Indian Oil Corporation Limited Tender

Providing MS tubular scaffolding inside/outside the Bullets suitable for cleaning of inner surface and suitable for carrying out all inspections like ultrasonic testing. Radiographic testing. MPI and other NDT’s and all allied jobs for inspection at various places and around all welding joints on outer surface as directed by the third party agency approved by IOC. Scaffolding arrangements should be provided with movable foot rest / MS Grill type / pathway etc., for easy movement of personnel and resting equipments. Whenever tubular pipe touches the shell plate, suitable rubber pads to be provided to avoid damages to the shell. The scaffolding shall be retained by IOCL till the completion of the bullet testing. The Contractor has to provide scaffolding material for minimum 1 bullet. The same to be dismantled and reused for other bullets. Bullets will be handed over one by one after completion of all works in one bullet. Rates inclusive of works carried out for all three bullets. Providing PESO approved FLP fan for air circulation. Providing scaffolding for MSV outer walls for cleaning and painitng , scaffolding to be retained till completion of all the works

Internal cleaning : Thorough cleaning of the inner surface with water jet and cleaning the sludge/ rust material followed by thorough cleaning of inner surface to remove the scale, Oil and rust by rotary pneumatic wire brushes to expose the metal surface. Through buffing of welding joints (Minimum 10 mm on both the side of each welding joints including nozzle welds by thorough cleaning) and 200 mm on all the sides of the entire weld joints of the nozzles and weld area. The gasket to be subjected to third party inspection for application of the same for LPG usage confirming to ASME B 16.2 or equivalent for gaskets. The contractor has to provide all equipments, necessary FLP light fitting and cables etc., FLP ventilation provision and consumables for carrying out the cleaning job and also facilitate for carrying out NDT tests. Localized grinding of the welds to be done, if required. Note : All electrical fitting should be FLP

Providing flameproof lighting arrangement inside the bullet and FLP Exhaust fan suitable for existing Manhole for carrying out necessary inspection, cleaning and NDT tests. Contractor to supply the flameproof light fittings, Junction boxes, required cables etc, as directed at site. Only one bullet will be handed over for testing at a time. IOC shall retain the lighting arrangement till completion of all the three bullets and the same lighting arrangement may be used in the other bullets by turn. Rate to be quoted on lump sum per bullet. (3 x 600 MT Mounded bullets)

Fixing back all the liquid and vapour lines after servicing of the valves or replace with new valves supplied by IOCL (against valves which fails in hydro test). Valves include EFCVs, ROVs and Manual valves.. Removal of existing EFCV from liquid lines and replace with spool piece, material for spool piece will be supplied by Contractor, fabrication and testing to be done by contractor. Fixing all removed fittings like HLA., Servo gauge, Rochester gauge, SRVs , Pressure/temperature gauge, Manhole cover etc., including supply of asbestos/graphite filled spiral wound metallic gaskets and new stud bolts for all first flange fittings.( new gaskets and new stud bolts to be supplied by contractor). This included all the works pertaining to commissioning of the bullets after inspection and testing duly approved by CCOE approved third party and subsequent cleaning of all debris and removing of scaffolding materials at site.

Painting external surfaces of LPG pipelines, as below as per EIC instructions: 1. Surface preparation to St-2 hand cleaning, wire brushing 2. Coating of Protecto mastic coating (P4) of 100-125 micron 3. Two pack acrylic polyurethane finish paint of 40-50 microns as per technical specifications enclosed to obtain a total minimum DFT 240 micron.

Hydrostatic Pressure testing of Bullets after completion of all NDT using the IOCL supplied water for the specified hydrostatic test pressure by using Contractor owned FLP motorized pump as per the direction of EIC/TPI at the top and draining the water after completion of testing. The contractor has to make his own arrangements for motorized pressure testing equipment which has to be retained till completion of the work. The entire testing will be witnessed by Third Party Agency

Purging (Gas in) bullet after completion of all NDT tests and using water and draining the water as directed by Engineer/site inchrage

Calibration of the MSVs (3*600 MT), IS:2827-1976 and certification by authorized personnel given in the tender document

Ultrasonic thickness measurement checking evenly spread over the entire inner surface including both dish ends and the openings. Code ASTM-A-435. 600MT Bullet

100% ultrasonic flaw detection (Width of scanning 50mm) of welds as per applicable codes from inside as directed by our third party agency. Code ASTM-E-164& ASME Sec V & Sec VIII Method: Pulse echo. 600MT Bullet including all the T–joints of middle circumferential seams and both dish ends weld seams & nozzle joints

100 % Wet flourescent Magnetic Particle Test of all weld joints by using Magnaflux - Y7 yoke type as per third party agency directive. Code: ASTM- E-164 & ASME Sec V & Sec VIII Machine- Magnaflux-Y7-Yoketype.

Radiographical examination of weld joints if required at selected locations as per third party inspection agency based on detection of flows or detects during other test subject and as per applicable Code -600MT Bullet.

Hardness test with portable micro processor based digital hardness tester as directed by our third party inspection agency and as per applicable code. Code ASTM-E-110 600MT Bullet

Dye penetration test at accessible areas as directed by our third party inspection agency(600 MT bullet). Liquid penetrant inspection of all the fillet welds, nozzle joints,

Third Party Inspection scope of work for statutory testing of 3x600MT Mounded Storage Vessels: 1. Visual inspection of Bullets, 2. Internal inspection of the entire surface of the Bullets to detect for deterioration. Carrying out external inspection on mound, retaining wall, inspection tunnel, bottom nozzle & its suspension/ supports, accessible top nozzles etc. 3. Witnessing, Guiding, Supervising, interpretation and analysis of NDT as per scope of work given in the schedule 4. Witnessing of Hydrostatic test 5. Preparation of detailed report containing observations, recommendations and certification as per SMPV rules and OISD, including submission of certificate of control and uploading in online to comply with PESO requirements.

External Ultrasonic Thickness testing of Hydrant pipeline and thickness survey maintained on an isometric and dimensional drwaing (approximate length of 3000 running meters)

Cleaning and Painting of MSV outer wall structure with acyllic emulsion paint of approved brand and manufacture for giving even shave with 2 more more coats :- MSV mound painting works.

Synthetic enamel painting of structures and pipelines

Wall Painting for MSV Mound including art work,name, monogram, dates etc. Job includes painting of one coat of synthetic enamel paint over one coat of specific primer on new/old plastered surface including cost of all materials/ labour, scraping/cleaning, scaffolding etc. complete in all respect. Works includes painting of indianoil logo , bullets numbering , dates and associated lettering and art works on MSV

2 inch globe valve of Class 300 For LPG use