Indian Oil Corporation Limited Tender

PROVIDING FLAMEPROOF LIGHTING ARRANGEMENT inside the Storage vessel for carrying out necessary Inspection, Cleaning, NDT and other tests.Contractor to supply the flameproof light fittings, Exhaust Fan or Ventilator fans,junction boxes,required cables etc., as directed at site. Lighting arrangements shallhave to be kept at site till completion of the testing of all the MSVs.(2 x 600 MT Mounded bullets)

INTERNAL CLEANING:THOROUGH CLEANING OF INNER SURFACE OF STORAGE VESSEL with water jets and clearing the sludge/rust material followed by thorough cleaning of the inner surface to remove the scales, oil & dust by suitable means (wirebrush, buffing machine etc.) to expose the metal surface and thoroughbuffing of weld joints. Cleaning of minimum 100 mm on both side of eachweld joint including nozzle welds by thorough cleaning using rotarybrushes to expose bear metal(shining surface) with care to entire weldjoints of nozzles and weld area of support legs & all other weld joint of open area of vessel outer side. The contractor has to provide allequipments and consumables for carrying out the cleaning jobs. Localized grinding of the welds to be done if required as directed by InspectingAgency / IOC Site Engineer.(2 x 600 MT Mounded bullets)

Visual Examination :- 100% Visual Examination on internal and externalsurfaces for observation of any surface defects, weld defects,corrosion, pitting or otherwise physical/ material defects etc

ULTRASONIC THICKNESS MEASUREMENT on all Crown & Petal Plates, Dished endplates, LPG pipe lines and Nozzles as per ASTM-A-578, ASTM-A-435,ASTM-E-797 orother applicable codes and meeting all requirements of PESO as perinstruction of third party Inspecting Agency / IOC Site Engineer. (OneUT test {reading} per 6*6 square inch of the surface area is to be taken)(1EA = 1 Spot)

ULTRASONIC THICKNESS GAUGING (UTG) As per relevant code to be donearound and on each nozzle- neck at four quadrants, including LPGPipelines up-to 1st flange

100% UFD (ULTRASONIC FLAW DETECTION) to check any internal defects of weld Joints, a) 100 % "T" joints from inside b) Middle circumferentialseam, bottom, & Crown weld, Internal 100%, c) Nozzle weld # neck to shell, Internal: 100% as per ASTM E # 577, Sec V Art. 4,5,23, Sec VIIIDiv 1 & 2 not less than 25 % covering and as applicable codes andmeeting all requirements of PESO & OISD as per direction of third partyInspecting Agency / IOC Site Engineer.

WFMPI (WET FLUORESCENT MAGNETIC PARTICLE INSPECTION) of Weld Joints ofMounded Vessels including Nozzle Joints to check any surface /subsurface defects or linear type of indications over the welds coveringHAZ on 100 % Circumferential-Longitudinal weld joints from inside and onoutside portion exposed encompassing the nozzle welds etc and on weldjoints of all nozzles, manholes, RF pads to shell wherever applicable(externally exposed weld) as per ASTM- E-709 and meeting all requirements of PESO.Test to be done by using AC Yoke- magniflux tiede Y6 black light andwhite washable distemper as background and as per applicable code asinstructed by third party Inspecting Agency / IOC Site Engineer.

DYE-PENETRANT TEST to check any Surface defects over welds, covering HAZ(Heat Affected Zone) of all nozzles, manholes etc. for defects likeporosity, cracks etc as per ASTM E-165-80 and meeting all requirementsof PESO

HARDNESS TESTING to check hardness value of welds, parent metals and HAZon selected spots on welds, HAZ and parent metal in each accessible areaas per applicable codes and standard and meeting all requirements of PESO( Approximately 500 spots per vessel)

Radiography test for weld joints at selected locations as problem defect/flaws observed during other tests subject to a maximum of 10% of total weld length as per ASTM-E-94 applicable code . This is an OPTIONAL item and same is to be conducted where defect / flaws are observed.

