Indian Oil Corporation Limited-IOCL has published Maintenance And Inspection Of 250Kl Floating Roof Crude Oil/Hsd Fuel Storage Tanks At Wrpl Surendranagar .. Submission Date for this Tender is 05-08-2019. Tanks and Cylinders Tenders in WRPL Surendranagar, Gujarat Gujarat. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
|---|---|---|---|---|---|
| 1 | 10 | Service | |||
| 2 | 20 | Preparatory Works: a) Locking of floating roof of the tank on support legs (b) Opening of roof manholes (c) Dismantling & storage of floating roof seal (d) Pumping of residual crude oil into sump tank using pump, flexible hoses and necessary fittings supplied by party (e) Cleaning of 250KL tank and sludge disposal through a combination of mechanical/manual mixing process including entry into the tank, removal and storage of left over oil/oily sludge which can't be pumped out further in containers supplied by owner and disposal of the same in sludge lagoon/pits including transportation as per the directions of Engineer-in-Charge by taking all safety precautions and degasification of the tank to make it 100% gas free.( f) Opening of shell manholes | 1 | LS | |
| 3 | 30 | Installation of flame proof eductor for ventillation for gas freeing the tank | 2 | EA | |
| 4 | 40 | Erection of steel scaffolding for working at heights in line with & all safety guidelines indicated in contract and instructions of Engineer-in-Charge/Site-Engineer. Workers working at height should wear full body harness. Supply of all tools,tackles, materials, consumables, labours and erection works shall be in the scope of contractor. | 225 | SQM | |
| 5 | 50 | Cutting of existing old bottom plates by oxy-acetylene gas with NRVs at both ends for gauging/cutting of plates and transportation of same to owners stock yard. Taking delivery of owner supplied 6 mm/8mm plates from owners stock yard,transporting to the work site, replacement of badly corroded plates at different locations of tank bottom by 6mm/8mm plates by welding anual/automatic/semi automatic),testing of lap/butt welds by soap solutions under 3 psi (21Kpa) vaccum for leak proofness including supply of labour,equipments etc., required to complete work in all respects as per the instructions of site engineer/ E-I-C. Oxy-acetylene gas cutter with NRVs at both ends is to be used for gauging/cutting the plate. | 50 | SQM | |
| 6 | 60 | Patch work in Tank Bottom:Taking delivery of Owner supplied 8 mm plates from the stock yard,transportation to the site, cutting to the required sizes, fabrication,laying and welding of patch on the tank bottom by lifting the shellalong with structurals and testing of the lap / butt welds by soap solution under 3 psi vacuum for leak proofness, DP test of root & capping of the radial butt weld joints in presence of Site Engineerincluding supply of labour, equipments etc. required to complete thework in all respects as per the instructions of Site Engineer /Engineer-in-Charge." | 50 | SQM | |
| 7 | 70 | Patch Work on Tank Shell:Taking delivery of Owner supplied 8 mm/ 6mm/5 mm plates from the stock yard,transportation to the site, cutting to the required sizes, fabrication,erection and welding of patch plate of various sizes at differentlocations on the tank shell and testing of the lap / butt welds by soapsolution under 3 psi vacuum for leak proofness including supply of labour, equipments etc. required to complete the work in all respects asper the instructions of Site Engineer / Engineer-in-Charge." | 5 | SQM | |
| 8 | 80 | Patch Work on Tank Roof: Taking delivery of Owner supplied 5 mm plates from the stock yard,transportation to the site, cutting to the required sizes, fabrication,erection and welding of patch plate of various sizes at differentlocations on the tank roof top/ bottom deck and testing of the lap /butt welds by soap solution under 3 psi vacuum for leak roofnessincluding supply of labour, equipments etc. required to complete thework in all respects as per the instructions of Site Engineer /Engineer-in-Charge." | 30 | SQM | |
| 9 | 90 | Water Draw off Sump: Taking delivery of Owner supplied 8 mm plates from the stock yard,transportation to the site, rolling, fabrication of water draw off sump,carrying out oil chalk test, dismantling of existing sump, fixing of new sump, compaction ramming of foundation including supply of labour,equipments etc. required to complete the work in all respects as per theinstructions of Site Engineer / Engineer-in-Charge. | 1 | EA | |
| 10 | 100 | Strengthening of weld joint:Strengthening of tank bottom plate lap joints by depositing additional weld beads (two runs with 3.15 mm/4.0 mm AWS7018) wherever required to restore the joints to the fillet size of 8 mm including supply of all labour, equipments , consumables, etc.,required to complete the job in all respects as per the instructions of Siteengineer/E-I-C. | 200 | M | |
| 11 | 110 | Restoring Work: Reinstallation of earlier dismantled roof manholes & shell manholes,Deblinding of inlet & outlet line, including supply of labour,consumable, tools & tackles to complete the job as per specifications & instructions of Site Engineer / Engineer-in-Charge. | 1 | LS | |
