations of Chainsa–Jhajjar spur pipeline, that is for Bhiwadi, Gurgaon, Manesar, dispatch terminals, Sectionalising Valve stations,

Tap-off terminals, receiving terminals, Spur line and various CGS’s.

This document covers minimum requirements for various piping materials necessary for the design

of the piping/ pipeline and metering skid facilities coming under the project. This specification shall

be read in conjunction with various Codes and Standards of latest edition, as applicable.

2.0 CODES AND STANDARDS

2.1 Pipeline and pipeline terminal facilities envisaged as part of this project shall be designed and

engineered primarily in accordance with the provisions of the latest edition of the following codes:

(i) ASME B31.8 - Gas Transmissions and Distribution for pressure Piping

System

(ii) ASME B31.3 - Chemical Plant and Petroleum Refinery Piping

(iii) OISD Standard 141 - Design and Construction Requirements for Cross CountryHydrocarbon Pipelines.

2.2 All codes, standards and specifications referred herein shall be the latest edition of such documents.

2.3 For sake of brevity the initials of the society to which the codes are referred may be omitted in the

specifications, for example, B16.5 is a code referring to ASME; A106 is a code referring to ASTM.

2.4 In addition, GAIL specifications and standards for various piping and pipeline materials shall also be applicable.

3.0 MATERIAL SPECIFICATIONS

Individual piping class has been generally designed to cover a set of service operating within pressure-temperature consideration as per ASME B16.5/ B16.34 or part of it. Deviations of material

from class specifications may occur due to specific design conditions and/ or availability. These

deviations are permissible if they equal or better the individual class requirements and shall be

subjected to approval on case-to-case basis.

All materials shall conform to detailed specifications / data sheets for items as applicable.

4.0 CLASS DESIGNATION CODE

The piping class designation shall generally consist of three digits made up of a letter, number,letter e.g. A1A, A3A, A4A, B1A, D1A, E1A, etc. as follows:

First letter indicates ASME Class rating e.g.


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A – Class 150

B – Class 300

D – Class 600

E – Class 900

The middle number indicates differences in the specifications within the same class rating and

material.

The last letter indicates type of material. E.g. A – Carbon steel.

5.0 PIPELINE

5.1 Line pipe material grade and wall thickness details are indicated in Table-I.

6.0 PIPES

6.1 Carbon steel pipe shall be made by open hearth, electric furnace or basic oxygen process only. The

steel used shall be fully killed and made with fine grain structure. The grade and wall thickness of

various sizes of pipes shall be as per piping material specification for the applicable class.

6.2 Pipe dimensions shall be in accordance with ASME B 36.10 for carbon steel ASTM standard pipes;

& API 5L for carbon steel API 5L grade pipes.

6.3 All pipe threads shall conform to American Standard taper as per ASME B1.20.1 NPT, unless

otherwise specified.

6.4 For butt weld end, bevel shall be in accordance with API specification 5L or ASME B 16.25 asapplicable.

7.0 FITTINGS

7.1 Fully killed carbon steel shall be used in the manufacture of fittings. The fitting shall have carbonequivalent not exceeding 0.45, based on check analysis.

7.2 Threaded joints, if used, shall conform to American Standard taper as per ASME B1.20.1 NPT.

7.3 Dimensions of socket welded/ screwed fittings shall conform to ASME B 16.11. Swage shall be as per BS 3799.

7.4 Dimensions of steel butt welded fittings shall be as per ASME B 16.9.

7.5 Bore of socket welded fittings shall suit outside diameter (OD) of pipe and its thickness.

7.6 Butt welding ends shall conform to API specification 5L or ASME B 16.25 as applicable. In case ofdifference in thickness of matching ends, requirements of ASME B 31.8 shall apply.

7.7 Integrally reinforced forged branch fittings such as Sockolet, Weldolet etc. shall be as per MSS-SP-97. Fittings not covered in ASME B16.9 and MSS-SP-97 shall conform to manufacturer’s standard.

