REPAIR/MAINTENANCE OF IRON REMOVAL PLANT, PUMPS, MOTORS, AND ALTOC DOSING SYSTEM IN DOMESTIC AREA AT AF STN PURNEA

Amount

Opening the manhole of Iron removal pressure filters and oxidation chambers and taking out the old/unserviceable existing sand gravels and feriminox agent of any size from beds and deposting the same not more than 150 mtr away from filter bed etc and washing the serviceable sand, gravells & fermimix agent by water stream and wire brush upto desired level and refilling the as per existing including cleaning and scrubing the all walls of Iron removal plant internally and externally with wire brush and white washing the same with potassium permagnate, complete all as specified and as directed.

Supply and filling in layers of fine sand and coarse sand in filter media in filter bed grade size 1mm to 1.5mm (as per existing) the depth of sand media varies between 60cm to 80cm very fine and 1 mm accumulated at top of the filter and coarse sand 1.5mm grade below the fine sand etc ccomplete all as specified and as directed.

All as per item No. 2 here-in-before but intermediate 2nd layer of gravel graded size 12mm to 20mm, complete all as specified and as directed.

All as per item No. 2 here-in-before but intermediate 3rd layer of gravel graded size 6mm to 12mm, complete all as specified and as directed.

All as per item No. 2 here-in-before but intermediate 4th layer of gravel graded size 1mm to 6mm, complete all as specified and as directed.

All as per item No. 2 here-in-before but feriminox/MNO2 at catolic agent, complete all as specified and as directed. Note:- MNO2 sealed pack sample by Engr-in-charge should be tested by contractor from Govt approve Laboratory

Taking out old damage alktne strainer bolted type 3/8" dia (PVC) and replace with new complete all as specified and as directed.

Supply of Alum Crystal of approved quality with water in proportionate way for acheiving proper sedimentation of water at all time at Pump Houses as directed by competent authority for better sedimentation process at Pump house No 5 & 8, complete all as specified and as directed.

Supply of Unslaked Lime ( Ca[OH]²) in poly bag container of 9 KG of approved quality with water in proportionate way for acheiving proper sedimentation of water at all time at Pump Houses as directed by competent authority for better Purification/ sedimentation process at Pump house No 5 & 8 complete all as specifed & as Directed.

Taking down carefully electric driven decrin dosing pump set after disconnecting PVC tubing from pump set and supply main for repairs/painting and carrying the pump set to nearest repairing workshop including brought back after repair work, complete all as specified and as directed.

Dismantling carefully decrin dosing pump set any capacity and taking out all serviceable and unserviceable parts and cleaning/removing all dust particles such as mould and moss etc re-assembling the same after greasing the ball bearing including necessary gaskets etc and replacement of underviceable parts, complete all as specified and as directed. Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of motor and pump spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

Supply only Pulsar circuit for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Stroke knob for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Injection check valve (NRV) for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only LDPE Pipe for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Discharge/ Suction valve assembly for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Pan head screw 3/16 X 3/4 for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Foot valve assembly for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Coupling nuts for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Ball Ceramic for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only NRV Spring for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

Supply only Ring seal(Teflon) for fixing against defective parts of dosing pump taking down under item No 11 here in before complete all as specified and as directed.

M&L for cleaning RCC GROUND SEDIMENTATION TANK/Sump 25000 GALLON Capacity, Open Type, located at Domestic PUMP HOUSE by decanting Water, Scraping Internal Surface and Bottom of the Tank with Mild Steel Scrubbers/Brush, Rubbing down Scale, Dirt, Sludge, etc, Washing with Clean Water, Taking out and removing Mud, Dirts, Silts, Sand, Iron Deposits/Sludge, etc. from inside of the Tank and depositing at a distance not exc. 50.0 METRE away from the Tank, Washing Inner Surfaces with using Lime and Bleaching Powder and removing the same until Clean Surface is obtained including Cutting of Bushes, Plants, etc., Cleaning of Drains, surrounding Area up to 3.0 METRE, complete all as specified and as directed.

M&L for cleaning RCC OVER HEAD TANK 50000 GALLON Capacity at located at DOMESTIC PUMP HOUSE by decanting Water, Cleaning of Internal Surface and Bottom of the Tank by scraping with Mild Steel Scrubbers/Brush, Rubbing down Scale, Dirt, Sludge, etc., Washing with Clean Water, Taking out and removing Mud, Dirts, Silts, Sand, Iron Deposits/Sludge, etc. from inside of the Tank and depositing at a distance not exc. 50.0 METRE away from the Tank, Washing Inner Surfaces with using Lime and Bleaching Powder and removing the same until clear water is obtained including Cutting of Bushes, Plants, etc., Cleaning of Drains, surrounding Area, complete including inlet, outlet washout, overflow,pipe duly painted by different colour coding as per MES complete all as specified and as directed.

