NCTPS I SE MI circle Boiler Maintenance Division Annual Overhaul works for the year 24 25 Specification No 215 24 25

Amount

Supply of insulation with cladding materials for flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area: Insulation material for 1 Sq.M: 1) Insulation Wool of - 60 mm thick, Density: 150 Kg / M³ as per: 8183:1993 2) G.I. Sheet - 0.63 mm Thick of Galvanizing coating 120 gm / M², Class VIII as per IS 277: 5.12 Kg / M² 3) M.S Pin size 6 mm dia X 225 mm : 09 Nos / M² 4) Retainer: 70 x 70 x 2 mm : 09 Nos / M² 5) GI casing support of size: 65 x 650 mm: 03 Nos / M² including P&F, F&I, Unloading charges.

Supply of MS 6 mm Rod for providing Mesh to fix outside on top of the duct to lay the insulation. Size: 100 mm X 100 mm X 6 mm, Material : IS 2062

Providing scaffolding for insulation work: Involves making scaffolding for insulation work in flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area and dismantling the same after completion of work. Including hire charges for scaffolding pipes, consumables and T&P’s.

Removal of insulation & cladding sheet: Work involves Complete removal of insulated cladding sheet, insulated wool, gas cutting and removal of retainers and casing support etc in flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area. Devoluting the scrap material to the stores other than wool including consumable & T&P's.

Erection of fabricated MS Mesh for fixing outside on top of the duct to lay the insulation. Size: 100 mm X 100 mm X 6 mm, including consumables and T&P’s.

Laying of Wool: Work involves complete cleaning, welding of pin: 09 Nos, laying of wool mattress, welding of retainers: 09 Nos, sewing the joint of mattress by GI wire, screwing the casing support:03 Nos with retainer, wounding the GI binding wire across the retainer including rectification of damaged insulation sheet flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area: Work involves fixing of new / retrieved GI / corrugated sheet over the insulation, including cost of self tap screw, sealing compound, transportation charges, hire charges of vehicle, consumables and T&P’s etc.,. The retrieved / damaged insulation sheet will be devoluted to stores.

Fixing of GI / Corrugated sheet: Rectification / renewal of damaged Insulation sheet in flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area. Work involves fixing of new / retrieved GI / Corrugated sheet over the insulation, including cost of self tap screw, sealing compound, consumables and T&P’s etc., and transportation charges.

Clearing of released insulation wool from the works spot in flue gas duct from ID fan outlet common duct middle Expansion Joint and horizontal guide vane area: Work involves collection of released waste wool, debris and other unwanted insulation materials from the work spot, gathered in one place and clear, transport for away from the site as per the instruction of Engineer in-charge, including vehicle hire charges, consumable & T&P’s etc.,

Charges for complete cleaning the surface painting with one coat of Aluminium paint above cladding sheets (Both side) including cost of painting materials and all consumables & T&P’s.

RKL ENTERPRISES (BID ID -1198343)