7.8 Fittings thickness tolerances shall match pipe thickness tolerance.

8.0 BENDS


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8.1 Unless otherwise specified for process piping, elbow of radius R = 1.5 D shall only be used.

Minimum Bend Radius D = Specified Outside Diameter

8.2 In order to accommodate changes in vertical and horizontal alignment in piggable section of pipeline, Elastic bends/ Cold field bends/ Hot formed long radius bends shall be used. Long Radius

Bend shall be used only when indicated in the drawing.

8.3 Miters shall not be used.

9.0 FLANGES

9.1 Pressure Temperature rating of flanges shall conform to B16.5 / MSS-SP44/ B16.47 Series A, asapplicable.

9.2 Dimensions of flanges shall be in accordance with B16.5/ MSS-5P44/ B16.47 Series A, as

applicable.

9.3 Neck of weld neck (WN) flanges shall suit pipe bore and thickness.

9.4 Bore of socket welded (SW) flanges shall suit pipe O.D. and its thickness.

9.5 Threads for screwed flanges, if used, shall conform to American Standard taper as per ASME B1.20.1 NPT.

9.6 Sizes for blind flanges shall be indicated by nominal pipe size.

9.7 Unless specified otherwise in Piping Material Specification the flange face finish shall be as perASME B16.5.

9.8 Butt welding ends of WN flanges shall conform to ASME B 16.25.

9.9 Spectacle blind/ spacer & blinds shall be in accordance with ASME B16.48/ manufacturer’sstandard.

9.10 Two jack screws, 1800 apart shall be provided in spectacle blind or spacer & blind assemblies as per

GAIL standards.

10.0 GASKETS

10.1 Spiral wound metallic gasket with compressed asbestos filler shall conform to ASME B16.20/ API

601. All spiral wound gaskets shall be provided with stainless steel centering ring.

10.2 Spiral wound gasket shall be self-aligning type.

11.0 BOLTING & THREADS

11.1 Nuts for stud bolts shall be American Standard Hexagon Heavy Series and double chamfered.

11.2 Dimension and tolerances for stud bolts and nuts shall be as per ASME B18.2.1 and 18.2.2 with fullthreading to ASME B 1.1 Class 2A thread for bolts and Class 2B for nuts. Diameter and length of

stud bolts shall be as per ASME B 16.5/ ASME B16.47 with full threading.

11.3 Threads for nuts shall be as per ASME B 1.1

Nuts for stud bolts dia ¼“ to 1” : UNC-2B


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Nuts for stud bolts dia 1⅛ %” to 3¼ : 8UN-2B

11.4 Threads for stud bolts shall be as per ASME B 1.1, as follows:

Stud bolts dia ¼“ to 1” : UNC-2A

Stud bolts dia 1⅛ %” to 3¼ : 8UN-2A

11.5 Threads for threaded pipe, fitting, flanges and valve shall be in accordance with B1.20.1 taper

threads, unless specified otherwise.

11.6 Heads of jack screws shall be heavy hexagonal type. Jack screw end shall be rounded. Stud bolts

shall be fully threaded with two hexagonal nuts.

12.0 THREAD SEALANT

12.1 Threaded joints shall be made with 1” wide PTFE jointing tape.

13.0 VALVES

13.1 Valve ends shall be as per valve data sheets for various piping class.

13.2 Sectionalizing valves, Block valves and other isolation valves installed on the main pipeline shall be ball valves with butt welding ends. All inline isolation valves on the mainline (pipeline) shall be

full bore valves to allow smooth passage of cleaning as well as intelligent pigs.

13.3 All buried valves shall be provided with stem extension, sealant, vent/drain and shall have buttwelded ends as per relevant specification/ data sheet.

