Operation and Maintenance of Melur CWSS for the year 2026 to 2029

OPERATION AND MAINTENANCE OF COMBINED WATER SUPPLY SCHEME TO MELUR, AVANIYAPURAM AND THIRUMANGALAM MUNICIPALITIES, A.VELLALAPATTI, PARAVAI, VILANGUDI, THIRUNAGAR, ALANGANALLUR, PALAMEDU TOWN PANCHAYATS AND 1430 RURAL HABITATIONS IN KOTTAMPATTI, MELUR, MADURAI EAST, MADURAI WEST, ALANGANALLUR, VADIPATTI, THIRUMANGALAM, THIRUPPARANKUNDRAM UNIONS IN MADURAI DISTRICT AND SINGAMPUNARI TOWN PANCHAYAT IN SIVAGANGAI DISTRICT WITH RIVER CAUVERY AS SOURCE FOR THE YEARS 2026-27, 2027-28 & 2028-29 - 3 YEARS.

Supply earmarked quantity of water noted against Melur CWSS in Madurai District by carrying out all the necessary works such as pumping, attending to leak and burst, attending to electrical and mechanical repair works, providing disinfection, preventive maintenance of all installations, sump cleaning and deliverance of earmarked quantity of water to the beneficiaries as per schedule and standard operating procedures and as directed by the TWAD Board officers for the period from 01.04.2026 to 30.03.2029

Total Basic Value

Add GST @18% on Basic Value

Item Rate BoQ

BoQ_Ver4.0

Name of the Bidder/ Bidding Firm / Company :

PRICE SCHEDULE- A1 (This BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevent columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only)

NUMBER #

Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protector of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of 63.67 MLD earmarked quantity of water to the beneficiaries as per Annexure, carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity, etc., complete and as directed by TWAD Board officers

From 01.04.2026 to 31.07.2026 Totally 7767.74 ML (63.67 ML x 122 Days)

Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protector of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of 61.64 MLD earmarked quantity of water to the beneficiaries as per Annexure, carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity, etc., complete and as directed by TWAD Board officers

From 01.08.2026 to 31.03.2027 Totally 14978.52 ML (61.64 ML x 243 Days)

LEAKS

Attending Leaks in the pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.2.5 of General conditions of Contract - Part II. etc, complete and as directed by the TWAD Board officers.

Earth work excavation and depositing on bank in Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth SS 20 B, etc., for leak rectification works for the following sizes of PVC/DI/MS pipes with standard trench width and depth etc., complete and as directed by the TWAD Board officers.

Ist Depth of 2m

PVC/DI/MS Pipe of various sizes

IIst Depth of 1m

MS Pipe of various sizes

Dewatering using 5HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc for the following sizes of PVC/DI/MS pipes complete and as directed by TWAD Board officers

Supply and delivery of the following sizes of unplastisized PVC Rigid pipes and specials confirming to IS other specifications as amended from time to time with ISI marking as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges, etc., complete and as directed by TWAD Board officers.

63mm PVC 4KSC

75mm PVC 4KSC

90mm PVC 4 KSC

110mm PVC 4KSC

140mm PVC 4KSC

160mm PVC 4KSC

200mm PVC 4KSC

140mm PVC 6KSC

160mm PVC 6KSC

200mm PVC 6KSC

Supply and delivery of following sizes of PVC Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

PVC COUPLER FABRICATED

63 mm PVC Coupler Fabricated 4 KSC

75 mm PVC Coupler Fabricated 4 KSC

90 mm PVC Coupler Fabricated 4 KSC

110 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 4 KSC

160 mm PVC Coupler Fabricated 4 KSC

200 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 6 KSC

160 mm PVC Coupler Fabricated 6 KSC

200 mm PVC Coupler Fabricated 6 KSC

PVC Bends Fabricated

63 mm PVC Bends Fabricated 4 KSC

75 mm PVC Bends Fabricated 4 KSC

90 mm PVC Bends Fabricated 4 KSC

110 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 4 KSC

160 mm PVC Bends Fabricated 4 KSC

200 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 6 KSC

160 mm PVC Bends Fabricated 6 KSC

200 mm PVC Bends Fabricated 6 KSC

PVC Equal Tee Fabricated

63 mm PVC Equal Tee Fabricated 4 KSC

75 mm PVC Equal Tee Fabricated 4 KSC

90 mm PVC Equal Tee Fabricated 4 KSC

110 mm PVC Equal Tee Fabricated 4 KSC

140 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 4 KSC

200 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 6 KSC

200 mm PVC Equal Tee Fabricated 6 KSC

PVC Elbow Fabricated

63 mm PVC Elbow Mould

75 mm PVC Elbow Mould

90 mm PVC Elbow Mould

110 mm PVC Elbow Mould

140 mm PVC Elbow Mould

160 mm PVC Elbow Mould

200 mm PVC Elbow Mould

PVC MTA

63 mm PVC MTA

75 mm PVC MTA

90 mm PVC MTA

110 mm PVC MTA

140 mm PVC MTA

160 mm PVC MTA

200 mm PVC MTA

Flanged Tail Piece

63 mm Flanged Tail Piece

75 mm Flanged Tail Piece

90 mm Flanged Tail Piece

110 mm Flanged Tail Piece

140 mm Flanged Tail Piece

160 mm Flanged Tail Piece

200 mm Flanged Tail Piece

PVC REDUCER COUPLER

63 mm x 50 mm

75 mm x 63 mm

90 mm x 63 mm

90 mm x 75 mm

110 mm x 63 mm

110 mm x 75 mm

110 mm x 90 mm

140 mm x 63 mm

140 mm x 90 mm

140 mm x 110 mm

160 mm x 110 mm

160 mm x 140 mm

Supply and delivery of the following sizes of Rigid GI Pipes and specials confirming to IS other specifications as amended from time to time with ISI marking and solvent cement as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges etc. complete and as directed by TWAD Board officers.

50 mm GI Pipe Medium Class

65 mm GI Pipe Medium Class

80 mm GI Pipe Medium Class

100 mm GI Pipe Medium Class

125 mm GI Pipe Medium Class

150 mm GI Pipe Medium Class

Supply and delivery of following sizes of GI Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

50 mm G.I. Equal Elbow plain

50 mm G.I. Equal Tee plain

50 mm G.I. Coupling

50 mm G.I. Flange set

50 mm G.I. Hex Nipple

50 mm G.I.Bend

50 mm G.I.Union

50 mm Rubber sheet for Flange set

50 mm G.M. Non Return valves

65 mm G.I. Equal Elbow plain

65 mm G.I. Equal Tee plain

65 mm G.I. Coupling

65 mm G.I. Flange set

65 mm G.I. Hex Nipple

65 mm G.I.Bend

65 mm G.I.Union

65 mm Rubber sheet for Flange set

65 mm G.M. Non Return valves

80 mm G.I. Equal Elbow plain

80 mm G.I. Equal Tee plain

80 mm G.I. Coupling

80 mm G.I. Flange set

80 mm G.I. Hex Nipple

80 mm G.I.Bend

80 mm G.I.Union

80 mm Rubber sheet for Flange set

80 mm G.M. Non Return valves

100 mm G.I. Equal Elbow plain

100 mm G.I. Equal Tee plain

100 mm G.I. Coupling

100 mm G.I. Flange set

100 mm G.I. Hex Nipple

100 mm G.I.Bend

100 mm G.I.Union

100 mm Rubber sheet for Flange set

125 mm G.I. Equal Elbow plain

125 mm G.I. Equal Tee plain

125 mm G.I. Coupling

125 mm G.I. Flange set

125 mm G.I. Hex Nipple

125 mm G.I.Bend

125 mm G.I.Union

125 mm Rubber sheet for Flange set

150 mm G.I. Equal Elbow plain

150 mm G.I. Equal Tee plain

150 mm G.I. Coupling

150 mm G.I. Flange set

150 mm G.I. Hex Nipple

150 mm G.I.Bend

150 mm G.I.Union

150 mm Rubber sheet for Flange set

Jointing the C.I/ D.I-S/S pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing. (including cost of jointing materials) etc. complete and as directed by TWAD Board officers.

100 mm DI K7

125 mm DI K7

150 mm DI K7

200 mm DI K7

250 mm DI K7

300 mm DI K7

350 mm DI K7

400 mm DI K7

450 mm DI K7

500 mm DI K7

Supply and delivery of following sizes of M.S. PIPES- SPIRAL/LONGITUDIDNAL WELDING AS PER IS 3589/2001 WITH INTERNAL LINING AND EXTERNAL COATING MADE WITH FE410 including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

273X6.3 mm Thickness MS pipe

355.6X8 mm Thickness MS pipe

610X6.3 mm Thickness MS pipe

711X7.1 mm Thickness MS pipe

1118X8.8 mm Thickness MS pipe

Supply and delivery of Hardcrete oil as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for various sizes of DI Pipes.

Supply and delivery of Lead wool as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for the various sizes of DI Pipes.

Hire Charges for 40KVA Genset The hire charges includes depreciation, maintenance & repair charges, interest, Fuel charges include, cost of diesel, oil & lubricants. Crew charges include wages of operator & helper, on shift basis. for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Genset 40 KVA

Hire Charges for 3 phase welding machine, Grinding machine and Gas cutting set for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

III phase welding machine

Grinding machine

Gas cutting

Labour charges for welding, Grinding, Gas Welding of various sizes of MS/DI pipes damaged portions with required runs of welding, including cost of labour for attending welding/ grinding/ cutting and allied works on war footing basis complete as directed by the TWAD Board Officers.

Welder Gr 1 (Per day - 8 Hrs for DI & MS Pipes)

Gas cutter (MS Pipes)

Supply of Oxygen gas with all accessories safety equipements for cutting and fabrication works for attending leaks/burst in the Pumping/Gravity main of MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Oxygen gas

Supply, delivery and fixing of MS Plate for attending leak in DI Pipes

8 mm Thickness MS Plate for DI Line for All Class (0.15mx0.15x0.008mx7850kg/m3)

Supply and Delivery of MS specials without inside lining and outside coating but with anti rust painting as per IS 14589-1999 for MS Pipes burst inclusive of transportation charges anywhere in Tamilnadu etc. complete and as directed by TWAD Board officers.

