Laying and Construction of Steel Pipeline Network and associated facilities including last

Amount

Mainline works

LAYING OF UNDERGROUND STEEL PIPELINE

Transportation of Line pipes including loading , unloading and stacking of 3-Layer PE coated line pipes issued by GGL as free issue materials from GGL designated store yard within Bengaluru GA limits but upto maximum 100 km from GGL stores/ yard to Contractor's stock yard/workshop/work-site.

Stringing of line pipes along pipeline trench /sand / soft soil bags including supply of bags and its filling materials.

Aligning, cutting and bevelling (as required) of pipes for welding and field adjustments including pipe fittings, welding, carrying out non-destructive testing of welds as required including 100% radiography by X - ray (Gamma Ray where X-ray is not possible at the discretion of GGL/MECON) and providing all requisite equipment, labour, supervision, materials, films, consumables, all facilities and personnel to process, develop, examine and interpret radiographs and other tests as required, carrying out repairs of weld joints found defective by Engineer-in-Charge, carrying out re-radiography and other tests as required on repaired joints.

Surveying of route and detours required at the time of execution including marking the same in pipeline alignment sheets, preparation of construction drawings showing survey details, and submit same to Owner for review / approval.

Clearing, fulfilling all the requirements of various statutory/ environment authorities to the entire satisfaction, grading of work area. Relocating of any obstruction within the Pipeline route alignment / Approved route viz. electrical lines/ poles, telephone line / poles, foreign pipeline, etc. in co-ordination with concerned authorities and obtain permissions from these authorities for pipeline execution.

Cutting of Asphalt/concrete/white topping at Road top For trenching: Top layer of asphalt/Concrete shall be cut open by employing mechanized saw/cutters for maintaining straight line for the open cut excavated trench all along the pipline route.

Trenching to required depth for maintaining a cover of miniumum 1.0 mtr to maximun 1.5 mtr as per instructions of Engineer-in charge from the top of the pipe by excavation in all types of soils including all type of rock etc. upto the depth 600 mm out of total depth of trench (Item of trenching in hard rock for rock depth 600 mm and more is covered separately under item no. 1.2). The item also includes trenching of required depth in different type of pavement / footpath / RCC , PCC & asphalt roads, RCC white topped roads etc. as required by using mechanical excavator or manually depending on the site condition and storing excavated soil, reusable materials at designated area as directed by Engineer in charge and to a width to accommodate the pipeline as per the relevant standard/ specification etc. Dewatering of trenches as required as per site condition is also included in the scope of item.

Carrying out Joint coating after surface preparation by Grit blasting, appliaction of primer etc.. as per the specifiactions. The scope also includes supply of coating sleeves, primer, grit, machines, manpower , compressor etc.. Carrying out repairs of coating defects of all pipes including defects/ damages occurring during transportation / handling.

The minimum pipe top cover of 1mtr shall be maintained. Incase, the top cover is less than cover of 1m cannot be achieved due to un avoidable site constraints, then such matters shall be informed to site In charge and the following protection for pipeline shall be done & recorded. For the pipeline cover from 600mm to 1 mtr, PCC 1:4:8 of Min. 150mm thickness along the width of the trench. No separate payment shall be made for PCC protection.

Carrying out installation of carrier line pipe at all minor crossing viz. road, carttrack, pathway, water bodies etc. at designated depth by open cut (except at crossing by HDD method).

Carrying out installation of carrier line pipe in the casing pipe at cased crossing (excluding installation of casing pipes which is covered separately).

In principal permission for laying of the pipeline from the concerned land owning authority ( i,e BBMP/ BDA/BWSSB/ KIADB/BMRCL/NHAI/RAILWAY etc.) shall be obtained by GGL and handed over to the contractor. However liasioning as required during obtaining in-principle permission & the liasioning during the pipeline laying execution with any authorities such as i.e. BBMP/ BDA/BWSSB/ KIADB/BMRCL/NHAI/RAILWAY local offcials, traffic police, police, BESCOM, BSNL,NHAI, Railways, BWSSB, BMRCL, NHAI, KIADB, RTO etc. and any other utility companies / agencies such as OFC operators etc are in the scope of the contractor. Repairing/replacement of all damaged utilities if any, and payment of any compensation (if claimed by owner/other utility agencies) is in scope of the contarctor. The laisoning during the execution for all the pipelines for the installed buried length shall be paid as per separate SOR item. 7.0

Coating of field weld joints, long radius bends (R=3D), elbows, buried fittings and valves etc. including supply of coating materials etc. (i.e. heat shrinkable sleeves and high build epoxy etc.) as per PJS & Technical Specification compatible with 3 layer PE coating material of the line pipe.

Installation of LR Bend (R = 3D) , as per specification wherever required depending on site condition. However, Supply of 3D bends shall be paid by separate item mentioned elsewhere in SOR.

Supply & Installation of warning tape ( 300 mm width and 0.5 mm thick ) on the entire length of the pipeline as per specification. Warning tape should have anti rodent properties.

Crossing the all-foreign pipeline / HT line / cable / any other utilities etc. with necessary concrete / HDPE sheet protection including coordination with all agencies and obtaining NOC.

Carrying out air cleaning, flushing, cleaning and hydrostatic testing of complete pipeline with required quantity of corrosion inhibitor (as per requirement) including pre-testing of designated sections complete as per specification and approved by Engineer–in–charge to specified pressures indicated elsewhere and duration after stabilization as per specification, providing all equipment, pumps, fittings, instruments, dead weight tester, pressure recorder, thermocouples etc., and services, supervision, labour, consumables, water including supply of corrosion inhibitor(as per requirement), air, etc. as required, locating of leaks and rectification of defect attributable to Contractor (rectification of defects in linepipe material not attributable to contractor shall be paid separately as per other item of schedule of rate), re-testing after rectification, dewatering after successful completion of hydrotesting of entire section and as approved by Engineer-in-Charge. Leak detection, its rectification and successfully re-hydrotesting shall be carried out by Contractor with a view that completion of all activity for successful hydrotesting is not inordinately extended, which will hamper the overall project schedule. Further, no extra payment claim shall be entertained for re-hydrotesting and leak detection if defects found attributable to Contractor.

All tieing-in, including the tie-in(s) of the pipeline with the adjacent sections of pipeline including cutting of test header, rebevelling as required, radiography and other NDT examination, joint coating as per specification.

Final clean-up & restoration of pipeline route or area disturbed by contractor to the orginal condition including obtaining NOC from respective land owner and statutory authorities during their construction activities for laying of pipeline works and disposal of debris and returning all surplus material to designated disposal areas / storage yard as and backfilling of trench and compaction of the same as per satisfaction of Owner and / Or as directed by Engineer–in–charge.

During the execution of the work, the construction area shall be barricaded to ensure the smooth execution of work and safety of the public/ working area. The item also includes trsansportation and placing the barricading at the site from owner's and contractor stores and return to Owner's store of the free issue barricading items. However , the supply of the Hard barricading shall be paid by separate item mentioned elsewhere.

