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 Date15 Mar 2025
Closing Date20 Mar 2025
Tender AmountRefer Documents
Costs
EMD
₹ 28,700Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Nctps Ii M I Circle Ca Cwps 2c To 2f Carrying Out Daily And Periodical Maintenance Works In The Cooling Water Pumps
Description
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Contact
Tender Id
2025_EB_532897_1Tender No
CE NCTPS II SE M I O M 304 2024 25Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
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Documents
NCTPS II M I Circle CA CWPs 2C to 2F Carrying out daily and periodical maintenance works in the cooling water pumps
BOQ Items
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Charges for carrying out the maintenance work in 50 NB SS gland water drain line/20 NB SS sea water cooling linlet & outlet pipelines of beairng housing in cooling water pump by complete dismantling of SS lines , through cleaning & ensuring the free flow of cooling (sea water) water in the pipeline and refixing intact in position with out any leakages. As per the direction of the site incharge, including cost of consumables and T&P's hire charges.
48
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Charges for carrying out the maintenance work in 200 NB ARV in the cooling water pump discharge line and GRP inlet & out let line at various location. As per the direction of the site incharge, including cost of consumables and T&P's hire charges.
24
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Charges for dismantling and inspection of cooling water pump coupling assembly, checking the aligment of the motor and pump, reassembling the coupling with pump including the cost of aligment, cost of consumables and hire charges for T & P 's.
4
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Charges for inspection of discharge valve seal seating area and retainer ring in discharge valve and adjusting/renewal of worn out discharge valve seals(1800mm dia) of the cooling water pumps by opening the man hole door along with the air release valve, reassembling the same in position as per the direction of the site incharge, including cost of consumables and T&Ps hire charges.
2
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Charges for lubricating the discharge valve actuator assembly of cooling water pump as per the direction of the site incharge including cost of consumables and T &P's hire charges.
12
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Charges for attending any defects/ rectification work by dismantling of travelling water screens two segment of top fiber covers, two side fiber cover with glass window door for inspection of defective spray including cost of consumables & hire charges for T & P's etc.
12
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Charges for dismantling of defective/ wornout Spray Nozzles with 'U' clamps by cutting and replacing with new one/ rectified spray nozzle and cleaning of spray header by flushing and removing the end cap including cost of consumables & hire charges for T & P's etc.,
24
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Charges for dismantling of wornout/defective anodes in screen trays by cutting and welding, replacing with new anodes in its position by drilling sutaibly in the tray including cost of consumables & hire charges for T&P's etc.,
6
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Charges for dismantling the flange joints bolts and nuts in the 200 NB HDPE header pipeline and isolating the system for attending the damaged/puncture portion in header lines of flushing pumps connected with travellling water screens including cost of consumables & hire charges for T&P's etc.,
6
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Charges for dismantling the flange joints bolts and nuts in the 80NB HDPE pipeline and isolating the system for attending the damaged/puncture portion in 80NB HDPE pipe line connected with travellling water screen including cost of consumables & hire charges for T & P's etc.,
6
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Charges for greasing the travelling water screens chain link pin on DE & NDE sides by rotating the travelling water screen one by one and lubricating by greasing the tap screw, capstan nut,bearing housing,gear box and flushing pumps including cost of consumables & hire charges for T&P's etc.,
24
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Charges for plasma cutting and edge preparation of 80 NB S.S pipe including cost of consumables & hire charges for T & P's etc.,
5
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Charges for S.S.welding of one full circle joint in 80 NB SS pipe including cost of consumables & hire charges for T&P's etc.,
5
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Charges for plasma cutting and edge preparation of 150 NB S.S pipe including cost of consumables & hire charges for T&P's etc.,
5
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Charges for S.S. welding of one full circle joint in 150 NB SS pipe including cost of consumables & hire charges for T&P's etc.,
