REPAIR/MAINT OF VARIOUS DG SETS AND COMP MAINT OF CHLORONOME PLANT INCLUDING CONNECTED ACCESSORIES FOR WATER SUPPLY INSTALLATION AND REPAIR/MAINT TO PUMP SETS, LT PANEL BOARDS, STARTERS AND CONNECTED ITEMS AT DW-5, DW-6, DW-7 UNDER GE NW NAVY NAGAR

Comprehensive Maintenance of Diesel Generator Set of existing make Cummins / Kirloskar, 400 KVA capacity, installed at Central Pump House, comprising daily, monthly, half-yearly and yearly routine maintenance and checks as per OEM recommendations, including minor repairs and testing of DG set, complete all as specified and directed by the Engineer-in-Charge. The scope of work shall include the following: (a) Examination of suction and exhaust valves and cleaning, if necessary, for smooth operation. (b) Examination and cleaning of fuel injection system including injectors/nozzles. (c) Checking valve clearances of suction and exhaust valves and adjustment, if required. (d) Replacement of oil filters, fuel filters and screen filter assemblies, as and when required. (e) Cleaning of alternator windings in position by forced air, cleaning of internal surfaces, and lubrication of DE & NDE bearings, as required. (f) Testing of insulation resistance (IR) value of alternator windings and recording of readings. (g) Tightening of all nuts and bolts. (h) Greasing of components wherever required. (j) Checking for leakage in fuel and lubricating oil lines. (k) Cleaning of fuel tank, when due. (l) Checking and servicing of turbocharger, as and when required.

All as per item No. 01 above but 125 KVA capacity at Jyestha/Dhanista Pump House.

All as per item No. 01 above but 125 KVA capacity at Dhanush Pump House.

All as per item No. 01 above but 320 KVA capacity at Main Pump House.

All as per item No. 01 above but 400 KVA capacity at Acharya Niwas pump House.

Supply only in replacement against item No.1 to 5 here in before the following items:-

Fuel filter for DG Sets of Kirloskar for capacity 400 KVA

Fuel filter for DG Sets of Kirloskar for capacity 125 KVA

Fuel filter for DG Sets of Kirloskar for capacity 320 KVA

Fuel filter for DG Sets of Kirloskar for capacity 250 KVA

Fuel filter for DG Sets of Kirloskar for capacity 160 KVA

Fuel filter for DG Sets of Kirloskar for capacity 125 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 400 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 320 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 125 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 250 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 160 KVA

Air filter element inner and outer with 'O' ring for DG of Kirloskar for capacity 400 KVA

Air filter element inner and outer with 'O' ring for DG Set of Kirloskar for capacity 320 KVA

Air filter element inner and outer with 'O' ring for DG Set of Kirloskar for capacity 125 KVA

Air filter element inner and outer with 'O' ring for DG of Kirloskar for capacity 250 KVA

Air filter element inner and outer with 'O' ring for DG of Kirloskar for capacity 160 KVA

Lub oil SAE 15 W - 40 (Make : Castrol/Power Supreme) for Top up or filling up the oil.

Distilled water to be filled in batteries

Coolant

Fan Belt for DG Sets of Kirloskar for capacity 400-320 KVA

Fan Belt for DG Sets of Kirloskar for capacity 250-160 KVA

Fan Belt for DG Sets of Kirloskar for capacity 125 KVA

Voltmeter 0 to 500 Volts AC

Tachometer/Speedo Meter

Material and labour for descaling of radiator assembly and intercooler assembly of DG Set, including disconnecting and dismantling from the engine, chemical/acid cleaning, checking and rectification of leakages, replacement of gaskets, hoses and clips as required, reassembly and refixing to the engine, and refilling of coolant, complete all as specified and directed by the Engineer-in-Charge. Note :Applicable for Kirloskar DG Sets of capacity 75 to 160 kVA.

Supply and fixing in repairs of 12 V, 180 AH battery suitable for DG Set, including removal of unserviceable battery, terminal connections and testing, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for repairs to 12 V battery charging dynamo assembly, including removal and dismantling, replacement of unserviceable/burnt rotor and stator assembly, reassembly and refixing to the engine, and testing for satisfactory battery charging, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for repairs to 12 V self-starter assembly, including removal and dismantling, taking to authorised workshop, replacement of unserviceable armature including field coil tapping, reassembly and refixing to the engine, and testing for satisfactory operation, complete all as specified and directed by the Engineer-in-Charge.

