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| 1 | Dismantling and taking down old unserviceable pressed steel plate of pressed steel overhead tank such as pressed steel sheets of any size, internal bracing nuts and bolts, top cover, angle iron channel, float and all water supply connections to tank of capacity 20000 Glns at 15/12 mtrs height and staking serviceable materials from site of work complete all as directed. NOTE -(i)Work has to be carried out at 15/12 mtrs height above ground level and nothing extra is to be paid for the same.(ii)All safety measurers for the labour to be provided by contractor. |
| 2 | All as per item No 01.00 here-in-before but 10000 Glns PSOH Tank |
| 3 | S & F PS plate of size 1.25m x 1.25m x 6 mm thick fixed to PS overhead tank bottom and first layer including all jointing materials such as good quality rubber gasket, lead wool wire, black putty etc.To make the joints leak proof complete all as specified and directed. |
| 4 | All as per item No 03.00 here in-before but 1.25m x 1.25m x 5 mm thick for second layer. |
| 5 | All as per item No. 03.00 here-in-before but fixing only PS plate 5/6 mm thick including good quality rubber gasket, lead wool wire, black putty etc, to make the joints leak proof, including cutting/welding complete all as specified and directed.(NOTE : Existing PS plate, nuts and bolts with washers which are retrieved item No 01&02 shall be re-used) |
| 6 | S&F mild steel angle size 65 mm x 65 mm x 6 mmfor bracing supporting members of PS tank including cutting, welding, bending, drilling holes etc complete all as specified and directed. |
| 7 | S & F mild steel angle size 50 mm x 50 mm x 6 mm for bracing supporting members of PS tank including cutting, welding, bending, drilling holes etc complete all as specified and directed. |
| 8 | M & L for mild steel sheet, 3.15mm thick as in top cover of PS overhead tank. |
| 9 | M & L for preparation of painting old steel surfaces of PSOH tank internally (inside storage) applying two coats of hygienic bituninous paint over a coat of red oxide zinc chlorine and sealing surface previous treated with tar, bituminous compositions with one coat of knotting in preparation for painting suitable for drinking water purpose. |
| 10 | M & L for preparation ofpaintingoldsteel surfaces by scrapping & painting of steel overhead tanks external surface by applying two coats of Aluminium paint over a coat of red oxide primer incl suitable staging all as directed. |
| 11 | Dismantling of exisitng butterfly valves 80mm/100mm/ 150mm dia including all necessary fittings (old material shall be contractor property for which credit will be given by the contractor. |
| 12 | Dismantling of existing Sluice Valves 80mm/100 mm dia including all necessary fittings (Old material shall be the contractor property for which credit will be given by the contractor). |
| 13 | Dismantling of existing Sluice Valves 150mm/200mm dia including all necessary fittings (Old material shall be the contractor properly for which credit will be gien by the contractor). |
| 14 | S & F sluice valve cast iron complete with all accessoriesand wheel confirming to IS-14846 specification, PN 1.6 |
| 15 | (a) 80 mm bore |
| 16 | (b) 100 mm bore |
| 17 | (c) 150 mm bore |
| 18 | (d) 200 mm bore |
| 19 | S & F butterfly valve cast iron complete with all accessories to IS-14846 specification, PN 1.6 |
| 20 | (b) 100 mm bore |
| 21 | (c) 150 mm bore |
| 22 | Dismantling of old UNSV GI water tubing including all necessary fitting of following sizes.(Old material shall be the contractor properly for which credit will be gien by the contractor). |
| 23 | (a) 80 mm bore |
| 24 | (b) 100 mm bore |
| 25 | (c) 150 mm bore |
| 26 | Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth for laying of water supply pipe line n exc 10 sq m on plan and n exc 1.5 m in depth and getting outsoft/loose soil. |
| 27 | Returning filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil. |
| 28 | Removing excavated material n exc 50 m and depositing where directed at a level n exc 1.5 m above the starting point |
| 29 | M & L for GI Medium grade heavy duty ISI mark with all fittings complete with clips hooks etc for 150mm dia |
| 30 | All as per item No 20.00 here-in-before but 100 mm dia |
| 31 | All as per item No 20.00 here-in-before but 80 mm dia |
| 32 | M & L for construciton of valve chamber of size 1050mm x 1050mm x 1000mm size internal size including earth PCC foundation 1:3:6 of thickness 15 CM under masonry in cement mortar 1:4 complete with MS angle Iron frame 40mm x 6 mm and to MS cover 3.0mm thick with hinges and lockingarrangements and holdfast including plastering of internal wall surfaces with cement mortar of 1:4 of thickness 10mm and coping on top of brick masonry with PCC 1:4 and 20 mm grade stone aggregate with thickness 7.5 cm including painting of steel surfaces with two coats of black. |
| 33 | Supply and fixing CI fitings such as Bends (any type, radius and angle) tappers any type (Straight, Bend, Increasing, decreasing or double sockets etc) Tee pieces single branches, \"Y\" junctions, double branch cross (all socket or sockets end spigot) collars, caps and plugs complete of size up to 150 mm dia. |