5
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Charges for removing the suction & discharge pipelines,de-coupling the pump and motor, dismantling the bearing with bearing housing, column pipes,coupling,shafts,impeller,shaft sleeve etc.,and inspection of the pump internals in the 7 stage flush pump as direct by the site engineer including the cost of consumables,disposal of removed materials, scrapping tool,gloves,mask and T&P's hire charges etc.,
2
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Charges for re-assembling the pump internals, erecting the column pipes,pump, bearing housing, aligning,coupling with motor and connecting the suction & discharge pipelines in the 7 stage flush pump as direct by the site engineer including the cost of consumables, gasket sheet,disposal of removed materials, scrapping tool,gloves,mask and T&P's hire charges etc.,
2
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Charges for inspection of chain link roller,roller pin and roller seating area for wear & tear and rectify the old one/renewal with new one by carrying out the cutting and welding as directed by the site Engineer including the cost of consumables,T&P's hire charges etc.,
100
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Charges for cleaning,inspection and rectification/replacement of the sprocket wheel seating area with chain link roller by carrying out the cutting,welding at the necessary places for smooth function of travelling water screen baskets in order to collect the debris as directed by the site engineer including the cost of consumables and hire charges for T&P's etc.,
2
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Charges for cleaning the sleeve bearing in the driven end plumber block by dismantling the gear box from its position and supporting the sprocket wheel in apporiate position, removing the sleeve bearing housing from its position,cleaning the rust, old grease,foreign material,applying new grease,checking the clearenance between shaft & sleeve bearing and reassembling plumber block & gear box intact for smooth operation of travelling water screen as directed by the site engineer including the cost of consumables and hire charges for T&P's etc.,
2
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Charges for removing the flexible coupling, removing the stud & nuts from the motor stool & from the base plate and postioning in the aproachable place any where in pump house and re-fixing with minor rectification in postion after completion of inspection work in the CWP as directed by the site incharge including the cost of consumables and hire charges for T&P's etc.,
1
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Charges for removing the drive shaft side end coupling,removing the lock nut,cooling water inlet & outlet lines,dismantling thrust & journal bearing assembly, top cover with cooling fins,draining the oil from the thrust & journal bearing assembly,cleaning, inspection and checking the internals, seating the thrust & journal pads babbit material surface with the housing surface in the bearing assembly and carrying out the minor rectification work in the bearing assembly and re-fixing the thrust & journal bearing intact in position as per the direction of site incharge including the cost of consumables and hire charges for T& P's etc.,
1
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Charges for removing the motor base plate at 4 mtr level,removing the drive shaft,distance piece,muff couplings,head shaft,distance spool piece,discharge pipeline,discharge elbow,gland packing anti extrusion & lantern ring,thrust block stud & nuts,elements -V &IV and intermediate shaft- II with muff coupling, postioning in the aproachable place any where in pump house as directed by the site incharge including the cost of consumables and hire charges for T&P's etc.,
1
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Charges for cleaning,inspecting the wear & tear and checking the dimension of shaft sleeve in drive shaft, head shaft,intermediate shaft -II,gland packing seating area in discharge elbow,anti extrusion, lantern ring,inner dimension of the muff coupling,abutment rings and carrying out the minor rectification, strengthing the discharge elbow,thrust block and the radial bearing seating housing in the element -V & element-IV as directed by the site incharge including the cost of consumables and hire charges for T & P's etc.,
1
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Charges for re-fixing the intermediate shaft -II with muff coupling,elements-IV &V,head shaft with muff coupling,discharge elbow, distance spool piece discharge pipeline,gland packing, anti extrusion & lantern ring,distance piece, drive shaft with muff coupling and motor base plate at 4 mtr level intact in position.Checking the clearance between the shaft sleeve and radial bearing and ensuring the free rotation of shaft at each stage for smooth operation of pump as per the direction of site incharge including the cost of consumables,MS studs & nuts M 30x 170 mm and hire charges forT&P's etc.,
1