| 12 | 120 | Calibration and assistance in commissioning of the tank: Calibration of the tank by Survey method including all liaison work with the competent authority for approving the calibration charts, preparation of the charts and payment of fees to the competent authority for approval of the charts, submission of calibration chart, providing assistance in commissioning of the tank as per specifications and instructions of Site Engineer / EIC." | 1 | LS | |
| 13 | 130 | Composite | |||
| 14 | 140 | Supply and installation of 3" dia, 150# Class,F/F,Gate valve as per API600 .The scope include submission of hydrotesting report. | 5 | EA | |
| 15 | 150 | Replacement of Roof Drain Hose pipe: a) Dismantling of the existing roof drain flexible piping b) Supply and installation of new flexible 3" dia crude oil/HSD resistant rubberised hose pipe with SS 304, Class 150 end flanges of 8 M length approximately inplace of dismantled roof drain hose as per drawings, specifications & instructions of Site Engineer/ Engineer In Charge | 1 | EA | |
| 16 | 160 | Supply and Installation of Roof Seal: a) Supply Installation of neoprene seal of 2.5mm thick, two ply (each ply having minimum thickness of 1.0 mm), with single layer textile impregnated, oil resistant neoprenebber sheet of width 1700mm, Hexagonal foamblock including of supply of SS fasteners, SS weather protector, Al-channels etc.; Supply and Installation 1/2 " Pipe with required nut, bolts, washers, tools and tackles completing the work in all respects as per material and job specifications of the tender document and direction of Site Engineer / Engineer-in-Charge. | 25 | M | |
| 17 | 170 | Bituminous Carpet Rectification: Bituminous carpet Rectification and replacement of crude oil soaked sand under Tank Bottom Plates / Annular and Shell Joint Location. Bituminous carpet Rectification under damaged bitumen padding, supply of bitumen, coarse river sand & gravels as per requirement, mixing these components by heating including supply of all tools & tackles, spreading the bitumen mixtures over the bottom & compacting it to achive the desired strength & slope for an average thickness of 50mm & disposal ofdebris of damaged bitumen padding to the place designated by E-I-C. | 50 | EA | |
| 18 | 180 | Removal of damaged padding and strengthening of tank bottom BitumenPadding (in eroded condition) in outer shell to annular joint location approx size (0.050M x ONLY 0.100M.). Sealing with hot bitumen of requisite grade by providing concrete weir as pe rthe direction of EIC/SiteEngineer | 10 | SQM | |
| 19 | 190 | Desludging Works: Sweep blasting of tank internals:- Abrasive (Copper Slag blasting) blasting of the tank internals (bottom / shell / roof lower deck / leg supports etc) conforming to SSPC-SP 7/NACE No. 4. | 100 | SQM | |
| 20 | 200 | Primer Application for Roof Deck Internals: Surface preparation by hand cleaning to ST2 for top side of bottom deck, underside of top deck , structural supports of floating roof, Priming with Red Oxide Zinc Phosphate primer (30-35 micron) including supply of primer, equipments, tools & tackles, labour complete as per direction of Site Engineer / Engineer-in-Charge. | 150 | SQM | |
| 21 | 210 | Replacement of roof support leg: Supply of 4" dia sch. 80 pipe and fabrication and erection of roof support leg as per original design including supply of labour, equipment, consumables, tools, tackles etc.as per specifications and direction of Site Engineer/ EIC | 15 | M | |
| 22 | 220 | Painting of soil side of bottom & annular plates:- Surface preparation by hand tool cleaning conforming to ST-2 followed by supply and application of 1 coat of epoxy primer 50 microns and 1 coat of 125 microns of surface tolerant epoxy including the supply of paints, equipments, tools & tackles, labours, consumables etc. to complete the work as per direction of EIC/ Site Engineer. | 100 | SQM | |
| 23 | 230 | Surface preparation & Painting of Tank Internals (Tank Bottom, Internal Surface of shell upto 1.5 m from tank bottom, all pipings, roof supporting legs, water draw off sumps etc ): Cleaning the surface with hot water detergent, Cleaning the surface with high pressure water at around 10000PSI, preparation of surface with copper slag blasting to Sa 2.5 and profile of 40 to 70 microns, removal of used abrasives, final industrial vacuum cleaning, supply and application of one coat of epoxy primer to a DFT of minimum 50 microns followed by two coats of solvent free epoxy to a DFT of minimum 200 microns per coat ( gray and off-white shades for the 1st and 2nd coats respectively) or single coat of 400 microns by Airless spray, by brush for stripe coat, carrying out MIBK test, holiday test to detect any pinholes etc. The total DFT shall be minimum 450 microns, inclusive of labour,tools & tackles to complete the work in all respects as per specification and instrucutions of the Site Engineer /EIC." | 225 | SQM | |
