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
₹ 8,100Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
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Contact
Tender Id
2023_EB_310754_1Bid Award Id
ViewTender No
CE / MTPS-I / SE / M-I / TM / OT. 90 /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 Renewal of Gasket at water box side tube nest side condensate inlet and outlet flange inspection and cleaning of tube nest and hydraulic testing of LPH 3 and 4 GC 1 Ejector 1A Vent condenser and allied works
MTPS I TM Unit I Renewal of Gasket at water box side tube nest side condensate inlet and outlet flange inspection and cleaning of tube nest and hydraulic testing of LPH 3 and 4 GC 1 Ejector 1A Vent condenser and allied works
MTPS I TM Unit I Renewal of Gasket at water box side tube nest side condensate inlet and outlet flange inspection and cleaning of tube nest and hydraulic testing of LPH 3 and 4 GC 1 Ejector 1A Vent condenser and allied works
BOQ Items
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d) Providing new gaskets for the tube nest and placing the tube nest inside the shell.
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e) Cleaning and checking of drip line Header Nozzle holes, Checking the tube nest for leak if any plugging of all punctured tubes, placing the water box on the tube nest and tightening of main flange, Condensate inlet and outlet flanges after providing new gaskets.
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Overhauling and Gasket renewal of Gland Cooler -1 a) Removal of Water box, flange bolts and nuts, Condensate inlet and outlet flanges, lifting the water box, placing it on the floor and cleaning of all flange surfaces.
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b) Lifting of tube nest, Placing it on the floor, inspection, cleaning of tube nest and hydraulic testing etc.
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c) Providing new gasket, for the tube nest and placing the tube nest inside the shell
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d) Placing the water box on the tube nest and tightening the main flange, Condensate inlet and outlet flanges after providing new gasket
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Renewal of Feed water tank manual gaskets, HP Heaters, Drip lines, and BFP Re-circulation lines flange gasket at Deaerator end cleaning inside the feed water tank including consumables.
a) Opening of manhole cover of feed water storage tank both sides and gasket preparation for the manhole.
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Charges for Overhauling of feed water tank, including interior painting work excluding cost of paint.
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c) Changing of gaskets in HP Heaters drip line flanges and BFP's Re-circulation line flange at Deaerator.
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d) Assembling of manhole covers with new gaskets after cleaning the old gaskets
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Overhauling and Hydraulic testing and Re-assembling of Safety valve size 6”/8”/40/64 ATA Removing the safety Relief valve size 6”, 8” / 40, 64 ATA, Disassembling the Safety Relief Valve, cleaning all the parts of the SRV, checking the seating surfaces and Lapping the seat and disc for perfect blue matching. Setting the pressure for rated lifting the SRV with hydraulic pump. Reassembling the SRV with new inlet and outlet flange gaskets.
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Overhauling Hydraulic test and Re- assembling of Safety valve of size 4”/2”/ 300 class. Removing the safety Relief valve Size 4’’, 2.5’’/ 339 Class from LP Heater, Gland cooler-I & Flange & Stud heating system Disassembling the Safety Relief Valve, cleaning all the parts of the SRV, checking the seating surfaces and Lapping the seat and disc for perfect blue matching. Setting the pressure for rated lifting the SRV with hydraulic pump. Reassembling the SRV with new inlet and outlet flange gaskets..
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Inspection and Gasket Renewal of Main Ejector
Disconnecting of all the steam pipe lines air lines and dismantling the nozzle box, Ejector shell, tube nest etc cleaning the tubes, water box, attending the tube puncture, setting and checking the nozzle gap, hydraulic testing of the tubes and assembling the ejector shell, tube nest, nozzle box, providing with new gasket connecting all the related pipe lines and overhauling of exit NRV and flow meter in main ejector as per direction of the Engineer in charge. (Ejector-1A)
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Dismantling the Vent Condenser, water box and connected pipe lines, cleaning the water box tube nest flanges and connected pipe line flanges and renewal of gaskets, inspecting the tube nest for leak. Removing studs and nuts in the vent condenser main flange, condensate inlet and outlet pipe line and placing it on the platform. Removing water box, cleaning water box and shell flanges
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Taking out the Vent condenser Tube Nest from the Vent Condenser Shell and tilting the tube nest for 180 degrees
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Positioning the tube nest inside the shell and assembling of water box and all connected pipe lines after providing gaskets and tightening of all flanges stud and nut etc.
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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 Airline valves.
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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.
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Enamel paint
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Cost of ferrule for inserting inlet side water entry point of vent condenser tube nest to avoid tube erosion. Ferrule SS-304, Tube Size: Outer Dia -19.05 mm, Inner Dia 16.63.mm, Ferrule Thickness :0.5mm
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Consumables and T & P Charges for Item Sl.No: 1 to 19
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Evaluation Notes How It Works ?
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