1100mm x 8.8 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.8mm x 7850 Kg/m3)

900mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

800mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

700mm x 7.10 mm Thickness MS pipe cut piece (1.5m x 0.5m x 7.10mm x 7850 Kg/m3)

600mm x 6.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 6.0mm x 7850 Kg/m3)

Refilling with excavated soil (other than sand)complying with standard specification in layers of 15cm watered well rammed and consolidated after the pipes and specials are laid,jointed and tested etc. and removing and depositing the surplus earth at the places shown by the TWAD Board Officers.

For PVC/DI/MS Pipes of various sizes

REPAIR AND RENEWAL OF PUMPSETS

Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers

Rewinding of motor and reconditioning of pump and repair works to various capacity open well submersible pumpsets including cost of all materials, conveyance, labour charges for removing and re-erection of submersible pumpset etc, complete and as directed by the TWAD Board officers.

Open well Submersible Pumpset

1 HP Open well submersible Pumpset

2 HP Open well submersible Pumpset

3 HP Open well submersible Pumpset

5 HP Open well submersible Pumpset

7.5 HP Open well submersible Pumpset

10 HP Open well submersible Pumpset

12.5 HP Open well submersible Pumpset

15 HP Open well submersible Pumpset

20 HP Open well submersible Pumpset

25 HP Open well submersible Pumpset

30 HP Open well submersible Pumpset

40 HP Open well submersible Pumpset

60 HP Open well submersible Pumpset

75 HP Open well submersible Pumpset

Horizontal Split Casing centrifugal Pumpset

Rewinding of Motor and repair works to various capacity Centrifugal HSC Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Centrifugal HSC Motors etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpset

40 HP centrifugal HSC Pumpset

120 HP centrifugal HSC Pumpset

Repair and reconditoning works in various capacity Centrifugal HSC Pumpsets including cost of all materials (excluding bronze impeller), conveyance, labour charges for removing and re-erection of Centrifugal HSC Pumpsets etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpsets

40 HP centrifugal HSC Pumpsets

120 HP centrifugal HSC Pumpsets

Vertical Turbine Pumpset

Rewinding of Motor and repair works to various capacity Vertical Turbine Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Vertical Turbine Motors etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditoning works in various capacity Vertical Turbine Pumpsets including cost of all materials (excluding bronze impeller, SS Shaft, MS column pipe), conveyance, labour charges for removing and re-erection of Vertical Turbine Pumpsets etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditioning of starter Contactors etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Electro magnetic Contactors Suitable for Starter in AC Three Phase 440V rating Conforming to IS/IEC 60947-4-1 etc., complete as directed by TWAD Board officers.

Repair and replacement of Over Load relay (OLR) etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Directly operated Bimetallic Thermal overload relaywhich operates in case of overload and also in case of under voltage with manual and auto reset mode etc., complete as directed by the TWAD Board officers.

upto 5A

Supply and Delivery of Digital Three Phase Ammeter Class 1-5A (96 mm X 96 mm ) etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Digital Voltmeter- Three Phase Class 1-AC etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Copper Flat (50 x 6 mm) as per IS Specifications etc., complete and as directed by the TWAD Board officers.

Repair and reconditioning of Phase failure priventer etc, complete and as directed by the TWAD Board officers.

Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply etc, complete as directed by the TWAD Board officers.

Repair and reconditioning of Miniature circuit Breaker (MCB) 4 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of MINIATURE CIRCUIT BREAKERS 240 V/415 V 50HZ AC SUPPLY SUITABLE FOR BOTH LIGHTING AND MOTOR CIRCUITS.

Four pole 6A to 32A, 10 KA (Higher End)

Four pole 63A,10 KA (Higher End)

Repair and reconditioning of Molded Case circuit Breaker (MCCB) 3 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of following Range AMPS 3/4 Pole MCCB Switch (Moulted case circuit breakers) to control EB supply from E.B Pole to Main Panel Board

32 -100 Amps 3 Pole MCCB Switch

125 Amps 3 Pole MCCB Switch

160 Amps 3 Pole MCCB Switch

200 Amps 3 Pole MCCB Switch

250 Amps 3 Pole MCCB Switch

320 Amps 3 Pole MCCB Switch

400 Amps 4 Pole MCCB Switch

800 Amps 4 Pole MCCB Switch

Repair and reconditioning of Power Capacitor for Power factor improvement etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Power capacitor for power factor improvement with oil filled with discharge resistance 3 phase 415/440V 50 HZ conforming to ISS with ISI marking etc, complete and as directed by the TWAD Board officers.

Power Capacitor

Repair and reconditioning of Supply of Cable and Laying etc, complete and as directed by the TWAD Board officers.

Supply, delivery of LT cables 1.1 KV Grade 3 , 3.5 and 4 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables Conforming to IS 7098 (Part I)/1988 and as amended thereafter with ISI marking for the following sizes as directed by the TWAD Board Officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Laying of LT cables 1.1 KV Grade 3 and 3.5 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables as per IE rules for the following sizes as directed by the TWAD Board Officers.

For laying in trenches inside the pump room

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Jointing of L.T. cables- 3 and 3.5 core 1.1 KV grade Armoured Aluminium conductor cable conforming to IS 1554 part I and as amended thereafter with ISI marking including joints, jointing materials and labour etc complete as directed by the TWAD Board officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Supply and Delivery of Cable gland suitable for following sizes

3 Core 95 sq.mm UG cable

3 Core 185 sq.mm UG cable

3 Core 240 sq.mm UG cable

3 Core 300 sq.mm UG cable

3 Core 400 sq.mm UG cable

Supply and Delivery of Aluminium CRIMPING LUGS SUITABLE FOR THE FOLLOWING SIZES as per IS Specifications etc complete as directed by the TWAD Board officers.

Attending repair, rectification and reconditioning of CI Sluice valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Sluice valve etc complete as directed by the TWAD Board officers.

50 mm CI Sluice valve

65 mm CI Sluice valve

80 mm CI Sluice valve

100 mm CI Sluice valve

125 mm CI Sluice valve

150 mm CI Sluice valve

200 mm CI Sluice valve

250 mm CI Sluice valve

300 mm CI Sluice valve

350 mm CI Sluice valve

400 mm CI Sluice valve

450 mm CI Sluice valve

500 mm CI Sluice valve

150 mm DI Sluice Valve

250 mm DI Sluice Valve

350 mm DI Sluice Valve

400 mm DI Sluice Valve

450 mm DI Sluice Valve

500 mm DI Sluice Valve

600 mm DI Sluice Valve

700 mm DI Sluice Valve

800 mm DI Sluice Valve

900 mm DI Sluice Valve

1100 mm DI Sluice Valve

40 mm Double Air Valve

50 mm Double Air Valve

80 mm Double Air Valve

50 mm DUOJET Air Valve

80 mm DUOJET Air Valve

100 mm DUOJET Air Valve

150 mm DUOJET Air Valve

200 mm DUOJET Air Valve

100 mm DI Non - Return Valve

125 mm DI Non - Return Valve

150 mm DI Non - Return Valve

200 mm DI Non - Return Valve

250 mm DI Non - Return Valve

300 mm CI Non - Return Valve

350 mm CI Non - Return Valve

400 mm CI Non - Return Valve

600 mm CI Non - Return Valve

700 mm CI Non - Return Valve

50 mm G.M. Gate valves

65 mm G.M. Gate valves

80 mm G.M. Gate valves

100 mm G.M. Gate valves

125 mm G.M. Gate valves

CLEANING OF SUMPS

Removal of sediments and deposition of sludge, silt,Particles inside the sump at various capacities by engaging required labours and diesel pumpsets and cleaning the side wall using wire brushes, brooms, collecting , lifting of the deposited slit particles on above the sump and washing side wall and the slab using bleaching powder including lighting arrangements and safety arrangements inside the sump, hire charges for the buckets, rope, etc and supply of bleaching powder for cleaning purposes etc complete and as directed by TWAD Board officers

FOR 0.05 LL - 0.10 LL Capacity Sump ( 2 x 97 Nos )

FOR 0.15 LL - 0.30 LL Capacity Sump ( 2 x 94 Nos )

FOR 0.35 LL- 0.50 LL Capacity Sump ( 2 x 27 Nos )

FOR 0.55 LL- 1.00 LL Capacity Sump ( 2 x 37 Nos )

FOR 1.05 LL - 1.50 LL Capacity Sump ( 2 x 11 Nos )

FOR 1.55 LL - 2.00 LL Capacity Sump ( 2 x 10 Nos )

FOR 2.05 LL - 2.50 LL Capacity Sump ( 2 x 2 Nos )

FOR 2.55 LL - 3.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 3.05 LL - 4.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 4.05 LL - 5.00 LL Capacity Sump ( 2 x 2 Nos )

FOR 5.05 LL - 7.50 LL Capacity Sump

FOR 7.55 LL - 10.00 LL Capacity Sump

FOR 10.05 LL - 12.50 LL Capacity Sump

FOR 12.55 LL - 15.00 LL Capacity Sump

FOR 20.05 LL - 25.00 LL Capacity Sump

FOR 25.05 LL - 30.00 LL Capacity Sump

FOR 35.05 LL - 40.00 LL Capacity Sump

FOR 40.05 LL - 45.00 LL Capacity Sump

Desilting of light or sandy soil or silt from infiltration wells below water level including the charges for special tools and plants and air compressor etc complete as directed by the TWAD Board officers.

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Removing of sand and silt filled in the radial arms of the collector well inside and cleaning of radial arms by using a wire brushes with special tools and plants and developing the radial for increasing the yield in the well using UPVC pipes for water pressure with special tools and plants including cost of labour for working inside of collector well and fixing of special valves and equipments for cleaning of arms and assured required yield for pumping quantity for the pump set erected in the collector well etc. complete( At the time of work done, flow is required in the river) as directed by TWAD Board Officials

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Chlorine plant operation and maintenance

supply , Delivery & Fixing of spares in Chlorination system etc, complete and as directed by the TWAD Board officers.

