REPAIR / MAINTENANCE OF BOREWELL, WATER SUPPLY INSTALLATION, FILTRATION PLANT, CLEANING OF OH TANKS, FILTRATION PLANT AND OTHER CONNECTED WORKS AT AF STATION SALUA UNDER GE (AF) KALAIKUNDA

Amount

M&L for dismantling/disconnecting of Openwell submersible/ Monoblock pumpset with electric driven capacity 1 HP, 3- phase, 230 volts, 50 Hz from suction and delivery pipe and removing from existing position and repair/rewinding, bushing complete and refixing on same position incl connecting testing all as specified and directed by Engr-in-Charge.

All as per the item no 01 but 0.5/1 Hp dosing pump/motor.

Supply & fix dosing pump roller assembly suitable for existing old U/S dosing pump and taking out old unserviceable roller assembly complete all as specified and directed by Engr-in-Charge. Make :- As per sample.

Supply & fix dosing pump tube suitable for existing old U/S dosing pump and taking out old unserviceable dosing pump tube complete all as specified and directed by Engr-In-Charge. Make :- As per sample.

Supply & fix dosing pump weighted suction line strainer suitable for existing old U/S dosing pump and taking out old unserviceable dosing pump weighted suction line strainer complete all as specified and directed by Engr-In-Charge . Make :- As per sample.

Supply & fix dosing pump Injection check valve suitable for existing old U/S and taking out dosing pump Injection check valve complete all as specified and directed by Engr-In-Charge. Make :- As per sample.

M&L forDisconnecting submersible motor of any capacity from electric system and lifting the pump and motor along with column pipe supporting wire, rope etc completely and lowering the whole system and connecting the electrical cable to starter after rectification of defects incl testing all as directed by Engr-in-Charge.

M& L for Dismantling submersible pump part by part and segregating serviceable/unserviceable parts, replace the U/S parts painting the entire pump and refixing the plant complete as working condition at site all as specified and directed by Engr - in charge of the following capacities 25/20 HP submersible pump: Note: (spare parts to be measured and paid separately)

All as per item No. 08 here-in-before but capacity 7.5 HP open hole submersible pump.

M& L for Disconnecting the submersible motor 3 phase 415 volts completely and shifting to the civil workshop for removing of U/S windings, bearing etc, incl cleaning the slots, rewinding with new insulated copper wire as per existing size and submersible 6 sqmm cable 04 RM and installation, testing complete as per manufacturer's instruction with entire satisfaction of Engr-in-charge of the following capacities 25/20 HP submersible pump :- Note: (spare parts excluding copper coil will be measured and paid separately)

All as per item No. 10 here-in-before but capacity 7.5 HP open hole submersible pump/ Non clogging sewage pump

S&F in replacement of Bowl CI for submersible pump of 5 HP to 25 HP.

S&F in replacement of sleeves (S/S) for submersible pump of 5 HP to 25 HP.

S&F in replacement of rubber bush for submersible pump.

S&F in replacement of hexagonal nut & bolts for submersible pump.

S&F in replacement of neck ring for submersible pump of 5 HP to 25 HP capacities.

S&F in replacement of thrust bearing with carbon suitable for submersible pump of 5 HP to 25 HP.

M&L disconnecting the centrifugal pump/pump motor and segregating serviceable/unserviceable parts, replace the U/S parts painting the entire pump and rewinding with super enamelled copper wire as per existing size, varnishing, heating and painting with 2 coats of synthetic enamelled paint and reconnecting to existing panel/MCB etc complete all as specified as directed by Engr in charge of the following capacities 5 to 15 HP pump.

S&F in replacement of Mechanical seal.

S&F in replacement of marking tape.

S&F in replacement of ' O ' Ring and gasket.

S&F in replacement of Radial bearing upper.

S&F in replacement of radial bearing lower.

S&F in replacement of pump bearing.

S&F in replacement of Shaft key.

M & L flushing of existing bore well of depth up to 150mtr, and with compressor air/back washing using GI pipe 20/25 mm size for a minimum period of 6 hrs or upto the time all sludge are flushed out till clear water is obtained. Conducting Yield test with ‘V’ notch of submersible pump set in the bore well all as per the directions of Engr-in-charge.