M&L for preparing outer surfaces of IR plant TANK of PRESSURE FEED FILTRATION PLANT comprising of OXIDATION PLANT, PRE –FILTER, IRON REMOVAL PLANT of 15000 GALLON Capacity, located at Domestic PUMP HOUSE and applying Two Coats of Synthetic Enamel Paint (as approved by Engr-in-Charge) with Spray Painting Machine,including Arrow marking on inlet & outlet pipe line complete all as specified and as directed.

M&L for preparing outer surfaces of IR plant TANK of PRESSURE FEED FILTRATION PLANT comprising of PRE –FILTER and IRON REMOVAL PLANT of 10000 GALLON Capacity, located at Technical PUMP HOUSE.and applying Two Coats of Synthetic Enamel Paint (as approved by Engr-in-Charge) with Spray Painting Machine,including Arrow marking on inlet & outlet pipe line complete all as specified and as directed.

M&L for preparing old painted steel surfaces of pipes those are exposed & laid horizontally at Pump houses not exc. 100mm Width or Girth by Scrapping with Mild Steel Wire Brush and Sand Papering to remove all the Loose Paint, Sludges, Rust, etc. and applying two coats of synthetic enamel paint over a coat of Red Oxide Zinc Chrome Primer, complete all as specified and as directed.

Taking down carefully electric driven centrifugal pump set 15/20HP capacity including MS channels frame from foundation after disconnecting GI pipes/main electric supply from motor starter panel and keeping the MS channel frame at site for repairs/painting and carrying the pump set to nearest repairing workshop including brought back after repair work, complete all as specified and as directed by Engr-in-charge.

Dismantling carefully centrifugal pump set 15/20HP capacity and taking out all serviceable and unserviceable parts and cleaning/removing all dust particles such as mould and moss etc re-assembling the same after greasing the ball bearing including necessary gaskets etc and replacement of underviceable parts, complete all as specified and as directed by Engr-in-charge. Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of motor and pump spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

Supply only Pump shaft with impeller key and nuts for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Cast iron impeller for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Shaft sleeve DE/NDE for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Ball Bearing No. 6306 for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only GM Bushing for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply onlyFan blade (PVC) for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only CI coupling set including key lock and stud etc. for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Cast Iron impeller DB 50/20 for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Shaft Sleeve for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Supply only Ball bearing 6305 for fixing against defective parts of centrifugal pump set 20 HP taking down under item No 19 here in before complete all as specified and as directed.

Dismantling carefully centrifugal pump motor 15/20 HP capacity and taking out the burnt/worn coils from the slots of stator and other accessories such as ball bearing and rotor and cleaning the stator slots and rewinding the same with new supper enamelled copper winding with appropriate gauge, heating, varnishing with doctor beck's insulating varnish and re-assembling the same and testing comissioning complete all as specified and as directed by Engr-in-chrage. Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of motor and pump spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

Labour only for lifting/lowering of U/S 15/20 HP capacity submersible pump set from tube well after disconnecting the electric supply and taking out one by one all column pipes flanged type 80 mm/bore each or suitable size pipe length 6.15 mtr long keeping serviceable fittings in safe custody for reuse/removing U/S materials from site/ making good disturbed surfaces and carrying submersible pump set to nearest repairing workshop including brought back after repair work and lowering the same after replacement unserviceable spare parts such as cloumn pipes flanged type 80mm dia and fixing with new rubber gasket/nuts/ bolts/washers of suitable size etc. including connection of electric supply to motor, testing/commissioning etc. complete all as specified and as directed by Engr-in-Charge. Note. : Replacement of column pipes shall be measured and paid seperately under respective item.

Dismantling carefully submersible motor 15/20 HP capacity and taking out the burnt/worn coils from the slots of stator and other accessories such as ball bearing/bushing and rotor etc . including necessay cutting/grinding/drilling/machining works for fixing of spare parts and cleaning the stator slots and rewinding the same with new supper enamelled copper winding wire with appropriate gauge, heating, varnishing with doctor beck's insulating varnish and re-assembling the same testing complete all as specified and as directed Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of motor and pump spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

Dismantling carefully submersible pump 15/20 HP capacity and taking out all serviceable / unserviceable parts and cleaning/removing all mould/ moss/ foreign material scale and dirt etc. Re-assembling the same after greasing the ball bearing including necessary gaskets and replacement of underviceable spare parts complete all as specified and as directed Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of motor and pump spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