Restoration of land, facilities and boundary wall etc. and associated facilities dismantled/damaged by the Contractor during construction.

Carrying out Sectionalising valve station including tap-off for distribution pipelines on underground steel grid main pipeline & branch pipeline, valves, barred tees, insulating joints, bends (R=3D/1.5D/1D), flanges & fittings, accessories etc. , tie-in of valve assembly including radiography of tie-in joints as per Schematic Layout Drawings of respective sections, Technical Specification and aboveground approach pipeline upto Insulating Joint for various stations. However, construction of valve pits and erection of valves on the burried pipeline in the valve pits for sectionalising valve stations and tap off shall be paid by separate item mentioned elsewhere in SOR.

Protective coating of 500 micron thick two component (applied with the help of minimum three coats) liquid epoxy including supply of materials duly approved by Owner for all piping valves, fittings, structural steels etc. for buried installation and inside the valve pit as approved by the Engineer-in-charge.

Carrying out all temporary, ancillary, auxiliary works and all incidental works required to make the pipeline ready for pre-commissioning.

Preparation of As-built drawings, pipe-books including collection of GPS co-ordinates.(Drawings /documents to be submitted as per SCC) All the works shall be executed in accordance with the provision of contract including carrying out all temporary/ ancillary/ auxiliary works required for the performance of the works and all other acts, deeds, matters and things necessary to make the pipeline ready for pre-commissioning/commissioning activities.

Note: i) For multiple MDPE pipe /Steel pipe by open cut method, refer point No. 9, Clause 88 of SCC.

Installation of API 5L Gr. X-52/65 , 6.4 mm Thk., 3 Layer PE externally Coated Line Pipes of approx. length 11.5m to 12.5m in all types of soils excluding hard rock by open trenching method

Pipeline Dia 8'' NB

Pipeline Dia 4'' NB

Same as item 1.1 above but by trenching in all types of rocks using mechanical means such as rock breakers / pneumatic chisel/drill /excavators (blasting prohibited) etc for rock cutting depth of 600 mm and more ( trenching of rock cutting depth below 600 mm is covered in item 1.1 above) to achieve minimum cover of 1 metre from top of pipe. Scope also includes disposal of rocky earth and providing soft soil / sand for bedding and all around steel pipeine of minimum 150 mm all around the pipe. However, the supply of the borrowed soft soil / sand as approved by EIC is shall be paid separately as per Item 6.1

Pipeline Dia 8'' NB, API 5L Gr. X-65/X52 , 6.4 mm Thk., 3 Layer PE externally Coated Line Pipes

Pipeline Dia 4'' NB, API 5L Gr. X-65/X52 , 6.4 mm Thk., 3 Layer PE externally Coated Line Pipes

Note: i) For MDPE laying by trenching in all types of rock, the payment will be made as per SOR item 5.1.1

LAYING BY HDD

Complete work laying the pipeline including road crossing/nallah /drain/culvert/foreign pipeline (between the limits as approved during execution depending on the site conditions and requirement of concerned authorities /agences and as approved by EIC) by HDD method including "Receiving and taking over" owner supplied three layer PE coated line pipes from Owner's designated place to issue/ dump site(s) and transportation to Contractor's stock yard/ work shop/ work site including all handling loading, unloading, aligning etc., manpower, equipment, other resources and aquiring the required land for storage, fabrication inclduing string preparation of carrier pipes, welding, welding repair, radiography, coating of field joints with special type Heat Shrink Sleeve and repair of pipeline coating with special repair patch materials as per specification, pre-hydro testing etc. of complete string made for crossing access for Contractor etc. and execution of, but not limited to, following works in accordance with specifications and instruction of Engineer-in-charge and as per all provision of Contract Document.

Pre-construction survey based on site visit, GPRS Survey as required to identify underground utilities & to avoid damage to other underground utilities, collection of data (if required) from concerned Authority including design and detail engineering and making of crossing drawings for getting their approval from concerned Authority/ Engineer-in-charge, getting work permit/ NOC for road crossing as well as utility crossings (if any) encountered during road crossing prior to start the execution of work.

Directional drilling to required depth from top of road/land including maintenance of drill hole in all types of strata including rocky terrain at all depth to accommodate the pipeline laying at all conditions encountered during rail/ road crossing/along the road by approved HDD methods for providing minimum cover specified in code/ specification or the actual depth as decided by concerned authority, whichever is more.

Cutting of Asphalt/concrete/White topping at Road top For trenching: Top layer of asphalt/Concrete shall be cut open by employing mechanized saw/cutters for maintaining straight line for excavting Entry and Exit pits.

Backfilling of the ditch/ trench including restoration of Pits as per existing road specification of BBMP/KIADB/KRDCL/NH/PWD/BIAL for asphalt road/white topping/Paver as applicable and cleanup of area and all other works including pigging, cleaning, final hydrotesting etc. alongwith mainline works (as mentioned in item no. 1.0 above) required as per specification, approved drawings, calculations, methods and to the satisfaction of Engineer-in-charge and/or as directed by concerned Authority. However, no seperate payment shall be made for HDD pit restoration.

Restoration of the White topping road cut portion for HDD PIT to the orginal condition. Also, refer Drg. No. MEC/23VT/01/11/D2/ST/LY/011A/R0/A3 The HDD pits shall be cut by using mechanised saw/cutters for mainataining the straight line for excavation of Entry and exit pits. The restoration to be carried out by filling the bottom layer with with stone dust / Quarry dust watering & compaction followed by 200mm thk GSB & 250 mm thk WMM with top bituminous layers comprising of primer coat, tack coat, 50mm thk DBM & Proving and laying White topping as per IRC SP76-2015 over Bituminous surface with unrenforced M-40 Grade pavement quality concrete ( PQC) using polymeric synthetic fibre as per ASTM ( 1116) such as polyester / polyethylene/ polypropylene at 1: 20 kg/ cum. Restoration also includes disposal of surplus soil / debris with all lift & leads and the existing White topping shall be cut open by employing mechanised saw/ cutters for maintaining staright line. After completion of White topping , groove cutting to a depth of 1/3 of the slab depth and width 3.5mm and same to be filled with unreinforced M40 grade pavement quality concrete using 43 grade OPC @ 420kg/cum coarse aggregate, fine aggregate and admixtures.

Restoration of HDD Pits on Asphalt road shall be carried out . Refer drg. No. MEC/23RT/01/11/D2/ST/LY/211A/R0/A3

Incase of hard rock contractor has to establish through bore log soil investigation data for carrying out the HDD with diamond bit

Details of HDD installation

Installation of Carrier pipe API 5L Gr. X-65/X52 , 6.4 mm Thk., 3 Layer PE externally Coated Line Pipes by HDD: in all type of soil excluding Hard Rock (Without casing).

Carrier pipe by HDD: 8'' NB, API 5L Gr. X-65/X52 , 6.4 mm Thk., 3 Layer PECoated Line Pipe.

Carrier pipe by HDD: 4'' NB, API 5L Gr. X-65/X52 , 6.4 mm Thk., 3 Layer PECoated Line Pipe.

