REPAIR MAINTENANCE OF COOLING TOWER AND CONNECTED WORK UNDER GE(U) PM DELHI CANTT10

Amount

Dismantling of existing worn out electric motor of CT Fan of cooling tower and Supply and fixing in repair with testing and commissioning totally enclosed weather proof IP-55, Flange Mounted Extended Shaft electric CT Fan Motor with following specification complete all as specified and as directed:- (a) Three phase squirrel cage motor, Capacity 10 HP, 720 RPM, 415V, 50HZ with all connected accessories and all fitting suitable for 225 TR cooling tower.

Dismantling of existing corrosion proof PVC fill from the induced draft type cooling tower of fibre glass reinforced plastic (FRP) casting rectangular/other type construction for Cooling tower of 225 TR capacity complete with all accessories and supply and fixing new corrosion proof both edge folded PVC fill and inlet louvers, drift , eliminators hot water distribution pipes and nozzles etc complete all as specified and as directed: - (a) The spray system should be work satisfactory even with 50% reduced flow of water. (b) The induced draught cooling tower should be operate according to the counter flow principle. (c) cooling tower specification for PVC filling Size 600X 300X 150 MM both edge folded.

Dismantling of existing damaged CT Fan and S&F in repair CT Fan complete section Fan, Fan Dia-1800 mm 06 Blades connected GI nut bolts and acessories all fitting suitable for 225 TR cooling tower complete all as specified and as directed.

Supply and fixing in repair / Replacement of worn out Rectangular / Square type shape and FRP induced draft type counter flow cooling tower body, casting by fibre glass reinforced ,casing & basin(FRP), over all dimension (LXWXH )-3000x3000X 3700(mm), suitable for 225 TR cooling tower, complete as per manufacturer's design/specifications with all fittings complete all as specified and as directed.

Repair / Replacement of Rectangular / Square type shape and FRP induced draft type counter flow, cooling tower Fan Guard, Motor Frame and all Metallic Supports by new MSHDG type mechanical equipment supports, electroplated hardware, drain connections, suitable GI inspection ladder, steel supporting structure, anti vibration mounting etc, suitable for 225 TR cooling tower, complete as per manufacturer's design/specifications with all fittings complete all as specified and as directed. Note:-(Ref. item No. 1.00 to 5.00) 1. The cooling tower shall be assembled and fitted in presence of company represenative and shall be tested as per company specifications. 2. Any spares required for assembling the cooling tower like nuts, bolts , rivets, gaskets, etc shall be provided by the contractor and rates of the same are included in n quoted rate. 3. The contractor shall get the drawings of foundation of cooling tower as per OEM recommendation and complete specification of cooling tower approved by the accepting officer before placing the orders. 4. Rate quoted by the contractor shall be incusive new foundation of cooling tower complete pcc, brick work, cement work etc as per OEM recommendation with also dismentling of cooling tower & old foundation complete all as specified and directed

Material and Labour for frame work with angle iron for frame support, with fabrication, welding joining including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 including taking down old unserviceable one complete all as specified and as directed.

Supply and fixing in replacement cast iron Y strainer flenged ends with SS perforated sheet screen of following size complete all as specified and as directed.

100mm dia

150mm dia

200mm dia

250mm dia

Supply and fixing in replacement cast iron butter fly valves lever operated SS disc type nitrile/EPDM rubber lining PN 16 of following size dia complete all as specified and as directed.

300 mm dia.

250 mm dia.

200 mm dia.

150 mm dia.

125 mm dia.

100 mm dia.

80 mm dia.

65 mm dia.

50 mm dia

Material & Labour for cutting of existing MS/GI water mains of size 80- 150 mm dia of chiller/condensor/cooling towers & GI pipes of make-up tanks of central AC plant at different points/section for replacement with new MS pipe in short lengths including MS fittings complete all as specified and as directed.

Material & Labour for cutting of existing MS/GI water mains of size 150 to 300 mm dia of chiller/condensor/cooling towers & GI pipes of make-up tanks of central AC plant at different points/section for replacement with new MS pipe in short lengths including MS fittings complete all as specified and as directed.

