Tamil Nadu Generation And Distribution Corporation Limited-TANGEDCO has published Tender For Superficial Cleaning And Daily Routine Maintenance Of Main Turbine. Submission Date for this Tender is 08-01-2024. Desilting Tenders in Thiruvallur Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Charges for Superficial cleaningofMain turbine and its turbine auxiliaries and day to day minor preventive maintenance works including of Central Lub oil purification system, MAW & MAL valves, CRH and Extraction NRVs, Vacuum Breaker system and OVEF, connected lines, etc., Free from oil, dust etc., and attending minor oil leaks, drawal/devolution of oil barrels form stores to MOT for topping up of oil, shaft lift checking and hand barring operation to bring the set on turning gear and checking N2 in Accumulators ofcontrol fluid system,HP BP & LP BP system etc., |
| 2 | Charges for MOT Duplex filters cleaning work involves draining of oil from MOT lub oil duplex filter cartridge, removal of the top cover, lifting 5 nos. filter elements, cleaning the element with diesel, air washing and putting back the filter elements into the cartridge, closing and tightening the top cover with bolts and ensuring no oil leakage. |
| 3 | Charges for Control fluid regenerative system Filter"s cleaning / replacement work involves draining of oil from CF regeneration unit Pre, Post & Earth fuller filter cartridges completely, removal of the top cover, Lifting all filter elements, replacing/ cleaning the element by air washing and putting back the filter elements into the cartridge, closing and tightening the top covers with bolts ensuring no oil leakage |
| 4 | Charges for MOT Centrifuges cleaningwork involves draining of oil from the centrifuge, Opening the top cover, removal of Bowl and stacks, cleaning them by diesel, air washing assemblingback the same in sequence and periodical maintenance if any and normalization ensuring no oil leakage. |
| 5 | Charges for Inspection and Cleaning of protection rack plate type filters in Main Turbine Governing system work involves draining of oil, inspection, cleaning the filter, renewal of "O" ringsand reassembling the same |
| 6 | Charges for Inspection and Cleaning of HPCV/IPCV Pilot valves in Main Turbine Governing system work involves Isolate the control valve oil lines, removal of control valve pilot assembly top & side covers after loosening of all bolts, removal of pilot valve & liner assembly from the control valve, cleaning of all components including bearing by using petrol and air, checking necessary clearances of pilots with liners, replacement of worn out spares if any, reassemble back of all components with proper sequence, placing & tightening the pilot assembly top & side covers, opening of control valve oil lines |
| 7 | Charges for welding joint works for 1" Dia pipe by cutting of old damaged parts of high pressure steam line pipes, valves, and bends; edge preparation, fltting and re-welding with new/old pipes or new/old valves and fittings by IBR certified welder. This includes the cost of special welding electrodes, filler rods, all kinds of consumables required for the works. Charges including the cost of consumables and hire charges for T&Ps |
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