Tamil Nadu Transmission Corporation Limited-TANTRANSCO has published Nctps – I - Se/Mi Circle – Aoh (23-24) - Bm Dn. – Unit Ii – Conducting Tube Thickness Survey In 1St Pass, Inter Pass, Overhauling Of Ignitor, Scanner Air Fan System, Boiler Drum Overhauling And Renewal Defective Tubes & Drain Lines And Other Allied Works . Submission Date for this Tender is 12-07-2023. Sewerage Construction Tenders in Thiruvallur Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Charges for buffing water wall tubes for tube thickness survey, including consumable and hire charges for T&P"s. |
| 2 | Charges for conducting tube thickness survey at Water wall "S" panel by engaging certified agency and Reporting, including for ultrasonic thickness gauge, consumable andhire charges for T&P"s. |
| 3 | Charges for renewal of defective boiler tubes of size 63.5x5.5 (above 44.5mm OD inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder and assisting for hydraulic test, including consumable andhire charges for T&P"s. |
| 4 | Charges for fin welding: Charges for fin welding by cleaning, surface preparation and welding, including consumable and hire charges for T&P"s. |
| 5 | DRUM OVERHAULING: Charges for opening the drum manhole doors, cleaning & inspection of drum internals, flushing of phosphate dosing line by cutting and welding, cleaning and inspection of screen dryers, and providing new gasket for manhole doors, including consumable and hire charges for T&P"s. |
| 6 | Checking of weld cracks in separation chamber and welding the cracks with IBR welder, including consumable and hire charges for T&P"s. |
| 7 | Dismantling the turbo separator for cleaning and refixing in position, including consumable and hire charges for T&P"s. |
| 8 | Charges for rectification of Boiler drum separators by reconditioning erosion/ crack, alignment of fins and replacing worn out mounting fasteners, including consumable and hire charges for T&P"s. |
| 9 | Charges for cutting, edge preparation and welding of 1” pipe line, tee elbows, bends in Boiler pressure parts by IBR welder etc. at joints, including consumable and hire charges for T&P"s. |
| 10 | Charges for leading, lifting and arranging platform and scaffolding wherever required in the boiler and dismantling after completion of work, including consumable and hire charges for T&P"s. |
| 11 | Charges for renewal of defective boiler tubes of size 44.5mm OD inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder and assisting for hydraulic test including consumable and hire charges for T&P"s. |
| 12 | ARC FILLING i) Grinding of Boiler tubes for Arc filling of size 150 x 25 M² area for 3 Layers. Charges including consumable and hire charges for T&P"s. |
| 13 | Charges for dismantling of Scanner air and Ignitor air fan end cover plate, motor, impeller etc overhaul works and assembling the same fan and normalizing, including consumable and hire charges for T&P"s. |
| 14 | Charges for dismantling and inspection of delivery side flap gate of scanner air fan/ Ignitor air fan for free operation and rectification defects for free operation and rectification defects if any and reassembling the same with new gasket, including consumable andhire charges for T&P"s. |
| 15 | Overhauling of suction and delivery air dampers of scanner air fan by dismantling, cleaning, inspecting of operation, and replacing the flange gasket. Charges including consumable and hire charges for T&P"s. |
| 16 | Overhauling of emergency air damper of scanner air fan system by dismantling, cleaning, inspecting of power cylinder operation. Charges including consumable and hire charges for T&P"s. |
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