Volume-II of IV - GAIL

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10.0 GASKETS 10.1 Spiral wound metallic gaskets shall conform to B 16.20 and shall be provided with compressed asbestos filler. All spiral wound gaskets shall be provided with carbon steel centering ring. Gasket thickness shall be as indicated in piping material specification for the applicable piping class. 10.2 Non metallic compressed asbestos gaskets for flanged pipe joints shall conform to B16.21. Unless specified otherwise, asbestos material shall conform to IS 2712 Gr. O/1. Gasket thickness shall be as indicated in piping material specification for the applicable piping class. 11.0 BOLTING 11.1 Nuts for stud bolts shall be American Standard Hexagonal Heavy series and double chamfered. 11.2 Dimension and tolerances for stud bolts and nuts shall be as per ANSI B 18.2.1 and 18.2.2 with full threading to ANSI B 1.1 Class 2A thread for bolts and Class 2Bfor nuts. Diameter and length of stud bolts shall be as per ANSI B 16.5 with full threading. 11.3 Threads for nuts shall as per ANSI B 1.1, as follows: Nuts for stud dia ¼” to 1” : UNC-2B Nuts for stud bolts dia 1 1/8 ” to 3 ¼” : 8UN-2B 11.4 Threads for stud bolts shall be as per ANSI B 1.1, as follows. Studs bolts dia ¼” to 1” : UNC-2A Stud bolts dia 1 1/8” to 3 ¼” : 8UN-2A 11.5 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. \\Akjha\work contrac\standard TS for Pipe Line WC (Vol-II) MASTER FOLDER\21B piping material spec\Specification for Piping Materials-021B.doc Page 4 of 6
MAIN LINE PIPE MATERIAL Line Pipe Material and thickness shall be indicated in Mainline SOR. Piping Class AIA (150#) NATURAL GAS BIA (150#) NATURAL GAS DIA NATURAL (150#) GAS INDEX OF PIPING MATERIAL SPECIFICATIONS Service Design pressure Kg/ cm 2 12.0 THREAD SEALANT Design Temp. °c C .A. in mm Basic Material TABLE-1 TABLE-2 Design Code 19.0 65 1.5 API 5L ASME B 31.8 49 65 1.5 API 5L ASME B 31.8 92 65 1.5 API 5L ASME B 31.8 12.1 Threaded joints shall be made with 1” wide PTFE Jointing tape. 13.0 VALVES 13.1 All valves installed above ground within the terminal of sizes 2” and above shall have flanged ends. Valves of size less than 2” shall have socket welded ends except for ball valves. 13.2 Flange dimensions and face finish of flanged end valves shall confirm to clause 9.0 of this specification. 13.3 Butt welding ends of Butt Welded valves shall confirm to ANSI B 16.25. 13.4 Face to face and end to end dimensions shall confirm to applicable standards. 13.5 Buried valves on mainline shall be provided with stem extension, sealant, vent/drain & shall have butt welded ends. 13.6 Sectionalising Valves (Block valves) installed on the main pipeline shall have butt welded ends and shall be full bore to allow smooth passage of cleaning pigs as well as intelligent pigs. \\Akjha\work contrac\standard TS for Pipe Line WC (Vol-II) MASTER FOLDER\21B piping material spec\Specification for Piping Materials-021B.doc Page 5 of 6
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GAIL (India) Limited TENDER DOCUMEN
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D:\old data\FATEH\IDPL_Dholpur\SCC\
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MECON LIMITED REGD. OFF: RANCHI (BI
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MECON LIMITED REGD. OFF : RANCHI (B
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Pipe Size, Out Side Diamter- Inches
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SPECIFICATION FOR HYDROSTATIC TESTI
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0 C C; \ts\Tender-A,4.doc. TABLE -
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SPECIFICATION FOR MAJOR WATER CROSS
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SPECIFICATION FOR PIPING FABRICATIO
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Pipe Size, Outside diameter Inches
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CONTENTS Sl. Description Page No. N
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1.0 GENERAL 1.1 These technical spe
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completion and testing on system ar
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5.1.2 Mill scale, rust, rust scale
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5.2.3 Maual or hand tool cleaning M
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c. Ingredients shall be kept proper
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the bottom. This work shall be done
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S. NO. DESCRIPTION 1. MANUAL OR HAN
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S. NO. DESCRIPTION 3. BLAST CLEANIN
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6.0 PAINT MATERIALS Paint manufactu
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PAINT MATERIALS TABLE NO.: 6.2FINIS
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Notes: 1. Covering capacity and DFT
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TABLE 7.1: PRE-ERECTION/ PRE-FABRIC
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NOTE 2 : FOR EXTENAL SURFACE OF RCC
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TABLE 10.0: FIELD PAINT SYSTEM FOR
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TABLE 12.0 : FIELD PAINT SYSTEM FOR
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TABLE 14.0 : PAINTING UNDER INSULAT
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17.0 STORAGE 17.1 All paints and pa
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. Intersection points & change of d
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20.3 Method of Camouflaging 20.3.1
