Indian Oil Corporation Limited Tender

Providing MS Tubular Ladder/scaffolding inside the 33 MT LPG Bullets suitable for cleaning of the inner surface and for suitably carrying out all statutory NDT Testing/Inspection and all the allied jobs as directed

Providing flameproof lighting arrangement inside the bullet for carrying out necessary inspection, cleaning and NDT Tests. Contractor to supply the flameproof light fittings, Junction boxes, required cables, exhaust fans for proper ventilation etc as directed at site. Only One bullet will be handed over for testing at a time. IOCL shall retain the lighting arrangement till completion of all the bullets and the same lighting arragements may used in the other bullets by turn.

Thorough cleaning of the inner surface of the 33 MT LPG Bullets with water jet with he helps of brooms, brush, wire brushes, scrappers followed by thorough mechanical or power cleaning by rotating wire brushes of inner surfaces to detailed rust, mill scale dust to exposed to expose the bare metal surfaces and surfaces preparation for NDT inspection thru thorough buffing of weld joints covering heat effected zone i.e 10 mm of parent metal on either side of butt wled joints and fillet weld joints of nozzles , weld area of support legs, area/points where temporary/permananet attachment such as cleats , bracket welds etc. and the rinsing with water jets. On completion of cleaning, all the muck/deposits/sludge to be removed from vessel may contain pyrophoric compounds and hence the content to be collected and kept wet in order to prevent auto ignition and then to be burried in safe designated areas as per Site instruction. A smaple of all sludge collected should be handed over to the IOCL Site Engineer. The contractor has to provide all equipments and consummables for carrying out the cleaning jobs

Dismantling and fixing back the liquid and vapour lines, Dismantling the blind flanges, pipe joints of Bullets and thorough cleaning of the joints, fixing new supplied gaskets, studs and nuts and fixing back all the connected line valves including excess flow check valves, safety valves after testing and other instruments like servo gaguge, HLA etc fitted to the vessel and complete all such jobs in all respectes to make the LPG bullets ready for commissioning fter completion of inspection and testing of LPG Storage vessels duly certified by CCOE approved parties.

Ultrasonic Thickness measurement of weld on shell/petals dished and plates of 33MT LPG Bullets asper SMPV rules and ASTM-A577-88 or equivalen code, mapping of each petal plate to cover the whole plate 6 to 7 readings to be taken between each consecutive weld seam(horizontal & LPG pipelines and nozzles & 25% on T-joints as per ASTM-A-578 or quivalent code

Wet Fluroscent Magnetic particle test (WFMPT) as per ASTM-E-709, ASME Sec V, Article 7 of circumferntial and longitudinal weld on shell and dished ends including heat affected zones from inside :100% and from outside: more than 10% weld joints of nozzles.

UFD (Ultra Flaw detection) to check any internal defects of storage vessels weld joints on a 100% T-joints from inside b) Middle circumferential seam, bottlom & crown weld internal 100% c) Nozzle weld-neck to shell, Intenal: 100% as per ASTM-E-577, Sec V Are 4,5,23 sec VIII Div 1 & 2 not less than 25% covering and as applicable codes and meeting all requirements of PESO

Dye Penetration test of nozzles and leg support pads and any other inaccessible areas as per ASTM E-165-80 & as per applicable code of 3X33 MT Bullets

Hardness testing to check hardness value of weld, parent metals and HAZ on selected spots on welds , HAZ and parent metal in each accessible area as per ASTM E-11 and meeting all requirement of PESO

Radiography test for weld joints as supporting test in case of defects observed if any in WFMPI as per ASTM-E-94 or applicable codes (12 inch exposure)

Hydrostatic test/stretch Test of 33 MT LPG Bullets as per design code of the LPG Bullet + at manufcturer recommended test pressure as per Rule 19 of SMPV (Unfired) Rules), 1981. After testing dewatering and purging with LPG vapour will also have to be done

Calibration of 33 MT bullets and submission of duly approved calibration certified

Painting : Surface Preparation: Clean to SSPC SP2 or as approved by location incharge (Hand Cleaning, Wire Brushing /other method) and painting as per specification.

Certification and documentation: Surveillance by TPUIA submission of inspection dossier (4 nos.) certification under Rule 19 by recognized Third party Inspection Agency (TPIA), Submission of isnpection Dossier sketches/drawings with Statutory Certification under rule 19 of SMPV(U) Rules, 2016 issued by a renowned CCE approved Competent Person

Supply of STUDS WITH 2 NUTS AND 2 WASHERS: Studs shall conform to ASTM A 194Gr2 H/ASTM A- 193 Gr.B-7 or equivalent Fully threaded, 2 nuts as per SA-194 Gr.2H and 2 washers as per IS: 2016-A and supply of METALLIC GASKETS: API-601, to suit to raised face flange confirming to ANSI-B-16.5 or equivalent, Winding SS 304.

Indane logo Writing in English, Hindi and other Writing of Capacity and other Details like license,Hydro test due, SRV test Due etc on surface of Above Ground Bullets