M & L for 5 layers of gravel (50mm to 40mm size-75mm), 40mm to 20mm size-75mm, 20mm to 15mm size 75mm, 15mm to 5mm size 75mm and 5mm to3mm size-150mm followed by two layer of quartz sand dumbed and leveled near filter plant area of effective size 0.55mm to 0.7mm of uniformity coefficient not exceeding 1.5, old removed gravels/sand to be complete all as specified and directed.

S&F in replacement of heavy duty CPVC pipe of 90 mm size from the filter bed including making good of the disturbed surfsces as existing complete all as specified and directed

S & F MS column pipe 100mm dia bore, 10 feet long each with flanges screwed and welded both ends complete with nuts, bolts, gasket etc lowered into bore well complete all as specified and directed. Note:- The pipe shall be heavy duty not less than 6 mm thick of wall conforming to IS-1239 (Part-I) of 1979 and the flanges shall have grooves to accommodate the submersible cables and sling wires

M&L for Cleaning of OH reservoirs/Water tank of the following capacities on RCC staging by draining out water, removing all dirt, dust and mud etc by scraping down with wire brush inside wall and bottom surfaces to remove impurities and cleaning internal surfaces with bleaching powder and fresh water, including writing the capacity, date of cleaning, next due date, etc. of Capacity 100000 gallons (including 02 chambers) all as directed by the Engineer-in-charge.

All as per item No. 30 here-in-before but capacity of 50000 gallons, complete all as specified and as directed

M&L Cleaning of the following tanks after draining out water, removing all dirt, dust and mud etc by scraping down with wire brush inside wall and bottom surfaces to remove impurities and cleaning internal surfaces with bleaching powder and fresh water , including writing the capacity and date of cleaning, etc at Aerator deck to flux mixer (22000 Gallon /h) all as directed .

All as per item No. 32 here-in-before but at Sedimentation tank (28000 Gallon /h)

All as per item No. 32 here-in-before but at Filter bed (28000 Gallon /H)

Supply only white Crystal Alum of good quality. Aquafit or best quality

Supply only Chlorotech-Hypochlorite Calcium based galvanised disinfectant for water treatment, more stable than Chlorine Gas and Sodium Hypochlorite) in 45Kg plastic drums or any suitable containers.

Supply only plastic cylindrical sealed disposable sanitiser refill containing solid Chlorine for disinfection of drinking water, water with arrangement for controlled release of disinfectant in water, suitable for operation through recommended dosing system. Replacement indication: visual & weight variation, Water contact orifice design: Sealed when dry, exposed upon immersion, Operation type: Non-contact, non-inhalatory, Cylinder dia: 2.5 inches ± 0.5 inches, Cylinder height: Minimum 10.0 inches ± 0.5 inches complete all as specified and directed. Make: Declibac or equivalent

Supply only Chlorine test kit/ iron test kit against old u/s kit with coloured sample complete with all testing fitments and OT solution in rexine finish box.

Testing of drinking water sample for servicable borewell No 6,7 and after treated water of filter plant of this stn with under mention test by authorised lab ie, IIT Kharagpur or District water testing laborotory kharagpur, Inda or any approved by GE :- 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.

M&L for reparing/servicing of existing of engine oil of Air compressor ( air blower ) fitted with 5 HP 440 V AC 1440 rpm TEFC motor cap: 200 cfm

S&F in replacement of Auto matic star delta starter 3 phase 415 volts suitable for 20/25 HP submersible pump.

S&F in replacement of Auto matic DOL starter 3 phase 415 volts suitable for 5 HP/7.5 HP submersible pump.

S& F in replacement of brass vertical check valve of size 80 mm for 5 HP/7.5 HP pump.

Supply only rubber gasket of size not less than 5 mm thick as per sample for repacking valves/leakage gasket packings.