Installation of Carrier pipe by HDD : IN HARD ROCK AREA USING DIAMOND CUTTER (without casing) with drilling in hard rock length at the rate of not more than 4.5 m per hour and carrying out soil investigation and lab analysis at a maximum span of 25 metres for establishing the hard rock HDD length to be paid under this item. Note: Refer Point No. 8, Clause 88 of SCC.

Carrier pipe by HDD: 8" NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line pipe without casing pipe.

Carrier pipe by HDD: 4" NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line pipe without casing pipe.

Installation of Carrier pipe with Casing by HDD : in all type of soil excluding Hard Rock (With casing).

Installation of Carrier pipe by HDD: 8" NB, 6.4 mm thk API 5L X-65/ X52 3LPE Coated Line pipe with 14'' NB Casing pipe as per specifications including supply of insulators,vent , end seal ,drain lines etc. as per the Specifications, drawings & Intrsuctions of Enginner In-charge. However, Supply of casing Pipe shall be paid separately.

Installation of Carrier pipe by HDD: 4" NB, 6.4 mm thk API 5L X-65/ X52 3LPE Coated Line pipe with 10'' NB Casing pipe as per specifications including supply of insulators,vent , end seal ,drain lines etc. as per the Specifications, drawings & Intrsuctions of Enginner In-charge. However, Supply of casing Pipe shall be paid separately.

Supply of Casing Pipe

Complete work of supply of carbon steel pipes on confirmation from MECON/ GGL required for crossing, including all taxes, duties, transportation and inspection charges but not limited to, the following items in accordance with relevant specifications indicated in scope of work indicated in SCC, drawings, specification and instructions of Engineer-in-charge and as per all provisions of the CONTRACT DOCUMENT.And also Handling including lifting, transportation from Contractor Stores to CONTRACTOR's workshop for fabrication and/ or to work site.

Supply of Bare Casing Pipe - size 14" (355 mm) OD, 5 mm wall thk.or std WT of material API 5L Gr. B / IS : 3589 or equivalent ERW Pipe (for 8" NB pipeline) and should be painted externally & internally as per specifications and Statutory Authority Technical requirement.

Supply of Bare Casing Pipe - size 10" , 5 mm wall thk.or std WT of material API 5L Gr. B / IS : 3589 or equivalent ERW Pipe (for 4" NB pipeline) and should be painted externally & internally as per specifications and Statutory Authority Technical requirement.

Pipe top cover more than 1.5 m in case of crossing of utilities/ drain/ culverts, as per the instructions of land owning authorities/ engineer-in charge etc. through open cut for the following pipe sizes (including restoration of the damaged area to its original condition and satisfaction of the Engineer-in-charge / concerned authorities) In Normal Surface / Unprepared surface (Katcha Surface)/In a built-up surface / Hard surface of any type including metal, concrete, bituminous, tiled, brick lined soft rock which is breakable in pieces manually (without use of pneumatic machine) etc. All tiles/ slabs/ curb stones etc. removed during excavation shall be placed properly. The other activities are as per SOR 1.1/1.2.

Pipe top cover more than 1.5 mtr (for 8" NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line)

Pipe top cover more than 1.5 mtr (for 4'' NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line)

Restoration of asphalted roads / concrete roads / pavements / foot paths

Restoration of Asphalt road :

Restoration of bitumen Asphalt road after laying of Pipe lines as per the drawing no. MEC/23RT/01/11/D2/ST/LY/0211/R00/A3 , specifications and instruction of Engineer-In-Charge. Restoration of roads shall be done as per requirement of BBMP/BDA/NH/KIADB etc. and to get NOC from the concerned authorities. Restoration of the asphalt road cut portion for pipeline trench width shall be carried out by filling the bottom layer with with stone dust / Quarry dust watering & compaction followed by 200mm thk GSB & 250 mm thk WMM with top bituminous layers comprising of primer coat, tack coat, 50mm thk DBM & 40 mm thk BC matching with the existing road top level.This item also includes disposal of surplus soil / debris with all lift & leads, cutting of Top layer of asphalt road by mechanized saw/cutters for maintaining straight line. For asphalt road cutting by mechanized saw/cutters, the payment will be made separately as per SOR Item no. 4.1.2

Cutting of asphalt road edges in straight line by using mechanized saw/cutters including cost of cutting machine, cost of blade , conveyance of all meterials etc. Note: RM is for one side of the stretch of asphalt Road.

Restroration of the all kind of pathway by using excavated material such as tiles/pavers/granite/red stone etc by providing PCC 1:4:8 of 50mm thickness below after compaction of the filled soil, fixing the Tiles/Paver/Granite etc and matching it to the existing surface. Item includes providing of extra finished material if required.such as Tiles/Paver/Granite etc matching to original pathways.

Reinforced Cement Concrete road/ pavement: Restroration of Reinforced concrete road and pavements shall be done by providing PCC 1:4:8 of 75 mm thick and RCC 1:2:4 of 100 mm thickness and providing minimum 8mm dia reinforcement steel at 200mm c/c or matching to the orginal condition of RCC/Pavement and restoration specification of authorities. The cost of reinforcement, Shuttering, compacting, the base surface etc. are in the scope of this item. Note: This item also includes for the restoration on white topping roads for pipeline laying through open cut method.

PIPELINE LAYING / INSTALLATION OF MDPE PIPES

Thorugh Open trenching method (IN STEEL PIPE LINE TRENCH)

Trenching to all depths by excavation in all types of soils except hard rock and different type of pavement / footpath / roads etc. including rock breaking, chiselling or otherwise cutting etc. as required and storing excavated soil, reusable materials at designated area as directed by Engineer in charge and to a width ( steel pipe line to MDPE clearance shall be minimum 150 mm) to accommodate the pipelines , MDPE Pipe (125 to 90mm PE 100 Pipe) adjacent to each other with 150 mm clearance except for the location of crossover points of MDPE over steel pipeline for change of sides due to site condition and MDPE pipe flexibility as per the relevant standard/ specification etc. [The minimum of the top of pipeline shall be miniumum 1.0 mtr to maximun 1.5 mtr measured from top of pipeline coating to the top of undisturbed surface of the soil or top of MDPE pipeline wherever crossing the steel pipeline as per SCC/ relevant code, whichever is higher]. Dewater of trenches if required as per site condition. The excavation in all types of soils including all type of rock etc. upto the depth 600 mm out of total depth of trench covered in this item.The trenching in hard rock for rock depth 600 mm and more is covered separately under item no. 5.3. Laying of steel pipe line will be paid separately as per SOR item no.1.1/1.2.

Loading, storing, unloading and laying of PE100 SDR11 line pipes of size 125 to 90 mm steel pipe line trench including ,proper stacking, identification,and supply of accessories of all sizes & thickness like PE Bends, Couplers, Endcaps, Tee, Reducer, CS to PE Fittings (transition fittings), Saddle Tapping, GI sleeves etc.. Handling, Stringing/ uncoiling,aligning of the PE line pipe on the pipeline Right-of-Use/route , laying/ installation of PE line pipe alongwith required accessories as mentioned above as per specification wherever required depending on site condition including execution of all works; additional lands required for contractor's storage , fabrication, access for construction;procurement and supply of all materials , consumables,equipments, labour and other inputs. In case of free issue items,the scope also includes, receiving and loading from GAIL Gas designated store, transportation, unloading and stacking of free issue items at Contractor's store.

