Tamil Nadu Generation And Distribution Corporation Limited-TANGEDCO has published Tender For Nctps Ii - Chp & Fp Division - Project Sub Division -Unit 2 - Dismantling The Existing De System -2 Inoperative Equipments Viz Blower, Blower Motor, Flow Control & Suction Control Dampers , Flow Control Valve , Etc, And Servicing The Inoperativ. Submission Date for this Tender is 22-05-2023. Control Valves Tenders in Thiruvallur Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Material Portion: |
| 2 | Bag Filters with bagretaining cages |
| 3 | Solenoid valve & diaphragm valves with other accessories like Rubber beading, Rubber hose |
| 4 | Rubber Bellow 650 dia. |
| 5 | supply, Installation , testing and commissioning of Sequential timer board for Dust extraction system. |
| 6 | 100NB MS ERW pipe |
| 7 | MS Flange - 100 NB |
| 8 | MS Elbow - 100 NB |
| 9 | Butterfly valve - 100 NB |
| 10 | Labour Portion |
| 11 | Charges for overhauling thecentrifugal fan, strengthening the base frame with required Materials and servicing the fan - Dismantling the flexible connections at suction & discharge of the fan - loosening the fixing bolt and taken out the fan impeller assembly – loosening the foundation bolt & nuts and removing the worn out base frame from the foundation- including cost of consumables , hire charges and T&P’s and transportation |
| 12 | Dismantling the belt pulley using pullers-Dismantling the suction and housing dismantling the top cover and removing the worn out bearings - removing the fan with shaft complete cleaning and inspection - patch up welding the eroded portion suction cone, fan housing, fan frame and grinding the eroded surface including cost of consumables and T&Ps. |
| 13 | Assembling the fan: assembling the shaft with fan in the with new bearings reassembling the fan housing and suction cone with new bolt nut and gasket– painting the fan - including cost of bolt nut & gaskets, paints andincluding cost of consumables , hire charges and T&P’s |
| 14 | Charge for Providing new ‘V’ belts - aligning the motor with fan and tightening - applying grease in wherever required- including cost of ‘V’ belts, grease andincluding cost of consumables , hire charges and T&P’s |
| 15 | Fabrication and fixing of new belt guard & motor hood and fixing - servicing the fan with no load and then with load - including cost of materials, consumables and hire charges for T&P’s etc. |
| 16 | Inspection of all dust pipe lines , dismantling andcomplete cleaning the inner portion of the dust extraction pipe lines, removal of collected dust from the pipe line and then assemble in its positions including cost of consumables , hire charges and T&P’s |
| 17 | Complete overhauling of DE System Work involves opening of all the inspection doors, hoppers and top casing covers, inspection and checking the tightness of filter bag bottom, cage, cleaning the contamination fouling, inspection and cleaning, checking the seals in clean gas casings coverschamber. fixingof compressed air line pipes and fitting by threading, applying sealing compound and connect to integral diaphragm valve assemblyincluding cost of consumableslike differential Pressure gauge and T&P’s hire charges. |
| 18 | Charges for fixing new bag filter with cages, venture nozzles ,Servicing the dampers, air nozzles, RAV motor, electrical controls , incoming panelsand other jammed internals including cost of consumables like gaskets, seals , solid state timer, hire charges and T&P’s |
| 19 | Charges for dismantling the existing damaged / Worn out structure as directed by Engineer in charge including transportation and devolution the scrap to stores. |
| 20 | Charges for leading , lifting and transportation of iron and steel materials from "o" mtr to DE system at 70 mtr elevation(Structural material will be supplied by TANGEDCO at free of cost) |
| 21 | Fabrication and erection of walk way for Dust Extraction system at 70 mtr elevationfrom Right side Unit 1 Boiler floor to DE system including cost of consumables and T&P,s (Structural material will be supplied by TANGEDCO at free of cost) |
| 22 | Installation of Dust Extraction system Air receiver tank (capacity 100 Litre)at 70 Mtr elevation: This work involves leading , lifting and positioning of air receiver tank @ 70 mtr elevation and welding of connected pipe lines ,etc., including cost of consumables and T& P’s ( Air receiver tank will be supplied by TANGEDCO) |
| 23 | Charges for Erection of 100 Nb GI pipe line from ground level to 70 Mtr elevation :This work involves Marking, cutting the pipes to the required length ,leading andlifting the pipes to the work spot and erection of 40 NB GI Pipes from Compressor room to DE system at 70 Mtr elevation , Including cost of transportation ,painting of red oxide paint, cost of consumables and T@Ps ,hire charges, etc.,( Required 40 Nb pipe will be supplied by TANGEDCO @ free of cost .) |
| 24 | Charges for cleaning & painting of DE system and their structures, stairs / ladders. Each one coat of red oxide primerand two coats of Epoxy paintincluding paint material cost ,cost of consumables , hire charges and T&P’s . |
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