M&L for repair of existing valve chamber by using brick masonry with fly ash brick valve chamber of internal size 1.5 M x1.5M x1.0 M with 23 cm thick wall in CM 1:6 including excavation if required, earth work in any strata & PCC 1:4:8 foundation type D-2, 75 mm thick including 20 mm thick PCC 1:2:4 type B1 in & plastering the internal surface with 10 mm thick cement mortar 1:4 if required & replacing old 3.15 mm MS sheet chamber cover double opening arrangement center lock system with40x40x6mm angle iron frame duly painted with two coat of black bituminous paint over one coat of red oxide primer complete all as directed by Engr in Chargre.

S&F in replacement of 10 mm dia steel wire rope for hanging submersible/sewage pump of various overhead tanks installed in AF station salua all as specified and directed by Engr-in charge.

M&L for cleaning the vegetation incl grass, bushes, small trees & all vegetation growth complete incl digging out roots of bushes around installation /sump/OH tanks/ valve chamber incl leveling the surface by removing debris to a distance n.exc 50 mtr all as directed.

M&L for run lead joints in cast iron water mains, spigot and socket, pipes and fittings 200mm bore complete all as specified and as directed.

All as per item No. 48 above but 150 mm dia.

All as per item No. 48 above but 100 mm dia.

All as per item No. 48 above but 80 mm dia.

S & F in replacement of Non Return Valve 150 mm size all as specified and directed.

M & L for Cleaning and removing all scale and dirt, etc, from tanks and from mouths of circulating pipes, etc. of existing tanks of size exc 250 ltr but n exc 500 ltr complete all as specified and direted. (Note : Rate for Disinfection of tanks using bleeching powder after cleaning will be included in unit rate quoted)

All as per item No. 53 above but size of tank exc 500 ltr but n exc 1000 ltr

Supply and fixing CI fittings Bends,Taper ,Tee pieces (single & double branch) any type and angle/radius and straight conneting pieces but all ends flanged upto 150 mm bore complete all as specified and as directed.

Supply and fixing PVC insulated & PVC sheathed Submersible flate cable 6 Sqmm x 3 core copper conductor 1100 volt grade, ISI Marked, confirming to IS:694/2010, complete all as specified and as directed

S& Fof brass spindal for sluice valve of 200 mm complete all as specified and directed

S&F of brass spindal for sluice valve of 150 mm complete all as specified and directed

Supply only spun yarn (jute Yarn) complete all as specified and directed

Supply only carbon and graphite packing fibre (packing gallen for pump and valves) complete all as specified and directed.

Supply only Lead wool for caulking of CI pipe line/valve jointing complete all as specified and directed

Supply only Lead bar/pig for CI pipe line/valve jointing complete all as specified and directed

S & F of iron stair of required size at various locations with iron angle frame and steps complete all as specified and directed. (Note : Necessary fixing arrangement including PCC platform included in quoted rates)

M& L for double coat pure epoxy coatings and solvent-free epoxy coatings (water proof paint) inside water tank/sedimentation tank after cleaning, working hight upto 18 mtr complete all as specified and directed by Eng in charge.

Material and Labour for prepration of old painted steel surface over 10 cm birth or girth of any description upto working hight upto 18 mtr applying two coat of synthethic enamel paint over a coat of red oxide primer of SKY Blue / Red / Yellow / Black colour, high glossy finish, rust shield , Anti rust shield PU enamel , having quick drying time complete all as directed as per engineer-in-charge. Make Asian Paints (Apcolite rust shield) or equivalent in Narolac

Supply only MS nut bolt and washer of adequate size as specified complete all as specified and directed by Eng in charge.

Supply only U clamp heavy duty for steel wire rope clamping all as specified by EIC.

M&L for framed work for valve pit chamber cover made of Mild steel (MS) equal angle and MS sheet 2.8 mm thick including welding , cutting ,hinges , locking arrangments , painting including dismantling wrought iron or mild steel work of any description provided for valve pit chamber and for angle iron ladder of tank complete with and including two coat synthethic enamel paint high glossy finish over a coat of red oxide primer, of Make Asian Apcolite rust shield , Anti rust shield PU enamel.complete all as specified and directed

Neha Enterprise (BID ID -3344687)

SUMAN CONSTRUCTION (BID ID -3350877)

M/S Tapan Sur (BID ID -3343568)