Tamil Nadu Generation And Distribution Corporation Limited Tender
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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender
Eprocure
Opening Date19 Feb 2025
Closing Date4 Mar 2025
Tender AmountRefer Documents
Costs
EMD
₹ 27,300Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Ttps Operation Circle Mpm Ii Unit- V Attending To Preventive And Breakdown Maintenance Works Like Renewal Of Wornout Grinding Elements, Ring Roll Setting, Carrying Out Patch Welding In Coal Pipes Etc., From 01.04.2025 To 31.03.2026
Description
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Contact
Tender Id
2025_EB_526142_1Bid Award Id
ViewTender No
CE/SE/O/TTPS/Spec.No.32/25-26Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
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Documents
TTPS Operation Circle MPM II Unit- V Attending to preventive and breakdown maintenance works like renewal of wornout grinding elements, ring roll setting, carrying out patch welding in coal pipes etc., from 01.04.2025 to 31.03.2026
TTPS Operation Circle MPM II Unit- V Attending to preventive and breakdown maintenance works like renewal of wornout grinding elements, ring roll setting, carrying out patch welding in coal pipes etc., from 01.04.2025 to 31.03.2026
BOQ Items
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Charges for changing one set of bull ring segments, fixing wedges including transportation from stores and devolution of scraps to stores. This includes hire charges for tools & plants and cost of consumables etc.,
4
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Charges for dismantling the vane wheel segments of the airport ring assembly from bowl extension ring, removing the weld joints by gas cutting all around the bowl with vane wheel segment, grinding the bowl and vane wheel surfaces free from weld metal deposits, tapping, fixing hole threads and re-fixing the new or old vane wheel segments with bowl, re-welding the bowl and vane wheel by leaving correct gap all around the bowl, hard facing the vane wheel deflector plates including transporting of materials from stores and devolution of scrap to stores and hire charges for T&P’s and cost of consumables.
4
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Charges for dismantling the bowl extension ring from bowl, cleaning the threads, renewing and hard facing the inner surface if required including transportation of materials from stores and devolution of scraps to stores and cost of consumables.
4
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Charges for cutting the journal protection half round plate, refixing and welding new/old plate for the protection of journal shaft assembly. This includes transportation of materials from and to stores and cost of consumables.
72
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Charges for cutting the body liners of the airport ring assembly around the mill body, grinding the welded joints in mill body and renew with old/new body liners, aligning the liners in position to avoid foul with vane wheel, complete welding including charges for transportation of materials from and to stores and hire charges for T&P and cost of consumables, minor patch up work in body liners to be carried out.
5
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Charges for releasing the journal spring assembly from the journal door, dismantling the assembly for inspection, complete overhauling of spring assembly changing of worn out parts, cleaning the moving part with smooth emery, polishing, changing of ‘O’ ring, reassembling, refitting the same and checking spring compression, changing journal head insert and insert holder as per the direction of engineer-in-charge including cost of consumables.
18
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Charges for dismantling the scrapper assembly, heat shield, insulation, skirt assembly air seal runner cleaning and welding of scrapper shoe in kit assembly, and re-fixing the same, cleaning of internal threads and tapping in under bowl and mill inspection door and providing new bolts as per the direction of engineer in-charge including transportation of materials from and to stores and cost of consumables.
2
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Charges for inspection and defect rectification works on gravimetric feeder after dismantling all the idle roller pulley, bearings, checking of clean out conveyor and changing of bearings if any, chain link, tensioning, cleaning and changing of belt and other worn out parts and reassembling the same in complete shape and oil filling in gear box. This includes transport of materials from and to stores and consumables
6
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Charges for dismantling of lube oil cooler, from lube oil system, cleaning, flushing the cooler, oil pipe lines, water pipe lines, oil separator tank, checking of water lines, valves and nipples, replacement of worn out parts, reassembling the same as per the direction of engineer-in-charge. Including consumables like rubber cord, cotton waste etc.,
2
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Charges for dismantling the lube oil pump from position, dismantling, overhauling and changing of wornout parts, reassembling, setting the pressure to the requirement and arresting any oil leak through pump, aligning the pump with motor, greasing the coupling including cost of consumables like diesel, gada cloth etc.,
4
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Charges for inspection, cleaning, checking the coal pipes between mill and boiler, down spout centre feed pipe, air duct and mill parts for leaks and arresting the leak by patch welding with 12 mm M.S plate suitably bend to shape. After transporting the plates from stores to site and devolution including cost of consumables such as welding electrodes, cutting gas (M.S plates will be supplied by board on free of cost) Rate /mtr at patch welding.
300
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Charges for changing of worn out scrapper pin, push, pin cover, reconditioning of scrapper, cleaning of under bowl, checking of clearance, inspection and welding of wheels support lugs, wall side liner etc., in mill under bowl.
6
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Charges for ring roll setting and adjusting spring compression, checking of journal oil and topping up after flushing, gear box oil level checking and oil topping up, seal air line flushing and patch up work in journal protection plate, etc., including charges for consumables and hire charges for tools and plants.
38
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Charges for removal of choked up coal in the gravimetric feeder discharge hopper, centre feed pipe of size dia 610 mm, length 10 mtr, inside the mills, under bowl and tramp iron chute by chocking and cleaning of the mills internals of feeder internals including cost of consumables and hire charges for T&P.
28
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Charges for dismantling knife edge gate valve and changing the worn out gate, gland and supports including replacement of seals and ‘O’ rings.
24
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Charges for dismantling power cylinder replacing seals and ‘O’ rings and re-fixing the cylinder in position connecting with the gate valve.
40
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Charges for dismantling the cover of the mill isolation valve provided in the P.F pipes near boiler corners at 16 mtr floor (4 Nos per mill), providing of dummy gates for safe working inside the mill and removal of gate after completion of work.
72
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Charges for dismantling the End cover of the hot air gate cylinder after closing the instrumentation airline and changing the worn out cylinder gasket 2 Nos, and assembling the End cover and checking the open/close operation.
2
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Charges for dismantling the damaged/broken journal stop bolts of the separator body below the journal door after unfastening the journal stop bolt Nut, Cover plate, etc., including the journal stop bolt bushing and assembling the journal stop bolt with bushing into the original position with the proper cleaning, after cleaning the seating area with Diesel and gada cloth etc.,
8
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Charges for Tapping the mill journal door M 24 holes (34 Nos) and M 20 holes (6 Nos) Using Tap set after cleaning the ash deposition and coal powder deposition for pucca seating thereby avoiding the coal powder leakages.
8
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Material on Contractor Scope
M 20 x 50 mm. Full thread. H.T. Hexagonal bolt
Grade : 8.8 bolt. Make:MFPL.
30
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Material on Contractor Scope
M 24 x 60 mm. H.T Full thread. Hexagonal bolt Grade : 8.8
60
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Material on Contractor Scope
M 20 x 80 mm. H.T Full thread. Hexagonal bolt nut & washer as per IS 1367 Grade 4.6
30
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Material on Contractor Scope
M 20 x 50 mm. Full thread Allen bolt.
24
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Material on Contractor Scope
M 20 x 100 mm. Allen bolt
36
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Material on Contractor Scope
M 24 x 80 mm. Full thread socket head cap bolt Grade 12.9 with spring washer.
32
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Material on Contractor Scope
M 24 x 100 mm. Socket head cap bolt Grade 12.9.
102
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Material on Contractor Scope
M 33 x 90 mm. Grade 12.9 as per IS:2269 Hexagonal Socket head cap screw. Make : Unbrako/TVS
48
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