Taking out old unserviceable MS pipes and Supplying & laying , commissioning & testing mild steel (Heavy) 'C' class pipe of size 50/65 mm dia on exposed surface / underground (in trenches) including welding works, connections with existing chilled water line, chiller, pump, fabrication of bends, MS flange, tees, reducers, shoe, support (brick masonry block & wooden support for underground / MS angle- clamp & wooden support for exposed surface) along with priming coat of steel primer as per standard specification complete all as specified and as directed. Note:- (i) The rates quoted by the contractor shall deemed to include the cost of MS fittings required during laying of MS Pipes. (ii) The Pipes of sizes 150 mm & below shall be M.S. ‘C’ class as per IS : 1239 and pipes size above 150 mm shall be heavy class of thickness min. 7mm as per IS: 3589. (iii) Cost of excavation, returning, filling and removing shall be paid separately under relevant item.

All as per item No. 11 here-in-before but of size 80 mm.

All as per item No. 11 here-in-before but of size 100 mm.

All as per item No. 11 here-in-before but of size 125 mm.

All as per item No. 11 here-in-before but of size 150 mm.

All as per item No. 11 here-in-before but of size 200 mm.

All as per item No. 11 here-in-before but of size 250 mm.

All as per item No. 11 here-in-before but of size 300 mm.

Supply, fixing and testing in replacement of three pole power contactors of capacity MNX-32 including NO or NC auxiliary contact block, coil voltage 230 V ,control wiring, thimbles, etc and including taking down of old one complete all as specified and as directed.

Supply, fixing and testing in replacement of three pole power contactors of capacity MNX-25 including NO or NC auxiliary contact block, coil voltage 230 V ,control wiring, thimbles, etc and including taking down of old one complete all as specified and as directed.

Supply, fixing and testing in replacement of three pole power contactors of capacity MNX-18 including NO or NC auxiliary contact block, coil voltage 230 V ,control wiring, thimbles, etc and including taking down of old one complete all as specified and as directed.

Supply and fixing in replacement over load relay 30-50 Amps complete all as specified and as directed.

Supply and fixing in replacement Star Delta Starter with suitable rating relays for motors of 10 HP Capacity suitable for mounting on existing LT Panels of AC plants and connections with suitable size single core copper conductor wire & brass terminals of 6 way complete all as specified and directed.

Supply and fixing in repairs of PVC fins size 600x300x150 for Cooling Tower, Complete all as specified & directed.

Supply and fixing in repairs of PVC eleminators size 600x300x150 for Cooling Tower, Complete all as specified & directed.

Material & Labour for dismantling the old broken fan hub assembly including blades of cooling tower and replacement with new fan hub assembly with die cast aluminium blades adjustible pitch axial fan heavy duty as per existing size including U-clamps, nuts, bolts & washers suitable for cooling tower of capacity 220/230 TR all as specified and directed.

-ditto- all as per item No.26 above but capacity of cooling tower 125/130TR

-ditto- all as per item No.26 above but capacity of cooling tower 70/75TR

-ditto- all as per item No.26 above but capacity of cooling tower 50TR

Disconnecting the defective FRP cooling tower of Cap 220/230 TR of cooling minimum 270cum/hr of water from 42 degree C to 32 degree C with bulb temperature Make- Paharpur, and repair and cleaning the same by replacing defective broken/unserviceable spare parts including repair to minor leakages & assembling, tesing & comminssioning for satisfactory performance complete all as specified & as directed. Note:- (i) Required Spare parts shall be measured and paid seperatly as 'Supply only' under relevent item no 28.01 to 28.06. (ii) Labour charges for taking down old spares and fixing of new spares shall deemed to be included in unit quoted rate.

Supply only of following spare parts for FRP cooling tower complete all as specified & as directed:-

MS branch pipe set o as per existing length and dia

PVC fill Pack complete

spary nozzle

Nut Bolt any size

Butterfly valve

Cooling sprinkler tray

FRP Compound Note for item No 28.01 to 28.07- (i) Labour charges of item Nos. 28.01 to 28.07 are deemed to be included in the quoted rate in item Nos. 27.00 here-in-before.

Disconnecting from mains/taking out existing unserviceable/defective Cooling tower motor of capacity 20 H.P and repair/ replacement of bushings, worn out nuts, bolts washers, gaskets, gland etc and positioning the pump set and connecting up in existing position and testing complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective Cooling tower motor of capacity 20 HP of any size, type, and make including disconnecting all electrical connections removing from foundation transporting to repair workshop disconnecting unserviceable burn out winding completely including insulating materials and rewinding of the complete stator with super enameled copper wire of existing size applying proper insulation ‘F’ class varnish drying in oven, assembling, transporting back to site, re-installating, testing and commissioning complete all as specified and as directed.

