Painting repairs and Preventive Corrective maintenance of several equipment of sewage treatment plant and other miscellaneous works at Nagtalao under AGE I Nagtalao

Amount

Dewatering the shelter tank capacity 400000 Ltrs with the help of mud pump and removal of complete sludge and cleaning inside, descaling with wire brush internal surface of tank and scraper unit floculator and washing fresh water two times with bleaching powder all as specified & directed by Engr-in-Charge. Note:- 1. Make a temporary arragement of sewage disposal by existing adhoc pump to approx 100 mtrs far from STP. 2. Work is in running condition and the contractor is required to take necessary safety precautions and arrange safety mask, hand gloves etc 3. Arragement of mud pump set for dewatering at his own expense. Quoted rate is deemed to be inclusive of the above aspect.

M& L for dewatering with help of mud pump and Manning for cleaning of aeration tanks of compartments of each 4.89x6.00x5.00 m size and removing all the settled solid sludge or any other type of material and through out side MD Land and as directed by Engr-in-Charge.

M & L for dewatering with help of mud pump and Manning for cleaning of relay tank of size 12x4.89x5.00 m and removing all the settled deposited fungus or any other type of bio-fouling and all as directed by Engr-in-Charge.

M & L for dewatering with help of mud pump and manning for cleaning of collection chamber of size 3mx3m upto bottom and removing all settled deposited material or any bio-fouling settled sewage all as directed by Engr in Charge. Make a temporary arragement of sewage disposal by existing adhoc pump to approx 100 mtrs far from STP. 2. Work is in running condition and the contractor is required to take necessary safety precautions and arrange safety mask, hand gloves etc. 3. Arragement of mud pump set for dewatering at his own expense. Quoted rate is deemed to be inclusive of the above aspect.

M & L for cleaning and removal of sludge from sludge beds and each chamber is of size 3.52x2.00x1.20m through to out side MD Land as directed by Engr-in-Charge.

M & L for dewatering with help of mud pump and manning for cleaning of clear water storage tank of 4.5 m x 3 m top to bottom and removing all settled deposited material or any bio-fouling settled sewage all as directed by Engr in Charge. Note:-Make a temporary arragement of sewage disposal by existing adhoc pump to approx 100 mtrs far from STP. 2. Work is in running condition and the contractor is required to take necessary safety precautions and arrange safety mask, hand gloves etc. 3. Arragement of mud pump set for dewatering at his own expense. Quoted rate is deemed to be inclusive of the above aspect.

Taking down old broken HDPE pipe line and Supply and fix 3- layer PP-R Polypropylene random copolymer) pipes SDR 7.4 & SDR 11UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches/fixed to wall,floor etc including all fittings/acessories required at site for following sizes complete all as directed by Engr-in-charge at site. (a) 90 mm outer dia of pipe.

(b) 75 mm outer dia of pipe

( c) 50 mm outer dia of pipe

M & L for painting to skimmer tank of size 1x0.6x1m and apply the two coat of Rubber paint in side and two coats of synthetic enamel paint at out side all as directed by Engr-in-charge at site.

M & L for painting to aeration tanks of compartments of each 4.89x6.00x5.00 m size and apply the two coat of Rubber paint in side and two coats of synthetic enamel paint at out side all as directed by Engr-in-charge at site.

M & L for painting to relay tank of size 12x4.89x5.00 m and apply the two coat of Rubber paint in side and two coats of synthetic enamel paint at out side all as directed by Engr-in-charge at site.

M & L for painting to clear water storage tank of 4.5 m x 3 m and apply the two coat of Rubber paint in side walls all as directed by Engr-in-charge at site.

Taking out old U/S PTMT stop valves and supply & fix stop valves of PTMT any colour high pressure of 6 kgf/sqcm screwed for 50 mm bore HDPE pipe with as required adhesive all as directed by Engineer-in-Charge.

Taking out old U/S PTMT stop valves and supply & fix stop valves of PTMT any colour high pressure of 6 kgf/sqcm screwed for 75 mm bore HDPE pipe with as required adhesive all as directed by Engineer-in-Charge.

Taking out old U/S PTMT stop valves and supply & fix stop valves of PTMT any colour high pressure of 6 kgf/sqcm screwed for 90 mm bore HDPE pipe with as required adhesive all as directed by Engineer-in-Charge.

