Tamil Nadu Generation And Distribution Corporation Limited-TANGEDCO has published Tender For Providing Additional Air Diffusers And Return Air Grills In Air - Conditioning Main Air Duct And Fabrication And Erection Of New Duct Connectedwithexisting Mainairductforfsssdcsroominunit-Ii And Generator Relay Panel In Unit-Ii & Unit-Iii , Rem. Submission Date for this Tender is 28-11-2023. Air Diffuser Tenders in mettur Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Charges for fabrication of air duct using 1mm GI Sheet of size0.9mx0.8mfor providing new air diffusers and return air grills in air-conditioning main air duct for FSSS DCSroom in Unit-II and Generator relay panel in Unit-II & Unit-III (1 mm thick GI Sheet will be contractor scope). This work involves Sheet cutting, bending, folding’s, drilling holes in the flanges. |
| 2 | Charges for fabrication of spool piece for fixing Supply air diffuser size dia. 580mm in newly providing ducts. |
| 3 | Charges for dismantling the perforated particle board ceiling carefullyfor reuse the same location,removing the main duct insulation including lead lift etc., complete. |
| 4 | Charges foropening the bottom portion of themain duct for connect the down comer spool piece with aluminumbeading for fixing the diffuser between the main duct and the perforatedparticle board false ceiling. |
| 5 | Charges for erection the newly fabricated duct with necessary fastening arrangement to connect with already existing main duct for FSSS DCSroom in Unit-II and Generator relay panel in Unit-II & Unit-III in appropriate manner. |
| 6 | Charges for fixing Supply air diffuser size dia. 580mm directly in the down comer spool piece with aluminumbeading for fixing the diffuser between the main duct and the perforatedparticle board false ceiling for conditioning air circulation to desired space in the appropriate manner. |
| 7 | Charges for removing diffusers and providing dummy in the existing main air duct and supporting the ‘with angle size 35 x 35 x 5 mm of length two metre on the existing structure to support with MS rod 8mm & anchor bolt 10 mm as required in the newly providing ducts.( M.S Angle, rod will be contractor scope). |
| 8 | Charges for insulation of supply air duct with 50mmthermo coleslabafter applying coal tar paint or bituminous compound over entire area of new fabricated duct and then surrounded with aluminum foilsheet . (thermocoleslab ,bituminous compound/ coal tar paint aluminum foilsheetwill be contractor scope |
| 9 | Re-fixingthe existing perforated particle boardas fall ceiling with anodized aluminumgrid dismantled from Unit control Board room –II & III lead lift etc., complete |
| 10 | Charges for removing the damaged wool matters,and hessian cloth insulation in theceiling roof of the service building AHU room and arresting good condition roof insulation with fasteners byproviding scaffolding arrangements |
| 11 | 1 mm GI Sheet |
| 12 | Air diffuser |
| 13 | MS Angle 35 x 35 x 5 mm(31 Kg) & MS Civil rod 8 mm(10 Kg) |
| 14 | 50mm Thick thermo cole |
| 15 | Aluminum foil sheet (0.2mm thick) |
| 16 | 3/8” x 1” coach screw for connecting flanges |
| 17 | 3mm Asbestos rope |
| 18 | Coal tar paint |
| 19 | Charges for consumables and T & Ps |
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