Pressure reducing valve including IS: 2062 steel Body, High tensile body bolt, Brass loading screw, PTFE Diaphragm, seat spring steel cadmium plated, Top spring Has alloy “c” silver plated, Bottom spring, Glass filled PTFE Spindle etc

Flexible copper connector tube 9.5mm O.D x 2.0M x 16swg, I.S – 191, including adapter IS – 319 both sides, Brass Bush and Nut etc, 2 meters length

Supply & delivery of chlorine key

Chlorine gas flow Rota meter including glass tube with float, Stopper Spindle, Top nut, Bottom luck nut, with Rubber gasket, With fittings -

Gas filter including ASTM A 106 Gr.B Seamless CS 80 Sch body, ASTM A 105 SORF Flange carbon steel holdup rod IS 2062 bottom Flange, Antimony lead gasket, Glass wool filter media, silversides wire

Supply and delivery of Manifold frame including Support frame IS A size channel 75mm x 40mm x 6mm length 1500mm x width 1000mm x height 1000mm and bottom Support plate 240mm x 220mm x 20mm thickness and necessary foundation bolt with civil work

Vacuum gauge with adapter MS body including bottom size ½” BSP Thread, Top side ½” BSP thread and pressure gauge range 0-760 mmhg Including S.S Casing 100/150mm dia S.S 316 with silicon oil sensing Element, aluminium die cast case, stainless steel SS 304 Movement, Isolation valve IS -3224 connector IS 2062 filling sealed diaphragm etc

Continous Monitering Single channel chlorine gas leak detection System with digital readout & alarms (CL 9206) Model 9206 Display unit + WP98 FLT CL2 Sensor transmitter + Hooter Sensor Transmitter – Model WP 98FLT Sensor: Electrochemical / 2 wire board Measuring range: 0-100 PPM with lock Min Detectable range: 0.10PPM Display unit (control module) – Model 9206 scanner Mounting: wall mount type for mounting in local/central control rooms Display: Independent digital display of reading, calibration functions, alarm Setting Etc.,

Polypropylene True union ball valve size ¾” fe male threaded for injector

Automatic vacuum regulator to control the required flow of chlorine gas

Frame mounted FRP cabinet for rota meter support

Chlorine Tonner valve to chlorine system copper tube connecting ATC clamp set

Polypropylene Check valve, emergency drain valve, Vacuum gauge isolation valve

Pressure gauge (0–10kg/cm²) including S.S casing 100/150mm Dia, S.S 316 with silicon oil sensing Element, Aluminum Die cast case, Stainless steel (S.S 304) movement isolation valve IS: 3224 connector IS: 2062 filling sealed Diaphragm etc

Chlorine gas face mask with self-contained Breathing apparatus with Medical Oxygen cylinder DLX – 200 bar, use to continuous Operate Duration 45 minutes to fight with gas chlorine cylinder

Pump delivery UPVC pipe line connection, injector crude chlorine solution dozing to GLR necessary fitting, valve, union, complete material

Flow control valve including PVC bottom housing, housing ring gasket and Top housing, spindle, Gland hand wheel, Viton rubber gasket, O ring and brass chromium plated screw etc

Supply and erection of chlorine auxiliary container valve including Monel 400 spindle, brass IS 319 gland and nut PTFE gland packing, Forged AL.SI Bronze valve body and packing collar etc

Charges for rewinding of Reacter unit, including supply of copper flat coil with Class F insulation, fibre class tap roll and charges for dismantling & insulation removing the defective wornout coil, cleaning the core set, servicing of core plates, re-assembling the core, rewinding the reacter with new coil, varnishing, including conveyance charges and re-erection, terminal connecting and testing of FCMA starter etc., complete after deduction of old scraps and as directed by TWAD Board officers.

330 HP FCMA Soft Starter

270HP FCMA Soft Starter

135HP FCMA Soft Starter

125HP FCMA Soft Starter

Charges for filtration of Transformer oil including rent for stream line filtration machine, labour charges for operation, conveyance and other incidental charges, including collection of sample and conducting of Acidity and Break Down Voltage tests, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 2000KVA & 1600 KVA Transformers

Charges for Servicing of 11KV Indoor Vacuum Circuit Breaker including checking all electrical and mechanical links, Visual inspection of breaker, Thorough cleaning of the breaker, Lubrication of all moving parts of mechanism, Oiling of closing & tripping coil, Checking of gear box operation, Checking of test/service aux.switch operation, Checking of tripping mechanism operation, checking of spring coil mechanism, testing of all tripping circuits, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 11kv Indoor VCB at Common Sump and Booster Pumping Stations

Charges for servicing of Air Circuit Breaker including Visual inspection for any broken parts and replace as needed, Cleaning and lubricating all mechanical linkages, Inspecting all breakers, inspect for damage, wear and deterioration, cleaning and lubricating as required, Checking, cleaning and dressing (if required) the main contacts, clean all covers and arc shields, Carrying out insulation test, phase to phase and phase to earth, Prove mechanical and electrical operation of the breaker by racking breaker to test position and production of Test certificate etc., complete as directed by TWAD Board officers.

For ACB at Common Sump and Booster Pumping Stations

Charges for servicing of Electronic flow meter including testing the flow with portable ultrasonic flow meter and calibration of transmitter etc., complete as directed by the TWAD Board officers.

For Collector wells, Common Sump and Booster Pumping Stations

Charges for refilling the extinguishing agent (Dry Chemical Powder - 4 Kg) in the existing fire extinguisher, refilling the extinguishing agent by appropriate weight for size of the unit, re-pressurizing the unit to the required pressure, completing a leak test, installing a new tamper seal on the safety pin and attaching a new recharge tag etc., complete as directed by the TWAD Board officers.

Supply,delivery of lubricating oil viscocity grade 68 for Vertical Turbine Motors as per IS specifications etc., complete as directed by TWAD Board officials.

Supply and delivery of Gland Packing Rope - 10mm thickness, Graphite impegrated Rope for VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of Gland Packing Rope - 12mm thickness, Graphite impegrated Rope VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of copper fuse wire, Tinned copper wire SWG-12 as per IS specifications etc, complete.

Supply and Delivery of Grease, Lithium base multipurpose to 'Grade 3' of IS:7623, Operating temperature for Grease -20oC to +120oC, etc., complete.

Supply and delivery of Lightening Arrester (Metal Oxide) for 11KV supply - rating: 9KV, 5KA as per IS specifications etc., complete.

Supply and Delivery of 500 Amps porcelain fuse carrier unit as per IS specifications, etc complete.

Supply and Delivery of SMPS power supply unit, 24V DC output, 230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of On Delay Timer unit, 0-30s range, 24DC/230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of 8 pin relay unit, 5 Amp 2 pole 240V AC input supply as per IS specifications, etc complete.

Supply and Delivery of Battery pack 12 V DC, 7 Ah as per IS specifications, etc complete.

Supply and Delivery of Over Voltage Cutoff Device single phase 240V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of LED panel Indicator light, set of Red, Green, Blue, Yellow, 230V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of Cotton waste for cleaning purpose

supply , Delivery & Fixing of electrically operated Actuator Spare Parts item etc, complete and as directed by the TWAD Board officers.

Supply and Delivery of linear controlled electrically operated Actuator Spare Part with position feedback sensor suitable for fixing on the 350mm CI sluice valves with required mechanical adaptor arrangements and mounting accessories etc., complete as directed by TWAD board officials.

HOUSING

SWITCH COMPARTMENT COVER

DECLUTCH LEVER

CLUTCH ROTARK ASSEMBLY

DECLUTCH LATCH

DECLUTCH TRIPPING ARM

WORM SHAFT ASSEMELY

BEARING FLANGE

COMPRESSION SPRING

CLUTCH RING

HEAD WHEEL SET

HEAD WHEEL RETAINER

PINION GEAR & COMPRESSION SPRING

HOLLOW DRIVE SHAFT ASSEMBLY

OIL SEL&"O"RING KIT

CIRCLIP SET

MOTOR PINION

MOTOR MOUNTING FLANGE

SPUR GRAR

WORM GEAR

LIMIT SWITCH COMPLETE ASSEMBLY

TORQUE SWITCH

LIMIT SWITCH DRIVE ASSEMBLE

2 TRAING X 480 TURNS LIMIT SWTICH COUNTER GEAR

TORQUE SWITCH DRIVE ASSEMBLE

KC2 MOTOR (A171) 415 V, 2800 RPM,50 HZ S2-15

MAIN POWER CONTROL BOARD

POWER MODULE

CONTACTOR ASSEMBLY

COMPLEATE LOOM ASSEMBLY

YOKE ASSEMBLY

CENTRE COLUMN

THRUST BEARING WITH WASHER (2 Bearings with 4 washers)

LOCAL/REMOTE KNOB ASSEMBLY OPEN/CLOSE/STOP KNOB

POTENTIAL TRANSMITTER

Attending Major repair works to transformer 2000KVA/11KV/433V under Melur CWSS

Labour Charges for dismantling of 2000 KVA Transformer at Melur CWSS Head works with all accessories by using crane etc. Complete as directed by TWAD Board officers

Supply and delivery of HV 11KV copper Dual Con. Super enameled Winding Coils for 3 phase to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of HV 433KV Copper Winding for 3 phase insulation to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 3 phase insulation material to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of new transformer oil to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 11KV HV bushing with Metal parts to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 433V LV bushing copper rod to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of silica gel breather to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of capillary type thermometer including accessories to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of gasket & oil seals to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of paint to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for hot air chamber treatment for IR value improvement Work 900C for 2 days to 2000 KVA Transformer etc., complete as directed by TWAD board officers.

Charges for Transformer tank cleaning and painting work to 2000 KVA Transformer as per IS Specification as directed by TWAD Board officers.

Labour charges for new windings rewinding with new insulation off load taps switch connection both with delta star connection by copper bracing work two coatings varnish apply work to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for attending Core winding job to tank accessories fixing as per IS specification including testing work with loading to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for Re-erection of 2000 KVA Transformer and all accessories at Melur CWSS Head works by using crane and fixing etc complete as directed by TWAD Board officers.

Conveyance charges for transformers unit from Melur CWSS Head works to work shop site and work shop site to Melur CWSS Head works completion of rectification works etc complete as directed by TWAD Board officers

Painting of Sump, Pumproom, Comound wall, Grill gate and TWAD emblem Etc.,

White washing two coats using fine screened shell lime including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Inside and Ceiling) (Pump Room & Compound wall)

Applying two coats of Cement Paint of approved colour and quality over cement plastered wall surfaces and new surfaces including cleaning, preparing the surface area and including cost of all materials, labour charges, curing etc., complete and as directed by TWAD Board Officers. (Pump Room , Compound wall & Sump)

Applying of Painting with ready mixed paint two coat of approved colour and quality over Iron works including cleaning, preparing the surface area and including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Grill Gate)

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board, ncluding cost of all consumables, one coat of base paint, scaffolding charges including painting NRDWP Logo. (Pump Room & Sump)

Plastering for CM 1:3 20mm Thickness of decayed surfaces existing MS transmission main, Pump rooms, Sumps. including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers.