Taking out old U/S HDPE pipe and M & L for HDPE Heavy duty pipe dia 15 mm and fix on walls and ceiling or laid in floors with its fittings complete all as directed by Engineer-in-Charge.

Repair and Servicing of electric motor of 2 H P and 1 no. gear box unit arragement for rotating flaucolater and two coat enamel painting of all mattel parts complete all as directed by Engineer-in-Charge.

Taking out old U/S pressure guage and Supply and fix new pressure guage dial type measuring capacity 0-7 Kg/Sqcm (0-100 lb/in2) all as directed by Engr-in-Charge.

Repair and overhauling of Air compressor set of two of capacity 15 HP any make complete including cleaning, oiling , greasing and replacement of worn out spares, machining and grinding all as required at site and installation testing and commissioning complete of capacity 260 CFM and air pressure 7 PSIG and applying two coat enamel painting of all metal parts complete all as directed by Engineer-in-Charge (for Aeration tank)

Repair and overhauling of Air compressor set of two of capacity 5 HP any make complete including cleaning, oiling , greasing and replacement of worn out spares, machining and grinding all as required at site and installation testing and commissioning complete of capacity 130 CFM and air pressure 5 PSIG and applying two coat enamel painting of all metal parts complete all as directed by Engineer-in-Charge (for Relay tank)

Material and labour for rewinding of vertical/horizontal 3 phase, 415V, electric induction motor with super enamalled copper winding wire of appropriate gauge heavy duty of class 'B' insulation and varnishing complete to the winding etc, reassembling complete and testing on full load and applying two coat enamel painting of all metal parts complete all as directed for the following capacities of motors :-(a) 3.5 HP

Taking out submersible pump from collection chamber using chain pulley and tripod pod etc and Repair and overhauling of sewage pump set of any make complete including cleaning, oiling , greasing and replacement of worn out spares, machining and grinding all as required and installation testing and commissioning and applying two coat enamel painting of all metal parts complete all as directed and to the entire satisfaction of Engineer - in - charge of capacity 5 HP.

Supply and fixing in repair automatic star delta starter with single phase preventor , ML-2 FASD three phase 415 V suitable for upto 15 HP Centrifugal pump set/compressure Make: L & T or equivalent.

M & L for Painting of metal part motor and pump with two coats of synthetic enamel paint of following size all as directed by Engr-in-Charge: (a) 3.5 to 5 HP

(b) 7.5 to 15 HP

Supply & fix hydrodynamic type ball type foot valve of size 80 mm

Supply & fix brass foot valve of size 100 mm

Taking out submersible pump set with 30.0 HP motor and Column Pipe 200 mm bore & of length 15M (approx) from kaylana lake(Pump House) transporting the same to work shop for repair and rewinding the submersible motor with insulated copper wire of existing size with insulating materials incl changing of gasket and relowering in the existing location including all necessary water and electric connection and testing on full load capacity all as directed by Engineer-in-Charge.

M & L for removing and dismantling of 30 HP submersible pump and replacement of unserviceable bushes including remetaling, grinding, of bronze/Brass Impellers and including replacement of pump shaft to match the bore of bushes and impellers for smooth running of pump set etc complete all as directed by Engineer-in-Charge.

M&L for taking out carbon filter silver imprecated and wasing the same and refilling in cylinderical tank

M&L for taking out sand bed from cylinderical tank wasing the same and refilling in cylinderical tank.

M&L for refilling in cylinderical tank with new carbon filter silver imprecated.

M&L for refilling in cylinderical tank with new sand bed.

Supply and fix submersible cable flat 3 core copper 10 sqmm all as specified & directed by Engr-in-Charge.

Supply and fix joints and sockets after taking out old unserviceable from the existing dripper line all as specified & directed by Engr-in-Charge.

Supply and fix 16/20 mm drip pipe including necessary elbow, straight & T connectors, end taps, dummy, universal water adaptor etc for extending the dripper system to new locations all as specified & directed by Engr-in-Charge.

Supply and fix drip nozzles/emmiters on existing and new drip pipe including making hole on every 1.0 mtrs of pipe line all as specified & directed by Engr-in-Charge.

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