Dismentling the defective FRP cooling tower gear box of Cap 220/230 TR of Paharpur, and Overhauling the same by replacing defective broken/unserviceable spare parts taper/ ball bearings, any type gears, main shaft kharad work, keys, nut bolt etc and including greasing , servicing, cleaning and assembling, testing & comminssioning for satisfactory performance complete all as specified & as directed.

Supply only gear oil suitable for gear box of Cap 220/230 TR cooling tower complete all as specified & as directed.

Material & Labour preparation of surface by removing old paint by scraping with scrap paper/ sand paper and applying one coat of red oxide zinc chrome primer and two coats of Synthetic Enamel Paint (1st grade quality) on outer body of cooling tower of capacity 220/230TR and all pipe lines, valves,complete all as specified and as directed.

All as per item No. 33 here-in-before but size of cooling tower 125/130TR.

All as per item No. 33 here-in-before but size of cooling tower 70/75TR.

All as per item No. 33 here-in-before but size of cooling tower 50TR.

All as per item No. 33 here-in-before but size of cooling tower 30TR.

Material & Labour for dewatering and cleaning of underground sumps of 10000 Ltr to 25000 Ltr capacities with high pressure water jet to remove all masses, algae and dirt and removal of dirty water along with sludge using sludge machine and disposal of the same to a safe distance and including scrubbing of internal surfaces using industrial vacuum machine and applying of anti bacterial sterilization spray and apply one coat white wash to walls, floors and ceilings internal surfaces of reservoirs and UG sumps of the following capacity complete all as specified as directed .

Opening the electric induction motor of capacity 40 HP and taking out the unserviceable winding wire complete and cleaning the slots, rewinding the motor with super enamelled copper winding wire of gauge same as existing gauge including all other insulating material, (i.e. cotton tap, PVC tap, PVC sleeve glass pipe, varnish) complete all as specified and as directed.

Disconnecting the centrifugal pump and repairing the same by replacing unserviceable spare parts including lath work etc and re-assembling the same in original position of 40 HP pump having discharge 25 LPS at 65 Mtr head complete all as specified and as directed. (Note:- Spare parts required for repaired shall be measured and paid separately under relevant items of this schedule 37.01 to 37.11)

Supply only in replacement following spare for pumps of capacity 40 HP, complete all as specified and as directed. Suitable for Kirloskar or equivalent in crompton Greaves complete all as specified and as directed.

CI Impellor

CI casing wearing ring DEN/ ND.

CI Split glands.

Ball bearing SKF 6306/6307.

Bearing Cap.

Key for impeller steel.

Impeller nut (steel).

Remetalling welding & turning of pump shaft.

Stuffing box bush.

Gland packing

Trey coupling

Disconnecting from mains/taking out existing unserviceable/defective CT Fan motor set of capacity 2/3 H.P and repair/ replacement of bushings, worn out nuts, bolts washers, gaskets, gland etc and positioning the pump set and connecting up in existing position and testing complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective CT Fan motor set of capacity 5 H.P and repair/ replacement of bushings, worn out nuts, bolts washers, gaskets, gland etc and positioning the pump set and connecting up in existing position and testing complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective CT Fan motor of capacity 2/3 HP of any size, type, and make including disconnecting all electrical connections removing from foundation transporting to repair workshop disconnecting unserviceable burn out winding completely including insulating materials and rewinding of the complete stator with super enameled copper wire of existing size applying proper insulation ‘F’ class varnish drying in oven, assembling, transporting back to site, re-installating, testing and commissioning complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective CT Fan motor of capacity 5 HP of any size, type, and make including disconnecting all electrical connections removing from foundation transporting to repair workshop disconnecting unserviceable burn out winding completely including insulating materials and rewinding of the complete stator with super enameled copper wire of existing size applying proper insulation ‘F’ class varnish drying in oven, assembling, transporting back to site, re-installating, testing and commissioning complete all as specified and as directed.

Material & Labour preparation of surface by removing old paint by scraping with scrap paper/ sand paper and applying two coat of synthetic enamel paint on pipe lines (100/80mm- approx 80mtr), sluice valves & NRV (80mm size- 11 Nos) , Pumping sets with base ( 40HP capacity- 04Nos), 200/250mm size header-11mtr etc including shutters, iron windows also writing letters SM/MES No. on pumping set with letter size of 10 cm Height complete all as specified and as directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, armoured, electric power cables (heavy duty) 1100 Volts grade with aluminium conductor of cross sectional area 25 Sqmm, 4 core with galvanized steel strip or wire including taking down old unserviceable one complete all as specified and as directed.

`-ditto- all as per item No. 43 above but cross sectional area 16 Sqmm, 4 core.

