Tamil Nadu Generation And Distribution Corporation Limited Tender
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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender
Machinery and Tools
Eprocure
Opening Date4 May 2023
Closing Date18 May 2023
Tender AmountRefer Documents
Costs
EMD
₹ 6,100Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
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Contact
Tender Id
2023_EB_310708_1Bid Award Id
ViewTender No
CE / MTPS-I / SE / M-I / TM / OT. 88 /2023-24Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
GEM & Bid Advisory Services
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Documents
MTPS I TM Unit I Overhauling of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines in Unit I during AOH 2023 24
MTPS I TM Unit I Overhauling of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines in Unit I during AOH 2023 24
MTPS I TM Unit I Overhauling of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines in Unit I during AOH 2023 24
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. Reassembling the valve with new gland packing rings and bonnet gaskets without any leak. Checking the Actuator thrust base bearing and apply lubrication.
14
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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. Reassembling the valve with new gland packing rings and bonnet gaskets without any leak. Checking the Actuator thrust base bearing and apply lubrication.
17
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Overhauling of GV 65 / 300 class, 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, bearing, yoke bush etc., Lapping the 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”x4”, 2.5”/2.5” /150, 300 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
6
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Overhauling of GLV 1" / 800, 1500, 2500 class HO/MO.
Dismantling the valve, cleaning all the parts, checking the seating surfaces and actuator bearings. Lapping the gate / seat /flap for perfect blue matching, Re-assembling the
valve with new bonnet gaskets and gland packings.
25
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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 –1 and attending to cracks & welding joint leak inside the Flash Tank No.1 a) Cutting the man hole (500 x 600 mm) in the Flash Tank – 1 for easy access to inspect the inner side of FT-1 .
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b) Cleaning the Flash Tank- 1&2 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&2.
1
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Changing the eroded pipe HPH-5, 6 & 7 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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Cleaning and painting:- Cleaning and painting of Cooling water and Auxiliary cooling water lines in Turbine area.
100
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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 3mm gasket for Heater drip, Auxiliary Steam and Condensate Air line valves. (19 kg = 1 sheet)
19
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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 drip, Auxiliary Steam ,Condensate Air and Auxiliary Cooling water line valves. (19 kg = 1 sheet)
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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 Heater drip, Auxiliary Steam , Condensate Air 1” HO/MO drain line valves.
100
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Enamel paint
20
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Cost of welding electrodes For Item Sl.No.11 (SA 106 Gr B – (7x60) Nos.)
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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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Consumables and T& P Charges for Item Sl.No: 1 to 13
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