COST OF CHEMICALS

Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (such as bleaching powder, chlorine cylinder, silver ionization rods as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc complete as directed by the TWAD Board officers.

Supply, delivery of stable Bleaching Powder anywhere in the schemes maintained by TWAD Board as per IS 1065:1989 (Grade I) and amended from time to time including freight, loading, unloading, transporation, transit insurance, all other incidental charges at site of work etc., complete and as directed by TWAD Board officers. ( 01.04.2026 to 31.07.2026 )

Supply and delivery of Liquid Chlorine cylinder as per IS specification (with chlorine 99.80% moisture, Na203 Hydrogen and carbon dioxide are to be Nil) including loading, freight, unloading, stacking transit insurance and all other incidental charges and as directed by TWAD Board officers. ( 01.04.2026 to 31.07.2026 )

Supply, delivery of stable Bleaching Powder anywhere in the schemes maintained by TWAD Board as per IS 1065:1989 (Grade I) and amended from time to time including freight, loading, unloading, transporation, transit insurance, all other incidental charges at site of work etc., complete and as directed by TWAD Board officers.( 01.08.2026 to 31.03.2027 )

Supply and delivery of Liquid Chlorine cylinder as per IS specification (with chlorine 99.80% moisture, Na203 Hydrogen and carbon dioxide are to be Nil) including loading, freight, unloading, stacking transit insurance and all other incidental charges and as directed by TWAD Board officers.( 01.08.2026 to 31.03.2027 )

For the year 2027-28 (From 01.04.2027 to 31.03.2028)

Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protector of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of 62.22 MLD earmarked quantity of water to the beneficiaries as per Annexure, carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity, etc., complete and as directed by TWAD Board officers

From 01.04.2027 to 31.03.2028 Totally 22772.52 ML (62.22 ML x 366 Days)

LEAKS

Attending Leaks in the pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.2.5 of General conditions of Contract - Part II. etc, complete and as directed by the TWAD Board officers.

Earth work excavation and depositing on bank in Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth SS 20 B, etc., for leak rectification works for the following sizes of PVC/DI/MS pipes with standard trench width and depth etc., complete and as directed by the TWAD Board officers.

Ist Depth of 2m

PVC/DI/MS Pipe of various sizes

IIst Depth of 1m

MS Pipe of various sizes

Dewatering using 5HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc for the following sizes of PVC/DI/MS pipes complete and as directed by TWAD Board officers

Supply and delivery of the following sizes of unplastisized PVC Rigid pipes and specials confirming to IS other specifications as amended from time to time with ISI marking as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges, etc., complete and as directed by TWAD Board officers.

63mm PVC 4KSC

75mm PVC 4KSC

90mm PVC 4 KSC

110mm PVC 4KSC

140mm PVC 4KSC

160mm PVC 4KSC

200mm PVC 4KSC

140mm PVC 6KSC

160mm PVC 6KSC

200mm PVC 6KSC

Supply and delivery of following sizes of PVC Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

PVC COUPLER FABRICATED

63 mm PVC Coupler Fabricated 4 KSC

75 mm PVC Coupler Fabricated 4 KSC

90 mm PVC Coupler Fabricated 4 KSC

110 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 4 KSC

160 mm PVC Coupler Fabricated 4 KSC

200 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 6 KSC

160 mm PVC Coupler Fabricated 6 KSC

200 mm PVC Coupler Fabricated 6 KSC

PVC Bends Fabricated

63 mm PVC Bends Fabricated 4 KSC

75 mm PVC Bends Fabricated 4 KSC

90 mm PVC Bends Fabricated 4 KSC

110 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 4 KSC

160 mm PVC Bends Fabricated 4 KSC

200 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 6 KSC

160 mm PVC Bends Fabricated 6 KSC

200 mm PVC Bends Fabricated 6 KSC

PVC Equal Tee Fabricated

63 mm PVC Equal Tee Fabricated 4 KSC

75 mm PVC Equal Tee Fabricated 4 KSC

90 mm PVC Equal Tee Fabricated 4 KSC

110 mm PVC Equal Tee Fabricated 4 KSC

140 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 4 KSC

200 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 6 KSC

200 mm PVC Equal Tee Fabricated 6 KSC

PVC Elbow Fabricated

63 mm PVC Elbow Mould

75 mm PVC Elbow Mould

90 mm PVC Elbow Mould

110 mm PVC Elbow Mould

140 mm PVC Elbow Mould

160 mm PVC Elbow Mould

200 mm PVC Elbow Mould

PVC MTA

63 mm PVC MTA

75 mm PVC MTA

90 mm PVC MTA

110 mm PVC MTA

140 mm PVC MTA

160 mm PVC MTA

200 mm PVC MTA

Flanged Tail Piece

63 mm Flanged Tail Piece

75 mm Flanged Tail Piece

90 mm Flanged Tail Piece

110 mm Flanged Tail Piece

140 mm Flanged Tail Piece

160 mm Flanged Tail Piece

200 mm Flanged Tail Piece

PVC REDUCER COUPLER

63 mm x 50 mm

75 mm x 63 mm

90 mm x 63 mm

90 mm x 75 mm

110 mm x 63 mm

110 mm x 75 mm

110 mm x 90 mm

140 mm x 63 mm

140 mm x 90 mm

140 mm x 110 mm

160 mm x 110 mm

160 mm x 140 mm

Supply and delivery of the following sizes of Rigid GI Pipes and specials confirming to IS other specifications as amended from time to time with ISI marking and solvent cement as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges etc. complete and as directed by TWAD Board officers.

50 mm GI Pipe Medium Class

65 mm GI Pipe Medium Class

80 mm GI Pipe Medium Class

100 mm GI Pipe Medium Class

125 mm GI Pipe Medium Class

150 mm GI Pipe Medium Class

Supply and delivery of following sizes of GI Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

50 mm G.I. Equal Elbow plain

50 mm G.I. Equal Tee plain

50 mm G.I. Coupling

50 mm G.I. Flange set

50 mm G.I. Hex Nipple

50 mm G.I.Bend

50 mm G.I.Union

50 mm Rubber sheet for Flange set

50 mm G.M. Non Return valves

65 mm G.I. Equal Elbow plain

65 mm G.I. Equal Tee plain

65 mm G.I. Coupling

65 mm G.I. Flange set

65 mm G.I. Hex Nipple

65 mm G.I.Bend

65 mm G.I.Union

65 mm Rubber sheet for Flange set

65 mm G.M. Non Return valves

80 mm G.I. Equal Elbow plain

80 mm G.I. Equal Tee plain

80 mm G.I. Coupling

80 mm G.I. Flange set

80 mm G.I. Hex Nipple

80 mm G.I.Bend

80 mm G.I.Union

80 mm Rubber sheet for Flange set

80 mm G.M. Non Return valves

100 mm G.I. Equal Elbow plain

100 mm G.I. Equal Tee plain

100 mm G.I. Coupling

100 mm G.I. Flange set

100 mm G.I. Hex Nipple

100 mm G.I.Bend

100 mm G.I.Union

100 mm Rubber sheet for Flange set

125 mm G.I. Equal Elbow plain

125 mm G.I. Equal Tee plain

125 mm G.I. Coupling

125 mm G.I. Flange set

125 mm G.I. Hex Nipple

125 mm G.I.Bend

125 mm G.I.Union

125 mm Rubber sheet for Flange set

150 mm G.I. Equal Elbow plain

150 mm G.I. Equal Tee plain

150 mm G.I. Coupling

150 mm G.I. Flange set

150 mm G.I. Hex Nipple

150 mm G.I.Bend

150 mm G.I.Union

150 mm Rubber sheet for Flange set

Jointing the C.I/ D.I-S/S pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing. (including cost of jointing materials) etc. complete and as directed by TWAD Board officers.

100 mm DI K7

125 mm DI K7

150 mm DI K7

200 mm DI K7

250 mm DI K7

300 mm DI K7

350 mm DI K7

400 mm DI K7

450 mm DI K7

500 mm DI K7

Supply and delivery of following sizes of M.S. PIPES- SPIRAL/LONGITUDIDNAL WELDING AS PER IS 3589/2001 WITH INTERNAL LINING AND EXTERNAL COATING MADE WITH FE410 including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

273X6.3 mm Thickness MS pipe

355.6X8 mm Thickness MS pipe

610X6.3 mm Thickness MS pipe

711X7.1 mm Thickness MS pipe

1118X8.8 mm Thickness MS pipe

Supply and delivery of Hardcrete oil as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for various sizes of DI Pipes.

Supply and delivery of Lead wool as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for the various sizes of DI Pipes.

Hire Charges for 40KVA Genset The hire charges includes depreciation, maintenance & repair charges, interest, Fuel charges include, cost of diesel, oil & lubricants. Crew charges include wages of operator & helper, on shift basis. for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Genset 40 KVA

Hire Charges for 3 phase welding machine, Grinding machine and Gas cutting set for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

III phase welding machine

Grinding machine

Gas cutting

Labour charges for welding, Grinding, Gas Welding of various sizes of MS/DI pipes damaged portions with required runs of welding, including cost of labour for attending welding/ grinding/ cutting and allied works on war footing basis complete as directed by the TWAD Board Officers.

Welder Gr 1 (Per day - 8 Hrs for DI & MS Pipes)

Gas cutter (MS Pipes)

Supply of Oxygen gas with all accessories safety equipements for cutting and fabrication works for attending leaks/burst in the Pumping/Gravity main of MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Oxygen gas

Supply, delivery and fixing of MS Plate for attending leak in DI Pipes

8 mm Thickness MS Plate for DI Line for All Class (0.15mx0.15x0.008mx7850kg/m3)

Supply and Delivery of MS specials without inside lining and outside coating but with anti rust painting as per IS 14589-1999 for MS Pipes burst inclusive of transportation charges anywhere in Tamilnadu etc. complete and as directed by TWAD Board officers.

