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| 1 | Disconnection of inlet, outlet, and back wash connections from existing Iron Removal Plant, Pressure Feed Type with FRP vesels [Comprising of 01 (One) No.Oxidation Plant of overall size 680 mm dia. & 600 mm Height, and01 (One) No.Iron Removal Filter of overall size 2800 mm dia. & 2200 mm Height ]of 15000 GPH capacity, opening carefully the manhole/handhole covers, taking out old filteration media from inside the vessels and deposited at a distance n. exceeding 50 Meters,including cleaning the vessels internally by descaling washing down with water , including cleaning the external surfaces of vessels alongwith frontal pipings andincluding recharging of Filteration Media,refixing of PVC strainer etc as per OEM specifications and including reconnection of pipelines, refixing of manhole/handhole covers, testing and commissioning of IRP,including painting with one coat of black bituminous paintincluding preparation of surface suitable for drinking water inside the vessels complete all as specified and directedat Domestic Pump House.NOTE:-(i) Filteration Media required for recharging inside the vessels will be measured and paid seperately under respective items of this Schedule of Work. (ii) The cost of replacement of minor unserviceable parts viz. unserviceable PP stainers inside the IR Filter vessel and nuts, bolt, washers & Gasket in the manhole/handhole covers of vessels are deemed to be included in the quoted rate.(iii) Serviceable Filteration Media shall be staked properly and re used in the work. The unserviceable Filteration Media shall be removed from the site of work without any extra cost to the Dept.(iv) Paint should be checked and verified as \"\"Food Grade\"\" paint by SMC of AF Stn Purnea.(v) work should be carried out only in presence of JE E/M. |
| 2 | All as per Item No 1 here-in-before including notes therein but of only Iron Removal Filter of overall size 1000 mm dia. & 2300 mm Height ]of 2000 GPH capacity.complete all as specified and directedat Tech Pump House. |
| 3 | Removal of foreign matters, cleaning & washing properly , screening and grading of old gravels (Filteration Media) of size 1/8\" to 2\" complete all as specified and directed. Note:- Old serviceable gravels (Filtration Media) obtained from Serial Item No. 1 to 2here in before Shall be prepared for re-use. |
| 4 | Removal of foreign matters, cleaning & washing properly ,of old PVC Strainer complete all as specified and directed. Note:- Old serviceable PVC Strainer obtained from Serial Item No. 1 & 2 Here in Before Shall be prepared for re use. |
| 5 | Supplyof new filteration media sand (cleaned) of 20 x 40 mesh from Barakar, hard and resistant, quartz or quartzite, free from clay, fine particles, soft grains and dirt of every description,conforming to IS 8419, Part-I, complete all as specified as directed. |
| 6 | Supply only newPVC strainer for pressure filter as per existing size & shape.complete all as specified as directed. |
| 7 | Supply Only, Filtration Media Gravel , size1/8\" to 1/4\",consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind, conforming to IS 8419, Part-I, complete all as specified as directed. |
| 8 | Supply Only, Filtration Media Gravel , size1/4\" to 1/2\",consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind, conforming to IS 8419, Part-I, complete all as specified as directed. |
| 9 | Supply Only, Filtration Media Gravel , size1/2\" to 1.0\",consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind, conforming to IS 8419, Part-I, complete all as specified as directed. |
| 10 | Supply Only, Filtration Media Gravel , size1.5\" to 2\",consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind, conforming to IS 8419, Part-I, complete all as specified as directed. |
| 11 | Supply only Activated carbon media in IR plant as directed by Engr-in-Charge.complete all as specified as directed. |
| 12 | Supply Only, Manganese Dioxide (MnO2) media, approximate size 10 mm X 15 mm, with MnO2 contents minimum 65%, suitable for use in oxidation chamber, complete all as specified as directed. |
| 13 | Taking out existing submersible pump set of any capacity alongwith column pipe from bore well and lowering the same after repairs the pump setor adding the extra length of cable, column pipe, welding workor for development of tube well including disconnecting and re-connection of all electric & mechanical connection Note : (i) One lifting, & one lowering shall be measured one job in this item. (ii)Repair of pump set or adding extra length of cable ,column pipe, welding work or development of tubewell shall be measured and paid separately,complete all as specified as directed. |
| 14 | Material & labour for unscrewing of submersible pump from motor and rewinding of elctric motor 15/20 HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing/ cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge |
| 15 | Supply and fixing CI Butterfly valve including nut bolts washers of size 150 mm dia suitable for existingpressure filter including taking down unserviceable valves, ccomplete all as specified as directed. |
| 16 | All as per item No. 15 above butof 100 mm bore size,complete all as specified as directed. |
| 17 | Supply & fix only PVC insulated waterproof 3 core cable suitable for submersible pump set 1100 volts grade with standard copper conductor cable of size 6 sqmm including water proof jointing material complete all as directed by Engr-in Charge. Make- KEI/Polycab/Havells |
| 18 | Supply and fixing Water pressure gauge 0 to 10.6 kg/cm2 pressure including gauge cock of suitable size complete testing and commissioning including taking out U/S pressure gauge with or without cock any type, complete all as specified as directed. |
| 19 | Supply and replacement of SWR steel rope of size 8 mm including fixing double U clamps of suitable size complete all as directed by Engr-inCharge |
| 20 | Supply and fix in repairs MS ERW column pipe with flange of size 100 mm dia incliuding PVC conduit medium grade for cable complete all as specified as directed. |
| 21 | 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 completeincluding carrying the pump set to nearest repairing workshop including brought back after repair work complete all as specified as directed. |
| 22 | Taking down carefully electric driven centrifugal pump set (MAKE : Kirloskar brothers Ltd)15 HP capacity including MS channels framefrom foundation after disconnecting GI pipes/main electric supply from motor starter panel and keeping the MS channel frame at site ,Cleaning & greasing all moving parts andchanging gaskets before refixingcomplete all as directed by Engr-in-charge.NOTE : (i)Cost includescarrying the pump set to nearest repairing workshop including brought back after repair work (ii) Major parts to be replaced and paid seperately under respective items.(iii) Contractor to attend break down of pump & motor within 12 hrs of intimation. |
| 23 | Supply only the following spare parts of centrifugal pump setcomplete all as specified and as directed.(a). Pump shaft with impeller key and nuts suitable for 15 HP capacity type - KDS 1537+Make :- Existing make/KIRLOSKAR or equivalent make as approved . |
| 24 | (b) Cast iron impeller for 15 HP capacity pumptype - KDS 1537+as per sample. |
| 25 | (c ) Shaft sleeve DE/NDE |
| 26 | (d) Ball Bearing No. 6306 Make : TATA/SKF/NBC |
| 27 | (e) GM Bushing |
| 28 | (f) Fan blade (PVC) as per sample |
| 29 | (g) CI coupling set for centrifugal pump set including key lock and stud etc (as per sample). |
| 30 | Preparing Outer Surfaces of IR plant TANK of PRESSURE FEED FILTRATION PLANT comprising of OXIDATION PLANT, PRE –FILTER, IRON REMOVAL PLANT of 15000/10000/2000 GALLON Capacity, located at Domestic PUMP HOUSEand applying Two Coats of Synthetic Enamel Paint over a coat of primer(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. |
| 31 | M & L for taking out spindle of any size capacity of Sluice valve/Gate Valve, cleaning and threading under Lathe Machine by taking away to local market and re-fixing the same after making it functional to operate the valve complete all as specified as directed. |
| 32 | Material & labour for rewinding of electric motor 1 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 etctesting & commissioning complete all as specified as directed. |
| 33 | Comprehensive Maintenance/Servicingof Air Compressor assemblyby Cleaning the whole body & Air tank, Oiling, Greasing,Tightening of all nut bolts if required, Minor repairing to compressor Pump and Electric Motor including replacement of Spare Partslike 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-: Material/Spare require for replacement shall be measured and paid seperately under mentioned items. |
| 34 | Supply only the following spare parts of Air compressor assembly complete all as specified and as directed. (a) Air filter 3/4\" |
| 35 | (b) Washer CU |
| 36 | (c) Pressure gauge |
| 37 | (d) Bearing as per existing |
| 38 | (e)filter moisture seperator |
| 39 | (f) Gasket |
| 40 | (g) Fan Pulley |
| 41 | (h) VEE Belt size A2-67 |
| 42 | (i) Automatic pressure switch |
| 43 | (j) Copper Washet/pipe |
| 44 | M & L for preparation of old painted surface of Air Compressorequipment body such as 5 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 as directed. |
| 45 | M & L for dismantlingof u/s existingpump startertaking out all serviceable and unserviceable parts ,replacment of contactor,relay and other electrical equipment and resetting as per existing motor amp load includingrewiring complete all as specified as directed. |
| 46 | Supply and fix contactor MNX-9, including taking down complete all as specified as directed., Make:- L&T ABB/CG/Legrand. |
| 47 | Supply and fix contactor MNX-12, including taking down existing complete all as specified as directed., Make:- L&T/ABB/CG/Legrand. |