Carrying out all temporary, ancillary, auxiliary works required to make the PE pipeline ready for commissioning as per drawings.

Specifications, scope of work indicated in PJS and other provisions of Contract document and instructions of Engineer-in-charge, including but not limited to carrying out the following works:

Carrying out preliminary activities such as preperation of drawings wherever required for crossing etc.

Preparation and getting approval of schedules, execution procedures, drawings/ sketches/ wherever required, making trial pits to determine the underground utilities/ services etc., restoration of the abandoned trial pits to original condition.

Uncoiling/ stringing & aligning of PE pipes, clamping, jointing of the pipe ends/ fittings/ valves by qualified personnel using approved electro-fusion techniques as per specification.

Installation / lowering the pipeline in trench to required depth as per PJS, Technical Specification & drawings.

Electro-fusion jointing of valves wherever required and as directed by Engineer-in-charge.

Pneumatic testing, purging with nitrogen and commissioning as per specification and approved procedures providing all tools and tackles, nitrogen, instruments, manpower and other related accessories and as per the instructions of the Engineer-in-charge.

The item also includes Supply and installation of bricks (class designation of 3.5 of IS:1077) of 230 mm width over MDPE pipes for the entire length as per the construction drawing & direction of EIC.

The item also includes Supply & Installation of warning tape ( 300 mm width and 0.5 mm thick ) on the entire length of the pipeline as per specification. Warning tape should have anti rodent properties.

Any other activities not mentioned/ covered explicitly above, but otherwise required for satisfactory completion/ operation/ safety/ statutory/ maintenance of the works shall also be covered under the scope of work and has to be completed by the Contractor within specified schedule at no extra cost to GAIL Gas Ltd. All the work shall be executed in accordance with the provision of contract.

125 to 90 mm PE 100 Pipe

Laying of PE pipes by HDD Method

Survey of underground utilities with requisite equipment / manpower, GPRS Survey as required to identify underground utilities & to avoid damage to other underground utilities, submission of HDD profile drawings and design for approval, execution of the work as per standard procedure attached with proper capacity machine including excavation of pits and subsequent backfilling, compaction, jointing and insertion of PE pipe, testing & commissioning, submission of As-Built Graph etc. as per specifications and the instruction of Engineer-in-charge. If any additional temporaray space is required for poistioning of equipment for HDD adjacent to pipeline route, same needs to be arranged by the Bidder. Item also inlcudes liasioning with all local authorities i.e. BBMP/DA/BWSSB/KIADB/BMRCL/NHAI/RAILWAY local offcials, traffic police, police, BESCOM, BSNL. The scope include supply & installation of Couplers, etc., as required for completion of the job. Note:Bricks and Warning mat are not required to be laid above the pipe line.The item also includes HDD Pit restoration on Asphalt road / white topped road etc. as required as per specification, and to the satisfaction of Engineer-in-charge and/or as directed by concerned Authority.

125 to 90 mm PE 100 Pipe

Note: i) The payment for MDPE pipe laying by HDD is over and above the steel pipeline payment applicable under 2.1., 2.2 & 2.3 respectively

Trenching in Rock: Same as item 5.1 above, but by trenching in all types of rocks using mechanical means such as rock breakers / excavators (blasting prohibited) etc. for rock cutting depth of 600 mm and more ( trenching of rock cutting depth below 600 mm is covered in item 5.1 above) to achieve minimum cover of 1 metre from top of pipe. Scope also includes disposal of rocky earth and providing soft soil / sand for bedding and all around PE pipeine of minimum 150 mm thickness. However, the supply of the borrowed soft soil / sand as approved by EIC is shall be paid separately as per Item 6.1

125 to 90 mm PE 100 Pipe

Laying of 4" NB CS pipes by HDD method (for connecting PE lines)

Receiving and taking over" owner supplied pipes from from Owner's designated place to issue/ dump site(s) and transportation to Contractor's stock yard/ work shop/ work site including all handling loading, unloading, aligning etc., manpower, equipment, other resources and aquiring the required land for storage, fabrication inclduing string preparation of carrier pipes, welding, welding repair, radiography, coating of field joints with special type Heat Shrink Sleeve and repair of pipeline coating with special repair patch materials as per specification, pre-hydro testing etc.and execution of following works in accordance with specifications and instruction of Engineer-in-charge

Pre-construction survey based on site visit,GPRS Survey as required to identify underground utilities & to avoid damage to other underground utilities, collection of data (if required) from concerned Authority including design and detail engineering and making of crossing drawings for getting their approval from concerned Authority/ Engineer-in-charge, getting work permit/ NOC for road crossing as well as utility crossings (if any) encountered during road crossing prior to start the execution of work.

Directional drilling to required depth from top of road/land including maintenance of drill hole in all types of strata including rocky terrain at all depth to accommodate the pipeline laying at all conditions encountered during rail/ road crossing/along the road by approved HDD methods for providing minimum cover specified in code/ specification or the actual depth as decided by concerned authority, whichever is more.

Backfilling of the ditch/ trench including restoration of Pits as per existing road specification of BBMP/KIADB/KRDCL/NH/PWD/BIAL for asphalt road/white topping/Paver as applicable and cleanup of area and all other works including pigging, cleaning, final hydrotesting, HDD Pit restoration on Asphalt road / white topped road etc. as required as per specification, and to the satisfaction of Engineer-in-charge and/or as directed by concerned Authority. Refer item 2.0 for details of restoration.

Incase of hard rock contractor has to establish through bore log soil investigation data for carrying out the HDD with diamond bit. For Installation of Carrier pipe by HDD IN HARD ROCK AREA USING DIAMOND CUTTER (without casing) with drilling in hard rock length at the rate of not more than 4.5 m per hour and carrying out soil investigation and lab analysis at a maximum span of 25 metres for establishing the hard rock HDD length to be paid under this item. Refer Point No. 8, Clause 88 of SCC.

The item also includes post -hydrotesting of the pipeline, supply and installation of PE to CS Transition fittings as required, bonding with TLP etc. as per instructions of Engineer in-charge. The Bonding with TLP will be paid separately as per respective TCP item. Note: 1) CS pipes & MDPE pipes are free issue materials to the contractor. 2) The Transition fittings shall ba painted/coated with suitable corrosion protection paint to avoid corrosion.

4" NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line pipe without casing pipe in hard rock area

4" NB, 6.4 mm thk API 5L Gr. X65/ X52 3LPE Coated Line pipe without casing pipe in normal soil

Supply and installation of PE Isolation Valves

Supply of isolation valves (as per data sheet) and installtion of valves in the valve pits as per specification & drawing and instructions of Engineer-in-charge. Payment of valve pits shall be paid separately as per SOR item 10.0. One set of valve handle/lever for each valve size shall be supplied by the respective successful bidder and is covered under the scope of this item. Note: The quantities w.r.t size may vary. For final quantity, prior approval shall be taken by EIC before order.

