Labour Contract For KCP Boiler Main Bank Tubes Damaged Length 2 Mtr Renewal Work With IBR Approved

Labour Contract For KCP Boiler Main Bank Tubes Damaged Length 2 Mtr Renewal Work With IBR Approved 1.Dismantling of damaged KCP Boiler Main Bank Tubes damaged portion from bottom drum to 2 mtr height with profile bend as identified the Boiler Engineer. Approximately –a) 20 Nos of pluged tube full length 8 Mtr, b) 150 Nos damaged tubes 2 Mtr height from bottom drum. 2. Damaged old tubes are to be handed over to scrap yard through store after weighment as per the Engineers instructions. 3. Before fixing of new tube bottom drum tube holes to be corrected with butling and other end tube making grinding for joining of tubes . 4. Size of the Tube 82.5mm OD x 3.66mm thick x 7.0 to 8.0 Mtrs Length approx. given by the mills. 5. New tube should be fabricated as per our drawing profile drawing No: TRT/BL/011(B) with above mention size replacement only. 6. Fixing of new fabricated tube in position with one end expended in bottom drum and other end to be welded in existing tube – 150 Nos and 20 Nos of new tube fixing in one end connecting in bottom drum other end connected in top drum by expanding. 7. Neccessry refractory tiles clamping fixing bolt to be provided by the contractor ( Clamp and bolt given by the mills). 8. Necessary fabrication drawing should be prepared by the contractor and got approved by Dy. Director of Boiler Chennai circle. 9. After erection of the tubes the boiler hydraulic test as to be contractor if presence of Deputy Director of Boiler.