Providing Operation and Maintenance Service of Water Supply System for Old and New Water Treatment Plant, Sewage Storage Tank, CISF Barracks, Bore wells and Open wells at various locations, RO Plant and DeWatering System.

Amount

Providing Operation Services of Water Supply System in Operational area at Cowl bazaar & New Fire station pump House, Cargo & MES open well, Runway - 25 End, Old Fire station and Old Pump Houses etc. as per inventory in "Annexure -A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of preventive & normal maintenance records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned Water Supply System equipment’s, Electric motor driven pump sets, borewells, open wells, MCC & starter panels and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For First year

Providing Operation Services of water treatment and supply system at Old Water Treatment Plant (WTP) associated borewells etc. as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring output treated water quality to specifications, chemical testing / sample analysis / corrective actions by chemist, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of lab, normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services including supervision of all above activities shall be ensured, covering Water Treatment and Supply System equipment’s, Electric motor driven pump sets, associated borewells, open wells, Sumps, MCC & starter panels and control panels round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For First year

Providing Operation Services of water treatment and supply system at New Water Treatment Plant (NWTP) including Reverse Osmosis (RO) Plant of capacity 14 cum/hr x 2 nos. with all relevant water sources as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring output treated water quality to specifications, chemical testing / sample analysis / corrective actions by chemist, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of lab, normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services including supervision of all above activities shall be ensured for WTP and RO Plant equipment’s, Electric motor driven pump sets, associated borewells, open wells, Sumps, MCC & starter panels and control panels round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For First year

Providing Operation Services of water supply system in CISF Barracks pump House associated borewells etc. as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring serviceability / satisfactory working condition of the systems, maintenance activity updation of preventive & normal maintenance records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned Water Supply System equipment’s, Electric motor driven pump sets, borewells, drain sump, MCC & starter panels and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For First year

Providing Operation Services of De-watering and Sewage pump sets installed at various location at basement of New Domestic and New International Terminal Buildings and connecting tunnel as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, monitoring & ensuring serviceability of the systems, maintenance activity as per attached "Annexure-A2" normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned de-watering and sewage pump system, Electric motor driven pump set, MCC & starter panel and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For First year

Providing of day-to-day, preventive maintenance, installation, dismantling, rectification, Repair Service of all Electro-Mechanical Inventory with water supply division covering, Mechanical, Electrical and Plumbing works involved, covering the entire scope of preventive maintenance, repair activities indicated but not limited to special condition of contract, technical specification, maintenance & operation manual of AAI, OEM manuals ensuring serviceability / satisfactory working of all water supply system equipment on all days including Sundays / holidays attending minor & major faults, cleaning, upkeeping of the installations , preventive maintenance (as per "Annexure-A2)" related records, log books, timely appraising equipment health status, repairs, replacements (if any) etc. reporting as and when required as per direction of Engineer-In-Charge etc. complete as per the site requirement.

For First year

Testing of following water samples from Government laboratory every month and production of Test Report to the Engineer-In-Charge.

Samples: i) Old WTP Raw Water (ii) Old WTP Treated Water (iii) New WTP Domestic Water iv) Domestic (SHA) Terminal (NDT) (v) New International (SHA) Terminal (NIT)

(i) to (v) - One job

For First year

Testing of following sewage samples from existing STP at State / Central Govt. Laboratary every month and submit the original analysis test report to Engineer -In-charge etc. Complete as required.

Samples: (i) Sewage Treated Water (1.2 MLD & 2.25 MLD STP)

(i) One Job

For First year

Providing Services of one number New Mahindra Bolero/Mahindra Scorpio vehicle alongwith driver for distance upto 60 KM/day or 1800 KM/month on round the clock basis for day-to-day maintenance services and attending Inspection/Preventive & Break down maintenance for Water Supply Systems Plant rooms, Pump rooms on both the city side and apron side at Chennai Airport.

For First year

SUB HEAD - II (ARC)

Supply and Installation of RO filter catridge for RO plant etc. complete as required

2.5" OD X 1" ID X 40" L

2.5" OD X 1" ID X 20" L

Replacement of existing Damaged 8" dia RO-Filter Membrane (6 Nos/Housing) for RO plant at New Water Treatment Plant etc complete as required.

Chemical Cleaning and overhauling of filter membranes of RO system unit (3Housing/plant) of capacity 14 cum/hr. with required chemicals in WTP to bring the water quality to the desired level as specified in technical specification etc complete as required.

Cleaning of Stainless Steel RO water storage tank (30,000 Ltr) using necessary chemicals, rinse clean and draining out complete etc as required.

Dismantling, overhauling and servicing of all type of centrifugal pumpsets including replacement of pump spares (such as impeller, Gland/ mechanical Seal, Gland packing, set of bearings, shaft sleeve, terminal board, terminal box, gasket, liquid reflector, impeller lock nut, cooling fan etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

Upto 3 HP

5 HP to 10 HP

above 10HP upto 20 HP end suction pump.

above 10HP upto 20 HP Split case pump

Dismantling the existing centrifugal pumpset of following capacity including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

Upto 1.5HP

above 1.5HP upto 3HP

above 3HP upto 10HP

above 10HP upto 20HP

Dismantling, lifting, lowering, painting and re-installation of existing sewage submersible pumpset of following capacity including servicing, replacement of all pump spares (such as Impeller, Mechanical seal, Cutter, Set of ‘O’ rings, Oil seal, Oil for seal cooling etc.,) and Testing, Commissioning etc complete as required.

upto 1 HP

above 1HP upto 3HP

above 3HP upto 7.5HP

Dismantling, lifting, lowering, painting, rewinding and re-installation of existing sewage submersible pumpset motor of following capacity, including replacement of motor spares (if any required), rebate for wound out copper and Testing, Commissioning etc complete as required.

Upto 1 HP

above 1HP upto 3HP

above 3HP upto 7.5HP

Dismantling, lifting, lowering, painting, re-installation of sewage submersible pumpset from existing sewage well including rewinding , servicing, replacement of all spares (such as Impeller, Mechanical seal, Cutter, Set of ‘O’ rings, Oil seal, Oil for seal cooling, Set of bearings etc), rebate for wound out copper and testing, commissioning, Complete etc as required.

Above 7.5 HP upto 12.5HP- At STP Collection Well and Grid 72

30 HP - At IAD Residential Colony

Lowering of Borewell Submersible pump sets for New borewell (upto 200 feet depth) including couplings, pipe fittings (nipple, elbow, flange valves, clamps etc) lowering and fixing of pipes, submersible cables, cable panel connections etc., complete as required. (Note: Borewell Pump, GI pipe and fittings shall be supplied by AAI)

Lifting and Lowering of Borewell submersible pumpset (upto 200 feet depth) from existing borewell of 2"/1.5" dia G.I pipe including cutting, re-threading of existing pipes, pipe fittings (nipple, elbow, flange valves, clamps etc) and installations of submersible pump set (Provided by AAI) along with submersible cables, cable and panel connections etc., complete as required.

Servicing of existing Borewell submersible pump of following capacity including replacement of all pump spares (such as Impeller, Diffusers, Pump Shaft, Set of shaft sleves, Retainer ring, Pump Coupling etc) and re-assembling the same etc complete as required.

Upto 3 HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Rewinding and servicing of Borewell Submersible Pump -motor, replacement of spares (if any), including rebate for wound out copper of following capacity etc complete as required.

Upto 3 HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Servicing of existing Borewell submersible pump-motor of following capacity including replacement of all motor spares (such as Thrustpad, Thrust bearing assembly, Diapharam, Set of keys, Oil Seal, Diapharam Plate etc.) and re-assembling the same etc complete as required.

Up to 3HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Dismantling,lifting, lowering, painting and re-installation of openwell/ sump submersible pumpset including servicing, re-threading, replacement of pump spares (such as Impeller, Oil Seal, Thrustpad, Thrust bearing assembly, Diapharam, Gasket , Impeller locknet, Strainer, Diapharam Plate etc.,) and installation, testing, and commissioning of the same complete etc, as and when required.

Upto 3HP

above 3HP upto 7.5

above 7.5HP upto 10HP

above 10HP upto 15HP

Dismantling, lifting, lowering, painting, rewinding and re-installation of open well submersible pumpset motor of following capacity including pipes & plumping accessories, rebate for wound out copper, and Testing, Commissioning etc complete as required.

Upto 3HP

above 3HP to upto 7.5

above 7.5HP upto 10HP

above 10HP upto 15HP

Dismantling, Lifting, lowering, painting and re-installation of all types of De-watering submersible pump sets of following capacity including rewinding, servicing, replacement of spares (shaft seal, O ring, Bearings etc.) for pump & motor,rebate for wound out copper, testing and commissioning etc., complete as required.

Upto 3HP

Dismantling, overhauling and servicing of all type of HPS vertically mounted centrifugal pump sets/RO High pressure pumpset (Grundfos Make) including replacement of pump spares (such as impeller,shaft seal, 'O' ring, Head spring, bearings etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

RO High Pressure Pump-20 HP

RO Backwash (Chemical wash) Pump-5.5HP

Domestic HPS Pump-25HP

RO HPS Pump-1.5HP

Dismantling the existing HPS vertically mounted centrifugal pump sets/RO High pressure pumpset(Groundfos Make) including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

RO High Pressure Pumpset Motor -20HP

RO Backwash (Chemical wash) Pumpset Motor -5.5HP

Domestic HPS Pumpset Motor -25HP

RO HPS Pumpset Motor -1.5HP

Dismantling the existing centrifugal pump sets (Groundfos Make) including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

PSF Feed Pump-15HP

PSF Back wash -15HP

Dismantling, overhauling and servicing of all type of de-watering pump sets (Grundfos make) including replacement of pump spares (Such as impeller, shaft seal, O ring, head spring, bearing etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

De-watering Pump -1.5HP

De-watering Pump -2.5HP

De-watering Pump -3HP

De-watering Pump -25HP

Dismantling, overhauling and servicing of all type of sewage pump sets (Grundfos make) including replacement of pump spares (Such as impeller, shaft seal, O ring, head spring, bearing etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

Sewage Pump -2.5HP

Sewage Pump -3HP

Providing man power to attend any urgent / emergency work with necesssary tools and plants on round the clock basis etc complete as required.

Highly skilled labour

Skilled labour

Semi skilled labour

Unskilled labour

Providing Excavater (JCB) including Operator for emergency / un anticipated break down / maintenance work, cable works etc., complete as required.

Providing Tractorwith Trolley including driver and loaders-3, loaders for shifting of debris / wastes from water supply system locations, pump houses etc. to waste dump yard or for emergency / un-anticipated break down / maintenance works etc as required.

Providing One Welder alongwith Electric welding machine and welding rods for carrrying out welding works during any urgent Preventive Maintenance/ Breakdown Maintenance /Emergency work as and when required.

SUB HEAD - III (Maintainance works)

Supply of Activated Sludge (MLSS) to Chennai Sewage Treatment Plant at Chennai Airport as and when required (Note: 1 Lot of MLSS = 9000 Litres)

Provision of fiberglas re-inforced (FRP) lining on existing MS/GI pipe line external surface complete with cleaning,wrapping, fixing with binding components, pigment compund layer as per technical specification complete etc as required.

Mechanized Cleaning of Clarifier tank including disposal of silt and rubbish etc complete as required as per the direction of Engineer-In-Charge. The cleaning shall consist of following operations: 1. De-watering of sump. 2. Entire surface area (walls, floor etc) of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with high pressure water jet. 3.Wall painting of entire clarifier surface inside and outside with approved paint to achieve even shade and color. 4.Painting of all metallic parts of the reactor clarifier-Detention Hood, Draft tube, Drive wheel (Iylam), clarifier scrapper arm, Bridge, Impeller, staircase etc after through scrapping, Sodium hypo treatment of submerged parts and replacing the rusted nut, bolt washer, scrapper blade etc., complete as per the site requirements.

Mechanised Cleaning & de-silting of sewage collection well using compressor and associated equipment including dosing of stabaliser chemical for dilution of sludge and disposal of left out sludges away from Airport premises etc., complete as required.

STP Collection well at 2 MLD STP-(10 depth X 14 Mtr Dia)

Grid-72 well- (8 X 9 X 6 depth Mtr)

Residential colony-sewage wells i) 2.36 dia X 7 Mtr Depth - 2No ii) 3.56 dia X 7.9 Mtr Depth -1No iii) 5 dia X 8 Mtr Depth-1No Sl.No.i) to iii) = 1Job

Cleaning of sewage (sumps of depth 10 to 15 feet, size from 500 Cubic feet to 1000 cubic feet) in Domestic and International terminal basement with mechanised de-silting compressor, sump scrubbing, debris removal and disposal of left out sludges away from Airport premises including vehicle, as per direction of Engineer-In-Charge etc complete as required.

Sewage sump with depth 10 to 15 feet -all size (500 Cubic feet to 1000 cubic feet)

Supply and Installation of various Mild Steel structure fabricated using single section MS Channel/angle/flat/bar etc including cutting, welding, drilling, fixing in position using appropriate fasteners, grinding, painting with approved steel primer and two coats enamel paint etc. complete as required.

Brush/Spray Painting of various metal surfaces after cleaning/scrapping the surface with emery paper and applying 02 coat anti-corrosive metal red-oxide primer & 2 coats Enamel paint of approved brand and colour to give an even shade complete etc as required (Paint Colour to be decided by Engineer-In-Charge).

Repair of existing 275 m3/Hr Kay Make twin-lobe air blowers including dismantling, servicing, replacement of damaged spares (roller bearing, rings, O-ring, oil seal, gasket, shaft, bearing collar, suction air filter, pressure guage, pressure relief valve, NRV, belt pulley with machining, bolts, nuts, washer etc) re-alignment, installation, testing and commissioning at New Water Treatment Plant etc complete as required. (Note: Repair of 01 Blower is considered as 01 Job.)

Supply and replacement of 100mm dia pressure guages, 0-200PSI, H.Guru make or as per the approved make, specification including welding of GI nipple and necessary connection as required & as per direction of Engineer-In-Charge.

Supply and fixing of non-corrosive Fiberglass Reinforced Plastic (FRP) molded grating (Load : atleast 500Kg/Sq.mtr) walkway of Mesh size 38mm X 38mm , Height: 38 mm, 3 mm thickness Chequered plate molded onto FRP Grating, With Rib thickness 5/7 mm on existing sump including fixing of newly fabricated bottom Frame using MS L-Channel 50mm X 50mm X 5mm, painting of metal surface with 01 coat anticorrosive metal primer and 02 coats enamel paint, providing of MS/GI hooks for lifting and civil modification works (CC chipping, filling, finishing) for proper insertion & seating etc. complete as required.

Supplying, fixing, testing and commissioning of Butterfly Valve (Manual) with CI body,SS disc,SS stem, nitrile/EPDM rubber seal,O - ring & PN 16 pressure rating alongwith bolt, nut ,washer as per following sizes etc including dismantling the existing valve complete as required.

Butterfly Valve-200 mm Dia

Butterfly Valve-150 mm Dia

Butterfly Valve- 125 mm Dia

Butterfly Valve- 100 mm Dia

Butterfly Valve- 80 mm Dia

Butterfly Valve- 65 mm Dia

Butterfly Valve- 50 mm Dia

Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/recess including cutting the wall and making good the same in case of recessed conduit as required.

Replacement of full pressure tank (Tank.Bladder,drain kit,flange etc) including dismantling the existing tank and installation of following capacity tank alongwith providing necessary pipeline connection for satisfactory working of Hydro Pneumatic Syatem (HPS) at various location of Chennai Airport etc complete as required.

Wellmate pressure tank WM9 or equivalent

Wellmate pressure tank WM35 or equivalent

Wellmate pressure tank WM80 or equivalent

Replacement of following Pressure Tank Bladder including removing of damaged bladder and providing New Bladder,filling air upto required pressure alongwith providing necessary pipeline connection for satisfactory working of Hydro Pneumatic Syatem (HPS) at various location of Chennai Airport etc complete as required.

Wellmate pressure tank WM9 or equivalent

Wellmate pressure tank WM35 or equivalent

Wellmate pressure tank WM80 or equivalent

Zilmat ultra pro 500LV pressure Tank or equivalent

Periodical health checkup of entire Hydro Pneumatic System on Quarterly basis by OEM M/s.Grundfos or OEM authorized agency and attending minor faults of Equipment’s, filling of air in Pressure tank using compressor upto required presurre,ensuring 100% Serviceability/ Satisfactory Working Condition of the system as per Standard Manufacturers' Practices, replacement of spares which will be supplied by AAI and submission of Service Reports etc as required and as per direction of Engineer-In-Charge. Note: Health check up of 01 HPS system will be treated as 01 Job

Maintenance of 62.5 KVA Cummins Make DG Set mounted on Grundfos make dewatering Trolley by OEM/OEM Authorised Service Dealer, carrying out Routine/Preventive Maintenance on Quarterly Visit Basis, attending All Breakdown Maintenance Calls, carrying out "B" Check of Engines and attending minor faults of Equipment’s, ensuring 100% Serviceability/ Satisfactory Working Condition of the Engine, as per Standard Manufacturers' Practices as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge.

Quarterly visit Charges/ DG coupled Pumpset

B Check Charge/ Engine

Maintenance of 156HP Kirloskar make dewatering Pumpset alongwith Diesel Engine by OEM/OEM Authorised Service Dealer, carrying out Routine/Preventive Maintenance on Quarterly Visit Basis, attending All Breakdown Maintenance Calls, carrying out "B" Check of Diesel Engines and attending minor faults of Equipment’s, ensuring 100% Serviceability/ Satisfactory Working Condition of the Engine, as per Standard Manufacturers' Practices as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge.

Quarterly visit Charges/Dewatering Pumpset

B Check Charge/ Engine

Maintenance & Servicing of following diesel engine operated dewatering pumpset and carrying out 'B' Check as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge

5 HP Kirloskar Diesel engine coupled dewatering pump

5 HP Grundfos Diesel engine coupled dewatering pump

Calibration of Digital Electro-Magnetic Flow meter available at various locations from the certified agency and submitting report to Engineer-In-Charge

Supplying and laying of following size DWC HDPE pipe ISI marked along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc. direct in ground (75 cm below ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc. , complete as required

40mm Dia DWC HDPE Pipe

50mm Dia DWC HDPE Pipe

Providing and Fixing of 'B' Clase GI pipe complete with GI fittings of following sizes including cutting, welding, threading and suitable size flanges etc. complete as required.

2 inch Dia 'B' Clause GI Pipe

3 inch Dia 'B' Clause GI Pipe

4 inch Dia 'B' Clause GI Pipe

5 inch Dia 'B' Clause GI Pipe

6 inch Dia 'B' Clause GI Pipe

8 inch Dia 'B' Clause GI Pipe

10 inch Dia 'B' Clause GI Pipe

12 inch Dia 'B' Clause GI Pipe

Sub Head-IV Supply of Spares

Supply of following Plumbing accessories/Submersible Pump accessories for various installations & locations etc as and when required.

50mm B-Class GI Pipe (10 feet) (Threaded both Ends) Tata make Only

2 inch coupling -100 mm long (Threaded Coupling)

50 mm X 12 mm C- clamp set with nut bolt.

GI elbow-2" (50 mm) Threaded

GI Flange-2" (50mm) Threaded

GI Pipe Nipple-2" X 12" long

Water Meter-2" (50 mm) Flanged End

GI flexible Conduit PVC coated-2"

Water Level Controller (Make: L&T Model:XM81053OOOO or equivelant)

Water Level Controller Probes (Make:L&T Model: XM81076OOOO or equivelant) (Set of 6Nos)

NRV wafer type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16

150 mm Dia

100 mm Dia

80 mm Dia

50 mm Dia

NRV Dual Plate type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16

150 mm Dia

100 mm Dia

80 mm Dia

NRV:MOC-Gun Metal of approved quality (screwed end) :

40 mm nominal bore (Horizontal)

50 mm nominal bore (Horizontal)

80 mm nominal bore (Horizontal)

Gate Valve:MOC-Gun Metal with C.I. wheel of approved quality (screwed end) :

80 mm nominal bore

50 mm nominal bore

40 mm nominal bore

25 mm nominal bore

Dummy Flange:MOC-Mild Steel with suitable Nuts & Bolts etc.

6" MS Dummy Flange-20mm Thick

4" MS Dummy Flange-20mm Thick

Supply of hand lever operated Cast Steel ball valve approved quality (screwed end) :

2" Ball Valve

1" Ball Valve

3/4" Ball Valve

Supply of float switch sensor for water level controller approved Quality

Float Switch

Supply of Flat Three Core PVC Insulated & PVC Sheathed Industrial Cable for Submersible Pump Motors 1100 Volts, conforming to IS: 694, suitable for installation with Deep Borewell pump of suitable length etc., as required.

2.5 Sqmm X 3 Core flat cable

4 Sqmm X 3 Core flat cable

6 Sqmm X 3 Core flat cable

Supply of following panel board starter suitable to operate with 415 V, 50 Hz, 3 phase AC power supply various installations & locations etc as and when required.

3HP/2.2 KW DOL Starter Panel

7.5HP/5.5KW Star-Delta Starter Panel

Supply of following panel board starter suitable to operate with 230 V, 50 Hz, 1 phase AC power supply various installations & locations etc as and when required.

1.5HP DOL Starter with Auto level controller

Supply of Borewell type Submersible Pumpset of Suitable rating, water filled cooling type, with SS strainer, SS Body,Noryl Impellers using anti-friction bearing, energy efficient type operated on 415V, 3 Phase,50Hz power for installation into 6'' dia borewell including loading, unloading at site complete etc as required. (Maximum borewell depth 250 feet)

5HP 3Phase - Borewell pump (Model No:KS4D 5025, Make: Kirloskar)

3HP 3Phase- Borewell Submersible pump (Model No:KS4D 3017, Make: Kirloskar)

Supply of Borewell type Submersible Pumpset of Suitable rating, water filled cooling type, with SS strainer, SS Body, Noryl Impellers using anti-friction bearing, energy efficient type operated on 230V, 1 Phase, 50Hz power for installation into 4'' dia borewell including loading, unloading at site complete etc as required. (Maximum borewell depth 100 feet)

1.5HP 1Phase- Borewell Submersible pump (Model No:KU4-0318S, Make: Kirloskar)

Supply & fixing of following Hydro Pneumatic system spares for various location as and whwn required.

Drain Kit for WM9 Pressure Tank

Drain Kit for WM35 Pressure Tank

Flange for Zilmat ultra pro pressure Tank

Multi pump control CU352

IO351B Module digital/analog

R core transformer 100VA

R core transformer 150VA

Pressure Transmitter 0-16 Bar

Supply of following size of butterfly valve for Hydro Pneumatic System as and when required

200 mm Dia Butterfly valve

150 mm Dia Butterfly valve

100 mm Dia Butterfly valve

50 mm Dia Butterfly valve

40 mm Dia Butterfly valve

Supply of spares for 156HP Kirloskar make Diesel Generator Trolley Mounted De-watering Pumpset etc complete as an when required.

Impeller Nut

Shaft Sleeve

Set of Keys

Set of Fastener

Set of Bearing

Set of Gland Packing

Set of Gasket

Set of Oilseals

Set of Ring

Supply of pulse lite 12V, 65 AH, battery complete as required. Make: Cummins

Supply of 12V, model: XP1800 Exide battery complete as required.

Supply of spares for 5HP Grundfos make Diesel Generator Trolley Mounted De-watering Pumpset etc complete as an when required.

Maintenance Kit for Hartz Engine

Supply of following CPVC pipe accessories etc complete as an when required.

Elbow -50 mm

Elbow -40 mm

MTA -50 mm

MTA -40 mm

FTA -50 mm

FTA -40 mm

Long bend -50 mm

Long bend -40 mm

Sub head - V Supply of Chemicals

Supply of following chemicals for water treatment plant and tertiary treatment plant to be supplied as and when required as per site requirement.

Per Year requirement

Solid Dosing chemical

Hydrant Lime 80% concentration

Dolomite 70% concentration

Soda Ash 98% concentration

Liquid Dosing Chemicals

Hydro Chloric Acid 35% concentration

Sodium Hypo Chlorite 6% concentration

Aluminium sulphate 24% concentrate (Alum)

Test Kit

Hardness Test kit-atleast 250 sample (Aquasol AE-211 or equivalent)

Chloride Test Kit-atleast 300 sample (Aquasol AE-203 or equivalent)

Testing Regants, consumables

Universal Indicator solution PH 4.0-11.0

PH Indicator Paper

Chemicals for RO Plant (14 Cum/Hr)

R.O. Antiscalant

Sodium Meta Bi Sulphate (SMBS)

Supply of Bioculture chemical for dilution of sludge in sewage collection wells and Sewage Sumps etc complete as required.

Super24 Bioculture

Oxysuper

Supply of Nanozyme Wastewater Treatment Culture chemical for dilution of sludge in sewage collection open well etc complete as required.

Nanozyme-Bet-STP-9013

Nutrition-Bet-Nutri-9003

Supply of stabilizer chemical for dilution of sludge in sewage collection open well etc complete as required.

Sub head - VI Replacement of Filtration media

Replacement of outdated filter media in Pressure sand filter (PSF-90 Cum/Hr) including removal of old outdated media, replacing all strainer nozzles, rinse-cleaning, application of thinner,industrial marine grade epoxy painting, refilling of different gradient media (pebbles, silex,sand) in layers as per standard design and disposal of unserviceable media away from chennai airport etc as required. PSF Vessel: 3100 Ø X 1850 HOS

Sub head - VII Contingency

Supply of following accessories for contigency/Emergency situations etc complete as required.

PVC Flexible Green Hose-4"

PVC Green Hose-3"

PVC Green Hose-2"

Fire Hose-4"

Stainless Steel Hose Clamp-4"

Stainless Steel Hose Clamp-3"

CI Foot valve-3"

CI Hose collar-3"

Supply of 3HP dewatering submersible pump (Model - STPM 32-18. Make - Crompton Greaves Ltd) suitable to operate for 415 V, 3 Phase, 50 Hz, AC power supply and Vortex type impeller, motor housing SS304, double mechanical seal (SiC+Carbon-Ceramic) with discharge of 300 LPM @ 12 Meter Head, non-clog suitable for continuous/intermittent operation in submerged condition, particle handling size of minimum 35mm with starter panel and standard accessories i.e. discharge elbow including gaskets nut bolts, screws, washer including loading, unloading at site complete etc., as required.

SUB HEAD - I (AMC)

Providing Operation Services of Water Supply System in Operational area at Cowl bazaar & New Fire station pump House, Cargo & MES open well, Runway - 25 End, Old Fire station and Old Pump Houses etc. as per inventory in "Annexure -A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of preventive & normal maintenance records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned Water Supply System equipment’s, Electric motor driven pump sets, borewells, open wells, MCC & starter panels and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For Second year

Providing Operation Services of water treatment and supply system at Old Water Treatment Plant (WTP) associated borewells etc. as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring output treated water quality to specifications, chemical testing / sample analysis / corrective actions by chemist, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of lab, normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services including supervision of all above activities shall be ensured, covering Water Treatment and Supply System equipment’s, Electric motor driven pump sets, associated borewells, open wells, Sumps, MCC & starter panels and control panels round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For Second year

Providing Operation Services of water treatment and supply system at New Water Treatment Plant (NWTP) including Reverse Osmosis (RO) Plant of capacity 14 cum/hr x 2 nos. with all relevant water sources as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring output treated water quality to specifications, chemical testing / sample analysis / corrective actions by chemist, ensuring serviceability / satisfactory working condition of the systems, maintenance activity as per attached "Annexure-A2" updation of lab, normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services including supervision of all above activities shall be ensured for WTP and RO Plant equipment’s, Electric motor driven pump sets, associated borewells, open wells, Sumps, MCC & starter panels and control panels round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For Second year

Providing Operation Services of water supply system in CISF Barracks pump House associated borewells etc. as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, ensuring serviceability / satisfactory working condition of the systems, maintenance activity updation of preventive & normal maintenance records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned Water Supply System equipment’s, Electric motor driven pump sets, borewells, drain sump, MCC & starter panels and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For Second year

Providing Operation Services of De-watering and Sewage pump sets installed at various location at basement of New Domestic and New International Terminal Buildings and connecting tunnel as per inventory in "Annexure - A1" covering the scope of activities given in special condition of contract and technical specification, attending faults, monitoring & ensuring serviceability of the systems, maintenance activity as per attached "Annexure-A2" normal & preventive records, log books as required etc. and cleaning, upkeeping on all days. These services should be ensured for above mentioned de-watering and sewage pump system, Electric motor driven pump set, MCC & starter panel and control panels on round the clock (Three Shift i.e.Pershift 8 Hrs) on all days including Sundays / holidays as per site requirement etc. complete as required.

For Second year

Providing of day-to-day, preventive maintenance, installation, dismantling, rectification, Repair Service of all Electro-Mechanical Inventory with water supply division covering, Mechanical, Electrical and Plumbing works involved, covering the entire scope of preventive maintenance, repair activities indicated but not limited to special condition of contract, technical specification, maintenance & operation manual of AAI, OEM manuals ensuring serviceability / satisfactory working of all water supply system equipment on all days including Sundays / holidays attending minor & major faults, cleaning, upkeeping of the installations , preventive maintenance (as per "Annexure-A2)" related records, log books, timely appraising equipment health status, repairs, replacements (if any) etc. reporting as and when required as per direction of Engineer-In-Charge etc. complete as per the site requirement.

For Second year

Testing of following water samples from Government laboratory every month and production of Test Report to the Engineer-In-Charge.

Samples: i) Old WTP Raw Water (ii) Old WTP Treated Water (iii) New WTP Domestic Water iv) Domestic (SHA) Terminal (NDT) (v) International (SHA) Terminal (NIT)

(i) to (v) - One job

For Second year

Testing of following sewage samples from existing STP at State / Central Govt. Laboratary every month and submit the original analysis test report to Engineer -In-charge etc. Complete as required.

Samples: (i) Sewage Treated Water (1.2 MLD & 2.25 MLD STP)

(i) One Job

For Second year

Providing Services of one number New Mahindra Bolero/Mahindra Scorpio vehicle alongwith driver for distance upto 60 KM/day or 1800 KM/month on round the clock basis for day-to-day maintenance services and attending Inspection/Preventive & Break down maintenance for Water Supply Systems Plant rooms, Pump rooms on both the city side and apron side at Chennai Airport.

For Second year

SUB HEAD - II (ARC)

Supply and Installation of RO filter catridge for RO plant etc. complete as required

2.5" OD X 1" ID X 40" L

2.5" OD X 1" ID X 20" L

Replacement of existing Damaged 8" dia RO-Filter Membrane (6 Nos/Housing) for RO plant at New Water Treatment Plant etc complete as required.

Chemical Cleaning and overhauling of filter membranes of RO system unit (3Housing/plant) of capacity 14 cum/hr. with required chemicals in WTP to bring the water quality to the desired level as specified in technical specification etc complete as required.

Cleaning of Stainless Steel RO water storage tank (30,000 Ltr) using necessary chemicals, rinse clean and draining out complete etc as required.

Dismantling, overhauling and servicing of all type of centrifugal pumpsets including replacement of pump spares (such as impeller, Gland/ mechanical Seal, Gland packing, set of bearings, shaft sleeve, terminal board, terminal box, gasket, liquid reflector, impeller lock nut, cooling fan etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

Upto 3 HP

5 HP to 10 HP

above 10HP upto 20 HP end suction pump.

above 10HP upto 20 HP Split case pump

Dismantling the existing centrifugal pumpset of following capacity including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

Upto 1.5HP

above 1.5HP upto 3HP

above 3HP upto 10HP

above 10HP upto 20HP

Dismantling, lifting, lowering, painting and re-installation of existing sewage submersible pumpset of following capacity including servicing, replacement of all pump spares (such as Impeller, Mechanical seal, Cutter, Set of ‘O’ rings, Oil seal, Oil for seal cooling etc.,) and Testing, Commissioning etc complete as required.

upto 1 HP

above 1HP upto 3HP

above 3HP upto 7.5HP

Dismantling, lifting, lowering, painting, rewinding and re-installation of existing sewage submersible pumpset motor of following capacity, including replacement of motor spares (if any required), rebate for wound out copper and Testing, Commissioning etc complete as required.

Upto 1 HP

above 1HP upto 3HP

above 3HP upto 7.5HP

Dismantling, lifting, lowering, painting, re-installation of sewage submersible pumpset from existing sewage well including rewinding , servicing, replacement of all spares (such as Impeller, Mechanical seal, Cutter, Set of ‘O’ rings, Oil seal, Oil for seal cooling, Set of bearings etc), rebate for wound out copper and testing, commissioning, Complete etc as required.

above 7.5 HP upto 12.5HP- At STP Collection Well and Grid 72

30 HP - At IAD Residential Colony

Lowering of Borewell Submersible pump sets for New borewell (upto 200 feet depth) including couplings, pipe fittings (nipple, elbow, flange valves, clamps etc) lowering and fixing of pipes, submersible cables, cable panel connections etc., complete as required. (Note: Borewell Pump, GI pipe and fittings shall be supplied by AAI)

Lifting and Lowering of Borewell submersible pumpset (upto 200 feet depth) from existing borewell of 2"/1.5" dia G.I pipe including cutting, re-threading of existing pipes, pipe fittings (nipple, elbow, flange valves, clamps etc) and installations of submersible pump set (Provided by AAI) along with submersible cables, cable and panel connections etc., complete as required.

Servicing of existing Borewell submersible pump of following capacity including replacement of all pump spares (such as Impeller, Diffusers, Pump Shaft, Set of shaft sleves, Retainer ring, Pump Coupling etc) and re-assembling the same etc complete as required.

Upto 3 HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Rewinding and servicing of Borewell Submersible Pump -motor, replacement of spares (if any), including rebate for wound out copper of following capacity etc complete as required.

Upto 3 HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Servicing of existing Borewell submersible pump-motor of following capacity including replacement of all motor spares (such as Thrustpad, Thrust bearing assembly, Diapharam, Set of keys, Oil Seal, Diapharam Plate etc.) and re-assembling the same etc complete as required.

Up to 3HP

above 3HP upto 5HP

above 5HP upto 7.5HP

Dismantling,lifting, lowering, painting and re-installation of openwell/ sump submersible pumpset including servicing, re-threading, replacement of pump spares (such as Impeller, Oil Seal, Thrustpad, Thrust bearing assembly, Diapharam, Gasket , Impeller locknet, Strainer, Diapharam Plate etc.,) and installation, testing, and commissioning of the same complete etc, as and when required.

Upto 3HP

above 3HP upto 7.5

above 7.5HP upto 10HP

above 10HP upto 15HP

Dismantling, lifting, lowering, painting, rewinding and re-installation of open well submersible pumpset motor of following capacity including pipes & plumping accessories, rebate for wound out copper, and Testing, Commissioning etc complete as required.

Upto 3HP

above 3HP to upto 7.5

above 7.5HP upto 10HP

above 10HP upto 15HP

Dismantling, Lifting, lowering, painting and re-installation of all types of De-watering submersible pump sets of following capacity including rewinding, servicing, replacement of spares (shaft seal, O ring, Bearings etc.) for pump & motor,rebate for wound out copper, testing and commissioning etc., complete as required.

Upto 3HP

Dismantling, overhauling and servicing of all type of HPS vertically mounted centrifugal pump sets/RO High pressure pumpset (Grundfos Make) including replacement of pump spares (such as impeller,shaft seal, 'O' ring, Head spring, bearings etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

RO High Pressure Pump-20HP

RO Backwash (Chemical wash) Pump-5.5HP

Domestic HPS Pump-25HP

RO HPS Pump-1.5HP

Dismantling the existing HPS vertically mounted centrifugal pump sets/RO High pressure pumpset(Groundfos Make) including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

RO High Pressure Pumpset Motor -20HP

RO Backwash (Chemical wash) Pumpset Motor -5.5HP

Domestic HPS Pumpset Motor -25HP

RO HPS Pumpset Motor -1.5HP

Dismantling the existing centrifugal pump sets (Groundfos Make) including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required.

PSF Feed Pump-15HP

PSF Back wash -15HP

Dismantling, overhauling and servicing of all type of de-watering pump sets (Grundfos make) including replacement of pump spares (Such as impeller, shaft seal, O ring, head spring, bearing etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

De-watering Pump -1.5HP

De-watering Pump -2.5HP

De-watering Pump -3HP

De-watering Pump -25HP

Dismantling, overhauling and servicing of all type of sewage pump sets (Grundfos make) including replacement of pump spares (Such as impeller, shaft seal, O ring, head spring, bearing etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required.

Sewage Pump -2.5HP

Sewage Pump -3HP

Providing man power to attend any urgent / emergency work with necesssary tools and plants on round the clock basis etc complete as required.

Highly skilled labour

Skilled labour

Semi skilled labour

Unskilled labour

Providing Excavater (JCB) including Operator for emergency / un anticipated break down / maintenance work, cable works etc., complete as required.

Providing Tractorwith Trolley including driver and loaders-3, loaders for shifting of debris / wastes from water supply system locations, pump houses etc. to waste dump yard or for emergency / un-anticipated break down / maintenance works etc as required.

Providing One Welder alongwith Electric welding machine and welding rods for carrrying out welding works during any urgent Preventive Maintenance/ Breakdown Maintenance /Emergency work as and when required.

SUB HEAD - III (Maintainance works)

Supply of Activated Sludge (MLSS) to Chennai Sewage Treatment Plant at Chennai Airport as and when required (Note: 1 Lot of MLSS = 9000 Litres)

Provision of fiberglas re-inforced (FRP) lining on existing MS/GI pipe line external surface complete with cleaning,wrapping, fixing with binding components, pigment compund layer as per technical specification complete etc as required.

Mechanized Cleaning of Clarifier tank including disposal of silt and rubbish etc complete as required as per the direction of Engineer-In-Charge. The cleaning shall consist of following operations: 1. De-watering of sump. 2. Entire surface area (walls, floor etc) of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with high pressure water jet. 3.Wall painting of entire clarifier surface inside and outside with approved paint to achieve even shade and color. 4.Painting of all metallic parts of the reactor clarifier-Detention Hood, Draft tube, Drive wheel (Iylam), clarifier scrapper arm, Bridge, Impeller, staircase etc after through scrapping, Sodium hypo treatment of submerged parts and replacing the rusted nut, bolt washer, scrapper blade etc., complete as per the site requirements.

Mechanised Cleaning & de-silting of sewage collection well using compressor and associated equipment including dosing of stabaliser chemical for dilution of sludge and disposal of left out sludges away from Airport premises etc., complete as required.

Grid-72 well- (8 X 9 X 6 depth Mtr)

Residential colony-sewage wells 1) 2.36 dia X 7 Mtr Depth - 2No 2) 3.56 dia X 7.9 Mtr Depth -1No 3) 5 dia X 8 Mtr Depth-1No Sl.No. 1 to 3 =1Job

Cleaning of sewage (sumps of depth 10 to 15 feet, size from 500 Cubic feet to 1000 cubic feet) in Domestic and International terminal basement with mechanised de-silting compressor, sump scrubbing, debris removal and disposal of left out sludges away from Airport premises including vehicle, as per direction of Engineer-In-Charge etc complete as required.

Sewage sump with depth 10 to 15 feet -all size (500 Cubic feet to 1000 cubic feet)

Supply and Installation of various Mild Steel structure fabricated using single section MS Channel/angle/flat/bar etc including cutting, welding, drilling, fixing in position using appropriate fasteners, grinding, painting with approved steel primer and two coats enamel paint etc. complete as required.

Brush/Spray Painting of various metal surfaces after cleaning/scrapping the surface with emery paper and applying 02 coat anti-corrosive metal red-oxide primer & 2 coats Enamel paint of approved brand and colour to give an even shade complete etc as required (Paint Colour to be decided by Engineer-In-Charge).

Repair of existing 275 m3/Hr Kay Make twin-lobe air blowers including dismantling, servicing, replacement of damaged spares (roller bearing, rings, O-ring, oil seal, gasket, shaft, bearing collar, suction air filter, pressure guage, pressure relief valve, NRV, belt pulley with machining, bolts, nuts, washer etc) re-alignment, installation, testing and commissioning at New Water Treatment Plant etc complete as required. (Note: Repair of 01 Blower is considered as 01 Job.) Air blowers for PSF backwash at New WTP

Supply and replacement of 100mm dia pressure guages, 0-200PSI, H.Guru make or as per the approved make, specification including welding of GI nipple and necessary connection as required & as per direction of Engineer-In-Charge.

Supply and fixing of non-corrosive Fiberglass Reinforced Plastic (FRP) molded grating (Load : atleast 500Kg/Sq.mtr) walkway of Mesh size 38mm X 38mm , Height: 38 mm, 3 mm thickness Chequered plate molded onto FRP Grating, With Rib thickness 5/7 mm on existing sump including fixing of newly fabricated bottom Frame using MS L-Channel 50mm X 50mm X 5mm, painting of metal surface with 01 coat anticorrosive metal primer and 02 coats enamel paint, providing of MS/GI hooks for lifting and civil modification works (CC chipping, filling, finishing) for proper insertion & seating etc. complete as required.

Supplying, fixing, testing and commissioning of Butterfly Valve (Manual) with CI body,SS disc,SS stem, nitrile/EPDM rubber seal,O - ring & PN 16 pressure rating alongwith bolt, nut ,washer as per following sizes etc including dismantling the existing valve complete as required.

Butterfly Valve-200 mm Dia

Butterfly Valve-150 mm Dia

Butterfly Valve- 125 mm Dia

Butterfly Valve- 100 mm Dia

Butterfly Valve- 80 mm Dia

Butterfly Valve- 65 mm Dia

Butterfly Valve- 50 mm Dia

Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/recess including cutting the wall and making good the same in case of recessed conduit as required.

Replacement of full pressure tank (Tank.Bladder,drain kit,flange etc) including dismantling the existing tank and installation of following capacity tank alongwith providing necessary pipeline connection for satisfactory working of Hydro Pneumatic Syatem (HPS) at various location of Chennai Airport etc complete as required.

Wellmate pressure tank WM9 or equivalent

Wellmate pressure tank WM35 or equivalent

Wellmate pressure tank WM80 or equivalent

Replacement of following Pressure Tank Bladder including removing of damaged bladder and providing New Bladder,filling air upto required pressure alongwith providing necessary pipeline connection for satisfactory working of Hydro Pneumatic Syatem (HPS) at various location of Chennai Airport etc complete as required.

Wellmate pressure tank WM9 or equivalent

Wellmate pressure tank WM35 or equivalent

Wellmate pressure tank WM80 or equivalent

Zilmat ultra pro 500LV pressure Tank or equivalent

Periodical health checkup of entire Hydro Pneumatic System on Quarterly basis by OEM M/s.Grundfos or OEM authorized agency and attending minor faults of Equipment’s, filling of air in Pressure tank using compressor upto required pressure, ensuring 100% Serviceability/ Satisfactory Working Condition of the system as per Standard Manufacturers' Practices, replacement of spares which will be supplied by AAI and submission of Service Reports etc as required and as per direction of Engineer-In-Charge. Note: Health check up of 01 HPS system will be treated as 01 Job

Maintenance of 62.5 KVA Cummins Make DG Set mounted on Grundfos make dewatering Trolley by OEM/OEM Authorised Service Dealer, carrying out Routine/Preventive Maintenance on Quarterly Visit Basis, attending All Breakdown Maintenance Calls, carrying out "B" Check of Engines and attending minor faults of Equipment’s, ensuring 100% Serviceability/ Satisfactory Working Condition of the Engine, as per Standard Manufacturers' Practices as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge.

Quarterly visit Charges/ DG coupled Pumpset

B Check Charge/ Engine

Maintenance of 156HP Kirloskar make dewatering Pumpset alongwith Diesel Engine by OEM/OEM Authorised Service Dealer, carrying out Routine/Preventive Maintenance on Quarterly Visit Basis, attending All Breakdown Maintenance Calls, carrying out "B" Check of Diesel Engines and attending minor faults of Equipment’s, ensuring 100% Serviceability/ Satisfactory Working Condition of the Engine, as per Standard Manufacturers' Practices as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge.

Quarterly visit Charges/Dewatering Pumpset

B Check Charge/ Engine

Maintenance & Servicing of following diesel engine operated dewatering pumpset and carrying out 'B' Check as per Special Terms and Conditions and submission of Service Reports etc as required and as per direction of Engineer-In-Charge

5 HP Kirloskar Diesel engine coupled dewatering pump

5 HP Grundfos Diesel engine coupled dewatering pump

Calibration of Digital Electro-Magnetic Flow meter available at various locations from the certified agency and submitting report to Engineer-In-Charge

Supplying and laying of following size DWC HDPE pipe ISI marked along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc. direct in ground (75 cm below ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc. , complete as required

40mm Dia DWC HDPE Pipe

50mm Dia DWC HDPE Pipe

Providing and Fixing of 'B' Clase GI pipe complete with GI fittings of following sizes including cutting, welding, threading and suitable size flanges etc. complete as required.

2 inch Dia 'B' Clause GI Pipe

3 inch Dia 'B' Clause GI Pipe

4 inch Dia 'B' Clause GI Pipe

5 inch Dia 'B' Clause GI Pipe

6 inch Dia 'B' Clause GI Pipe

8 inch Dia 'B' Clause GI Pipe

10 inch Dia 'B' Clause GI Pipe

12 inch Dia 'B' Clause GI Pipe

Sub Head-IV Supply of Spares

Supply of following Plumbing accessories/Submersible Pump accessories for various installations & locations etc as and when required.

50mm B-Class GI Pipe (10 feet) (Threaded both Ends)

2 inch coupling -100 mm long (Threaded Coupling)

50 mm X 12 mm C- clamp set with nut bolt.

GI elbow-2" (50 mm) Threaded

GI Flange-2" (50mm) Threaded

GI Pipe Nipple-2" X 12" long

Water Meter-2" (50 mm) Flanged End

GI flexible Conduit PVC coated-2"

Water Level Controller (Make: L&T Model:XM81053OOOO or equivelant)

Water Level Controller Probes (Make:L&T Model: XM81076OOOO or equivelant) (Set of 6Nos)

NRV wafer type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16

150 mm Dia

100 mm Dia

80 mm Dia

50 mm Dia

NRV Dual Plate type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16

150 mm Dia

100 mm Dia

80 mm Dia

NRV:MOC-Gun Metal of approved quality (screwed end) :

40 mm nominal bore (Horizontal)

50 mm nominal bore (Horizontal)

80 mm nominal bore (Horizontal)

Gate Valve:MOC-Gun Metal with C.I. wheel of approved quality (screwed end) :

80 mm nominal bore

50 mm nominal bore

40 mm nominal bore

25 mm nominal bore

Dummy Flange:MOC-Mild Steel with suitable Nuts & Bolts etc.