Taking out old unserviceable AVR (Automatic Voltage Regulator) from DG Set and supply and fixing of new AVR suitable for existing Make of Kirloskar/Cummins DG Sets of capacity 125 to 400 kVA, having the following minimum specifications: (i) Input sensing: 2 phase + neutral (ii) Sensing voltage: 415 V (iii) Output voltage: 95 V DC (iv) Output current: 4 A DC (v) Voltage regulation: ± 1% (vI) Over-excitation current tripping (vii)Fuse protection: 4 A (viii)Fast acting (ix)Frequency: 50 Hz Complete all as specified and directed by the Engineer-in-Charge.

Material and labour for preparation of old painted exposed surfaces of DG Set, including removal of dirt, dust, grease, oil etc., and painting of exposed surfaces of DG Set including all accessories fixed to the DG Set, with two coats of synthetic enamel paint of approved colour, complete all as specified and directed by the Engineer-in-Charge. Note : Applicable for Kirloskar DG Sets of capacity 320 to 400 kVA.

All as per Item No. 12 above, but for Kirloskar DG Sets of capacity 160 to 250 kVA.

All as per Item No. 12 above, but for Kirloskar DG Sets of capacity 125 kVA.

Repair and maintenance of chlorine dosing system assembly, including chlorine injector and dosing pump, cleaning, servicing, carrying out minor repairs, and testing for satisfactory operation, complete all as specified and directed by the Engineer-in-Charge. Notes: (a) Rate includes consumables such as cotton waste, cleaning cloths, etc. (b) Parts and spares required for replacement shall be measured and paid for separately.

Supply only (no fixing) in replacement against Item No. 15 above of the following spare parts for chlorine dosing system / dosing pump, complete all as specified and directed by the Engineer-in-Charge:

Gear motor 230 volt 50 Hz suitable for decrin dosing pump Part No PM 682 CE

Rotor assembly with bearing brackets and tolerance rings. Part No PMBR PL2

Coil 250 volt, 50 Hz Part No. MP 6 J222

Single head feed rate control with shaft. Part No FC 5040D

Pump head (Ferrules 1/4" including duckbill Part No UCPH 7 FD

Roller assembly Part No. MC3ASYD

Pump tube. Part No MCCP 207

Injection check valve 3/8" Part No MCINJ 38

Weighted suction line strainer 3/8" Part No. ST 138

White suction/discharge tube Part No. MAL T002

Supply and fixing in repair of high-pressure, single-head, gear-motor-driven adjustable dosing pump, complete with accessories such as lead tubing, connecting nuts, injection check valve, clay weight, ferrules, etc., including installation, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair of dosing system consisting of 40 litre to 100 litre capacity PE/FRP tank with PE/FRP lid and level gauge, complete with agitator including shaft and blade, suitable for installation in plastic tank, including fixing, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and mixing of Calcium Hypochlorite (High Strength Bleaching Powder / Stable Bleaching Powder), dry, free-flowing and free from lumps, free from toxic and undesirable substances, and conforming to IS 1065 and IS 10500 : 2012 for use in treated and disinfected water, such that it does not induce any substance beyond permissible limits. Note: The material shall be supplied in airtight drums of 40–45 kg capacity, suitable for storage in areas of high ambient temperature to minimise fire and safety hazards, complete all as specified and directed by the Engineer-in-Charge.

The Calcium Hypochlorite shall conform to the following specifications: Characteristic Unit Requirement Available Chlorine % by mass Minimum 65 Stability (Loss of available chlorine on for 1/15 year) % Maximum 10 Particle size (passing through 1.70 mm IS sieve) % by mass Minimum 99.5 Water-insoluble matter % Maximum 6 Calcium Hydroxide % Maximum 4 Sodium Chloride % Maximum 15

Supply and mixing only of the following ISI-marked chemicals, conforming to relevant Indian Standards, complete all as specified and directed by the Engineer-in-Charge:

Potash Alum, ISI-marked, suitable for water treatment.