1100mm x 8.8 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.8mm x 7850 Kg/m3)

900mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

800mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

700mm x 7.10 mm Thickness MS pipe cut piece (1.5m x 0.5m x 7.10mm x 7850 Kg/m3)

600mm x 6.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 6.0mm x 7850 Kg/m3)

Refilling with excavated soil (other than sand)complying with standard specification in layers of 15cm watered well rammed and consolidated after the pipes and specials are laid,jointed and tested etc. and removing and depositing the surplus earth at the places shown by the TWAD Board Officers.

For PVC/DI/MS Pipes of various sizes

REPAIR AND RENEWAL OF PUMPSETS

Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers

Rewinding of motor and reconditioning of pump and repair works to various capacity open well submersible pumpsets including cost of all materials, conveyance, labour charges for removing and re-erection of submersible pumpset etc, complete and as directed by the TWAD Board officers.

Open well Submersible Pumpset

1 HP Open well submersible Pumpset

2 HP Open well submersible Pumpset

3 HP Open well submersible Pumpset

5 HP Open well submersible Pumpset

7.5 HP Open well submersible Pumpset

10 HP Open well submersible Pumpset

12.5 HP Open well submersible Pumpset

15 HP Open well submersible Pumpset

20 HP Open well submersible Pumpset

25 HP Open well submersible Pumpset

30 HP Open well submersible Pumpset

40 HP Open well submersible Pumpset

60 HP Open well submersible Pumpset

75 HP Open well submersible Pumpset

Horizontal Split Casing centrifugal Pumpset

Rewinding of Motor and repair works to various capacity Centrifugal HSC Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Centrifugal HSC Motors etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpset

40 HP centrifugal HSC Pumpset

120 HP centrifugal HSC Pumpset

Repair and reconditoning works in various capacity Centrifugal HSC Pumpsets including cost of all materials (excluding bronze impeller), conveyance, labour charges for removing and re-erection of Centrifugal HSC Pumpsets etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpsets

40 HP centrifugal HSC Pumpsets

120 HP centrifugal HSC Pumpsets

Vertical Turbine Pumpset

Rewinding of Motor and repair works to various capacity Vertical Turbine Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Vertical Turbine Motors etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditoning works in various capacity Vertical Turbine Pumpsets including cost of all materials (excluding bronze impeller, SS Shaft, MS column pipe), conveyance, labour charges for removing and re-erection of Vertical Turbine Pumpsets etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditioning of starter Contactors etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Electro magnetic Contactors Suitable for Starter in AC Three Phase 440V rating Conforming to IS/IEC 60947-4-1 etc., complete as directed by TWAD Board officers.

Repair and replacement of Over Load relay (OLR) etc, complete and as directed by the TWAD Board officers.

upto 5A

Supply and Delivery of Digital Three Phase Ammeter Class 1-5A (96 mm X 96 mm ) etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Digital Voltmeter- Three Phase Class 1-AC etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Copper Flat (50 x 6 mm) as per IS Specifications etc., complete and as directed by the TWAD Board officers.

Repair and reconditioning of Phase failure priventer etc, complete and as directed by the TWAD Board officers.

Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply etc, complete as directed by the TWAD Board officers.

Repair and reconditioning of Miniature circuit Breaker (MCB) 4 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of MINIATURE CIRCUIT BREAKERS 240 V/415 V 50HZ AC SUPPLY SUITABLE FOR BOTH LIGHTING AND MOTOR CIRCUITS.

Four pole 6A to 32A, 10 KA (Higher End)

Four pole 63A,10 KA (Higher End)

Repair and reconditioning of Molded Case circuit Breaker (MCCB) 3 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of following Range AMPS 3/4 Pole MCCB Switch (Moulted case circuit breakers) to control EB supply from E.B Pole to Main Panel Board

32 -100 Amps 3 Pole MCCB Switch

125 Amps 3 Pole MCCB Switch

160 Amps 3 Pole MCCB Switch

200 Amps 3 Pole MCCB Switch

250 Amps 3 Pole MCCB Switch

320 Amps 3 Pole MCCB Switch

400 Amps 4 Pole MCCB Switch

800 Amps 4 Pole MCCB Switch

Repair and reconditioning of Power Capacitor for Power factor improvement etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Power capacitor for power factor improvement with oil filled with discharge resistance 3 phase 415/440V 50 HZ conforming to ISS with ISI marking etc, complete and as directed by the TWAD Board officers.

Power Capacitor

Repair and reconditioning of Supply of Cable and Laying etc, complete and as directed by the TWAD Board officers.

Supply, delivery of LT cables 1.1 KV Grade 3 , 3.5 and 4 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables Conforming to IS 7098 (Part I)/1988 and as amended thereafter with ISI marking for the following sizes as directed by the TWAD Board Officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Laying of LT cables 1.1 KV Grade 3 and 3.5 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables as per IE rules for the following sizes as directed by the TWAD Board Officers.

For laying in trenches inside the pump room

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Jointing of L.T. cables- 3 and 3.5 core 1.1 KV grade Armoured Aluminium conductor cable conforming to IS 1554 part I and as amended thereafter with ISI marking including joints, jointing materials and labour etc complete as directed by the TWAD Board officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Supply and Delivery of Cable gland suitable for following sizes

3 Core 95 sq.mm UG cable

3 Core 185 sq.mm UG cable

3 Core 240 sq.mm UG cable

3 Core 300 sq.mm UG cable

3 Core 400 sq.mm UG cable

Supply and Delivery of Aluminium CRIMPING LUGS SUITABLE FOR THE FOLLOWING SIZES as per IS Specifications etc complete as directed by the TWAD Board officers.

Attending repair, rectification and reconditioning of CI Sluice valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Sluice valve etc complete as directed by the TWAD Board officers.

50 mm CI Sluice valve

65 mm CI Sluice valve

80 mm CI Sluice valve

100 mm CI Sluice valve

125 mm CI Sluice valve

150 mm CI Sluice valve

200 mm CI Sluice valve

250 mm CI Sluice valve

300 mm CI Sluice valve

350 mm CI Sluice valve

400 mm CI Sluice valve

450 mm CI Sluice valve

500 mm CI Sluice valve

Attending repair, rectification and reconditioning of DI D/F Gate Sluice valves(soft seated) including cost of all material, conveyance, labour charges for removing and re-erection of DI D/F Gate Sluice valve etc complete as directed by the TWAD Board officers.

150 mm DI Sluice Valve

250 mm DI Sluice Valve

350 mm DI Sluice Valve

400 mm DI Sluice Valve

450 mm DI Sluice Valve

500 mm DI Sluice Valve

600 mm DI Sluice Valve

700 mm DI Sluice Valve

800 mm DI Sluice Valve

900 mm DI Sluice Valve

1100 mm DI Sluice Valve

Attending repair, rectification and reconditioning of CI Double Air valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Double Air valve etc complete as directed by the TWAD Board officers.

40 mm Double Air Valve

50 mm Double Air Valve

80 mm Double Air Valve

Attending repair, rectification and reconditioning of DI Single chamber Air release valve including cost of all material, conveyance, labour charges for removing and re-erection of DI Single chamber Air release valve etc complete as directed by the TWAD Board officers.

50 mm DUOJET Air Valve

80 mm DUOJET Air Valve

100 mm DUOJET Air Valve

150 mm DUOJET Air Valve

200 mm DUOJET Air Valve

Attending repair, rectification and reconditioning of DI Non Return Valve including cost of all material, conveyance, labour charges for removing and re-erection of DI Non return valve etc complete as directed by the TWAD Board officers.

100 mm DI Non - Return Valve

125 mm DI Non - Return Valve

150 mm DI Non - Return Valve

200 mm DI Non - Return Valve

250 mm DI Non - Return Valve

Attending repair, rectification and reconditioning of CI Non Return Valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Non return valve etc complete as directed by the TWAD Board officers.

300 mm CI Non - Return Valve

350 mm CI Non - Return Valve

400 mm CI Non - Return Valve

600 mm CI Non - Return Valve

700 mm CI Non - Return Valve

Supply and Delivery of G.M GATE VALVES AS PER IS BS 5154 and related IS Specifications inclusive of transportation charges any where in Tamilnadu etc complete as directed by the TWAD Board officers.

50 mm G.M. Gate valves

65 mm G.M. Gate valves

80 mm G.M. Gate valves

100 mm G.M. Gate valves

125 mm G.M. Gate valves

CLEANING OF SUMPS

Removal of sediments and deposition of sludge, silt,Particles inside the sump at various capacities by engaging required labours and diesel pumpsets and cleaning the side wall using wire brushes, brooms, collecting , lifting of the deposited slit particles on above the sump and washing side wall and the slab using bleaching powder including lighting arrangements and safety arrangements inside the sump, hire charges for the buckets, rope, etc and supply of bleaching powder for cleaning purposes etc complete and as directed by TWAD Board officers

FOR 0.05 LL - 0.10 LL Capacity Sump ( 2 x 97 Nos )

FOR 0.15 LL - 0.30 LL Capacity Sump ( 2 x 94 Nos )

FOR 0.35 LL- 0.50 LL Capacity Sump ( 2 x 27 Nos )

FOR 0.55 LL- 1.00 LL Capacity Sump ( 2 x 37 Nos )

FOR 1.05 LL - 1.50 LL Capacity Sump ( 2 x 11 Nos )

FOR 1.55 LL - 2.00 LL Capacity Sump ( 2 x 10 Nos )

FOR 2.05 LL - 2.50 LL Capacity Sump ( 2 x 2 Nos )

FOR 2.55 LL - 3.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 3.05 LL - 4.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 4.05 LL - 5.00 LL Capacity Sump ( 2 x 2 Nos )

FOR 5.05 LL - 7.50 LL Capacity Sump

FOR 7.55 LL - 10.00 LL Capacity Sump

FOR 10.05 LL - 12.50 LL Capacity Sump

FOR 12.55 LL - 15.00 LL Capacity Sump

FOR 20.05 LL - 25.00 LL Capacity Sump

FOR 25.05 LL - 30.00 LL Capacity Sump

FOR 35.05 LL - 40.00 LL Capacity Sump

FOR 40.05 LL - 45.00 LL Capacity Sump

Desilting of light or sandy soil or silt from infiltration wells below water level including the charges for special tools and plants and air compressor etc complete as directed by the TWAD Board officers.

