NIT No. 77/EE(BM-I)/2025-26

Repairing of 02 Nos. Cooling Tower installed at Terrace of Talkatora stadium (350TR) Building with following material PVC Fills 600x300x150mm

Drift eliminator 5’ Long

GI Pipe support 20’ Long

PVC branch pipe 63 mm sub header pipe 20’- long

PVC Splash Cups

PVC 40 mm Nozzles 20’ Long

PVC 63 mm End Cap

PVC Lock Spacer

Steel Screw (various sizes as per site requirement), Bolts 1½’’ (S.S), Nuts 1½ (S.S), Washer 1½’’(S.S), Fiber, Hardner, Accelerator L/s

Resin

Dismantling of existing FRP type Cooling Tower 350 TR capacity including dismantling of its Fan, Motor, fillings, sprinkler header, side panels, sump and water distributer etc. as required and fixing of all the aove items from S.No.1-15 in the tower with the help of skilled labour cartage etc complete including credit of all material and removing all the dismantled material from the site including transportation of dismantled credit material from site to dumping area

Providing and applying of 2 mm thick FRP coating for the 350 TR cooling tower base pan with suitable FRP ceiling compound to arrest water leakage including cleaning of pan with scrubber set. complete as reqd.

Supplying and Fabrication of base frame for 350 TR cooling tower size of 4 mtr (L) X 4 mtr (B), with an intermediate intersections of 50mm X50mmx6mm angle to be welded along by providing necessary all stainless steel nut bolt, rubber gasket, welding the joints in double layer continuous welding for proper strength etc as required at site, after dismantling of complete cooling tower and making good the base frame by dismantling the old existing base frame from the foundation without causing any damage to the cooling tower structure and reassembling the complete tower complete as required at site including applying 2 or more coats of primer and paint as per approved brand and shade.

Removing of old paint & corrosion, making the surface smooth with help of steel scrapper etc making it even for repainting, apply one or more coats primer with hardener to be made with epoxy thinner after applying putties on patches then spray repainting the surface with two or more coats of epoxy paint of approved brand & shade on 350 TR capacity of Cooling towers with connected accessories such as CT fan 7.5 hp electrical motors, tank set complete as reqd.

Supplying, fixing, testing and commissioning of 250mm BUTTER FLY VALVE (GEAR OPERATED) with CI body SS Disc nitrile sheet & O-ring &PN16 pressure rating as specified including nitrile insulation & cladding etc as required for secondary pumps as per Specifications.(The Rates shall be Inclusive of the buy back material).

Supplying, fixing, testing and commissioning of condenser water pipes of following sizes of MS 'C' class along with necessary clamps, vibration isolators and fittings such as bends, tees etc. but excluding valves, strainers, gauges etc. adequately supported on rigid supports duly painted / buried in ground excavation and refilling etc. as per specification and as required complete in all respect. 200 mm

Supplying, Fixing, testing and commissioning of fire dampers of minimum90 minutes fire rated in supply air duct /main branch and return air path as and where required of required sizes i/c control wiring, the damper shall be motorized and spring return so as to close the damper in the even to power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the even to f fire signal and in confirmation to IS and as per specifications complete etc. as required.

SITC of 50mm Y-STRAINER for hanging type AHU’s of Ductile CI Body flanged ends with stainless steel strainer for chilled water circulation including insulation & including buy back for old Y strainer

Repairing of damage flair connection including repairing of 1.5/2 TR Fan Coil motors including replacing of detachable synthetic fiber filter of min12 mm thickness including copper connection with insulation & ball valves if required as per site condition. The Drain Pan of the FCU must be cleaned including the supply & return pipe complete as per site requirement.

SITC of Belt guard for all the primary and secondary pumps (primary pump-5 Nos & secondary pumps- 4 Nos.)

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