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it would be in the interest of the
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24.5 Tests required for evaluation
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S. No. MANUFACTURER NAME LIST OF RE
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S. No. MANUFACTURER NAME LIST OF RE
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S. NO. LIST OF RECOMMENDED MANUFACT
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SPECIFICATION FOR REPAIR OF PIPELIN
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MECON LIMITED DELHI PROCESS & PIPIN
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SPECIFICATION FOR DOCUMENTATION FOR
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Page 337 and 338: 2.3 Monthly • Priced variations
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Page 388: 13.7 Unless specified otherwise. Va
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Page 398 and 399: determination of surface profile -
Page 400 and 401: ) Peel Strength shall be as follows
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Page 404 and 405: 4.3 Application Procedure for Corro
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Page 408 and 409: SPECIFICATION FOR 3-LAYER POLYETHYL
Page 410 and 411: 1.0 SCOPE This specification covers
Page 412 and 413: y. CSA Z245.20-98 : External Fusion
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Page 416 and 417: 5.3.3 Properties of Coating System
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Page 420 and 421: 7.4.4 Chemical Pre-Treatment 7.4.4.
Page 422 and 423: specified temperature i.e. one at e
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Page 426 and 427: 8.6.4 After the de-ionised water wa
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10.10 Epoxy Layer Adhesive Test a.
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11.3 The CONTRACTOR shall load, unl
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• Damages caused to coating by ha
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14.6 The CONTRACTOR’s Quality sys
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Table - 1 Manufacturers Data on Coa
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MECON LIMITED Delhi PROCESS & PIPIN
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PROCESS & PIPING DESIGN SECTION MEC
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SPECIFICATION FOR PIPELINE PRE-COMM
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C O N T E N T S Clause No. Title Pa
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Above 250 & upto 500 - Deploy one q
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e. Fabricated steel structurals, pi
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4.0 DETAILS OF HSE MANAGEMENT SYSTE
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RELEVANT IS-CODES FOR PERSONNEL PRO
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2.0 MONTHLY CHECKLIST CUM COMPLIANC
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MONTHLY CHECKLIST CUM COMPLIANCE RE
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MONTHLY CHECKLIST CUM COMPLIANCE RE
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ANNEXURE-B Format-3 3.0 ACCIDENT RE
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5.0 MONTHLY Health, Safety & Enviro
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OBSERVATION OF QUALITY ASPECTS Job
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SPECIFICATION FOR CALIPER PIGGING S
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1.0 INTENT 2.0 OBJECTIVE SPECIFICAT
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6.0 GAUGE PIG RUN Contractor to car
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- Valves or any partially closed va
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geometry inspection to generate val
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PIPELINE DETAILS NOMINAL DIAMETER m
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CONTENTS Sl.No. Description Page No
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) SIS - 055900 : Pictorial surface
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Property Test Method Condition Requ
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35mm The sleeve shall be installed
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4.1 General a) The application proc
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4.3 Procedure a) The application pr
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5.2.3 All the coated joints shall b
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8.0 REPAIR OF PIPE COATING DEFECTS
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MECON LIMITED REGD. OFF RANCHI PROC
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C O N T E N T S Sl.No. Description
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e measured. Hence the depth of meas
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6.7 Graphical representation of exi
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GAIL (India) Limited TECHNICAL SPEC
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1.0 SCOPE Cathodic Protection Power
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limit feature shall be provided in
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e) Pipeline under protected f) Auto
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- Dimensional checking - Proper mou
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Volume-II of IV - GAIL

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