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Removing of sand and silt filled in the radial arms of the collector well inside and cleaning of radial arms by using a wire brushes with special tools and plants and developing the radial for increasing the yield in the well using UPVC pipes for water pressure with special tools and plants including cost of labour for working inside of collector well and fixing of special valves and equipments for cleaning of arms and assured required yield for pumping quantity for the pump set erected in the collector well etc. complete( At the time of work done, flow is required in the river) as directed by TWAD Board Officials

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Chlorine plant operation and maintenance

supply , Delivery & Fixing of spares in Chlorination system etc, complete and as directed by the TWAD Board officers.

Pressure reducing valve including IS: 2062 steel Body, High tensile body bolt, Brass loading screw, PTFE Diaphragm, seat spring steel cadmium plated, Top spring Has alloy “c” silver plated, Bottom spring, Glass filled PTFE Spindle etc

Flexible copper connector tube 9.5mm O.D x 2.0M x 16swg, I.S – 191, including adapter IS – 319 both sides, Brass Bush and Nut etc, 2 meters length

Supply & delivery of chlorine key

Chlorine gas flow Rota meter including glass tube with float, Stopper Spindle, Top nut, Bottom luck nut, with Rubber gasket, With fittings -

Gas filter including ASTM A 106 Gr.B Seamless CS 80 Sch body, ASTM A 105 SORF Flange carbon steel holdup rod IS 2062 bottom Flange, Antimony lead gasket, Glass wool filter media, silversides wire

Supply and delivery of Manifold frame including Support frame IS A size channel 75mm x 40mm x 6mm length 1500mm x width 1000mm x height 1000mm and bottom Support plate 240mm x 220mm x 20mm thickness and necessary foundation bolt with civil work

Vacuum gauge with adapter MS body including bottom size ½” BSP Thread, Top side ½” BSP thread and pressure gauge range 0-760 mmhg Including S.S Casing 100/150mm dia S.S 316 with silicon oil sensing Element, aluminium die cast case, stainless steel SS 304 Movement, Isolation valve IS -3224 connector IS 2062 filling sealed diaphragm etc

Continous Monitering Single channel chlorine gas leak detection System with digital readout & alarms (CL 9206) Model 9206 Display unit + WP98 FLT CL2 Sensor transmitter + Hooter Sensor Transmitter – Model WP 98FLT Sensor: Electrochemical / 2 wire board Measuring range: 0-100 PPM with lock Min Detectable range: 0.10PPM Display unit (control module) – Model 9206 scanner Mounting: wall mount type for mounting in local/central control rooms Display: Independent digital display of reading, calibration functions, alarm Setting Etc.,

Polypropylene True union ball valve size ¾” fe male threaded for injector

Automatic vacuum regulator to control the required flow of chlorine gas

Frame mounted FRP cabinet for rota meter support

Chlorine Tonner valve to chlorine system copper tube connecting ATC clamp set

Polypropylene Check valve, emergency drain valve, Vacuum gauge isolation valve

Pressure gauge (0–10kg/cm²) including S.S casing 100/150mm Dia, S.S 316 with silicon oil sensing Element, Aluminum Die cast case, Stainless steel (S.S 304) movement isolation valve IS: 3224 connector IS: 2062 filling sealed Diaphragm etc

Chlorine gas face mask with self-contained Breathing apparatus with Medical Oxygen cylinder DLX – 200 bar, use to continuous Operate Duration 45 minutes to fight with gas chlorine cylinder

Pump delivery UPVC pipe line connection, injector crude chlorine solution dozing to GLR necessary fitting, valve, union, complete material

Flow control valve including PVC bottom housing, housing ring gasket and Top housing, spindle, Gland hand wheel, Viton rubber gasket, O ring and brass chromium plated screw etc

Supply and erection of chlorine auxiliary container valve including Monel 400 spindle, brass IS 319 gland and nut PTFE gland packing, Forged AL.SI Bronze valve body and packing collar etc

Charges for rewinding of Reacter unit, including supply of copper flat coil with Class F insulation, fibre class tap roll and charges for dismantling & insulation removing the defective wornout coil, cleaning the core set, servicing of core plates, re-assembling the core, rewinding the reacter with new coil, varnishing, including conveyance charges and re-erection, terminal connecting and testing of FCMA starter etc., complete after deduction of old scraps and as directed by TWAD Board officers.

330 HP FCMA Soft Starter

270HP FCMA Soft Starter

135HP FCMA Soft Starter

125HP FCMA Soft Starter

Charges for filtration of Transformer oil including rent for stream line filtration machine, labour charges for operation, conveyance and other incidental charges, including collection of sample and conducting of Acidity and Break Down Voltage tests, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 2000KVA & 1600 KVA Transformers

Charges for Servicing of 11KV Indoor Vacuum Circuit Breaker including checking all electrical and mechanical links, Visual inspection of breaker, Thorough cleaning of the breaker, Lubrication of all moving parts of mechanism, Oiling of closing & tripping coil, Checking of gear box operation, Checking of test/service aux.switch operation, Checking of tripping mechanism operation, checking of spring coil mechanism, testing of all tripping circuits, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 11kv Indoor VCB at Common Sump and Booster Pumping Stations

Charges for servicing of Air Circuit Breaker including Visual inspection for any broken parts and replace as needed, Cleaning and lubricating all mechanical linkages, Inspecting all breakers, inspect for damage, wear and deterioration, cleaning and lubricating as required, Checking, cleaning and dressing (if required) the main contacts, clean all covers and arc shields, Carrying out insulation test, phase to phase and phase to earth, Prove mechanical and electrical operation of the breaker by racking breaker to test position and production of Test certificate etc., complete as directed by TWAD Board officers.

For ACB at Common Sump and Booster Pumping Stations

Charges for servicing of Electronic flow meter including testing the flow with portable ultrasonic flow meter and calibration of transmitter etc., complete as directed by the TWAD Board officers.

For Collector wells, Common Sump and Booster Pumping Stations

Charges for refilling the extinguishing agent (Dry Chemical Powder - 4 Kg) in the existing fire extinguisher, refilling the extinguishing agent by appropriate weight for size of the unit, re-pressurizing the unit to the required pressure, completing a leak test, installing a new tamper seal on the safety pin and attaching a new recharge tag etc., complete as directed by the TWAD Board officers.

Supply,delivery of lubricating oil viscocity grade 68 for Vertical Turbine Motors as per IS specifications etc., complete as directed by TWAD Board officials.

Supply and delivery of Gland Packing Rope - 10mm thickness, Graphite impegrated Rope for VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of Gland Packing Rope - 12mm thickness, Graphite impegrated Rope VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of copper fuse wire, Tinned copper wire SWG-12 as per IS specifications etc, complete.

Supply and Delivery of Grease, Lithium base multipurpose to 'Grade 3' of IS:7623, Operating temperature for Grease -20oC to +120oC, etc., complete.

Supply and delivery of Lightening Arrester (Metal Oxide) for 11KV supply - rating: 9KV, 5KA as per IS specifications etc., complete.

Supply and Delivery of 500 Amps porcelain fuse carrier unit as per IS specifications, etc complete.

Supply and Delivery of SMPS power supply unit, 24V DC output, 230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of On Delay Timer unit, 0-30s range, 24DC/230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of 8 pin relay unit, 5 Amp 2 pole 240V AC input supply as per IS specifications, etc complete.

Supply and Delivery of Battery pack 12 V DC, 7 Ah as per IS specifications, etc complete.

Supply and Delivery of Over Voltage Cutoff Device single phase 240V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of LED panel Indicator light, set of Red, Green, Blue, Yellow, 230V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of Cotton waste for cleaning purpose

supply , Delivery & Fixing of electrically operated Actuator Spare Parts item etc, complete and as directed by the TWAD Board officers.

Supply and Delivery of linear controlled electrically operated Actuator Spare Part with position feedback sensor suitable for fixing on the 350mm CI sluice valves with required mechanical adaptor arrangements and mounting accessories etc., complete as directed by TWAD board officials.

HOUSING

SWITCH COMPARTMENT COVER

DECLUTCH LEVER

CLUTCH ROTARK ASSEMBLY

DECLUTCH LATCH

DECLUTCH TRIPPING ARM

WORM SHAFT ASSEMELY

BEARING FLANGE

COMPRESSION SPRING

CLUTCH RING

HEAD WHEEL SET

HEAD WHEEL RETAINER

PINION GEAR & COMPRESSION SPRING

HOLLOW DRIVE SHAFT ASSEMBLY

OIL SEL&"O"RING KIT

CIRCLIP SET

MOTOR PINION

MOTOR MOUNTING FLANGE

SPUR GRAR

WORM GEAR

LIMIT SWITCH COMPLETE ASSEMBLY

TORQUE SWITCH

LIMIT SWITCH DRIVE ASSEMBLE

2 TRAING X 480 TURNS LIMIT SWTICH COUNTER GEAR

TORQUE SWITCH DRIVE ASSEMBLE

KC2 MOTOR (A171) 415 V, 2800 RPM,50 HZ S2-15

MAIN POWER CONTROL BOARD

POWER MODULE

CONTACTOR ASSEMBLY

COMPLEATE LOOM ASSEMBLY

YOKE ASSEMBLY

CENTRE COLUMN

THRUST BEARING WITH WASHER (2 Bearings with 4 washers)

LOCAL/REMOTE KNOB ASSEMBLY OPEN/CLOSE/STOP KNOB

POTENTIAL TRANSMITTER

Attending Major repair works to transformer 2000KVA/11KV/433V under Melur CWSS

Labour Charges for dismantling of 2000 KVA Transformer at Melur CWSS Head works with all accessories by using crane etc. Complete as directed by TWAD Board officers

Supply and delivery of HV 11KV copper Dual Con. Super enameled Winding Coils for 3 phase to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of HV 433KV Copper Winding for 3 phase insulation to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 3 phase insulation material to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of new transformer oil to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 11KV HV bushing with Metal parts to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 433V LV bushing copper rod to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of silica gel breather to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of capillary type thermometer including accessories to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of gasket & oil seals to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of paint to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for hot air chamber treatment for IR value improvement Work 900C for 2 days to 2000 KVA Transformer etc., complete as directed by TWAD board officers.

Charges for Transformer tank cleaning and painting work to 2000 KVA Transformer as per IS Specification as directed by TWAD Board officers.