TESTING & CALIBRATION OF RADAR , SERVO & OTHER GAUGES Checking of Gauges in the presence & supervision of OEM of Servo & Radar Gauge for Isolation , Checking , Re-commissioning, Recalibration etc for each vessels. All the charges for deploying of OEM is covered under this schedule of rate item & no additional payment shall be done for Lodging, Boarding etc for the OEM expert visit. The Contractor to arrange the visit in between inspection & final commissioning so as to compelte the job on time, any delay in arranging the competent person of OEM if results in delaying of commissioning activities shall attract delay delivery / price reduction clause. ( 2 Level gauges per each MSV)

Hydro-testing & Calibration of MSVs with water. Water drain post Degassing to be accompanied by Calibration and Water filling for Purging to be followed by Hydro-test & then purging to be done. Calibration to be certified by CPWD certified agency and under TPI supervision. The contractor has to make their own arrangements for flame proof motorized pressure testing equipment, which can be taken back by the contractor on completion of the entire work.

Replacement of EFCV in 6" Vapor Line of MSV 1 with New EFCV as per specification

Servicing of Valves in LPG Liquid & Vapor line along with all the spares (such as o ring, ptfe stem ring, graphite body seal, graphite stem gland, ptfe seat, etc.)

Fixing back all the liquid and vapour lines after servicing the valves, EFCVs and fixing all removed fittings like HLA, SRV, Pressure/Temp/servo gauges, manhole covers etc., including supply and fixing of spiral wound gasket and new stud bolts and nuts, as directed at site and as per specification/codes. The tentative requirement of the Gaskets and Stud bolts is indicated in "Contractor's Scope of Work". Tenderers are enquired to take the actual dimensions & Qty before procurement of the same. The Stud bolts and Gaskets to be inspected by Third Party Inspection for application of the same for LPG usage confirming to the relevant Testing Code. The test reports to be submitted before using the same. After completing the testing fresh gas in is to be carried out by way of assisting to IOC /Third party Inspection agency. Finally, correctness of level gauges has to be established.

Purging (Gas in) bullet after completion of all NDT tests draining the water as directed by site engineer / Third party Inspection agency.

MSV settlement level has to be made with respect of bench marks. Rate lump sum per vessel. Checking Settlement (with respect to PBM) using total station equipment by competent surveyor at various positions of water filling & decanting in vessel viz. 0%, 25%, 50%, 75% and 100%. Report to be submitted in three copies.

CERTIFICATION AND DOCUMENTATION: Inspection services for statutorytesting of 600 MT Mounded Storage Vessels [MSVs] including (i) Visualinspection of MSVs (ii) Internal & External Inspection (nozzles etc.) of the entire Vessel Surface to detect to deterioration (iii)Witnessing, guiding, supervising, interpretation and analysis of NDT asper scope of work given in schedule (iv) Witnessing and supervision ofall tests (v) Preparation of detail reports containing observation,recommendation and certification as per SMPV rules & OISD 150. (vi)Certifying Hydro test and calibration of each Mounded Storage Vessels. (vii) Preparation& Submission of Detailed NDT Report & Certification of Vessel under SMPV(U) Rules by the competent agency authorized by PESO in three copies.An inspection engineer having engineering degree with adequate field experience should be posted at site for supervision all the time till the completion of work. The parties hired shall be reputed and are dealing/having past experience in Inspection-Certifications of hydrotesting of LPG vessels and should have PESO approval authorization in the name of certifying person as competent person for Mounded StorageVessel."

Painting of external surfaces of LPG lines , product lines, water sprinkler pipelines, Air pipelines of various diameters including surface preparation to SSPC SP2 by hand cleaning wire brushing applying one coat of Zinc phosphate primer (P3) coating of 30-35 Micron DFT and 2 coats of Synthetic enamel of approved colour of 25 microns each coat (Total DFT 80micron) . The item includes all necessary works for completion of the work including supply of paint, labours, materials, numbering of nozzles complete as per the approved colour and directions at site. Payment will be made based on area painted.

Visual inspection & Ultrasonic Thickness Test of LPG loading & Unloading Arm along with certification in isometric Sketch

Visual Inspection of A/G LPG Pipeline( both Liquid & Vapor)

Visual Inspection & Ultrasonic Thickness Test of U/G LPG Pipeline

Ultrasonic thickness survey of A/G LPG Pipeline( both Liquid & Vapor)

certification of Thikness Survey based on isometric sketch and comparision Report with original and last thk test readings