Overhauling of Secondary Air Dampers Scanner Air Fans and its damper flap gate Reconditioning of damaged wind Box compartment dampers guide plates insulation etc
TNEB Limited · Mettur Dam · Computers & IT Hardware · open
Key facts
- EMD: ₹9K
- Published: 29 Sep 2026
- Closing date: 13 Oct 2026
- Status: open
- Office: TANGEDCO
Description
Overhauling and reconditioning work for boiler pressure parts at Mettur Thermal Power Station-I, including damper rectification, insulation removal and refixing, wind box cleaning, fan overhaul, flap gate inspection, refractory removal and replacement, expansion joint reconditioning, and insulation work.
Eligibility & requirements
- Startup relaxation: No
- MSE relaxation: No
New to these terms? Read how tender eligibility criteria work.
Commercial terms
- Bid type: Open Tender
- Make in India (MII): No
- MSE preference: No
Line items (22)
- Rectification of defects in Secondary Air Dampers and cleaning of wind box — Qty: 4 Corners
- Removal of insulation from top & bottom of the wind box and refixing after completion of rectification works — Qty: 150 m2
- Charges for cleaning the accumulated ash deposits over the Wind box Top left & Right side. Inspection, rectification of eroded portions in wind box and assisting for air leak test. Charges for inspection and marking the flue gas/hot air leakage point in wind box and rear arch room area. — Qty: 2 Side
- Charges for removing the eroded portions in wind box and welding with new plates inclusive of transportation, lead and lift, scaffolding arrangements, etc — Qty: 2 Side
- Charges for dismantling of A.C/ D.C scanner air fan end cover plate, motor, impeller etc overhaul works and assembling the same fan and normalizing — Qty: 2 Nos.
- Charges for dismantling and inspection of delivery side flap gate of scanner air fan for free operation and rectification defects if any and reassembling the same with new gasket — Qty: 1 No.
- Over hauling of suction and delivery air dampers of scanner air fan by dismantling, cleaning, inspecting of operation and replacing the flange gasket. — Qty: 2 Nos.
- Overhauling of emergency air damper of scanner air fan system by dismantling, cleaning, inspecting of power cylinder operation — Qty: 1 No.
- Charges for leading, lifting and arranging platform and scaffolding wherever required in the boiler and dismantling after completion of work. — Qty: 1 Time
- Charges for fabrication of new air damper, by sizing, bending of BMC 20 plate of 8/6mm thickness, 1” CS tube sizing, hinge plates, link plate, arresting plate etc., drilling and welding the arresting plate, hinge plate suitably as per the released sample. Required BMC 20 plate will be supplied by board at free of cost. — Qty: 5 Sets
- Charges for cutting, removal of worn out air dampers fixed & moving blades, shaft, preparing air compartment plates, shaft and damper blades, welding shaft with moving blade and making proper alignment and checking for free operation. — Qty: 5 Sets
- Dismantling the existing floor Grills:Charges for cutting tag weldment of floor Grills, dismantling, leading, lifting and stacking on the aside of the floor at 24 m elevation. — Qty: 26 m2
- Refixing of the released Floor GrillsLeading lifting of grills from the same floor erecting at 24 m level. — Qty: 26 m2
- Charges for transporting the refractory from store and unloading at site, leading, lifting, stacking at 7m to 52m and removing the waste refractory from boiler lowering to the ground floor, loading to tipper and disposing at waste disposal area of MTPS-I — Qty: 1500 Kgs
- Charges for chipping removal of old defective refractory, cleaning, surface preparation, mixing the refractory with water, application and curing the patch worked refractory in Boiler at various elevation — Qty: 1500 Kgs
- Charges for renewal/reconditioning of metallic expansion joints. Work involves arresting the upstream and downstream of the windbox, cutting and removal of existing and eroded metallic expansion joints and gauging leading, lifting, positioning of new expansion joints aligning with the windbox and complete welding — Qty: 18 mtrs
- SUPER CASTABLE REFRACTORYACE Fire crete (super)/ TATA refractories Service temp 1450 0 C Al2 O3 -70% ,Fe2 O3 -2.5 to 5% Si O2 -11.5% Dry density minimum 2500 kg/m3 Grain size – maximum 5 mm CCS/kg/cm2 at service temp 1450oc - 350 kg/cm2 with material/ manufacturer's test certificate — Qty: 1500 Kgs
- Insulation wool mattresses Cost of 60mm Thick, Density 150 kg per metre cubic and GI sheet of 0.63mm thick, GI sheet- galvanizing coating, class-VIII as per IS-277, G.I casing support - as per IS 14164 — Qty: 150 m2
- Skin casing fixing screws — Qty: 350 Nos.
- Cutting gas — Qty: 1 Set
1 tender document(s) available — sign up to download.
Related tenders
- Laptop — Computers & IT Hardware · Kerala
- Laptops (M5 Chip, 16 GB RAM, 256 GB SSD, 13.3 Inch — Computers & IT Hardware · Madhya Pradesh
- All in One PC (V2), A4 and Legal Size Multifunction Printer (MFP) — Computers & IT Hardware · Madhya Pradesh · ₹4.0L
- SNAPDRAGON LAPTOP, OXYGEN OS MOBILE, LAPTOP ADAPTER, LAPTOP BAG, MOBILE CHARGER 80W — Computers & IT Hardware · Rajasthan
- Procurement of Computer Hardware and Accessories for Indian Army — Computers & IT Hardware · Rajasthan
- High End Laptop - Notebook — Computers & IT Hardware · Karnataka · ₹62.5L
- High End Desktop Computer and Multifunction Printer (MFP) Tender — Computers & IT Hardware · Madhya Pradesh · ₹10.0L
- High End Desktop Computer — Computers & IT Hardware · Odisha · ₹3.5L