Charges for attending Core winding job to tank accessories fixing as per IS specification including testing work with loading to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for Re-erection of 2000 KVA Transformer and all accessories at Melur CWSS Head works by using crane and fixing etc complete as directed by TWAD Board officers.

Conveyance charges for transformers unit from Melur CWSS Head works to work shop site and work shop site to Melur CWSS Head works completion of rectification works etc complete as directed by TWAD Board officers

Painting of Sump, Pumproom, Comound wall, Grill gate and TWAD emblem Etc.,

White washing two coats using fine screened shell lime including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Inside and Ceiling) (Pump Room & Compound wall)

Applying two coats of Cement Paint of approved colour and quality over cement plastered wall surfaces and new surfaces including cleaning, preparing the surface area and including cost of all materials, labour charges, curing etc., complete and as directed by TWAD Board Officers. (Pump Room , Compound wall & Sump)

Applying of Painting with ready mixed paint two coat of approved colour and quality over Iron works including cleaning, preparing the surface area and including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Grill Gate)

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board, ncluding cost of all consumables, one coat of base paint, scaffolding charges including painting NRDWP Logo. (Pump Room & Sump)

Plastering for CM 1:3 20mm Thickness of decayed surfaces existing MS transmission main, Pump rooms, Sumps. including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers.

COST OF CHEMICALS

Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (such as bleaching powder, chlorine cylinder, silver ionization rods as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc complete as directed by the TWAD Board officers.

Supply, delivery of stable Bleaching Powder anywhere in the schemes maintained by TWAD Board as per IS 1065:1989 (Grade I) and amended from time to time including freight, loading, unloading, transporation, transit insurance, all other incidental charges at site of work etc., complete and as directed by TWAD Board officers. ( 01.04.2027 to 31.03.2028 )

Supply and delivery of Liquid Chlorine cylinder as per IS specification (with chlorine 99.80% moisture, Na203 Hydrogen and carbon dioxide are to be Nil) including loading, freight, unloading, stacking transit insurance and all other incidental charges and as directed by TWAD Board officers. ( 01.04.2027 to 31.03.2028 )

For the year 2028-29 (From 01.04.2028 to 31.03.2029)

Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protector of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of 63.53 MLD earmarked quantity of water to the beneficiaries as per Annexure, carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity, etc., complete and as directed by TWAD Board officers

From 01.04.2028 to 31.03.2029 Totally 23188.45 ML (63.53 ML x 365 Days)

LEAKS

Attending Leaks in the pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.2.5 of General conditions of Contract - Part II. etc, complete and as directed by the TWAD Board officers.

Earth work excavation and depositing on bank in Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth SS 20 B, etc., for leak rectification works for the following sizes of PVC/DI/MS pipes with standard trench width and depth etc., complete and as directed by the TWAD Board officers.

Ist Depth of 2m

PVC/DI/MS Pipe of various sizes

IIst Depth of 1m

MS Pipe of various sizes

Dewatering using 5HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc for the following sizes of PVC/DI/MS pipes complete and as directed by TWAD Board officers

Supply and delivery of the following sizes of unplastisized PVC Rigid pipes and specials confirming to IS other specifications as amended from time to time with ISI marking as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges, etc., complete and as directed by TWAD Board officers.

63mm PVC 4KSC

75mm PVC 4KSC

90mm PVC 4 KSC

110mm PVC 4KSC

140mm PVC 4KSC

160mm PVC 4KSC

200mm PVC 4KSC

140mm PVC 6KSC

160mm PVC 6KSC

200mm PVC 6KSC

Supply and delivery of following sizes of PVC Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

PVC COUPLER FABRICATED

63 mm PVC Coupler Fabricated 4 KSC

75 mm PVC Coupler Fabricated 4 KSC

90 mm PVC Coupler Fabricated 4 KSC

110 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 4 KSC

160 mm PVC Coupler Fabricated 4 KSC

200 mm PVC Coupler Fabricated 4 KSC

140 mm PVC Coupler Fabricated 6 KSC

160 mm PVC Coupler Fabricated 6 KSC

200 mm PVC Coupler Fabricated 6 KSC

PVC Bends Fabricated

63 mm PVC Bends Fabricated 4 KSC

75 mm PVC Bends Fabricated 4 KSC

90 mm PVC Bends Fabricated 4 KSC

110 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 4 KSC

160 mm PVC Bends Fabricated 4 KSC

200 mm PVC Bends Fabricated 4 KSC

140 mm PVC Bends Fabricated 6 KSC

160 mm PVC Bends Fabricated 6 KSC

200 mm PVC Bends Fabricated 6 KSC

PVC Equal Tee Fabricated

63 mm PVC Equal Tee Fabricated 4 KSC

75 mm PVC Equal Tee Fabricated 4 KSC

90 mm PVC Equal Tee Fabricated 4 KSC

110 mm PVC Equal Tee Fabricated 4 KSC

140 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 4 KSC

200 mm PVC Equal Tee Fabricated 4 KSC

160 mm PVC Equal Tee Fabricated 6 KSC

200 mm PVC Equal Tee Fabricated 6 KSC

PVC Elbow Fabricated

63 mm PVC Elbow Mould

75 mm PVC Elbow Mould

90 mm PVC Elbow Mould

110 mm PVC Elbow Mould

140 mm PVC Elbow Mould

160 mm PVC Elbow Mould

200 mm PVC Elbow Mould

PVC MTA

63 mm PVC MTA

75 mm PVC MTA

90 mm PVC MTA

110 mm PVC MTA

140 mm PVC MTA

160 mm PVC MTA

200 mm PVC MTA

Flanged Tail Piece

63 mm Flanged Tail Piece

75 mm Flanged Tail Piece

90 mm Flanged Tail Piece

110 mm Flanged Tail Piece

140 mm Flanged Tail Piece

160 mm Flanged Tail Piece

200 mm Flanged Tail Piece

PVC REDUCER COUPLER

63 mm x 50 mm

75 mm x 63 mm

90 mm x 63 mm

90 mm x 75 mm

110 mm x 63 mm

110 mm x 75 mm

110 mm x 90 mm

140 mm x 63 mm

140 mm x 90 mm

140 mm x 110 mm

160 mm x 110 mm

160 mm x 140 mm

Supply and delivery of the following sizes of Rigid GI Pipes and specials confirming to IS other specifications as amended from time to time with ISI marking and solvent cement as specified in ISI and having the required working pressure and delivery at site of work including loading, unloading, freight, stacking and transit, insurance charges etc. complete and as directed by TWAD Board officers.

50 mm GI Pipe Medium Class

65 mm GI Pipe Medium Class

80 mm GI Pipe Medium Class

100 mm GI Pipe Medium Class

125 mm GI Pipe Medium Class

150 mm GI Pipe Medium Class

Supply and delivery of following sizes of GI Specials conforming to IS specifications at site of work including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

50 mm G.I. Equal Elbow plain

50 mm G.I. Equal Tee plain

50 mm G.I. Coupling

50 mm G.I. Flange set

50 mm G.I. Hex Nipple

50 mm G.I.Bend

50 mm G.I.Union

50 mm Rubber sheet for Flange set

50 mm G.M. Non Return valves

65 mm G.I. Equal Elbow plain

65 mm G.I. Equal Tee plain

65 mm G.I. Coupling

65 mm G.I. Flange set

65 mm G.I. Hex Nipple

65 mm G.I.Bend

65 mm G.I.Union

65 mm Rubber sheet for Flange set

65 mm G.M. Non Return valves

80 mm G.I. Equal Elbow plain

80 mm G.I. Equal Tee plain

80 mm G.I. Coupling

80 mm G.I. Flange set

80 mm G.I. Hex Nipple

80 mm G.I.Bend

80 mm G.I.Union

80 mm Rubber sheet for Flange set

80 mm G.M. Non Return valves

100 mm G.I. Equal Elbow plain

100 mm G.I. Equal Tee plain

100 mm G.I. Coupling

100 mm G.I. Flange set

100 mm G.I. Hex Nipple

100 mm G.I.Bend

100 mm G.I.Union

100 mm Rubber sheet for Flange set

125 mm G.I. Equal Elbow plain

125 mm G.I. Equal Tee plain

125 mm G.I. Coupling

125 mm G.I. Flange set

125 mm G.I. Hex Nipple

125 mm G.I.Bend

125 mm G.I.Union

125 mm Rubber sheet for Flange set

150 mm G.I. Equal Elbow plain

150 mm G.I. Equal Tee plain

150 mm G.I. Coupling

150 mm G.I. Flange set

150 mm G.I. Hex Nipple

150 mm G.I.Bend

150 mm G.I.Union

150 mm Rubber sheet for Flange set

Jointing the C.I/ D.I-S/S pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing. (including cost of jointing materials) etc. complete and as directed by TWAD Board officers.

100 mm DI K7

125 mm DI K7

150 mm DI K7

200 mm DI K7

250 mm DI K7

300 mm DI K7

350 mm DI K7

400 mm DI K7

450 mm DI K7

500 mm DI K7

Supply and delivery of following sizes of M.S. PIPES- SPIRAL/LONGITUDIDNAL WELDING AS PER IS 3589/2001 WITH INTERNAL LINING AND EXTERNAL COATING MADE WITH FE410 including loading, unloading,transportation, insurance, etc., Complete and as directed by TWAD Bd. officers.

273X6.3 mm Thickness MS pipe

355.6X8 mm Thickness MS pipe

610X6.3 mm Thickness MS pipe

711X7.1 mm Thickness MS pipe

1118X8.8 mm Thickness MS pipe

Supply and delivery of Hardcrete oil as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for various sizes of DI Pipes.

Supply and delivery of Lead wool as per sample including loading, unloading and transportation charges etc. complete and as directed by TWAD Bd. Officers for the various sizes of DI Pipes.

Hire Charges for 40KVA Genset The hire charges includes depreciation, maintenance & repair charges, interest, Fuel charges include, cost of diesel, oil & lubricants. Crew charges include wages of operator & helper, on shift basis. for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Genset 40 KVA

Hire Charges for 3 phase welding machine, Grinding machine and Gas cutting set for attending leaks/burst in the Pumping/Gravity main MS/DI pipe lines, complete and as directed by the TWAD Board officers.

