Tender For maintenance and repair To Water Supply Schemes @ Ranjangaon ......... Strengthening Of Bridge Walkway, Traction And Suspender Assembliesand Flocculation Clarifier Tank Structure Etc For Clf No. 1 And Other Misc Works At Water Supply Scheme
Tender Value
39.25 Lakhs
Estimated cost
Bid Submission
09 Sep 2026
11 days left
EMD
39300
Bank guarantee accepted
Document Fee
10030
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Pune → Maharashtra
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for maintenance and repair To Water Supply Schemes @ Ranjangaon ......... Strengthening Of Bridge Walkway, Traction And Suspender Assembliesand Flocculation Clarifier Tank Structure Etc For Clf No. 1 And Other Misc Works At Water Supply Scheme, Ranjangaon.
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 24-Aug-2026 | ITEM SPECIFICATION | Other | 09-Sep-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Strengthening of Bridge walkway, traction and suspender assembliesand flocculation clarifier tank structure etc for CLF no. 1 and other misc works at Water supply scheme, Ranjangaon. |
| 2 | 1) Dewatering the excavated trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-in-charge (including cost of machinery, labour, fuel), etc. complete. (Bd-A-9/261). (i) The Contractor at his request may be allowed to start construction of masonry steining so as not to allow silting of well in oncoming monsoon and while paying masonry, 25% amount shall be withheld and released only when excavation to the full depth is completed. (ii) Dewatering : Total dewatering charges are to be proposed in the tender as lumpsum amount and 75% is payable for excavation and 25% is payable for construction of well / gallery. Out of 75% excavation, break-up shall be as under 25% for last 1 M depth. 20% for 2 M depth which is just above last 1 M depth.15% for 2 M depth which is just above last 3 M depth. 15% for the rest of depth from water table level. The above conditions will restrict the tendencies of agencies to avoid deepening of wells, etc. to the required depth. |
| 3 | 2) Dismantelling complete old CLF. Bridge walkway assembly, inner suspender assembly, outer suspender assembly, flocculator assembly, traction drive assembly and all other sub-assemblies on temporary support and removing old worn out, corroded rusty parts and stacking the scrap with in a lead of 100 mtrs. |
| 4 | 3) Repairs to mechanical flocculator drive assembly by replacement of faulty gear box,faulty electric motor, base frame. Replacement of corroded worn out m.s.Paddles ,shaft, paddle arms by new m. s. parts of higher sections and retaining existing paddle geometry and strength. All the new steel parts shall be painted / galvanized. |
| 5 | 4) Repairs to traction drive assembly :-All m.s. parts such as base frame, trolley assembly :- New end carriage assembly consisting of a sturdy M.S trolley with required degree or curvature suitable for smooth circular motion of the bridge walkway and a independent drive assembly consisting of worm gear reducer of adequate size and capacIty driven by a three phase electric motor of adequate rating and power, interconnected by C.I. couplings and finally transmitting motion to traction wheels via chain sprocket assemmbly. The drive assembly shall be mounted on a sturdy base frame fabricated from ISMC 100 x 50.The traction assembly shall have 2 polyurethane coated wheels, the shaft of the wheels shall be provided with self align bearings housed in cast iron pedestal housing. The drive assembly shall also be provided with suitable chain drive to derive necessary speed. (all M.S. parts such as base frame ,trolley assembly shall be painted / galvanized |
| 6 | 5) Repairs to central bearing assembly and central turn table : -This item includes supply of new central bearing assembly consisting of imported thrust bearing having adequate vertical load carrying capacity of not less than 2.5 ton to carry the vertical load of the equipment and two radial ball bearings to counter the radial load of the walkway. The bearings are housed in a bearing housing fabricated from high grade seamless pipes specially used for manufacturing heavy duty bearings and high carbon steel plate having high shear strength properties. The fabricated housing is machine on high precision lathe machine and cylindrical grinding machine to close tolerances required for press fit of N9 grade. The housing along with the outer race of radial ball bearing shall rotate where as the inner race of the bearing shall be press fit on a spindle with plate .The spindle