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Charges for cleaning the mollusks and removing the elements -III to II and intermediate shaft- I,postioning in the aproachable place any where in pump house, through cleaning of all the pump material removed,carrying out the through inspection & minor rectification of the internals and re-fixing the same intact and checking the clearance between the shaft sleeve and radial bearing and ensuring the free rotation of shaft at each stage for smooth operation of pump,as directed by the site incharge including the cost of consumables, lead, lift and hire charges for T & P's etc.,
1
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Charges for removing the element- I,pump casing,suction casing bell mouth,impeller casing,deflector plate,impeller lock nut,impeller and suction casing postioning in the aproachable place any where in pump house as directed by the site incharge including the cost of consumables,lead,lift and hire charges for T &P's etc.,
1
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Charges for cleaning, inspecting the wear & tear and checking the dimension of shaft sleeves in pump shaft,element I,pump casing, bearing housing, radial bearing, Impeller, impeller casing liner,impeller casing,deflector plate,impeller lock nut and suction casing bell mouth and carrying out the minor rectification, strengthing the element- I,pump casing, bearing housing and the radial bearing seating housing in the element- I & bearing housing, replacing if any as directed by the site incharge including the cost of consumables, lead, lift and hire charges for T&P's etc.,
1
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Charges for re-fixing the radial bearing with bearing housing in the pump casing,impeller in the pump shaft with locking the impeller lock nut, fixing the deflector plate, impeller liner with impeller casing, element- I and suction casing bell mouth intact in position.Checking the clearance between the shaft sleeve & radial bearing.Checking the total float of the impeller and ensuring the free rotation of shaft & impeller at each stage for smooth operation of pump as per the direction of site incharge including the cost of consumables,lead,lift and hire charges for T&P's etc.,
1
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Charges for machining the cooling water pump radial bearing inside diameter and suite the shaft sleeve suitably as per the direction of site incharge including the cost of consumables, lead,lift and hire charges for T&P's etc.,
6
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Charges for painting of 1 coat of zinc chromate/red oxide primer and 2 coats of coal tar epoxy/finish paint which includes cost of consumables such as paint,primer,thinner, brush,cotton waste etc.,lead,lift and T&P's as directed by the site incharge.
150
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Charges for dismantling of worn-out and damaged pump casing wear ring and assembling new wear ring and welding suitably in pump casing and checking clearance with pump casing & impeller of cooling water pump including cost of consumables and T &P's etc.,
1
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Charges for dynamic balaning of the all rotating parts ie.,impeller.The work involves loading and unloading of the pump rotating parts one by one in dynamic balancing machine and checking the rotating parts with 1000 rpm and removing/adding material by welding on to the impeller for correcting any imbalance including cost of consumables and T&P's etc.,
1
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Charges for fabricating and bending the10MM thick MS plate of size1500 MMX600 MM for cooling water pump dischargeline,leading,lifting and positioning the curved plate over the outer side of the discharge pipeline,2 runs of welding by using welding electrodes including cost of consumables and hire charges for T &P's etc.,
4
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Charges for overhauling of TWS gear box by removal of gear box assembly from its position,after draining the lubricant,dismantling ,cleaning,checking of all internals and chain link assembly,renewal/replacement of new/old rectified spares,replacement of worn out "O" rings,oil seals, reassembling, Lubricatng the chain link assembling ,topping up of gearbox lubricant and satisfactory commissioning including cost of consumables and T &P's etc.,
2
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Charges for reconditioning of damaged and wornout travel water screen main drive shaft by welding, machining and finishing the main drive shaft with the suitable material in bearing seating area and suite the sleeve bearing and housing with assembly for smooth operation of main drive shaft including cost of consumables and hire charges for T &P's etc.,
2
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Charges for rectifying the wornout & damaged travel water screen basket by marking, cutting and fixing the screen mesh in travel water screen basket suitably including cost of consumables and hire charges for T &P's etc.,
10
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