| Reference | SJI4441P21 |
| Date | 6/1/2020 |
| Location | Asia |
| Scope | The company announces its need for 37.37 kls capacity,7500 mm X 2500 mm X 2150 mm rectangular crude oil storage tank out of 6 mm thick IS:226 M.S plates with roof suitably skid mounted with all welded on structure along with heating coils. The tank should have the following: a) Both inlet & outlet of the tank shall be extended to 12 inch by suitably supported spacer spools from tank wall and the openings shall be of flanged end connection (as per ANSI B16.5). b) A dip hatch of 3 inch dia with suitable opening / closing facility shall be provided at the center of the rectangular manhole cover (tank top). An additional MS plate of size 8 inch x 8 inch x 6 mm shall be welded to the tank bottom plate, where the dip bob will hit during dipping. A dip stick has to be provided (made of steel) with a handle and properly calibrated as per the depth/height of the tank. c) Ladders with hand rails at appropriate locations(one outside the tank for climbing on the tank and the other one inside the tank; ladders should not be placed on the valaves. d) The tanks shall be complete with API 600 x 150 class gate valves with companion flanges and stud & bolts for inlet and outlet of the tanks. The valves shall be supplied from any one of the following make: M/s AIL, M/s L&T, M/s LACIER Industries e) Proper calibration marking should be there on the outside of the tank. f) A 3 inch vent to be provided at the top of the tank to allow the escape of gas/vapour g) Bidder has to design a suitable heating coil of size not smaller than 1 1/2" across the breadth of the tank. The coil has to be of Sch 160 material or XXS. The inlet of the coil has to be provided with a 2" size (600 class) IBR Valve (Press Max: 90 kg/cm2, Temp: 300 deg C) with a reducer to connect to the coil. A NON RETURN VALVE needs to be provided at the inlet. Also a valve of 1 1/2" needs to be provided of 600 class at the outlet of the coil. All valves and fittings have to be IBR approved. Also all welding job in the coil needs to be undertaken by an IBR Approved welder. Steam will be injected at around 90 kg/cm2 and at 300 DEG C. So all valves and fittings along with coil should be able to withstand high pressure and temperature. Welding Procedure: All welding procedure should be followed as per standard norms & done by certified welder in the tank. However all the weldings in the coil have to be done by IBR welder only. All welding electrodes should be as per IS: 814. There should be minimum 3(three) layers of welding & all welds should be visually inspected / examined. The critical welds should be subjected to radiography test, magnetic particle test and dye penetration test. Necessary test certificate must be shown at the time of inspection & provided along with dispatch documents. 2.0 Surface Preparation: After completion of all fabrication jobs, the surface preparation should be carried as follows: i. All welds should be made free of slag, slag inclusion, pinholes, spatters etc. Scrapping & Wire brushing should be carried out on all steelworks after removing all oil & grease deposit if any using approved degreasing agent & solvent. ii. Sand blast cleaning should be carried out in a controlled blasting shop & not during inclement weather conditions. iii. The air used during blast cleaning & after cleaning should be dry & free from moisture & all oil contamination. iv. All sand blast cleaned surfaces should be coated with the prescribed primer within 4(four) hours of blasting. v. The coil has to be tested at a pressure 1.5 times the design pressure and certificate in this regard has to be provided. OIL may depute its person for witnessing such test. 3.0 Painting: i. 2(two) coats of inorganic zinc primer of 70-80 micron DFT should be applied all over the tank, skid, ladder etc. ii. 2(two) coats of Synthetic Enamel paint of 90-100 micron DFT of Grey colour should be applied on the inner & outer tank wall surface, ladder, connections etc. iii. 2(two) coats of Synthetic Enamel paint of 90-100 micron DFT of Black colour should be applied on the Skid of the tank. iv. Synthetic Enamel paint should be of make Berger, ICI, Nerolac, Shalimar etc. v. SKID: Skid shall be painted with surface resistant high solids, high build, fast drying, polyamide cured epoxy mastic coating designed to protect steel. |
| Bid Bond | INR 160,400.00 |
| Offer Validity | 120 days |