13.4 Flange dimensions and face finish of flanged end valves shall conform to clause 9.0 of thisspecification.

13.5 Butt welding ends of Butt Welded valves shall conform to ASME B 16.25.

13.6 Face to face and end to end dimensions shall conform to applicable standards.

13.7 Valves shall conform to following standards unless specified otherwise in piping materialspecification for various piping class.

Flanged/ Socket Welded end valves (1½” and below)

Design STD. for Process lines

Gate Valves : API 602Globe Valves : BS 5352

Ball Valves : BS 5351

Plug Valves : BS 5353

Flanged/ Butt Welded end valves (2” and above)

Design STD. for Process Lines

Gate Valves : API 6DGlobe Valves : BS 1873

Check Valves : API 6D


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Ball Valves : API 6DPlug Valves : API 6D

13.8 All manual operated valves shall be provided with wrench I hand wheel or gear operator as

specified here in below.

13.8.1 Gate Valves

For ANSI class 150 and 300 : Hand wheel operated for size ≤12” NB.

Gear operated for size ≥14” NB.

For ANSI class 600 : Hand wheel operated for size ≤ 10” NB.

Gear operated for size ≥ 12” NB

13.8.2 Globe Valves

For ANSI class 150, 300, 600 and 900 - Hand Wheel operated for all size

13.8.3 Ball valves & Plug Valves

For all ANSI class : Wrench operated for size ≤ 4” NB.

Gear operated for size ≥

6” NB.

13.8.4 Gas Actuated Valves

Gas actuated valves shall be as per P & IDs. The actuator shall have provision for remote operation

as per P & IDs. All gas actuated valves shall have additional provision of hand wheel operation.

14.0 QUICK OPENING END CLOSURE

Quick opening end closure to be installed on scraper traps shall be designed in accordance with

Section VIII of ASME Boiler and Pressure Vessel Code and equipped with safety locking devicesin compliance with Section VIII, division 1. UG-35.2 of ASME Boiler and Pressure Vessel Code.

15.0 HYDROTESTING VENTS AND DRAINS

In terminal piping, high point vents and low point drains required for the purpose of hydrotestingshall be of size 0.75”. These vents & drains shall consist of gate valves with blind flange assembly.

16.0 PIPELINE SPECIATLITY ITEMS

Pipeline specialty items viz, scraper traps, Barred tees, insulating joints, LR bends etc. shall be as

per specifications attached elsewhere.


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TABLE -1

C l a s s -

I V 1 1 . 7

9 . 5

7 . 8

6 . 4

C l a s s

– I I I

9 . 3

7 . 9

6 . 4

6 . 4

C l a

s s

– I I

7 . 9 6 . 4 6 . 4 6 . 4 W

. T . ( m m )

C l a s s

– I

6 . 5

6 . 4

6 . 4

6 . 4

M E T H O D O F

M A N U F A C T U R E

L S A W , H S A W ,

S E A M L E S S , E W




M A T E R I A L

( A P I 5 L )

X – 7 0 , P S L - 2

X – 6 0 , P S L - 2

X – 6 0 , P S L - 2

X – 6 0 , P S L - 2

T P I P E

D I A

( I N C H )

1 8

1 2

1 0

1 0

S E C T I O N

L I N E P I P E

S u l t a n p u r – N i m

r a n a P i p e l i n e

B h i w a d i / C h o p a

n k i T O P – B h i w a d i S p u r L i n e

S p u r l i n e H a y a t p u r - M a n e s a r

S p u r L i n e H a y a

t p u r - G u r g a o n

S l . N o .

1 .

2 .

3 .

3 .


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TABLE – 2

Design ConditionClass Service

Pressure

(Kg/cm2 )

Temp.