S&F seamless MS pipe 80 mm dia bore for bore well column pipe, 3 M long each pipe both end threaded, fixed with two nos. flanged both end (MS flanges screwed and welded on both ends), and drilling holes on flanges as per existing size/ granding etc. including joint and connecting by providing MS nuts, bolts, gasket etc. and lowering in bore well complete all as specified and as directed by EIC. Note : (i) The pipe shall be heavy duty MS pipe not less than 6 mm thick of wall conforming to IS-1239 (Part - I) of 1979/3589: 2001. (ii) The flanges shall have 8 hole and grooves to accommodate the submersible cables and sling wires. Lath work required for drilling hole as per existing to be done by contractor without any extra cost. (iii) MS Flange thickness shall not be less than 8 mm. (iv) The length of pipe shall be of 3.0 mtr with MS flange screwed and welded at both the ends.

Supply only Pump shaft for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Gun metal impeller for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Impeller bushing for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Stage casing for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Carbon thrust bearing with pressure plate for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Thrust bearing housing for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

Supply only Thrust bearing segment for fixing against defective parts of submersible pump set 15/20 HP taking down under item No 24 here in before complete all as specified and as directed.

M&L painting of 15/20HP capacity centrifugal pump set after removing old painted/rusted surface by paint removers with blow lamps, claming with scrapers etc over the surface of motor/ pump/chennal base of pump set and painting with two coat of grey synthetic enamel paint on motor/pump body /two coat of red synthetic enamel paint on fan guard/two coat of black synethic enamal paint on base channel frame over two coat of red oxide primer shall be painted with electrical spray machine complete all as specified and as directed by Engr-in-Charge.

Supply and fix 2 mtr length heavy duty PVC flexible armoured pipe with jubilee clip on both ends of size 15 mm dia, complete all as specified and as directed

Material & labour for rewinding of electric motor 3/5 HP with supper enamelled copper wire of existing gauge, varnishing drying with electric furnace process with taking down burnt winding cleanining of stator and rotor including replacement of bush, bearing and greasing including replacement of compressor fan belt two nos etc testing & commissioning complete all as specified and as directed.

M&L for reparing the unserviceable butterfly valve 100mm bore by dismantling all the parts and replacement of all unserviceable parts like lock nut, gaskets, packings, nuts, bolts, & washers and making it functional complete all as specified and as directed.

Taking out old unserviceable Diaphragam valve of 100mm size of Zeolite iron removal plant with cutting the rusted bolts, nuts with Rubber sheet, materials & labour of Diaphragam valve of size 100mm bore with flanged ends heavy duty of class PN 1.6 ISI marked drilled for bolts comprising of gun metal spindle with nuts and cast iron operating handle including necessary rubber gasket joint complete with nuts bolts and washers all as per sample and complete all as specified and as directed.

Material and labour for 100mm bore cast iron non return(Reflux) valve with flanged ends Non Return with GM working parts IS - 5312 heavy duty, drilled for bolts, including necessary rubber gasket joint complete with nuts and bolts for the following sizes including taking down the old unserviceable valves complete all as specified and as directed.

All as per item No 32 here-in-before but 80mm bore cast iron non return (Reflux) valve complete all as specified and as directed.

M&L for comprehensive maintenance/servicing of Air Compressor assebly by Cleaning the whole body & Air tank, Oiling, Greasing,Tightening of all nut bolts if required, Minor repairing to compressor Pump and Electric Motor including replace-ment of Spare Parts like V Belt /NRV,s of any size, Pully if required of any type etc. including repleacement of old oil SAE-90 and oter spares, complete all as specified and as directed. Note:- Necessary lathe work will be carried out by contractor and the amount will be deemed to be included in the unit quoted rate ( No extra payment will be given to contractor ) Change of spare parts shall be measured separately under relevant item here-in-after as supply only rates fixing charges for spare parts shall deemed to be inclusive in the quoted rates. Old replaced material has to be shown to Engr-in-Charge measured under sch of credit.

Supply only Safety valve for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Gasket set for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Connecting rod valve for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Air filter for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only element for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only distance bush for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Oil indicator (Al) for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Crank pin for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Washer CU for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Oil seal for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only GM bush for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Outlet nipple for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only B washer/bush for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Key for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Nut nipple for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Free end cover for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Piston ring for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

Supply only Pressure gauge for fixing against defective parts of air compressor taking down under item No 33 here in before complete all as specified and as directed.

M&L for preparation of old painted surface of Air Compressor equipment body such as 3 HP capacity motor, air cyclinder and compressor etc. painting with two coat of grey synthetic enamel paint on motor/air cyclinder/air compressor body/two coat of red synthetic enamel paint on fan guard/two coat of black synethic enamel paint on base channel frame and shall be painted with electrical spray machine complete all as specified and as directed.