Soda Ash, ISI-marked, suitable for water treatment.

Copper Sulphate, ISI-marked, suitable for water treatment.

Bleaching Powder with ISI marked,suitable for water treatment. Note for item No 20: Quantity of calcium hypochloride and chemicals will be intimated by contractor/ Rep of contractor to the JE incharge of installation.

Providing and installing Chemical Earthing Set consisting of 2 Nos. copper bonded earthing rods of 17.2 mm diameter and 10 feet length, UL approved and CPRI tested for 25 kA current discharge, complete. The copper bonded rods shall be of low carbon high tensile steel core with minimum 99.9% copper coating on surface. UL approval certificate shall be submitted. The earthing pit shall be filled with highly conductive, eco-friendly ground enhancing compound conforming to IEC 62561-7, quantity not less than 30 kg per pit, including polymer pit cover, excavation, refilling, watering, testing and making earth resistance satisfactory, complete all as specified and directed by the Engineer-in-Charge.

Labour only for cleaning of entire floor and wall surface area of Command Swimming Pool using brush or suction sweeper to prevent development of algae, including scraping of foreign materials, removal of dirt from bottom and side walls, and anti-bacterial treatment using approved chemical disinfectant, complete all as specified and directed by the Engineer-in-Charge. Note: (a) This cleaning work is in addition to the daily cleaning of the swimming pool covered under Schedule Item above. (b) Cleaning shall be carried out once in a week with not less than two labourers, or as directed.

All as per Item No. 22.00 above, but for Tarang Swimming Pool.

Supply and fixing in replacement of butterfly valve, flanged ends, cast iron body, flanged and drilled, long body, Class PN 1.6, conforming to IS 14846, ISI marked, including rubber/fibre board gaskets, bolts, nuts, washers and all jointing materials, complete all as specified and directed by the Engineer-in-Charge. Suitable for 200 mm diameter pipe.

All as per Item No. 24.00 above, but suitable for 150 mm diameter pipe.

All as per Item No. 24.00 above, but suitable for 150 mm diameter pipe.

Supply and fixing in replacement of Non-Return Valve (NRV) ISI Marked, complete with by-pass arrangement, suitable for 150 mm diameter pipeline, including all fittings, jointing materials, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply, fixing, installation, testing and commissioning of trolley-mounted, self-priming, non-clog suction sweeper with pump, complete, consisting of the following: (i) Trolley-mounted suction pump, 2 HP, self-priming, complete with rope and starter. (ii) Semi-automatic pool cleaner with trolley, complete with 6 Nos. floats, PP rope, ABS vacuum points (10 Nos.), 50 mm ISI-marked piping, starter, cables and all accessories required for satisfactory operation.

Material and labour for construction of valve chamber in repair, complete, as per the following specifications and dimensions, all as specified and directed by the Engineer-in-Charge: (a) Foundation: Providing and laying PCC 1:4:8 (using 40 mm graded aggregate) for foundation, of size 1.80 m × 1.80 m × 0.15 m thick. (b) Brick Masonry: Brick masonry in 230 mm thick walls in cement mortar 1:6, with inside finished clear size 1.20 m × 1.20 m × 1.20 m height, complete. (c) Coping: Providing and laying PCC coping 100 mm thick in cement concrete 1:2:4 on top of brick masonry walls. (d) MS Angle Frame: Providing and fixing MS angle iron frame made out of 50 × 50 × 6 mm angle iron, complete with cutting, welding and fixing.

(e) MS Cover Plate: Providing and fixing 5 mm thick MS chequered/plain plate cover with swivel joint, fixed to MS angle frame, overall size 1.10 m × 1.30 m, including: MS round handle 10 mm dia, 200 mm long, Locking arrangement, One rectangular inspection opening 100 × 150 mm, duly hinged, welded and finished complete. (f) Plastering: Providing 10 mm thick cement plaster in cement mortar 1:4 on inside surfaces of chamber and on outside exposed surfaces above ground level, complete. (g) Painting: Painting MS frame and MS plate with one coat of red oxide primer followed by two coats of synthetic enamel paint (red colour), complete. Note: Rate shall be deemed to include excavation, earthwork, refilling, disposal of surplus earth, dewatering if required, and all incidental works as per site conditions.

Disconnecting power supply and removal of old unserviceable power contactor, including loosening and removal of nuts, bolts, washers, contactor link bars and cable lugs, and supply, installation and fixing of new power contactor, 4-pole, 600 Amp, complete with copper busbar links of size 30 mm × 12 mm (vertical mounting), tightening, alignment and testing, complete all as specified and directed by the Engineer-in-Charge.

Replacement of existing aluminium busbars with copper busbars of 800 Amp capacity, including modification if required, control wiring using copper conductors of size 1.5 sqmm to 2.5 sqmm, proper crimping, termination, insulation, and application of colour-coded heat-shrink sleeves on busbars, complete all as specified and directed by the Engineer-in-Charge.

M&L for Disconnecting motor power cables of various sizes from electrical motor of different capacities and decoupling from the pump sets,removing and taking down carefully and transporting to authorised workshop ,Dismantaling stator and rotor carefully and rewinding stator assembly with supper enamelled copper winding wire of suitable gauge matching to existing gauge and cleaning of slots ,core with carbon tetra chloride solution and apply two coats of insulation varnish and keep stator assembly in heating chamber to improve insulation strength ,reassemble motor completey and transporation to site ,coupling pump to motor and check for proper shaft alignments such that no vibratiobn produce during opertioncoupling to pump with exact allinment ,connect power cables to motor and testing of following capacity motor

Supply and laying in replacement of copper unarmoured power cable of size 25 sqmm from motor starter panel to motor, laid in HDPE pipe in ground, including excavation, sand cushioning, laying of HDPE pipe, cable pulling, termination with suitable lugs, testing and making good disturbed surfaces, complete all as specified and directed by the Engineer-in-Charge.

All as per Item No. 33.00 above, but for copper unarmoured power cable of size 35 sqmm.

All as per Item No. 33.00 above, but for copper unarmoured power cable of size 50 sqmm.

(a) Pump coupled with 15 HP motor, including replacement of bearings 6307 ZZ & 6309 ZZ.

(b) Pump coupled with 20 HP motor, including replacement of bearings 6309 ZZ & 6308 ZZ.

Supply & Fixing in repair and replacement of MCCB of specified capacity, including disconnecting cables, replacement of burnt-out lugs, provision of suitable spreaders, nuts and bolts, fixing in existing panel, and necessary modification/alteration to existing busbar and panel, including testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

(a) MCCB 250 A, 4-Pole, breaking capacity 36 kA, with adjustable thermal-magnetic protection, Ics = Icu = 100%.

(b) MCCB 200 A, 4-Pole, breaking capacity 36 kA, with adjustable thermal-magnetic protection, Ics = Icu = 100%.

(c ) MCCB of 125 A,Breaking capacity 16KA,3P fixed type

Supply and fixing in replacement of cast iron air valve with single air outlet, conforming to IS 14845, suitable for 50 mm diameter bore, including fixing in 50 mm dia cast iron water supply main, complete with jointing materials, bolts, nuts and washers, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of pressure gauge of 100 mm dial size, complete with ball valve, suitable for pressure up to 25 kg/sq cm, including all fittings, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of chlorine test kit complete with coloured ampoules, all testing accessories and OT solution, supplied in rexine-finished box, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of pH test kit complete with coloured ampoules, suitable for: (a) BTB indicator (range 6.0 to 7.0) or (b) Phenol Red indicator (range 6.8 to 8.4), including necessary fitments and 100 ml testing solution, supplied in rexine-finished box, complete all as specified and directed by the Engineer-in-Charge.

Supply ,install, test and commissioning in replacement of LT Panel board from CPRI approved panel manufacturer made out of of 2mm CRCA sheet cubical totally enclosed with frame made out of 50mm x 50mm x 6mm angle iron door front and back openable with locking arrangement indoor type vermin and weather proof floor mounting type, suitable for 3 phase 4 wire,50 HZ , 415 Volt AC supply with 800A capacity main copper bus bar (4 Nos) All MCCB shall be connected with suitable size of copper strip from main bus & with terminate point and complete wiring of panel board with suitable size PVC insulated multistranded copper conductor including lugs/thimbles etc suitable Cable alley with for provn of cable entries at bottom with cable glands with soft starter for 75 HP including the following :- (a) MCCB 4 pole, 415V,630Amps 50 KA - 02 Nos (incoming) thermo magnetic adjustable release type,ICS=ICU=100% (b) MCCB 4 pole, 415V,400Amps 36 KA - 03 Nos (Out going) thermo magnetic adjustable release type,ICS=ICU=100% (c) Soft starter minimum switch current 10 mA at 6 V DC for relay outputs, 1.8 A at 230 V AC inductive load, cos phi =0.5 20 ms relay output 1.8 A at 30 V DC inductive load, cos phi = 0.5, Staring current 0.4 1.3 IcI adjustable 3 Nos Analogue output type current output AO : 0-20 mA or 4-20 mA, impedance < 500 = 03 Nos (d) S&F multimeter with suitable CT and PT 0 to 300 Amp and 0 to 500 Volts -04 Nos (e) Phase indicating lamps(RYB)-04 set (f) Digital panel meter for Amp,Volt,KWH, power factor and other parameter flush mounting of size 96X96mm-01 set.

Supply & fixing 150mm dia ball type foot valve 10/15 Kg/Sqcm model (B-5) of including for flanged joint and taking up and down suction pipe, cutting pipe and welding flanges, alteration in sump opening and making good to the disturbed portion of UG sump/wall.

Completely Overhauling of Filteration plant having tank capacity 1280mm dia and media depth size 830 mm installed at Tarang swimming pool Opening top cover of filter media and remove all unserviceable material fine sand,filter nozzle,header pipe nozzle and aggegate supply and filled in sequeience layera sand includind painting inside and out side of filteration tank red oxide grey colour functioning of proper filtration plant as per existing compete all as specfied and directed.

Completely Overhauling of Filteration plant having tank capacity 2200mm dia and media depth size 915 mm installed at Command/ Tarang swimming pool Opening top cover of filter media and remove all unserviceable material fine sand,filter nozzle,header pipe nozzle and aggegate supply and filled in sequeience layera sand includind painting inside and out side of filteration tank red oxide grey colour functioning of proper filtration plant as per existing compete all as specfied and directed.

Supply, Installation, testing and commissioning Of type approved retrofit emission control device (RECD) suitable for existing DG set of capacity 320 KVA to reduce emission level as per latest CPCB-IV norms. 1.1) Emission limits as per CPCB-IV+ norms: Power Category: More than 19KW upto 56 KW:- Emission Limits: Particulate matter (PM 2.5) ≤ 0.03 g/kW-hr, Carbon Monoxide ≤ 3.5 g/kW-hr , NOx+HC ≤ 4.7 g/kW-hr, Smoke Limit (Light Absorption Coefficient, m^(-1)) ≤ 0.7 Power Category: More than 56KW upto 560 KW:- Emission Limits: Particulate matter (PM 2.5) ≤ 0.02 g/kW-hr, Carbon Monoxide ≤ 3.5 g/kW-hr , NOx ≤ 0.4 g/kW-hr, HC ≤ 0.19 g/kW-hr, Smoke Limit (Light Absorption Coefficient, m^(-1)) ≤ 0.7

1.2) RECD being installed on DG set must reduce the emission parameters through it within above specified limits of latest CPCB norms. RECD commissioning will be approved all as specified and as directed by Engr-in-Charge after production of test reports of the DG sets as per CPCB format by installation team OEM or by NABL approved Lab of emission of all parameters as specified above in CPCB norms of before installation and showing reduction in emission parameters after installation of RECD device as per latest CPCB emission limits. 2) Particulate Matter capturing efficiency: Minimum capturing efficiency of 70%, type approved by one of the five CPCB recognized labs. 3) RECD should be manufactured using various technologies such as Wet Scrubber, Electrostatic Percipitator (ESP) and Catalytic conversion. 4) Emission monitoring from stack shall be tested from any NABL approved Lab. 5) Insulation on emission device: Glass wool with aluminium cladding with 22G sheet. 6) RECD power requirement : Less than 1% of the capacity used for operation.

TEST REPORTS Certification :- Device should be ‘Type Approved’ as per the System and Procedure of Central Pollution Control Board for Emission Compliance Testing of Retro-fit Emission Control Devices (RECD) For Diesel Power Generating Set Engines. Test reports as per CPCB format has to be produced showing reduction in emission of above specified parameters along with noise reduction report. Adhering to this, RECD to be ‘Type Tested’ for an equivalent kVA family as per the System and Procedure from any one of the four Central Pollution Control Board, Govt, of India, recognized/approved test agencies/laboratories as given below: (a) Automotive Research Association of India (ARAI, Pune) (b) International Centre for Automotive Testing (ICAT, Manesar) (c) Indian Institute of Petroleum (IIP, Dehradun) (d) Vehicle Research Development Establishment (VRDE, Ahmednagar) (e) Indian Oil Corporation, Research and Development Centre (Faridabad, Haryana) Back Pressure due to the Emission Control retrofit device :- It shall have no effect on exhaust back pressure (as per the capacity of the DG set)

General Technical Requirements (GTR) / Commissioning :- a) Emission Control retrofit device shall be complete with safety precautions to ensure no damage should be done to the DG set operations under any circumstances. The Emission Control retrofit device should be closely coupled with the DG exhaust to ensure 100% of the exhaust passes through the Emission Control retrofit device. b) Anti-Vibration mountings shall be provided for complete Emission Control retrofit device in case of flexible coupling with the diesel generator exhaust. c )Emission Control retrofit device should have protection against under voltage, over voltage, under frequency, over frequency, low battery voltage, over current, earth-fault, short circuit, phase sequence change etc. d) The Emission Control retrofit device shall be with corrosion resistive and HR paint. e) The OEM shall provide the trial run (Testing) of Emission Control retrofit device. The OEM shall conduct trial run of the Emission Control retrofit device with the available electrical load at site. The trial run shall be for min TWO hours. The electrical loading shall not be more than the rated capacity of the DG set. Test report has also to be provided by OEM or any Testing Agency accredited through NABL Lab for DG Testing that shows a reduction in emission limits of the DG set after installation of RECD device within the limits as prescribed above. (Before and After test reports have to be submitted compulsorily after the installation of RECD device) f) Exhaust piping, extra civil work, distribution board shall be installed as per OEM company g) Educating customer on usage, operation and maintenance to be done on installation by OEM.

Scope of Installation :- a) Installation, testing and commissioning of Emission Control Retrofit Device is inclusive in the scope of supply and shall be done by the OEM along with electric control panel with necessary wiring and all its accessories for smooth operation of RECD with DG set. No by-pass arrangement in RECD allowed to let the pollutants in open environment. b) Construction of all suitable civil work, earthing station (if applicable) and necessary connections shall be done by contractor through OEM and no extra payment paid to contractor on this account. c)Warranty/Service ;- 2 years in all respect or as per specified by approved OEM post completion of work. d)Number of preventive maintenance visits offered in a year during warranty period :- 2 visits.

Supply and fixing in repairs of PVC water storage tank, round type, triple-layer, pure anti-microbial, complete with cover, including dismantling of existing tank and foundation, and construction of new PCC foundation, complete all as specified and directed by the Engineer-in-Charge. (a) The PCC foundation shall be of size not less than 100 mm larger than the diameter of the tank on all sides, and minimum 200 mm height, including all necessary earthwork, levelling and curing. (b) The item shall also include making all inlet, outlet and overflow connections, including replacement of GI fittings such as tank nipple, washers, float valve, and necessary connections to existing delivery lines, complete. Applicable for the following tank capacities as specified in the Schedule.

(a) 5000 Ltr capacity

(b) 3000 Ltr capacity

Supply and fixing in repair of flow meter, 150 mm nominal diameter, flanged end, Class ‘B’, including cutting of existing pipeline, welding, provision of DI fittings, nuts, bolts, gaskets and all jointing materials as required at site, including alignment, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair/replacement of galvanised steel water tubing, medium grade, with all fittings such as nipples, unions, sockets, elbows, bends, etc., fixed to wall in shafts / service ducts, including cutting and removal of existing corroded GI pipes, replacement in short lengths or full lengths, as required. Note : (a) The item shall include breaking of existing brick masonry or wall surfaces for removal and replacement of GI pipes laid in/on walls, and making good disturbed surfaces to match existing finishes, complete all as specified and directed by the Engineer-in-Charge. (b) The work shall be carried out in high-rise buildings up to 14th floor, including work in shafts, terraces, plain walls and inside flats, complete. (c) Work includes cutting of existing GI pipeline and replacement with new GI pipes in short pieces or full length, as required at site.

25 mm bore

50 mm bore

80 mm bore

M&L for Disconnecting motor power cables of various sizes from electrical motor of different capacities and decoupling from the pump sets, removing and taking down carefully and transporting to authorised workshop, Dismantaling stator and rotor carefully and rewinding stator assembly with supper enamelled copper winding wire of suitable gauge matching to existing gauge and cleaning of slots, core with carbon tetra chloride solution and apply two coats of insulation varnish and keep stator assembly in heating chamber to improve insulation strength, reassemble motor completey and transporation to site, coupling pump to motor and check for proper shaft alignments such that no vibratiobn produce during opertion coupling to pump with exact allinment, connect power cables to motor and testing of following capacity motor.

Supply and fixing in repairs of MS ERW pipes, heavy grade, ISI marked, suitable for pump suction and delivery lines, including all necessary fittings, flanges, gaskets, nuts and bolts, cutting, welding, jointing and testing, complete. (A)The work shall also include providing PCC supports wherever required, laying pipes in trenches or fixing on walls, and fabrication of pipe layout to required shape and alignment at site by cutting and welding in pieces, complete. (B) The exposed MS pipes shall be cleaned and painted with one coat of red oxide primer followed by two coats of synthetic enamel paint of approved colour, complete all as specified and directed by the Engineer-in-Charge. Applicable for the following pipe sizes as specified in the Schedule.

300 mm dia

200 mm dia

250 mm dia

150 mm dia

100 mm dia

80 mm dia

M& L for Disconnecting centrifugal pump from motor, suction and delivery pipe line of any Make, model and taking down packing for removing and insertion of new shaft sleeves or remove Bearings using bearing puller gear and fix new shaft sleeves including necessary greasing of all parts, coupling pump to motor and check for proper shaft alignments such that no vibratiobn produce during opertion of following capacity pumps complete all as specfied and directed by Engineer-in-charge.

Shaft sleeves coupled with 150 HP pump/motor

Shaft sleeves coupled with 75 HP pump/motor

Shaft sleeves coupled with 60 HP pump/motor

Shaft sleeves coupled with 40/45 HP pump/motor

Shaft sleeves coupled with 20 HP pump/motor

Shaft sleeves coupled with 15 HP pump/motor

Supply and fixing in repair XLPE insulated, armoured heavy duty electric cable 3.5 core with aluminium conductor, 1100 volts grade, cross-sectional area 400 Sqmm confirming to IS 7098(Part-1) :1988 fixing on wall with suitable saddles or under ground as required at site complete including lugs complete all as specified and directed.

Supply and fixing in repair HDPE Pipe of size 150 mm bore, PN 10 including jointing with collars/bends complete all as specified and directed.

Supply and fixing in repair HDPE Pipe of size 50 mm bore, PN 10 including jointing with collars/bends complete all as specified and directed.

M& L for Disconnecting pump from motor of any Make, model and remove Bearing using bearing puller gear and fix new all two bearings at DE/NDE mathcing with existing bearing model and number for pump including necessary greasing, check for proper shaft alignments such that no vibratiobn produce during opertion of following capacity Motors.

Bearings suitable for Pump coupled with 150 HP motor

Bearings suitable for Pump coupled with 120 HP motor

Bearings suitable for Pump coupled with 75 HP motor

Bearings suitable for Pump coupled with 60 HP motor

Bearings suitable for Pump coupled with 40/50 HP motor

Bearings suitable for Pump coupled with 20/25 HP motor

Bearings suitable for Pump coupled with 15 HP motor

Bearings suitable for Pump coupled with 10/7.5 HP motor

M& L for Disconnecting motor from pump of any Make, model and remove Bearing using bearing puller gear and fix new all two bearings at DE/NDE mathcing with existing bearing model and number for motor including necessary greasing, check for proper shaft alignments such that no vibratiobn produce during opertion of following capacity Motors.

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