(0 C)

C.A. (mm) Pipe

Material

Design

Code

D1A Hydrocarbon

Gas

99.93 65 1.5 API 5L X –

52/ ASTM

A 106 GR-

B / Gr.B

(Charpy) /

Gr. B PSL-

2 as

applicable

ASME B

31.8 /

OISD –

141

B1A Hydrocarbon

Gas

49.0 65 1.5 ASTM A

106 GR- B

/ Gr.B

(Charpy) /

Gr. B PSL-

2 as

applicable

ASME B

31.8 /

OISD –

141/ 226

A1A Hydrocarbon

Gas

19 65 1.5 ASTM A

106 GR- B

/ Gr.B

(Charpy) /

Gr. B PSL-

2 as

applicable

ASME B

31.8 /

OISD –

141 / 226

A3A Utilities 10.5 65 1.5 IS-1239

(BLACK)

ASME B

31.3

J2A Potable Water 10.5 65 0 IS-1239

(Galv)

ASME B

31.3

A93A Fire Water 18.9 65 1.5 IS-1239(Black)/

IS-3589

GR 410 as

applicable

ASME B31.3

CORROSION ALLOWANCE : Above mentioned corrosion allowance is only for station piping.

No corrosion allowance is considered in linepipe.


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ANNEXURE A


(A1A - CLASS 150#)


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PIPING CLASS : A1A, 150 #

BASE MATERIAL : CARBON STEEL

CORROSION ALLOWANCE : 1.5 MM

SPECIAL REQUIREMENT : NON IBR

TEMPERATURE (Deg. C) AND PRESSURE ( Kg/Sq. cm g ) RATINGS

SERVICE : NON CORROSIVE PROCESS - FLAMMABLE / NON FLAMMABLE, NON LETHAL-

HYDROCARBONS, AMMONIA, STEAM & GAS CONDENSATE (NON- IBR), UTILITIES (WATER, INST,

AIR, NITROGEN, CARBON DIOXIDE) AND LUBE OIL BEFORE THE FILTER.

NOTES

1. ALL VENTS AND DRAINS SHALL BE PROVIDED WITH GATE VALVE WITH BLIND FLANGE

ASSEMBLY UNLESS OTHERWISE INDICATED IN P&ID.

2. NDT OF WELDS SHALL BE AS FOLLOWS:

RADIOGRAPHY : ALL BUTT WELDS - 100%

MPI : SOCKET WELDS - 100%

3. PIPING DESIGN AS PER ASME B 31.8 & OISD 226.

4. CHARPY V-NOTCH TEST & HARDNESS TEST SHALL BE CONDUCTED FOR PIPE, FITTINGS AND

FLANGES.

5. ALL BRANCH CONNECTIONS INCLUDING VENT, DRAIN, PRESSURE AND TEMPERATURE

CONNECTION SHALL BE AS PER BRANCH CONNECTION TABLE GIVEN ON NEXT PAGE. THE

BRANCH DETAILS INDICATED IN APPLICABLE STANDARD SHALL BE IGNORED.

6. FOR VALVES, REFER RESPECTIVE VALVE DATA SHEETS. FOR HANDLE PROJECTION REFERSTD. DRG-S-05-01-007.

7. SPECIAL NOTES

ITEM SIZE DESCRIPTION

MAINTENANCE

JOINTSALL

FLANGED TO BE KEPT MINIMUM

1.5” & BELOW SW COUPLINGPIPE JOINTS

2.0” & ABOVE BUTT WELDED

DRAINS ON LINES ≤1.5” REFER GAIL STD.S-05-01-003

ON LINES ≥2.0” AS PER P&ID OR 0.75” REFER STD.S-05-01-004

ON LINES ≤1.5” REFER GAIL STD – S-05-01-003VENTS

ON LINES ≥2.0” AS PER P&ID OR 0.75” REFER STD.S-05-01-004

TEMP. CONN 1.5” FLANGED, INSTALLATION AS PER GAIL STD – S-05-01-005.