PE Valve 125 mm dia

PE Valve 90 mm dia

Additional work over and above item 1.2 above for supply of specified and approved quality of borrowed foreign soft graded soil / sand in place of available excavated material and / or other suitable soil as per applicable standards / specifications, including backfilling of excavated trench for specified length after laying and padding of pipeline, including transportation of such special backfill material over all distances, complete.

Liasioning with state authorities / owners along the Steel pipeline Route : In- principal permission for laying of the pipeline from the concerned land owning authority ( i,e BBMP/ BDA/BWSSB/ KIADB/BMRCL/RAILWAY/NHAI etc..) shall be obtained by GGL. However, the contractor scope includes liasioning as required during obtaining in-principle permission including re-routing as and when required (Demand Note & permission charges to land owning authories shall be paid by Gail Gas) and pipeline laying execution with any authorities such as BBMP/ BDA/BWSSB/ KIADB/BMRCL/RAILWAY/NHAI, Local officials, Traffic ploice, Police and any other utility companies / agencies such OFC operators etc . Repairing/replacement of all damaged utilities if any, and payment of any compensation (if claimed by owner/other utility agencies) is in scope of the contractor. Note: Payment shall be made on actual cumulative executed length of Steel pipeline only.

LONG RADIUS BENDS

Supply of Long Radius Bends (R = 3D) of bend degree 22.5 ° and lower, 23 °- 45° & 61° - 90° as per specification enclosed in Tender Document.

8" NB, 6.4 mm thk, MOC MSS-SP-75, Gr. WPHY-52/65

4" NB, 6.4 mm thk, MOC MSS-SP-75, Gr. WPHY-52/65

Note : 1. The quantities pertaining to degree shall be ordered as per the site requirement after obtaining the approval of EIC. 2. The cumulative quantities of LR Bends may vary, prior approval shall be taken by EIC before order.

VALVE ERECTION IN VALVE PITS FOR SECTIONALISING/ FUTURE TAP OFF

Handling including lifting and transportation from COMPANY's warehouse to CONTRACTOR'S Stores and/or work site and installation of all types of valves, including assembly of valve accessories, (if any) by bolting, threading or welding, supply and insertion of gaskets, nuts & bolts, nipples, etc & painting etc. supply of all consumables, manpower, equipment, etc. for completion of all works as per scope of work and as per drawings, specifications and instructions of Engineer-in-charge including servicing/ cleaning of valve wherever requried.

All civil works including excavation of pit, piping supports including all PCC and RCC works for pedestals with insert plates as required, clean up and restoration of site, filling and grading of area around valve station for avoiding any local flooding of area and as per specification and instructions of owner's representative.

Note: payment shall be made separtely for Construction of Valve pits as per item No. 10.0.

Notes; The item 9.3 also includes Installation of 2'' Blind flange along with the valve. The Blind flange shall be issued as free issue to the contractor.

RCC VALVE PIT

RCC Valve pit of internal Dimensions 1 m x1 m; Construction and handing over of RCC Valve pit with steel cover /RCC cover as directed by engineer In charge including all civil works i.e. excavation, piping supports for pedestals with insert plates as required, clean up and restoration of site, filling and grading of area around valve station for avoiding any local flooding of area and as per Drawings , Technical specification and direction of engineer-in-charge complete in all respects.

RCC Valve pit of internal Dimensions 1.2m x1.5m: Construction and handing over of RCC Valve pit with RCC cover including all civil works i.e. excavation, piping supports for pedestals with insert plates as required, clean up and restoration of site, filling and grading of area around valve station for avoiding any local flooding of area and as per Drawings , Technical specification and direction of engineer-in-charge complete in all respects.

Note: i) For the payment of changed size other than specified above due to site requirements, refer Point No. 12, Clause 88 of SCC.

PERMANENT MARKERS

Supply, fabrication and installation of all types of permanent markers along the route including all associated civil works such as excavation in all types of soil, construction in all types of soil, construction of pedestals and grouting with concrete, clearing, supply and application of approved colour and quality of primer and paint, stencil letter cutting for numbers, direction, change etc., restoration of area to original condition and performing all works as per drawing, specification and instruction of engineer-in-charge. Note: The item also envisages markers installation at tapoffs, at other locations as per the direction of EIC whereever required where pipeline already laid.

Pipeline RCC boundary / route marker as per Specification, drawing & instructions of Engineer In-charge.

Pipeline warning markers with post & foundations as per Specification, drawing & instructions of Engineer In-charge.

PRECOMMISSIONING AND ASSISTANCE IN COMMISSIONING OF PIPELINE SYSTEM

Purging with nitrogen of the complete pipeline network and the associated facilities being installed to the specified acceptance criteria, carrying out pre-commissioning works, providing assistance during the complete duration of commissioning operations for entire pipeline network system including supply of all equipment, man-power, consumables (Nitrogen required for purging by maintaining at a positive pressure of not less than 2 bar (g) in the pipeline) materials for all temporary works and performing all associated works, complete as per the relevant specifications, other provisions of Contract document and instructions of Engineer-in-charge.

Supply of Nitrogen

ASSISTANCE IN COMMISSIONING

Pipeline Dia 8'' NB

Pipeline Dia 4'' NB

Vaccum drying of the pipeline section :Carrying out the vaccum drying of the pipeline or sections of pipelines as required with all machine , materials, manpower to achieve the water dew point of -20 oC, and as per the instructions of Engineer-in-charge.

Pipeline Dia 8'' NB

Pipeline Dia 4'' NB

INSTALLATION OF UNDER GROUND INSULATION JOINT

Handling including lifting and transportation from COMPANY's warehouse to CONTRACTOR'S Stores and/or work site and installation of all insulation joints, including assembly by welding, painting etc. supply of all consumables, manpower, equipment, etc. for completion of all works as per scope of work and as per drawings, specifications and instructions of Engineer-in-charge. However, the items related to Bonding, TLP installation shall be paid seperatlely.

TEMPORARY CATHODIC PROTECTION SYSTEM

Survey, Design, detail engineering of the temporary Cathodic protection system using Mg (Min 3.0 Kg Each)/ Zn galvanic anodes to protect the external surface of 8” / 4'' NB dia , 3LPE Coated pipeline in the Geographical Area (GA) of Bengaluru against corrosion for a design life of minimum 2 year as per standard specification enclosed with the tender for temporary cathodic protection system, approved design document, data sheets & drawings. Scope shall also include but not limited to the following for completion of jobs:

a)Measurement of soil resistivity along the right of way of the main pipeline & take atleast one soil sample for one pipeline section for its chemical & microbial analysis along the pipeline route as per specification for corrosion survey .

b)Collection of additional data related to cathodic protection along the right of way of pipeline as per standard specifications.

c)Design, Detailed Engineering, Preparation of Design Document, Preparation of Test station schedule & Bill of Material as per the corrosion survey & Chemical analysis of Soil / Water samples for Temporary Cathodic Protection system.

d)Pipeline section from IJ/tapoff to IJ with varying lengths and for requisite No. of sections

Pipe line Dia 8"/4"

Supply, installation, Testing & Commissioning of Test lead Points (TLP) including weather proof (IP55)Test Lead Box (Big Size & Normal Size) as specified in specification with backlite strip, bolt terminals, 4” dia heavy duty pipe at top end to fit the test lead box and base plate welded at the bottom including MS bend for concrete Base, Bend, Cables, pipe to cable connection, Epoxy Encapsulation & Miscellaneous such as connectors, Excavation and backfilling trenches for cable laying & Pin Brazing etc., The work shall include supply & fixing of a non corrosive name plate containing the details like KM location, identification, TLP No, Direction of flow, connection scheme, type etc., on the side of Top box including the cost of all labour, materials, tools & tackles etc., cables are annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed or as per specification.The scope also includes all civil/ structural works related to TLP box including supply of bricks, cement & steel etc. required for completion of the system.