| 24 | 240 | Tank Roof (upper deck and associated appurtenances) - Surface Preparation:- Surface preparation using water washing with with low TDS potable sweet water followed by copper slag blasting (conforming to SA 2.5 surface finish) and profile of 40 to 70µm inclusive of providing all required manpower, tools, tackles, consumables, non-consumables, equipments etc. to complete the work in all respects as per technical specifications and instructions of EIC/ Site Engineer. | 225 | SQM | |
| 25 | 250 | Tank Roof (upper deck and associated appurtenances) - Painting:- One coat of inorganic zinc silicate primer to a dry film thickness of minimum 60-75Microns by airless spray application followed by intermediate coat (1 coat x 250µm per coat or 2 coats x 125µm per coat of Surface tolerant epoxy) and top coat (50µm DFT of Aliphatic polyurethane) by airless spray application, sealer coat on primed surface by airless spray, stripe coat of surface tolerant epoxy on all weld joints/ projections by brush including supply of all requisite resources (paints, equipments, tools, tackles, manpower, consumables, non-consumables etc.) to complete the work in all respects as per specifications and directions of the EIC/ Site Engineer. The total DFT shall be minimum 400 microns. | 225 | SQM | |
| 26 | 260 | Tank Shell (shell external, all attachments, wind girders, shell internal 1.5m from top) - Surface Preparation:- Surface preparation using water washing with low TDS potable sweet water followed by copper slag blasting (conforming to SA 2.5 surface finish) and and profile of 40 to 70µm inclusive of all required water, abrasive copper slag, equipments, manpower, consumables, tools, tackles, consumables, non-consumables to complete the work in all respects as per specifications and instructions of the EIC/ Site Engineer. | 225 | SQM | |
| 27 | 270 | Shell (shell external, all attachments, wind girders, shell internal 1.5m from top) - Painting - One coat of inorganic zinc silicate primer to a dry film thickness of minimum 60-75Microns by airless spray application followed by intermediate coat (1 coat x 250µm per coat or 2 coats x 125µm per coat of Surface tolerant epoxy) and top coat (50µm DFT of Aliphatic polyurethane) by airless spray application, sealer coat on primed surface by airless spray, stripe coat of surface tolerant epoxy on all weld joints/ projections by brush including supply of all requisite resources (paints, equipments, tools, tackles, manpower, consumables, non-consumables etc.) to complete the work in all respects as per specifications and directions of the EIC/ Site Engineer. The total DFT shall be minimum 400 microns. | 225 | SQM | |
| 28 | 280 | Surface preparation of shell, stair way, piping, rolling ladder: Surface preparation of shell by handtool cleaning to St2 standard including removal oil, grease and other contaminants by solvent cleaning followed by removal of defective paint,loose mill scale, loose rust, loose or defective paint, weld flux andslag from metallic surfaces by hand chipping, scrapping, hand brushing,using chipping hammers, hand scrappers/chisels coir brushes, sand paperetc. and final cleaning with clean and dry compressed air or clean brushes/rags, providing all labour, tools and tackles, scaffolding forworking at heights and complete the work as per the specifications byE-I-C. The surface so prepared shall confirm to conforming to ST 2. | 225 | SQM | |
| 29 | 290 | Stairways, Rolling Ladder, Ladder Track, Gauging Platform - Painting:- 1 coats x 50µm per coat of epoxy primer + 1coat x 100µm per coat of surface tolerant epoxy by brush application followed by one coat of aliphatic polyurethane @ 50µm including supply and application of paints, strip coat on all weld joints projection and supply of all equipments, tools, tackles, manpower, consumables, non-consumables etc. as per specifications of paint manufacturer and directions of EIC/ Site Engineer. | 225 | SQM | |
| 30 | 300 | Hydrotesting: Hydrotesting, supply of water,making arrangement for taking water intank,attending leakages through flange joints if any, adjustment of floating roof supports to operational height etc., making arrangement &emptying out the water to a specified location as per direction of siteengineer | 1 | LS | |
| 31 | 310 | Painting the Wall/civil structure with 2 coats of base enemel paint and writing the matter using 2 coats of sythetic enamel paint of approved colour ,shade and quality etc. as directed by EIC/Site Engineer including | 225 | SQM | |
| 32 | 320 | Replacement of water draw off pipe: Supply of 4" dia sch. 80 pipe and fabrication and erection of water draw off pipe as per original design including supply of labour, equipment, consumables, tools, tackles etc. as per specifications and direction of Site Engineer/ EIC | 15 | M | |
| 33 | 330 | Supply | |||
| 34 | 340 | Supply of WNRF 1" x 150 # | 8 | EA | |
| 35 | 350 | Supply of WNRF 3" X 150# | 24 | EA |
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