PRESS. CONN 0.75” SW NIPPLE WITH GATE VALVE TO SPEC AS PER STD.S-05-01-006


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72 72

70 70

68 68

66 66

64 6462 62

60 60

58 58

56 56

54 54

52 52

50 50

48 48

46 46

44 44

42 42

40 40

38 38

36 3634 34

32 32

30 30

28 28

26 26

24 24

22 22

20 20

18 18

16 16

14 14

12 12

10 T 108.0 T T 8.0

6.0 T T T 6.0

5.0 5.0

4.0 T T T T 4.0

3.5 3.5

3.0 T T T W W 3.0

2.5 2.5

2.0 T T T W W W 2.0

1.5 T T S S S S S 1.5

1.25 1.25

1.0 T T S S S S S S 1.0

0.75 T T T S S S S S S 0.75

0.5 T T T T S S S S S S 0.5

B R A N C H

P I P E

( S I Z E I N

I N C H E S )

0 . 5 0 0

0 . 7 5 0

1 . 0 0 0

1 . 2 5 0

1 . 5 0 0

2 . 0 0 0

2 . 5 0 0

3 . 0 0 0

3 . 5 0 0

4 . 0 0 0

5 . 0 0 0

6 . 0 0 0

8 . 0 0 0

1 0 . 0 0

B R A N C H P

I P E

( S I Z E I N

I N C H E S )

RUN PIPE (SIZES IN INCH) – A1A


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CODE DESCRIPTION

F SADDLE FUSED JT T TEES

H H.COUPLING W WELDOLETS

P PIPE TO PIPE I INSTRUMENT TEE

R REINFORCED X REFER NOTES

S SOCKOLETS L SWEEPOLET

Item Type

Lower

Size

(Inch)

Upper

Size

(Inch)

Sch./

Thk

Dim.

STDMaterial Description

Pipe Group (A1A)

PIPE 00.500 00.750 S160 B 36.10 ASTMA 106 GR.B PE, SEAMLESS

PIPE 01.000 01.500 XS B 36.10 ASTMA 106 GR.B PE, SEAMLESS

PIPE 02.000 02.000 XS B 36.10 ASTMA106 GR.B

(CHARPY)

BE, SEAMLESS

PIPE 03.000 03.000 STD B 36.10 ASTMA106 GR.B

(CHARPY)

BE, SEAMLESS


(CHARPY)

BE, SEAMLESS


(CHARPY)

BE, SEAMLESS

PIPE 8.000 14.000 6.4 API 5L API 5L GR.B PSL2 BE, SEAMLESS

PIPE 16.000 18.000 6.4 API 5L API 5L GR.B PSL2 BE, SAW

PIPE 20.000 20.000 7.1 API 5L API 5L GR.B PSL2 BE, SAW

NIPPLE 00.500 00.750 M B 36.10 ASTMA 106 GR.B PBE, SEAMLESS

NIPPLE 01.000 01.500 M B 36.10 ASTMA 106 GR.B PBE, SEAMLESS

Flange Group (A1A)

FLNG.WN 00.500 01.500 M B-16.5 ASTM A 105 150, RF/125AARH

FLNG.WN 02.000 24.000 M B-16.5 ASTM A 105 (CHARPY) 150, RF/125AARH

FLNG.BLIND 00.500 01.500 B-16.5 ASTM A 105 150, RF/125AARH

PLNG.BLIND 02.000 24.000 B-16.5 ASTM A105 (CHARPY} 150, RF/125AARH

FLNG.FIG8 00.500 01.500 B-16.48 ASTM A 105 150, RF/125AARH


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FLNG.FIG8 02.000 08.000 B-16.48 ASTM A105 (CHARPY) 150, RF/125AARH

SPCR &BLIND 10.000 24.000 B-16.48 ASTM A105 (CHARPY) 150, RF/125AARH

Fitting Group (A1A)

ELBOW.90 00.500 0..750 B-16.11 ASTM A 105 SW, 6000

ELBOW.90 01.000 1.500 B-16.11 ASTM A 105 SW, 3000

ELBOW.90 02.000 24.000 B-16.9 ASTM A 234,GR. WPB

(CHARPY)