Type A for Potential Measurement with minimum two cables of 1Cx 06 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable for Potential measurement.

Type D for Cased Crossing with minimum four cables including two cables of 1Cx 06 Sq.mm for Potential measurement & two cables of 1Cx10 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable for anode connection.

Type E for foreign pipeline crossing with minimum four cables including two cables of 1Cx 06 Sq.mm armoured Potential measurement & two cables of 1Cx25 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable for galvanic anode connection.

Type H for HT Line Crossing with minimum four cables including 1 no of 1Cx06 Sq.mm for Potential measurement & 3 nos of 1Cx25 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable for galvanic anode & pipe connection.

Type F for insulating joints with minimum five cables including two no. of 1Cx06 Sq.mm for potential measurement,two no. of 1Cx10 Sq.mm for earth electrode connection and 1 no of 1c X25 sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable, for spark gap connection.

Supply, installation, testing & commissioning one set of polarization cell (Solid State) at all high tension electrical power transmission line/equipments /railway tractions (all 66 KV & above) crossing or running parallel to the pipeline for grounding purpose as per specification. The rating shall depend upon anticipated fault current & ground bed resistance at the location of installation. However, the rating of polarisation cell (solid state) shall not be less than 3.7 KA @ 30 cycle & number of 20 kg net weight zinc anode for each grounding shall not be less than two.The resistance to earth of grounding shall be limited to 5 ohms max.

Supply, installation, testing & commissioning of one set of spark gap arrestor 100 kA (Solid State) across each insulating joint provided at tap-off, SV & various consumer terminals as per scope of work / specification. Earthing of above ground catholically unprotected pipeline shall be with the earth electrode. Earthing of above ground catholically protected pipeline shall be with Zinc Grounding cell .

Supply & Installation of one set of grounding cell consists of pre-packed Zinc Anodes (40 years design life / Min. 20 Kg) with backfill materiasl & two cables of 1Cx25 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable (with sufficent length), encapsulation kit termination of Anode tail cable in the TLP etc.,for Insulation joints as per TS.

Supply & Installation of pre-packed Mg Anode (3 Kg) with one cable including 1Cx10 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed Unarmoured cable (with sufficent length) & encapsulation kit for cable connection termination of Anode tail cable in the TLP etc.,

Monitoring of the TCP system till commissioning of PCP system or handing over of the pipeline system to GAILGAS whichever is earlier.

Making cable to pipe connection by Thermit welding/Pin brazing (for charged pipeline) for 35, 25,10 ,6 sq.mm copper cable including excavation and exposing piping , recoating with epoxy, testing etc & supply of all required materials as per the approved drawings and Procedures.

Bonding TLP in between pipelines running parallel or crossing as required with minimum two cables of 1Cx25 Sq.mm annealed high conductivity, tinned, stranded copper conductor, XLPE insulated, 650/1100 V grade, PVC sheathed armoured cable for bonding the pipeline.

Electrical earthing pits comprising, 3.0 meter long 65 mm dia. 4.5 mm thick GI pipe electrode, charcoal, salt, GI earthing conductor for interconnecting the electrodes,6mm thick CI checked plate with CI frame for cover, CI earth pit marker, erection accessories confirming to IS- 3043 and as per technical specification.scope shall also include brick masonry chamber and all other civil works.The resistance of grounding shall be limited to 5 ohms max.

Above ground piping works for CNG/DRS/MRS stations, Civil works for DRS/MRS Stations and other common works

Supply of hard barricading

Supply, placement & handling hard barricading, as per the drawing no.MEC/23RT/01/31/D2/ST/LY/011/R0/A3 given in the tender document. The item includes supply of all materail for fabrication, welding, painting, lettrering etc. complete in all respect. On compeletion of work the barricading are to be returned back to GGL designated yard. Before start of fabrication works ,written approval from EIC to be taken.

Shutdown works: Assistance in valve operations, Gas Evacuation, Nitrogen inertisation of pipeline oror sections of pipelines as required including supply of Nitrogen before & after hook-up and subsequent gas charging. Notes; The item includes providing required tools, tackles, skilled and unskilled manpower and safety equipement for taking-up shut down works. However, the hook-up works shall be paid seperately as per item 4.0.

Pipe line of Size 8" Dia

Pipe line of Size 4" Dia

Hook-up works at tap-off point of existing Main pipeline

Fabrication including cutting of Mainline, edge preparation, inclusive of grinding the edges of pipes, fittings, etc. to match with the matching edges of uneven / different thickness wherever required, welding, attachment of all pipe fittings including supply of all consumables required for completion of job & hook up of the line with the existing main line.

NDT Testing/ Golden Tie -In with existing Pipeline

Item includes civil works like excavation, backfilling & restoraion

Completion of all such work in all respects as per scope of work and as per drawings, specifications and instructions of the COMPANY and keeping the system ready in all respects for further commissioning and start-up.

The item also includes Civil works such as Excavation in all types of Soil, Backfilling & Restoration after completion of Works.

Notes: U/G Valve Erection & Construction of valve chamber payment will be made separately as per respective SOR items .

Piping different grades & thickness

PLANT PIPING (ABOVEGROUND)

Transportation including loading, unloading & handling of all piping items ( pipes, fittings, flanges & valves are free issue itmes except studs & nuts (Hot dipped galvanized as per ASTM A 153 or Equivalent), gaskets ( metallic spiral wound 300#/150# rating) from Owner's and/ or Contractor's storage point to work site/ workshop as applicable, complete work of fabrication, erection, painting, testing of pipes, flanges and fittings, insulation joints and making ready for further Commissioning / Start-up of carbon steel piping of all sizes and ratings including supply of all consumables, equipment, manpower and other resources and execution of, but not limited to, the following works in accordance with relevant specifications & scope of work, drawings, specification and instructions of Engineer-in-charge and as per all provisions of the CONTRACT DOCUMENT.

Fabrication including cutting, edge preparation, inclusive of grinding the edges of pipes, fittings, flanges etc. to match with the matching edges of uneven/different thickness wherever required, welding, attachment of all pipe fittings like elbows, tees, reducers. Supply of nipples, couplings,caps, plugs, gasket, stud bolts, nuts, U Clamps etc. as required for completion of job.