`-ditto- all as per item No. 43 above but cross sectional area 10 Sqmm, 4 core.

`-ditto- all as per item No. 43 above but cross sectional area 6 Sqmm, 4 core.

Supply and fixing in replacement microprocessor controller for Voltas package unit Model no. DPUASC110 of 11 TR capacity having Digital setting of temperature levels, Built-in time delay, Auto distribution of load, BMS compatibility, in-built, anti-freeze protection system, Self diagnostics/ fault detection, and Auto-restart feature, along with complete internal wiring with connecting accessories like cable, wires, terminals etc., all as specified and as directed.

Material & Labour for dismantling the old brokrn existing PVC tank and S&F in replacement 10000 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grain plastic (cylindrical, vertical with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed.

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth for foundation / fixing pole / laying cable and pipe line etc or for man hole etc not exc 10 Sqm on plan and getting out in soft / loose soil complete all as specified and as directed.

Returning filling in including spreading, levelling, watering and well ramming in layers, not exceeding 25 cm thick complete all as specified and as directed.

Removing excavated Soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and as directed.

Material & Labour for providing dry river sand as in sand cushioning to under ground electric cable including punning down of sand in layer complete all as specified and as directed. Note: For measurement purpose punned thickness of sand shall only be considered.

Supply and Laying burn brick size 225 mm X 113 mm X 75 mm as in protection to cable complete all as specified and directed.

Dismantling and shifting of cooling tower of capacity 45/50 TR to a new location including electric fan motor of cooling tower,pvc fills,eliminators,hot water distributer pipes,nozzles,CT fan,cooling tower body,cooling tower fan guard, motor frame and all metallic supports,electroplated hardware,drain connections,GI inspection ladder,steel supporting structure etc upto a distance of 100 Meter including necessary alterations in the pipe line and staging complete after dismantling of existing cooling tower from the existing location as specified and directed.

Material & Labour in replacement for earthing with galvanized steel earth plate electrode of size 60cmx60cm x6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanized earth lead by means of bolts, nuts check nuts and washers of galvanized iron strip 32x6mm as earth lead as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including GI strip up to 7.5mtr and necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel, 20mm dia GI medium grade watering pipe, 40 mm dia GI medium grade earth lead protection pipe and pre-cast earth pit cover 50mm thick made of RCC (1:1.5:3) type A1 duly reinforced with 8mm dia TMT bar @100mm c/c both ways, one lifting handle made out of 10mm dia TMT bar 250mm long embedded in cover slab and cover, wire, copper lugs etc mesh, charcoal and common salt in alternate layer of 15cm thick including taking down old unserviceable one complete all as specified and directed.

Supply and fixing in replacement of earth continuity conductor or main earthing lead (GI strip extension) of size 32 X 6mm fixed to plinth or buried in ground or drawn in GI pipe or any other situation as indicated for loop earthing etc complete all as specified and directed.

Supply and fixing in repair cable tray of size 150 x 50 mm and thickness 3.00 mm complete all as specified & directed.

ditto- same as item No 57 but of size 300 x 50 mm.

Material & Labour for Taking out old corroded GI water tubing of 40/50 mm dia.

ditto- all as per item No. 59 above but 25 mm dia.

ditto- all as per item No. 59 above but 20 mm dia.

ditto- all as per item No. 59 above but 15 mm dia.

Supply laying, connecting and testing GI water tubing 50 mm bore, medium grade, with all fittings, with screwed and socketed joints, laid in trenches/floor or fixed to wall or surface and making good the disturbed surface complete all as specified and as directed.

ditto- all as per item No. 60 above but 40 mm dia.

ditto- all as per item No. 60 above but 25 mm dia.

ditto- all as per item No. 60 above but 20 mm dia.

ditto- all as per item No. 60 above but 15 mm dia.

Supply and fixing in replacement Gun metal Ball valve suitable for 50 mm bore pipe complete all as specified and as directed.

All as per Srl item No. 61 here-in-before but suitable for 40 mm bore pipe complete all as specified and as directed.

All as per Srl item No. 61 here-in-before but suitable for 25 mm bore pipe complete all as specified and as directed.

All as per Srl item No. 61 here-in-before but suitable for 20 mm bore pipe complete all as specified and as directed.

All as per Srl item No. 61 here-in-before but suitable for 15 mm bore pipe complete all as specified and as directed.

SNOWY ENGINEERING INC (BID ID -3279350)

Shiv Enterprises (BID ID -3274863)

Iconic Engineers (BID ID -3279177)