III phase welding machine

Grinding machine

Gas cutting

Labour charges for welding, Grinding, Gas Welding of various sizes of MS/DI pipes damaged portions with required runs of welding, including cost of labour for attending welding/ grinding/ cutting and allied works on war footing basis complete as directed by the TWAD Board Officers.

Welder Gr 1 (Per day - 8 Hrs for DI & MS Pipes)

Gas cutter (MS Pipes)

Supply of Oxygen gas with all accessories safety equipements for cutting and fabrication works for attending leaks/burst in the Pumping/Gravity main of MS/DI pipe lines, complete and as directed by the TWAD Board officers.

Oxygen gas

Supply, delivery and fixing of MS Plate for attending leak in DI Pipes

8 mm Thickness MS Plate for DI Line for All Class (0.15mx0.15x0.008mx7850kg/m3)

Supply and Delivery of MS specials without inside lining and outside coating but with anti rust painting as per IS 14589-1999 for MS Pipes burst inclusive of transportation charges anywhere in Tamilnadu etc. complete and as directed by TWAD Board officers.

1100mm x 8.8 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.8mm x 7850 Kg/m3)

900mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

800mm x 8.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 8.0mm x 7850 Kg/m3)

700mm x 7.10 mm Thickness MS pipe cut piece (1.5m x 0.5m x 7.10mm x 7850 Kg/m3)

600mm x 6.0 mm Thickness MS pipe cut piece (1.5m x 0.5m x 6.0mm x 7850 Kg/m3)

Refilling with excavated soil (other than sand)complying with standard specification in layers of 15cm watered well rammed and consolidated after the pipes and specials are laid,jointed and tested etc. and removing and depositing the surplus earth at the places shown by the TWAD Board Officers.

For PVC/DI/MS Pipes of various sizes

REPAIR AND RENEWAL OF PUMPSETS

Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers

Rewinding of motor and reconditioning of pump and repair works to various capacity open well submersible pumpsets including cost of all materials, conveyance, labour charges for removing and re-erection of submersible pumpset etc, complete and as directed by the TWAD Board officers.

Open well Submersible Pumpset

1 HP Open well submersible Pumpset

2 HP Open well submersible Pumpset

3 HP Open well submersible Pumpset

5 HP Open well submersible Pumpset

7.5 HP Open well submersible Pumpset

10 HP Open well submersible Pumpset

12.5 HP Open well submersible Pumpset

15 HP Open well submersible Pumpset

20 HP Open well submersible Pumpset

25 HP Open well submersible Pumpset

30 HP Open well submersible Pumpset

40 HP Open well submersible Pumpset

60 HP Open well submersible Pumpset

75 HP Open well submersible Pumpset

Horizontal Split Casing centrifugal Pumpset

Rewinding of Motor and repair works to various capacity Centrifugal HSC Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Centrifugal HSC Motors etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpset

40 HP centrifugal HSC Pumpset

120 HP centrifugal HSC Pumpset

Repair and reconditoning works in various capacity Centrifugal HSC Pumpsets including cost of all materials (excluding bronze impeller), conveyance, labour charges for removing and re-erection of Centrifugal HSC Pumpsets etc., complete and as directed by the TWAD Board officers.

20 HP centrifugal HSC Pumpsets

40 HP centrifugal HSC Pumpsets

120 HP centrifugal HSC Pumpsets

Vertical Turbine Pumpset

Rewinding of Motor and repair works to various capacity Vertical Turbine Motors including cost of all materials, conveyance, labour charges for removing and re-erection of Vertical Turbine Motors etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditoning works in various capacity Vertical Turbine Pumpsets including cost of all materials (excluding bronze impeller, SS Shaft, MS column pipe), conveyance, labour charges for removing and re-erection of Vertical Turbine Pumpsets etc., complete and as directed by the TWAD Board officers.

For 125 HP V T pumpset

For 135 HP V T pumpset

For 270 HP V T pumpset

For 330 HP V T pumpset

Repair and reconditioning of starter Contactors etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Electro magnetic Contactors Suitable for Starter in AC Three Phase 440V rating Conforming to IS/IEC 60947-4-1 etc., complete as directed by TWAD Board officers.

Repair and replacement of Over Load relay (OLR) etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Directly operated Bimetallic Thermal overload relaywhich operates in case of overload and also in case of under voltage with manual and auto reset mode etc., complete as directed by the TWAD Board officers.

upto 5A

Supply and Delivery of Digital Three Phase Ammeter Class 1-5A (96 mm X 96 mm ) etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Digital Voltmeter- Three Phase Class 1-AC etc, complete as directed by the TWAD Board officers.

Supply and Delivery of Copper Flat (50 x 6 mm) as per IS Specifications etc., complete and as directed by the TWAD Board officers.

Repair and reconditioning of Phase failure priventer etc, complete and as directed by the TWAD Board officers.

Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply etc, complete as directed by the TWAD Board officers.

Repair and reconditioning of Miniature circuit Breaker (MCB) 4 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of MINIATURE CIRCUIT BREAKERS 240 V/415 V 50HZ AC SUPPLY SUITABLE FOR BOTH LIGHTING AND MOTOR CIRCUITS.

Four pole 6A to 32A, 10 KA (Higher End)

Four pole 63A,10 KA (Higher End)

Repair and reconditioning of Molded Case circuit Breaker (MCCB) 3 Pole etc, complete and as directed by the TWAD Board officers.

Supply and delivery of following Range AMPS 3/4 Pole MCCB Switch (Moulted case circuit breakers) to control EB supply from E.B Pole to Main Panel Board

32 -100 Amps 3 Pole MCCB Switch

125 Amps 3 Pole MCCB Switch

160 Amps 3 Pole MCCB Switch

200 Amps 3 Pole MCCB Switch

250 Amps 3 Pole MCCB Switch

320 Amps 3 Pole MCCB Switch

400 Amps 4 Pole MCCB Switch

800 Amps 4 Pole MCCB Switch

Repair and reconditioning of Power Capacitor for Power factor improvement etc, complete and as directed by the TWAD Board officers.

Supply and delivery of Power capacitor for power factor improvement with oil filled with discharge resistance 3 phase 415/440V 50 HZ conforming to ISS with ISI marking etc, complete and as directed by the TWAD Board officers.

3 KVAR upto 5 HP

5 KVAR 10 HP to 12.5 HP

10 KVAR 15 HP to 20 HP

15 KVAR 25 HP to 40 HP

35 KVAR 40 HP to 75 HP

60 KVAR 120 HP

140 KVAR 270 HP

160 KVAR 330 HP

Repair and reconditioning of Supply of Cable and Laying etc, complete and as directed by the TWAD Board officers.

Supply, delivery of LT cables 1.1 KV Grade 3 , 3.5 and 4 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables Conforming to IS 7098 (Part I)/1988 and as amended thereafter with ISI marking for the following sizes as directed by the TWAD Board Officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Laying of LT cables 1.1 KV Grade 3 and 3.5 Core Armoured Aluminium Conductor XLPE Insulated PVC Sheathed Cables as per IE rules for the following sizes as directed by the TWAD Board Officers.

For laying in trenches inside the pump room

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Jointing of L.T. cables- 3 and 3.5 core 1.1 KV grade Armoured Aluminium conductor cable conforming to IS 1554 part I and as amended thereafter with ISI marking including joints, jointing materials and labour etc complete as directed by the TWAD Board officers.

4 Sq. mm 3 Core Cable

6 Sq. mm 3 Core Cable

10 Sq. mm 3 Core Cable

16 Sq. mm 3 Core Cable

25 Sq. mm 3 Core Cable

50 Sq. mm 3 Core Cable

70 Sq. mm 3 Core Cable

95 Sq. mm 3 Core Cable

120 Sq. mm 3 Core Cable

185 Sq. mm 3 Core Cable

240 Sq. mm 3.5 Core Cable

300 Sq. mm 3 Core Cable

400 Sq. mm 3 Core Cable

Supply and Delivery of Cable gland suitable for following sizes

3 Core 95 sq.mm UG cable

3 Core 185 sq.mm UG cable

3 Core 240 sq.mm UG cable

3 Core 300 sq.mm UG cable

3 Core 400 sq.mm UG cable

Supply and Delivery of Aluminium CRIMPING LUGS SUITABLE FOR THE FOLLOWING SIZES as per IS Specifications etc complete as directed by the TWAD Board officers.

Attending repair, rectification and reconditioning of CI Sluice valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Sluice valve etc complete as directed by the TWAD Board officers.

50 mm CI Sluice valve

65 mm CI Sluice valve

80 mm CI Sluice valve

100 mm CI Sluice valve

125 mm CI Sluice valve

150 mm CI Sluice valve

200 mm CI Sluice valve

250 mm CI Sluice valve

300 mm CI Sluice valve

350 mm CI Sluice valve

400 mm CI Sluice valve

450 mm CI Sluice valve

500 mm CI Sluice valve

Attending repair, rectification and reconditioning of DI D/F Gate Sluice valves(soft seated) including cost of all material, conveyance, labour charges for removing and re-erection of DI D/F Gate Sluice valve etc complete as directed by the TWAD Board officers.

150 mm DI Sluice Valve

250 mm DI Sluice Valve

350 mm DI Sluice Valve

400 mm DI Sluice Valve

450 mm DI Sluice Valve

500 mm DI Sluice Valve

600 mm DI Sluice Valve

700 mm DI Sluice Valve

800 mm DI Sluice Valve

900 mm DI Sluice Valve

1100 mm DI Sluice Valve

Attending repair, rectification and reconditioning of CI Double Air valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Double Air valve etc complete as directed by the TWAD Board officers.

40 mm Double Air Valve

50 mm Double Air Valve

80 mm Double Air Valve

Attending repair, rectification and reconditioning of DI Single chamber Air release valve including cost of all material, conveyance, labour charges for removing and re-erection of DI Single chamber Air release valve etc complete as directed by the TWAD Board officers.

50 mm DUOJET Air Valve

80 mm DUOJET Air Valve

100 mm DUOJET Air Valve

150 mm DUOJET Air Valve

200 mm DUOJET Air Valve

Attending repair, rectification and reconditioning of DI Non Return Valve including cost of all material, conveyance, labour charges for removing and re-erection of DI Non return valve etc complete as directed by the TWAD Board officers.

100 mm DI Non - Return Valve

125 mm DI Non - