Tamil Nadu Generation And Distribution Corporation Limited Tender
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The TANGEDCO has issued a formal invitation for competitive bids for the Tamil Nadu Generation And Distribution Corporation Limited project, for Mtps I Tm Unit I Overhauling And Flange Gasket Renewing Of Valves In Heater Drain Pegging Steam To Deaerator Condenser Air Auxiliary Steam And Drain Water Lines And Gasket Renewing Of Valves In Unit I During Aoh 2025 26 in Salem, Tamil Nadu. The bid opening date for this tender is 08-05-2025 and the last date for bid submission is 22-05-2025. Interested bidders for Tamil Nadu Generation And Distribution Corporation Limited tender can download the important documents here to check the tender amount, scope of work, eligibility criteria and technical requirements.
Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender
Machinery and Tools
Eprocure
Opening Date8 May 2025
Closing Date22 May 2025
Tender AmountRefer Documents
Costs
EMD
₹ 6,500Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
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Contact
Tender Id
2025_EB_555547_1Bid Award Id
ViewTender No
CE / MTPS-I / SE / M-I / TM /OT. 65 / 2025-26Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
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Documents
MTPS I TM Unit I Overhauling and Flange gasket renewing of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines and gasket renewing of valves in Unit I during AOH 2025 26
MTPS I TM Unit I Overhauling and Flange gasket renewing of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines and gasket renewing of valves in Unit I during AOH 2025 26
BOQ Items
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Overhauling of GV 150/64, 40, 16 ATA HO, GV 6 “/ 600, 300, 150 class HO, GLV 150 /40 ATA , GLV 6 ” / 300 class HO/MO, SCNRV 200/40, 16 ATA. Dismantling the valve, cleaning all the parts, checking the seating surfaces, bearing, yoke bush etc., Lapping the gate/seat/disc/flap for perfect blue matching. Re-assembling the valve with new gland packing rings and bonnet gaskets without any leak. Checking the Actuator thrust base bearing and apply lubrication .
16
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Overhauling of PNRV 100/250 ATA , GLV 100 / 40 , 16 ATA, GLV 4” / 600, 300 class HO / MO , SCNRV 150/ 40, 16 ATA, SRV 2.5 ” X4 ” / 300 Class ,GV 350/125 class & GV 300/125 class, SCNRV 350/125 class .
Dismantling the valve, cleaning all the parts, checking the seating surfaces, bearing, yoke bush etc., Lapping the gate/seat/disc/flap for perfect blue matching. Re-assembling the valve with new gland packing rings and bonnet gaskets without any leak. Checking the Actuator thrust base bearing and apply lubrication.
21
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Overhauling of GV 65 / 300 class , GLV / GV 50/ 64, 40 ATA, GLV 2” / 800, 1500, 2500 class HO/MO, SCNRV 100/16 ATA and GV, GLV 200/125 Class.
Dismantling the valve, cleaning all the parts, checking the seating surfaces of Gate/seat/ disc/ flap, bearing yoke bushes thrust base of the actuator etc.. Lapping the seating surfaces of gate/ seat/disc / flap for perfect blue matching. Reassembling the valve with new gland packing rings and bonnet gaskets without any leak. Checking the Actuator thrust base bearing and apply lubrication.
22
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Overhauling of Control valve 6” x 6”, 4” x 4”, 2.5”/2.5” /150, 300 class.
Dismantling the valve, cleaning all the parts, checking the seating surfaces and actuator bearings. Lapping the gate / seat /flap for perfect blue matching, Reassembling the valve with new bonnet gaskets and gland packings.
6
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Overhauling of GLV 1” / 800, 1500, 2500 Class HO/MO.
Dismantling the valve, checking the seating surfaces. Cleaning all the parts. Lapping the disc with seat for perfect blue matching. Reassembling the valves with new gland packings and bonnet gaskets. Checking the Actuator thrust base bearing and apply lubrication
25
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Changing the eroded pipe HPH Air Vent line (Orifice plate) Cutting the eroded and punctured pipes with orifice plates line HPH-5, 6 & 7 air evacuation line to FT(1) header line for a length of 400 mm removing the pipes of both sizes of the orifice plate connecting the orifice plate by welding and machining providing the pipes at both sides of the orifice plate and then with the lines by welding and replace orifice plate if necessary.
3
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Cutting the man hole 500 x 600 mm in the Flash Tank No.1 & 2 for easy access to inspect the inner side of FT –I and attending to cracks & welding joint leak inside the Flash Tank No.I. a) Cutting the man hole (500 x 600 mm) in the Flash Tank – I for easy access to inspect the inner side of FT-1.
1
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b) Cleaning the Flash Tank 1 grinding the cracked portion inside the tank bottom and middle welded joint and nozzle header joints etc. as per requirement and making ‘V’ grooves and welded the portion.
1
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c) Grinding the manhole edge of the plate and Flash Tank-1 closing the manhole and welding after cleaning the inner side of the Flash Tank-1.
1
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Cleaning and painting: Cleaning and painting of Cooling water and Auxiliary cooling water lines in Turbine area.
100
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Pure Graphite Die molded Gland Packing Rings to with stand a pressure of 200 Ksc and Temperature of 600oC density between 1.4 – 1.6 gm/cc and carbon content minimum 99.5 % (Full Ring) size: 41.3 – 17.2 – 12 mm for Feed water, Steam line 1” HO/MO drain line valves.
104
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Pure Graphite Die molded Gland Packing Rings to with stand a pressure of 200 Ksc and Temperature of 600oC density between 1.4 – 1.6 gm/cc and carbon content minimum 99.5 % (Full Ring) size: 55.6 – 27 – 13.5 mm for Feed water, Steam line 2” HO/MO drain line valves.
20
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Cost of Enamel paint
11
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Cost of welding electrodes For Item No.10,11&12
( SA 106 Gr (7x60)Nos)
420
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Cost of Cutting Gas for cutting the man hole in the Flash Tank No.1 and Cutting the eroded and punctured pipes with orifice plates line HPH-5, 6 & 7 air evacuation line to FT (1) header.
0.5
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Champion Make Style – 54 Super Non-Metallic Compressed Asbestos fiber Jointing sheet confirm to IS 2712/1998, Grade W/1, Size 2000 x 1500 x 3mm gasket for Heater trip, Auxiliary steam, Condencer Air and Auxiliary cooling water lines.
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Champion Make Style – 54 Super Metallic Compressed Asbestos fiber Jointing sheet confirm to IS 2712/1998, Grade W/1, Size 2000 x 1500 x 4mm for Heater trip, Auxiliary steam, Condencer Air and Auxiliary cooling water lines.
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Consumables and T& P Charges For Item Sl.No: 1 to 13
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Evaluation Notes How It Works ?
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