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| 1 | Dismantling and taking down existing pressed steel bottom plates of size 1.22 mtr x 1.22 mtr x 6mm thick or side plates of size 1.22mtr x 1.22 mtr x5mm thick as directed from 9600 gallons capasity steel Overhead tanks on 12 metre high stagging carefully without damaging other members after unscrewing bolts, nuts,washers etc and separating serviceable plates and nuts , bolts and washers etc and keep in safe custody for reuse at site complete all as specified and as directed. |
| 2 | Supply, erection, hoisting and fixing of new pressed steel bottom plates of size 1.22m x 1.22m x 6mm thick made to required shape, including drilling necessary holes for fixing bolts and nuts including provision ofproper arrangement of lead joint in between platesas require at site to existing water tank at 12 mtr high stagging complete all as specified and directed. |
| 3 | Supply, erection, hoisting and fixing of new pressed steel side plates of size 1.22m x 1.22m x 5mm thick(with necessary jointing materials) made to required shape, including making necessary holes through drilling for fixing of bolts and nuts including provision ofproper arrangement of lead joint in between platesas require at site to existing water tank at 12 mtr high stagging complete all as specified and directed. |
| 4 | Fixing only old serviceable and repaired pressed steel side plates of size 1.22m x1.22m x 5mm thick & bottom plates of1.22m x 1.22m x 6mm thick (with necessary jointing materials) made to required shape, making necessary holes through drilling for fixing of bolts and nuts including provision ofproper arrangement of lead joint in between platesas require at site to existing water tank at 12 mtr high stagging complete all as specified and directed. |
| 5 | Repairs to damaged portion of pressed steel tank plates for9600 Gallons PS Overhead Tank of existing gauge and size by means of welding over the hole upto 20mm dia with new Mild Steel plate of size 15 cm x 15 cm x 6mm thick on the inner side of pressed steel tank and testing complete all as specified and as directed. |
| 6 | Dismantling of rusted angle iron bracing and tie bar from Pressed Steel overhead Tank on 12 meter high staging by unscrewing nuts, bolts and washers etc complete all as specified and as directed. |
| 7 | Material and labour for mild steel Fe 410 -W (Gde- E- 250) quality- A Fe angle iron 65 x 65 x 6mm as in tie bar, cross arm, bracing etc as required and directedincluding making necessary holes through drilling for fixing of bolts and nuts to existing pressed steel tank on 12m high stagingand paintingwith two coats of aluminium painting over a coat of red oxide zinc chrome primer complete all as specified and as directed. |
| 8 | Supply, erection, hoisting and fixing of mild steel top plate/roof sheet 3.15 mm thick made to required shape by making necessary holes through drilling for fixing of nuts, bolts and fixed to existing pressed steel water tank on 12 metre high staging including dismantling/taking down existing unserviceable sheet complete all as specified and as directed. |
| 9 | Fixing only serviceable nuts, bolts and washers of appropriate length and of dia 16 to 20 mm required for fixing of steel plate, tie bars and bracing etc complete all as specified and directed. |
| 10 | Supply and fix mild steel machine made nuts, bolts and washers etc dia of 16 to 20 mmas required for fixing of steel plate, tie bars and bracing etc complete all as specified and directed. |
| 11 | Material and labour for preparinginternal surfaces of pressed steel over head tank, 12 mtrs high stagging of 9600 gallons capacity, over 10 cm width or girth, and applying with two coats of black bituminous paint ( suitable for drinking water purpose) complete all as specified and as directed. |
| 12 | Material and labour for preparing external surfaces of pressed steel over head tank, 12 mtrs high stagging over 10 cm width or girth, by scraping with steel wire brushes and applying two coats of aluminium paint (over surface of PS tank ,stagging, etc) over a coat of red oxide zinc chrome primer, complete all as specified and as directed. |
| 13 | Supply, install, jointing & testing CI body sluice valve of size 150 mm bore class PN-1.6, ISI marked (as per IS-14846 of 2000) heavy duty with flanged ends with high tensile stainless steel spindle, iron hand wheel and fixing with nuts, bolts, washers and rubber gasketsheet for packing including taking out existing unserviceable sluice valve fixed at any position all as specified and directed by Engr-in-Charge. |
| 14 | All as per Item No 13.00 here-in-above but of size 100 mm bore complete all as speciifed & as directed |
| 15 | All as per Item No 13.00 here-in-above but of size 80 mm bore complete all as speciifed & as directed |