6" MS Dummy Flange-20mm Thick

4" MS Dummy Flange-20mm Thick

Supply of hand lever operated Cast Steel ball valve approved quality (screwed end) :

2" Ball Valve

1" Ball Valve

3/4" Ball Valve

Supply of float switch sensor for water level controller approved Quality

Float Switch

Supply of Flat Three Core PVC Insulated & PVC Sheathed Industrial Cable for Submersible Pump Motors 1100 Volts, conforming to IS: 694, suitable for installation with Deep Borewell pump of suitable length etc., as required.

2.5 Sqmm X 3 Core flat cable

4 Sqmm X 3 Core flat cable

6 Sqmm X 3 Core flat cable

Supply of following panel board starter suitable to operate with 415 V, 50 Hz, 3 phase AC power supply various installations & locations etc as and when required.

3HP/2.2 KW DOL Starter Panel

7.5HP/5.5KW Star-Delta Starter Panel

Supply of following panel board starter suitable to operate with 230 V, 50 Hz, 1 phase AC power supply various installations & locations etc as and when required.

1.5HP DOL Starter with Auto level controller

Supply of Borewell type Submersible Pumpset of Suitable rating, water filled cooling type, with SS strainer, SS Body,Noryl Impellers using anti-friction bearing, energy efficient type operated on 415V, 3 Phase,50Hz power for installation into 6'' dia borewell including loading, unloading at site complete etc as required. (Maximum borewell depth 250 feet)

5HP 3Phase - Borewell pump (Model No:KS4D 5025, Make: Kirloskar)

3HP 3Phase- Borewell Submersible pump (Model No:KS4D 3017, Make: Kirloskar)

Supply of Borewell type Submersible Pumpset of Suitable rating, water filled cooling type, with SS strainer, SS Body,Noryl Impellers using anti-friction bearing, energy efficient type operated on 415V, 3 Phase,50Hz power for installation into 6'' dia borewell including loading, unloading at site complete etc as required. (Maximum borewell depth 250 feet)

1.5HP 1Phase- Borewell Submersible pump (Model No:KU4-0318S, Make: Kirloskar)

Supply & fixing of following Hydro Pneumatic system spares for various location as and whwn required.

Drain Kit for WM9 Pressure Tank

Drain Kit for WM35 Pressure Tank

Flange for Zilmat ultra pro pressure Tank

Multi pump control CU352

IO351B Module digital/analog

R core transformer 100VA

R core transformer 150VA

Pressure Transmitter 0-16 Bar

Supply of following size of butterfly valve for Hydro Pneumatic System as and when required

200 mm Dia Butterfly valve

150 mm Dia Butterfly valve

100 mm Dia Butterfly valve

50 mm Dia Butterfly valve

40 mm Dia Butterfly valve

Supply of spares for 156HP Kirloskar make Diesel Generator Trolley Mounted De-watering Pumpset etc complete as an when required.

Impeller Nut

Shaft Sleeve

Set of Keys

Set of Fastener

Set of Bearing

Set of Gland Packing

Set of Gasket

Set of Oilseals

Set of Ring

Supply of pulse lite 12V, 65 AH, battery complete as required. Make: Cummins

Supply of 12V, model: XP1800 Exide battery complete as required.

Supply of spares for 5HP Grundfos make Diesel Generator Trolley Mounted De-watering Pumpset etc complete as an when required.

Maintenance Kit for Hartz Engine

Supply of following HDPE accessories etc complete as an when required.

Elbow -50 mm

Elbow -40 mm

MTA -50 mm

MTA -40 mm

FTA -50 mm

FTA -40 mm

Long bend -50 mm

Long bend -40 mm

Sub head - V Supply of Chemicals

Supply of following chemicals for water treatment plant and tertiary treatment plant to be supplied as and when required as per site requirement.

Per Year requirement

Solid Dosing chemical

Hydrant Lime 80% concentration

Dolomite 70% concentration

Soda Ash 98% concentration

Liquid Dosing Chemicals

Hydro Chloric Acid 35% concentration

Sodium Hypo Chlorite 6% concentration

Aluminium sulphate 24% concentrate (Alum)

Test Kit

Hardness Test kit-atleast 250 sample (Aquasol AE-211 or equivalent)

Chloride Test Kit-atleast 300 sample (Aquasol AE-203 or equivalent)

Testing Regants, consumables

Universal Indicator solution PH 4.0-11.0 (500ML)

PH Indicator Paper

Chemicals for RO Plant (14 Cum/Hr)

R.O. Antiscalant

Sodium Meta Bi Sulphate (SMBS)

Supply of Bioculture chemical for dilution of sludge in sewage collection open well etc complete as required.

Super24 Bioculture

Oxysuper

Supply of Nanozyme Wastewater Treatment Culture chemical for dilution of sludge in sewage collection open well etc complete as required.

Nanozyme-Bet-STP-9013

Nutrition-Bet-Nutri-9003

Supply of stabilizer chemical for dilution of sludge in sewage collection open well etc complete as required.

Sub head - VI Replacement of Filtration media

Replacement of outdated filter media in Activated Carbon filter and Multi Grade Filter at old water treatment plant including removal of old outdated media, rinse-cleaning,application of thinner,industrial marine grade epoxy painting, refilling of different gradient media (pebbles, sand, silex,Granular Activated Carbon) in layers as per standard design, technical specifications and disposal of unserviceable media away from chennai airport complete as per the direction of Engineer-in-Charge etc as required.

Activated Carbon filter (110 M3/Hr): 2600mm Dia X 2000mm HOS Top Distrubution Header: Inverted Bell Mouth Bottom Collecter : lateral system

Activated carbon filter (30 M3/Hr): 1600mm Dia X 2000mm HOS Top Distrubution Header: Inverted Bell Mouth Bottom Collecter: Lateral system

Muti-Grade filter (110 M3/Hr)-3000mm Dia X 1800mm HOS Top Distrubution Header: Inverted Bell Mouth Bottom Collecter: Lateral system

Muti-Grade filter (30 M3/Hr)-2000mm Dia X 1500mm HOS Top Distrubution Header: Inverted Bell Mouth Bottom Collecter: Lateral system

Sub head - VII Contingency

Supply of following accessories for contigency/Emergency situations etc complete as required.

PVC Flexible Green Hose-4"

PVC Green Hose-3"

PVC Green Hose-2"

Fire Hose-4"

Stainless Steel Hose Clamp-4"

Stainless Steel Hose Clamp-3"

CI Foot valve-3"

CI Hose collar-3"

Supply of 3HP dewatering submersible pump (Model - STPM 32-18. Make - Crompton Greaves Ltd) suitable to operate for 415 V, 3 Phase, 50 Hz, AC power supply and Vortex type impeller, motor housing SS304, double mechanical seal (SiC+Carbon-Ceramic) with discharge of 300 LPM @ 12 Meter Head, non-clog suitable for continuous/intermittent operation in submerged condition, particle handling size of minimum 35mm with starter panel and standard accessories i.e. discharge elbow including gaskets nut bolts, screws, washer including loading, unloading at site complete etc., as required.

CHENNAI ENGINEERING SERVICES (BID ID -820773)