Supply and replacement and testing of single phase preventer,415 Volt AC, 50 Hz including replacement internal copper wire connections for starter of suitable size complete all as specified and as directed by Engr-in-Charge.

M&L flat PVC insulated, copper conductor multistranded cable of 6.0 Sqmm, 3 core and testing complete three core flat cable with barebunched copper conductor insulated with PVC and sheathed with PVC for Submersible pump motor with voltage grade upto 1100 V generally Conforming to IS 694:1990. complete all as specified and as directed.

Suppy only water testing solution O-TOLODINE bottle 500 ml complete all as specified and as directed.

Testing of drinking water sample for servicable borewell and after treated water of filter plant of this stn with under mention test by authorised lab i.e, Govt Approved Laboratory and submission of test report to Engr-in-Charge. CHEMICAL TEST :- (a) PH Valve,Temperature,Turbidity,Total hardess (as caco3) mg/l, Alkalinity, TDs ppt. Max,Iron mg/l ,Nitrate mg/l,Chloride mg/l,Residual chlorire mg/l, Fluoride mg/l. BACTERIALOGICAL:- (b) Coliform orgnisms, Faecal coliforms. Note : The bacteriological and chemical testing of water shall be carried out in authorised laboratory and under mentioned item cost includes collecting of samples of water from bore well site and charges of Laboratory for carrying out testing of water sample.

M&L for rubber or fiber board gasket joint for 150mm bore CI pipe including nut, bolt and washer complete all as specified and as directed.

All as per item No 40 here-in-before but 100mm bore CI pipe complete all as specified and as directed.

Supply & Fix fully automatic star delta Submersible pump starter in sheet steel enclouser suitable for 20 HP pump set , 3 phase , 415 volt , 50 Hz , with maximum overload relay range 24-39 Amp , contactor rating 40 Amp having overload , single phasing , phase reversal , phase imbalance ,dry run and short circuit protection , Ammeter meter and voltmeter , On/Off and trip indication including making all electrical connection to run the pump and including taking down old unserviceable ones, complete all as specified and as directed by Engr-In-Charge.

Supply and fixing male female threaded adaptor suitable for soda ASH/Alum pots including taking down old adaptors, complete all as specified and as directed.

Supply only Chlorine test Kit with coloured sample complete with all testing fitments and OT solution in rexine finish box, complete all as specified and as directed.

Supply and fix pressure gauge of capacity 0 to 10.5 kg/cm2 complete all as specified and as directed.

Material and Labour for making lead wool/lead joint for connecting of the cast iron pipes 150mm bore and testing for leakage after completion, complete all as specified and as directed.

Supply and replacement of SWR steel rope of size 6mm dia including fixing double U clamps of suitable size complete all as specified and as directed.

Supply and fixing in repairs, weighted suction line strainer 3/8'' of existing make complete all as specified and as directed.

Supply and fixing in repairs, 3/8'' white suction/discharge PVC tubing suitable for decrin Dosing pump of existing make complete all as specified and as directed.

Supply and fixing in repairs, complete shaft with impeller, shaft made out of poly propylene rigid dia 32mm and 500mm long, impeller-two bladed pitched blade turbine and blades are welded to shaft of existing make complete all as specified and as directed.

M&L for development of tube well with air compressor not less than 265 CFM capacity with adjustable length of pipe till sand free potable water is obtained complete all as specified and as directed by Engineer in charge. Notes:- (i)The machinaries, tools and plants, Diesel and labour shall be inclusive in the quoted rates No extra payments. (ii) Compressor of CFM with minimum 10 Kg/ cm² pressure to be used for flushing.

Material & labour for repairs and rewinding of electric motor of 1 HP with supper enamelled copper wire of existing gauge, varnishing drying with electric furnace process with taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing and greasing including testing & commissioning complete all as specified and as directed.

Supply, only Item No S411AE, item type C, Item name STEQUA411 AE refill, Specification:- Chlorine tablets contained in plastic cylindrical sealed disposable sanitiser refill for disinfection of drinking water with arrangements of controlled release of disinfectant in wate, suitable for operation through recommended dosing system. Replacement indication- visual and weight variation operation type -non contact, non inhalatory, heavy metal contaminants (like Hg and Pb) in product media must be below detection limit(BDL) and product must pass through acute toxicity test, based on which the product must be considered safe to use from human health safety point of view. when use in recommended dosage, complete all as specified and as directed by Eng-in-charge. NOTE:- The contract sum shall be arrieved at after deducting amount of schedule of credit from the total quoted amount.

M/S RAM DAS

M/S SATISH KUMAR SINGH & SONS