BW, 1.5D

ELBOW.45 00.500 00.750 B-16.11 ASTM A 105 SW, 6000

ELBOW.45 01.000 01.500 B-16.11 ASTMA 105 SW, 3000

ELBOW.45 02.000 24.000 M B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW, 1.5D

T.EQUAL 00.500 00.750 B 16.11 ASTM A 105 SW, 6000

T.EQUAL 01.000 01.500 B 16.11 ASTM A 105 SW, 3000

T.EQUAL 02.000 24.000 M B-16.9 ASTM A234,GR.WPB

(CHARPY)

BW

T.RED 00.500 00.750 B-16.11 ASTM A 105 SW, 6000

T.RED 01.000 01.500 B-16.11 ASTMA 105 SW, 3000

T.RED 02.000 24.000 M, M B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

REDUC.CONC 02.000 24.000 M,M B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

REDUC.ECC 02.000 24.000 M,M B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

SWAGE.CONC 00.500 03.000 M,M BS-3799 ASTM A 105 (CHARPY) PBE

SWAGE.ECC 00.500 03.000 M,M BS-3799 ASTM A 105 (CHARPY) PBE

CAP 00.500 00.750 B-16.11 ASTMA 105 SCRF, 6000

CAP 01.000 01.500 B-16.11 ASTMA 105 SCRF, 3000

CAP 02.000 24.000 M B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

CPLNG.FULL 00.500 00.750 B-16.11 ASTM A 105 SW, 6000


CPLNG-HALF 00.500 00.750 B-16.11 ASTM A 105 SW, 6000

CPLNG.HALF 01.000 01.500 B-16.11 ASTM A 105 SW, 3000


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CPLNG.LH 00.500 00.750 B-16.11 ASTM A 105 SW, 6000

CPLNG.LH 01.000 01.500 B-16.11 ASTM A 105 SW,3000

CPLNG.RED 00.500 00.750 B-16.11 ASTM A 105 SW, 6000


O’let Group (A1A)

SOCKOLET 00.500 0.750 MSS-SP97

ASTM A 105 SW, 6000

SOCKOLET 01.000 01.500 MSS-

SP97

ASTM A 105 SW, 3000

WELDOLET 02.000 10.000 M,

XXS

MSS-

SP97

ASTMA 105 (CHARPY) BW

Valves Group (A1A)

VLV.GATE 00.500 01.500 API-602 BODY-ASTM A

105, TRIM-STELLITED,

STEM13%CR. STEEL

SW,800, 3000,B-

16.11

VLV.GLOBE 00.500 01.500 BS-5352 BODY-ASTM A

105,TRIM-STELLITED,STEM13%CR STEEL

SW,800, 3000,B-

16.11

VLV.CHECK 00.500 01.500 BS-5352 BODY-ASTMA

105,TRIM-STELLITED

SW,800, 3000, B-

16.11

Bolt Group (A1A)

BOLT.STUD 00.500 24.000 B18.2 BOLT: 193 GR.B7,NUT:

A194 GR. 2H

Gasket Group (A1A)

GASKET 00.500 24.000 B16.20-

ANSI B

16.5

SP,WND, SS316+CAF SPIRAL, 150


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ANNEXURE B


(A3A - CLASS 150#)


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PIPING CLASS : A3A, 150 #



SPECIAL REQUIREMENT : NON IBR

TEMPERATURE (Deg. C) AND PRESSURE ( Kg/Sq. cm g ) RATINGS

SERVICE : NON CORROSIVE UTILITIES (ABOVE GROUND) – COOLING WATER, INERT GAS,

INSTRUMENT AIR, CONDENSATE

NOTES

1. ALL VENTS AND DRAINS SHALL BE PROVIDED WITH GATE VALVE WITH BLIND FLANGE

ASSEMBLY UNLESS OTHERWISE INDICATED IN P&ID.

