NCTPS I SE MI circle Mill Plant Maintenance Division Annual Overhaul work for the year 26 27 Specification No 107 26 27

Charges for providing scaffolding for Dismantling for painting of renewal of new spray header pipeline and GI spray pipelines with spray nozzle and end cap dia 40mm, length 2960mm U clamp 50mm total quantity 116 Nos and its supporting structures in air washer ventilation system including T&P’s and consumables etc.

Charges for dismantling the existing GI Spray pipe with spray nozzles and end cap dia 40 mm, length 2960 mm, Total quantity 116 Nos. from the couplings of the water header pipes in water chamber of air washer units located at 10.5 Mtrs. floor by cutting / Unscrewing the pipes, Devoluting the scrap pipes after removing the spray nozzles to scrap stores as per the direction of Engineer in charge. (The Rates including the cutting gas, T&P’s hire charges, Scaffolding arrangements and all other consumables under contractor scope.)

Charges for loading and transporting the GI Spray pipe with spray nozzles and end cap dia 40mm, length 2960mm U clamp 50mm total quantity 150 Nos from store to repair bay, unloading, lifting and keeping at air washer Unit-I located at 10.5mtrs. floor as per the direction of Engineer in charge (the T&Ps hire charges and all other consumables under contractor support .

Looking the hanger and supports, supporting the MS pipe by providing channel and beam as per the direction of Engineer in charge. (the rates including the cutting gas, T&P’s hire charge, scaffolding arrangements and all other consumable under contractor scope).

Dismantling the existing severely corroded and damaged 200NB Spray Header pipe, routing through the brick wall masonry by providing suitable scaffolding at elevation above 9 meter, cutting, erecting and welding suitably with new retrieved pipe of same type and covering the wall opening; water leak checking, commissioning and painting, (The Rates including the cutting gas, T&P’s hire charges, Scaffolding arrangements and all other consumables under contractor scope)

Charges for Labour charges for proving of 116 Nos hole (Dia 40mm) and welding the 116 nos GI coupler in the header pipe in all three units as per the direction of Engineer in charge. (The Rates including the cutting gas, T&P’s hire charges, Scaffolding arrangements and all other consumables under contractor scope)

Charges for fabrication of 40mm GI Coupler by cutting and providing threading. Rates including the cutting gas, T&P’s hire charges, and all other consumables under contractor scope.)

Charge for fixing the G.I Spray Pipe With Spray Nozzles and end cap dia 40mm, length 2960mm total qty.116 Nos. after cleaning the female thread and providing the thread in the couplings Size 40mm dia X 50mm length by using die & tap set if required, tightening the spray pipe proper positioning of the spray nozzles, charging of water arresting of water leaks if any in the coupling and end cap of the spray pipe at air washer Units located at 10.5mtr floor as per the direction of engineer in charge.[ the rates including all consumables like teflon tape, T&P’s hire charge scaffolding arrangement etc, under contractor's Scope]

Charges for re fixing of suction & discharges pipes with bends after dismantling dummy plates, re-welding circulation water pump and sump drain pipes (100mm MS ERW pipe) and reinsulated the chiller & pipes by expanded polystyrene wool or insulation wool with mesh and plastering with cement as per the direction of Engineer-in-charge.

Charges for cleaning and painting of one coat red oxide and two coat enamel paint in renewal of new erected spray header pipelines and GI spray pipes with spray nozzles and end cap dia 40mm, length 2960mm U clamp 50mm total quantity 116 Nos and its supporting structures including T&P’s and consumables etc.