Checking, cleaning, aligning, bending, cutting and bevelling (as required) of pipes for welding and field adjustments including pipe fittings, welding, carrying out non-destructive testing of welds as required including 100% radiography by Gamma-ray (for sizes 2" and above ) , and providing all requisite equipment, labour, supervision, materials, films, consumables, all facilities and personnel to process, develop, examine and interpret radiographs and other tests as required, carrying out repairs of weld joints found defective by Engineer-in-Charge, carrying out re-radiography and other tests as required on repaired joints.

Fixing/ Installation of weldolets, sockolets, flanges, vent and drain point connection etc., including providing stub-in connections, fabricated fittings and reinforcement pads etc., as required.

Erection including prior cleaning, lifting, supports, overhead on racks, skids and at all elevations including installation and carrying out connected activities for all types of valves including supply and fixing of gaskets, studs/ bolts, nuts wherever required for all sizes, levelling, aligning, joining of flanges, blind flanges, connecting with equipment, nozzles, strainers, tie-in with existing piping/facilities, hook up with MDPE along with Transition fitting etc. tapping for inline instruments like pressure gauges, thermowells, sample connection, etc.

Preparation of final bill of material based on piping GADs.

Preparation of isometric and fabrication drawings.

Carrying out Non-destructive testing as required

Surface preparation before application of primer by means of mechanical means manpower, machineries, tools & tackles to achieve required roughness as per specification and as per instruction of Engineer-in-charge.

Painting of entire system (including aboveground all pipes fittings, flanges and accessories) as per specification MEC/S/05/21/07 i.e., 1 coat of inorganic zinc silicate coating @65-75 micron DFT/coat + 2 coats of Chlorinated Rubber Zinc Phosphate Primer @40 micron DFT/coat + 2 coats of chlorinated rubber finish paint @ 40 micron DFT/coat, total 225 micron DFT including supply of approved paints and primers, application of primer and paints, indentification lettering/ numbering, colour coding, etc. as specified including rub down & touch up of shop primer or scrapping of shop primer wherever required by COMPANY and providing scafolding for all heights etc.

Cleaning and flushing by water/ compressed air, testing of the systems including hydrostatic, pneumatic and any other type of testing as specified, draining, drying by compressed air/other methods approved by COMPANY.

Precommissioning & making operational all piping system and equipments and provide all necessary assistance in term of supply of man-power, equipment, tools and tackles required amount of nitrogen for purging of entire terminal piping system including equipments etc. to the company during commissioning activities.

Clean-up and restoration of site, preparation of as built drawings, documents and project records; transportation of surplus free issue material to Owner's designated place(s); completing all works in all respects as per the AFC drawing, specifications, standards and other provisions of Contract and instruction of Engineer-in-charge.

Completion of all such work in all respects as per scope of work and as per drawings, specifications and instructions of the Engineer-In-Charge and keeping the system ready in all respects for further commissioning and start up.

Hook-up works including making provision for hooking up and carrying out shutdown activities at terminals if necessary.

Complete Carbon Steel Piping Work with painting including all fittings, Flanges and supply of all required gaskets, studs bolts & nuts etc. as described above as per Inch-dia. Notes : 1) The erection of Valves of size 2 " & above shall be paid through Item No.7 .1 & 7.2. 2) The piping fabrication , erection, testing and painting of the items of size below 2" i.e valves, Couplings, sockolet, weldolet, nipples, fastener & gasket, reducers, flanges,tee, elbow, sockets, flanges etc. as per A106 Gr.B, ASTMA 105 etc. are included under erection rate of the aforesaid respective items under sl no. 5.2 . No separate payment shall be made for erection of of these items.

CS Pipes API 5L, Gr.B, Fittings, Flanges (Incl. Elbows, Tee's, Reducers, Weldolets, Welded Flanges, TF and Insulation Joints (above ground) - BW, Sch.80/Sch.40/6.4 mm

CS piping of 1/2" & 1 "

Note: A) All butt welded fittings end shall generally match with connecting pipe wall thickness however in case of misalignment Contractor shall have to do end preparation without any extra cost.

B) All coupling, nipples etc. as required shall be supplied by contractor but no separate payments shall be made as it is covered under erection rate.

C) For joining of BW valves with pipe/fitting, the Welding of valve with fitting shall be paid under the erection of valve.

ERECTION OF OF BLINDS

Complete work of fabrication and erection as defined in item 1.0 above of fittings and flanges , insulation joints including all taxes, duties, transportation and inspection charges but not limited to, the following items in accordance with relevant specifications indicated in clause of SCC & scope of work indicated in SCC, drawings, specification and instructions of Engineer-in-charge and as per all provisions of the CONTRACT DOCUMENT.

Handling including lifting, transportation from Contractor Stores to CONTRACTOR's workshop for fabrication and/ or to work site for field fabrication and erection for all piping items supplied by Contractor.

Blind Flanges - ASME B-16.5, A105 (Charpy), 125 AARH, RF

Blind Flanges - ASME B-16.5, A105 (Charpy), 125 AARH, RF, 300#/150#, 2"

Blind Flanges - ASME B-16.5, A105 (Charpy), 125 AARH, RF, 300#/150#, 4"

Blind Flanges - ASME B-16.5, A105 (Charpy), 125 AARH, RF, 300#/150#, 8"

Spectacle Blind (API 590, A105 (Charpy), 125 AARH, RF/FF)

Spectacle Blind , 125 AARH, RF,300#, 2 "

Spectacle Blind , 125 AARH, RF,300#/150#, 4 "

ERECTION OF VALVES

Handling including lifting and transportation from COMPANY's warehouse to CONTRACTOR'S Stores and/or work site and installation of all types of valves including assembly of valve accessories, (if any) by bolting, threading or welding, supply and insertion of gaskets, nuts & bolts, nipples, etc. at all elevations of pipe sleepers, supports or overhead on racks, equipments nozzle, skid & painting etc. supply of all consumables, manpower, equipment, etc. for completion of all works as per scope of work and as per drawings, specifications and instructions of Engineer-in-charge including servicing/ cleaning of valve wherever requried.

Swing check Valves :MOC: ASTM A216 Gr.WCB

API 6D , RF, 300#, 150# , 2"

API 6D , RF, 300#, 4"

Ball Valves : MOC: ASTM A216 Gr.WCB /A105, Design standard API 6D

Size 2", BW, 300#

Size 2", One side flanged other side BW, 300#

Size 2", Flanged, 300#

Size 4", BW, 300#

Size 4", One side flanged other side BW, 300#

Size 4", Flanged, 300#

Erection RPD meters with EVC, Restricted Orifice, strainer/ filter, flanged pipe spools etc. as per drawing, specification & instruction of EIC.