2. NDT REQUIREMENT AS PER GAIL STANDARD S-05-02-012

3. FOR VALVES REFER VALVE DATA SHEET

SPECIAL NOTES

ITEM SIZE DESCRIPTION

MAINTENANCE

JOINTSALL

FLANGED TO BE KEPT MINIMUM

1.5” & BELOW SW COUPLING 3000 #PIPE JOINTS

2.0” & ABOVE BUTT WELDED

DRAINS ON LINES ≤1.5” REFER GAIL STD.S-05-01-003

ON LINES ≥2.0” AS PER P&ID OR 0.75” S-05-01-004

ON LINES ≤1.5” REFER GAIL STD S-05-01-003VENTS

ON LINES ≥2.0” AS PER P&ID OR 0.75”, S-05-01-004

TEMP. CONN 1.5” FLANGED, INSTALLATION AS PER GAIL STD.

S-05-01-005

PRESS. CONN 0.75 SW NIPPLE WITH GATE VALVE TO SPEC AS PER STD.S-05-01-006


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72 72

70 70

68 68

66 66

64 64

62 62

60 60

58 58

56 5654 54

52 52

50 50

48 48

46 46

44 44

42 42

40 40

38 38

36 36

34 34

32 32

30 30

28 28

26 26

24 24

22 22

20 20

18 18

16 16

14 14

12 12

10 10

8.0 8.0

6.0 T 6.0

5.0 5.0

4.0 T P 4.03.5 3.5

3.0 T P P 3.0

2.5 2.5

2.0 T P P P 2.0

1.5 T T H H H 1.5

1.25 1.25

1.0 T T H H H H 1.0

0.75 T T T H H H H 0.75

0.5 T T T T H H H H 0.5

B R A N C H

P I P E

( S I Z E

I N

I N C H E S )

0 . 5 0 0

0 . 7 5 0

1 . 0 0 0

1 . 2 5 0

1 . 5 0 0

2 . 0 0 0

2 . 5 0 0

3 . 0 0 0

3 . 5 0 0

4 . 0 0 0

5 . 0 0 0

6 . 0 0 0

B R A N C H P

I P E

( S I Z E

I N

I N C H E S )

(A3A)


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CODE DESCRIPTION

F SADDLE FUSED JT T TEES

H H.COUPLING W WELDOLETS

P PIPE TO PIPE I INSTRUMENT TEE

R REINFORCED X REFER NOTES

S SOCKOLETS L SWEEPOLET

Item Type

Lower

Size

(Inch)

Upper

Size

(Inch)

Sch./

Thk

Dim.

STDMaterial Description

Pipe Group (A3A)

PIPE 00.500 1.50 HVY IS-1239-

I

IS-1239 (BLACK) PE, C. WELDED

PIPE 02.000 06.000 HVY IS-1239-

I


NIPPLE 00.500 01.50 HVY IS-1239-I


Flange Group (A3A)

FLNG.SW 00.500 01.500 M B-16.5 ASTM A 105 150,

RF/125AARH

FLNG.SO 02.000 06.000 B-16.5 ASTM A 105 (CHARPY) 150,

RF/125AARH

FLNG.BLIND 00.500 01.500 B-16.5 ASTM A 105 150,

RF/125AARH

FLNG.BLIND 2.00 6.00 B-16.5 ASTM A105 (CHARPY} 150,

RF/125AARH

FLNG.FIG8 00.500 01.500 B-16.48 ASTM A 105 150,

RF/125AARH

FLNG.FIG8 02.000 06.000 B-16.5 ASTM A105 (CHARPY) 150,

RF/125AARH

Fitting Group (A3A)

ELBOW.90 00.500 01.500 B-16.11 ASTM A 105 SW,3000

ELBOW.90 02.00 06.00 STD B-16.9 ASTM A 234 GR. WPB

(CHARPY)