with plate is fabricate from high carbon high chromium steel machined on high high precision lathe machine and cylindrical grinding machine to close tolerances to achieve n-9 finish. The bearing assembly is also provided with hinje pin joint to cope the misalignment caused due to level difference if any between the traction path and central shaft top. The central bearing assembly is welded to a base plate or a foundation plate which is firmly anchored to the central column. The bridge walkway is supported on the bearing assembly via a sturdy central support frame fabricated from m.s channel and angle. The central support frame / turn table and all other steel parts shall be painted/ galvanized . |
| 7 | 6) Repairs and strengthening of bridge Walkway : - Replacing all the corroded and worn out parts by new m. s. parts bolted by G.I. hardware the bridge walkway shall be designed for self load,flocculator load, the suspender load and live load confirming to IS.The walkway shall have a width not less then 1.00 Mtr and shall cover full diameter of flocculator on both sides of the central shaft and extend up to the outside diameter of the clarifier tank. The walkway shall accommodate two numbers paddle type flocculator assemblies suitably located on either side of the central column. The walkway bridge shall be supported on two supports only , one at the centre of the tank on the central brg. Assembly at the centre of the tank and the other on the traction trolley on the launder beam. The walkway shall have m.s railing of 1 mtr. Height on both the sides along its total length. The walkway shall be covered with chequered plate. The entire structure shall be sand blasted, pickled and then painted/galvanized |
| 8 | 7) Repairs to inner suspender assembly in flocculator tank : -providing ,erecting and commissioning new inner suspender assembly consisting of framed structure fabricated from m. s. structural steel such as angles and channels of adequate size and section, The entire structure shall be Painted/ galvanized icluding bottom scrapers 6 Nos. |
| 9 | 8) Repairs to outer suspender assembly in clarifier tank :-Providing, erecting and commissioning new outer suspender assembly consisting of framed structure fabricated from m. s. structural steel such as angles and channels of adequate size and section. The entire structure shall Painted/ galvanized .icluding bottom scrapers 9 Nos. |
| 10 | 9) Electrical control panel : - Replacing the old electric motor control panel by new electric motor control panel.The electric control panel shall be a cubical panel fabricated from 16 swg C.R. Sheet with powder coating. The panel shall consist of a main incomer in the from of 32 amp MCB., 4 16 amp MCBS as isolation switches, 3 DOL motor starters. All the parts in the panel shall be interconnected by copper wire. |
| 11 | 10) Slip Ring : Replacement of faulty slip ring by new slip ring having 4 way copper ring current collector with backelite rods , carbon brush holders, carbon brushes etc.including material ,labour etc.complete. |
| 12 | 11) Supplying, erecting & terminating XLPE armoured cable 3 core 2.5 sq. mm.copper conductor continuous 5.48 sq. mm. (12 SWG) G.I. earth wire complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU |
| 13 | 12) Comprehensive maintenance of central bearing assembly of the second CLF no. 2 for period of 1 year. |
| 14 | 13) Comprehensive maintenance of flocculator drive assembly of the second CLF no. 2 for period of 1 year. |
| 15 | 14) Comprehensive maintenance of traction drive assembly of the second CLF no. 2 for period of 1 year. |
| 16 | 15) Repairs and comprehensive maintenance of electric control panel of the second CLF no. 2 for period of 1 year. |
| 17 | 16) Repairs to flash mixer of the second CLF no. 2 including servicing of gear box ,replacement of oil seals , gear oil , servcing of electric motor ,replacement of C.I couplings ,etc. complete and comprehensive maintanance for period of 1 year. |
| 18 | 17)Rebate for scrap: - since the scrap generated is old and fifty percent of the structure immersed in water and is totally corroded and rusty and scaled due to which there is a loss of weight of the old structure removed, hence 10% less weight is considered for rebate. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 24, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Sep 09, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 11 daysSep 09, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 11 daysTender Documents
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