Erection of G-16/G-25/G-40/G-65/G-100 RPD meter with EVC & fastners, strainer/ filter, flanged pipe spools (if any) 300#/150#, 2''

Installation and Commissioning of MRS/DRS

Shifting of DRS / MRS along with all accessories from Company's stores at Bengaluru to the desired loaction with in Bengaluru GA having maximum 60 Km one side including Loading, Unloading, Transportston, and fixing by the fastners ( HILTI make) on foundation with suitable capacity Hydra / Crane. Placing the DRS/ MRS on Foundation including aligning with Inlet / Outlet piping. Erection of all accessoreis of DRS / MRS such as Solar panels, Venting pipe, Junction box etc. Providing required Manpower during commissioning of DRS / MRS along with tools, tackles

MRS/DRS Skids along with accessories such as solar panel, Venting Pipe, Junction box etc- MRS skids (connecting through MDPE network of various capacities)

MRS/DRS Skids: DRS of capacity ranging from 2500 SCMH to 10000 SCMH, MRS Skids (Connecting through Steel primary network)

Supply of Transition Fittings

PE to CS of size 125DN x 4 inch

PE to CS of size 63DN x 2 inch

Supply of GI sleeve of medium grade as per instruction of the Engineer-In-Charge

GI Sleeve - 4'' NB as per IS 1239

GI Sleeve - 8'' NB as per IS 1239 / 3589

Warning Plate Markers

Supply, fabrication and installation of WARNING PLATE as per the attached drg.no. MEC/23RT/01/31/T4/PE/LY/023/R0/A2 and specification. Item includes application of approved quality of primer and paint, lettering with stencil and fixing on walls with Dowel pins.

Supply of CS fittings

Supply of 8’’ WNRF, #300, MOC: ASTM A105, DIM STD.: ANSI B16.5

Supply of 8’’ 90 deg Elbow (R=1.5 D), BW ends, #300, MOC: ASTM A105, DIM STD.: ANSI B16.5

Civil and Strucrual works : Civil and strucutural works for Construction of MRS/DRS stations

SITE CLEARANCE

DEMOLITION OF R.C.C./BRICKS/STONE MASONARY

Site clearance by demolition of R.C.C./Brickwork/Stone masonry/ Stone soling, Flexible pavements (including steel bars) etc.,alongwith removing the debris and disposal of unserviceable material to any lead and staking of serviceable materials, handing over serviceable material to concerned department if required as per technical specifications and direction of Engineer-in-charge.

TREE CUTTING

Tree cutting (only of girth more than 30 cm shall be counted for payments) including royalties, disposal, taking approval from competent authorities etc. all complete, as per technical specifications and direction of Engineer-in-charge.

EARTH WORK IN EXCAVATION/ SITE GRADING AND BACKFILLING

Earth work in excavation,site grading and backfilling in all kinds of soil including soft rock in any plan dimension up to 3.0M depth including disposal of excavated surplus and unserviceable earth up to any lead in all conditions. Soil to be leveled and neatly dressed complete in all respect as per scope of work, detailed construction drawings, as per technical specifications and directions of the Engineer-in-charge.

EARTH WORK IN EXCAVATION/ SITE GRADING IN HARD ROCK

Earth work in excavation in hard rock by mechanical means for all type and size of foundations in any plan dimension up to required depth including disposal of excavated material up to any lead in all conditions, and disposal of surplus and unserviceable material. Surface to be leveled and neatly dressed complete in all respect as per scope of work, detailed construction drawings and directions of the Engineer-in-charge.

PLAIN CEMENT CONCRETE

Supplying and laying plain cement concrete with stone aggregate 20mm down grade (including shuttering if required) in all types of concrete works including levelling courses below foundations, columns, pedestals, pedestal bases, pipe supports,floors, chambers, cable trench, under floors and any other locations , at all levels and locations as per drawings, specifications and directions of the Engineer-in-charge.

REINFORCED CEMENT CONCRETE

Providing and laying RCC (reinforced cement concrete) of grade M-25 with 20mm and down grade crushed stone aggregate in all types of structures like Beams, foundations, walls, columns, pedestals, pedestal bases, pipe supports, sleepers, cable trench, RCC retaining wall foundation for boundary wall including construction joints, shuttering at all depths and levels complete as per drawings, specifications and directions of the Engineer-in-charge.

Sub structures

Super structures

REINFORCEMENT STEEL

Supplying and Fabricating and Fixing in position HYSD Steel Reinforcements/ TMT Grade Fe-415 conforming to IS1786-1985 at all levels (all deapth & hights) and positions including the Cost of transport, Straightening, Cutting, Bending, Cranking, Binding, Welding, Provision of necessary Chairs and Spacers, Preparation of bar bending schedule, getting the same approved by EIC etc., complete as per Drawings and Specifications and including Cost of binding wire, Labour etc., all complete in all respects as per scope of work, detailed construction drawings, technical specifications and direction of Engineer-in-charge. The chairs and spacer bars provided will not be Measured for payment.

CEMENT CONCRETE BLOCK WORK

Providing and laying cement blocks (solid blocks) masonry Grade M-7.5 with 200 mm thick blocks upto plinth level and super structure in cement mortar 1:4 (1 cement : 4 coarse sand ).

Providing and fixing chain link Fencing

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50mmx50 mmx3.1mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per Specifiaction, drawing & the direction of Engineer-In-charge. The cost of structural steel and PCC shall be paid separately.

Providing and fixing Fencing Gates

Supplying, fabricating & fixing fencing gates fabricated from pipes conforming to IS:1161 and plates conforming to IS:2062 & fixing of GI weldmesh made from 3mm GI wire @ 75 mm bothways to structural steel frame by means of welding/bolting, painting with enamel paint in approved shade including supply of all raw materials, bolts, electrodes, transportation etc complete as per enclosed sketch, technical specifications, drawings and directions of the Engineer-In-Charge.

2m Wide x 2.1m High

Steel structure Fabrication & Erection

Supply ,fabrication and erection of all types of pipes supports like clamps saddle,guide stops,cradles,turn buckles,anchors,T-post,stockade/trestle and pipe bridge for over head piping ,approach ladders and platform,crossover,cable tray supports,etc. including painting as per painting specification(Bolts,nuts,washer,U-clamps etc. shall be supplied by the contractor within the rates quoted.These items will not be measured and paid seperately).The work is to be completed in all respect as per drawings and techanical specification and direction of the Engineer-in-Charge.

INSTRUMENTATION WORKS

Supply & Installation of Pressure Gauges, Pressure Rating 300# Pressure Range 0 - 70 Kg/cm2

Electronic Earth Pit: Supply , Erection ,Testing , Commissioning of complete Electronic earthing system with necessary accessories like Copper plates (600x600x3.15), Cu strips, GI strips, Funnel with wire Mesh, GI pipe (3 mtr), GI/PVC conduit, bolts, nuts, concrete chamber with CI cover, coke/charcoal, salt & sand etc., with 6 mm thick chequered plate cover as per IS3043, technical write up, drawings, etc. as per drawing & direction of EIC.

SAC/HSN Code

Total Excluding GST

GST (CGST&SGST/UTGST or IGST) in percentage (%) on Total

AARGEE

KRITA ENGINEERING PVT LTD

Taurant Projects Ltd

santosh engineers