BW, 1.5D

ELBOW.45 00.500 01.50 B-16.11 ASTM A 105 SW, 3000

ELBOW.45 02.000 06.000 STD B-16.9 ASTM A 234 GR. WPB

(CHARPY)

BW, 1.5D

T.EQUAL 00.500 01.50 B 16.11 ASTM A 105 SW, 3000


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T.EQUAL 02.00 06.00 STD B 16.11 ASTM A 234 GR. WPB

(CHARPY)

BW

T.RED 00.500 01.500 B-16.11 ASTM A 105 SW, 3000

T.RED 02.000 06.00 STD B-16.9 ASTM A 234 GR. WPB

(CHARPY)

BW

REDUC.CONC 02.000 06.000 STD,STD B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

REDUC.ECC 02.000 06.000 STD,STD B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW

SWAGE.CONC 00.500 03.000 STD,STD BS-3799 ASTM A 105 (CHARPY) PBE

SWAGE.ECC 00.500 03.000 STD,STD BS-3799 ASTM A 105 (CHARPY) PBE

CAP 00.500 01.50 B-16.11 ASTMA 105 SCRF, 3000

CAP 02.000 06.00 STD B-16.9 ASTM A234,GR. WPB

(CHARPY)

BW


CPLNG-HALF 00.500 01.50 B-16.11 ASTM A 105 SW, 3000

CPLNG.LH 00.500 01.50 B-16.11 ASTM A 105 SW, 3000


UNION 0.50 01.500 BS-3799 ASTM A 105 SW, 3000

Valves Group (A3A)


105, TRIM-STELLITED,

STEM13%CR. STEEL

SW,800, 3000,B-

16.11


216, WCB, TRIM-STELLITED, STEM13%CR.

STEEL

FLGD, 150, B

16.5,RF/125AARH


105,TRIM-STELLITED,

STEM13%CR STEEL

SW,800, 3000,B-

16.11


216, WCB, TRIM-

STELLITED, STEM13%CR.

STEEL

FLGD, 150, B

16.5,

RF/125AARH

VLV.CHECK 00.250 01.500 BS-5352 BODY-ASTMA

105,TRIM-STELLITED

SW,800, 3000, B-

16.11

VLV.CHECK 02.00 24.00 BS 1868 BODY-ASTM A 216, GR.

WCB, TRIM 13% CR.

SREEEL

FLGD, 150, B

16.5,

RF/125AARH


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VLV.BALL 00.500 16.00 BS-5351 BODY-ASTM A

105,A 216 GR. WCB TRIM-

BODY SEAT - RPTFE

FLGD, 150, , B

16.5,

RF/125AARH

VLV.BTRFLY 03.500 24.00 BS-5155 BODY-ASTM A 216 GR.,

WCB, TRIM- 13% CR.

STEEL

WAFL, 150, B-

16.5

WAF/125AARH

Bolt Group (A3A)

BOLT.STUD 00.500 6.000 B18.2 BOLT: A 307, GR. B, NUT:A 563 GR.B

Gasket Group (A3A)

GASKET 00.500 6.000 B16.21-ANSI B

16.5

IS-2712- GR.-W/3 RING, 150, 2 MM

TRAP/ STRAINER GROUP (A3A)

TRP 00.500 1.50 MANF’S

STD

B:A105, T:13%CR, S:SS304 FLGD,

THRMDNMC,

150, RF/125AARH

TRP 01.500 6.000 MANUF

STD

B:A285GR.C; INT: SS304 CONETYPE, 150,

FF/125 AARH

TRP 00.500 1.500 MANUF

STD

B:A105; INT: SS304 SW, Y-TYPE, 800

TRP 02.00 6.000 M MANUF

STD

B:A234GR. WPB; INT:

SS304

BW, T - TYPE


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ANNEXURE C


(B1A - CLASS 300#)


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PIPING CLASS : (B1A), 300 #



SPECIAL REQUIREME

GAIL Technical Spec.

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