| 48 | M & L for checking and repairing stequa dosing setand replacing minor parts, reconnecting pipes and valves and refilling with stequa 411 AE refill set of 25 pcs and checking the quality of water before/after dosing of chlorine complete all as specified as directed. Make:- As per existing |
| 49 | M&L for six stage cleaning and sterilization of inside the RCC/Underground/semi underground/Over head PSS tanksof following capacity with the help of Non-toxic, Bio-degradable, Eco-friendly Anti-bacterial Agent followed byUV Radiation to make the tank totally safe.NOTE : The cleaning work to be carried out by any approved company expertise in Tank Cleaning.(a). First Stage is to drain out the water by using exit valve or our own high capacity dewatering system or by own arrangement approved by Engr -in -Charge.(b). Second stage is cleaning all the algae formation and removing the accumulated silt from bottom bed and side walls by brushing with nylon brush or scrubbing the walls of the tanks or removing other sticky or foreign materials from adhering surfaces and washing inside surfaces with TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company.(c). Third stage is fresh water cleaning by high speed jet pump with a pressure of 5 psi(d). Fourth stage and first bacteria screening and degermification by using TERBAC-G5/ Inohor-5/NB-10 a Laboratory certified branded halogen compound.(e). Fifth stage is cleaning the floor of water tank by heavy duty industrial vacuum cleaner.(f) . Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray Ejector covering 360 degree within the tank and kills all suspended bacteria.(g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified, branded strong oxidizing agent TERBAC-G65 . |
| 50 | NOTE:-(i)The contractor will be responsible for removal of any honeycomb /Beehive giant/hornet comb on the surface of OHT, removal before cleaning of the tank and the same will be included in above quoted rates. Contractor shall also be responsible for cleaning the vegetation of surrounding area to distance of minimum 3 mtr for UG Sump/OHT and removing the waste material not exceeding 50 Mtr within the same quoted rates.(ii) PAINTINGS OF TANK & INFORMATION BOARD - AFTER COMPLETION OF CLEANING OF EVERYTANK WITH TWO COATS SYNTHETIC ENAMEL PAINT (1ST GRADE QUALITY) OR ALUMINIUM PAINT FOR PS TANK(a) INCLUDING WRITING LETTERS & FIGURES BOLDLY AND SOLIDLY(b) TANK CLEANED ON _____( DATE OF CLEANING) &(c) CA NUMBER(d) NAME OF CONTRACTOR(e) HAVING A HEIGHT OF ALL LETTERS 10 CM WITH OBLITERATING THE OLD ONE AND(f) PROVIDE CERTIFICATE CONFIRMING THE COMPLETION OF STERILIZATION OF WATERTANKS MENTIONING THE NAME OF STATION AND DATE OF CLEANING.(iii) ALL THE CLEANING & STERILIZATION STAFFS SHOULD BE UNDER ACCIDENTALINSURANCE COVERAGE.)(iv) OUTLET PIPE OF OHT SHOULD BE PLUGGED BEFORE CLEANING THE OHT TO AVOIDENTERING SCALES AND THE SAME SHALL BE RECONNECTED AFTER CLEANING THE OHTAND THE QUOTED RATE IS DEEMED TO INCLUDE FOR THE PROVISION . |
| 51 | (v) CONTRACTOR WILL BE RESPONSIBLE FOR RECTIFICATION OF COMPLAINTS OCCURREDDURING CLEANING THE TANK IE. NO WATER IN TANK/OVER FLOW DUE TO BROKEN OFFLOAT VALVE/ BLOCKAGE TO BE INCLUDED IN QUOTED RATE.(vi) ARRANGEMENET OF WATER REQUIRED DURING THE CLEANING WILL BE RESPONSIBILITY OF THE CONTRACTOR of following capacities given below:- |
| 52 | (a) Over Head RCC Tank 50000 Gallons |
| 53 | (b) Under Ground Sump 25000 Gallons |
| 54 | (c) Over Head PS Tank 20000 Gallons |
| 55 | Dewatering & Cleaning of Static Water Tank of any capacity by pumping out stagnant water and removing all fungus muds and sludge, de-scaling vegetation on the inside of fire tank/open well and white washing (Two Coat) and one coat of cement base paint etc including Painting of iron grill with synthetic enamel paint and writing date of cleaning and other particulars as per directionCleaning the surroundings area of the open well to a distance of 3 mtrs circumstance including cutting of grass digging out roots, filling holes and levelling around and removing waste materials to a distance not exceeding 50 Mtrs,complete all as specified and as directed. |
| 56 | Supply & Fixing in repair of 48 W LED aviation obstruction light on OH tank (Height between 45-50 ft)with all necessary connected items including 19238 XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 4 sq. mm 3 Core (30 mtr appx.)complete all as specified and directed. |
| 57 | S&F in replacemen tfor Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required forAluminium Strip 25 x3 mm above ground along outer surface of OHT,complete all as specified and as directed. |
| 58 | M&L for air termination rod made of aluminium with 12mm rod 300mm long complete set fitting on the top of OHT, complete all as specified and as directed. |
| 59 | Supply and Fix test point terminal block made of gun metal or phosphorous bronze , size 75 X 75 X 25 mm , drilled and screwed including 3 Nos. 8 mm dia. 25 mm long hexagonal head screws in repair includingMS box 2 mm thick of suitable size to be mounted on wall with fast nut for protection of test point terminal complete all as specified and directed. |
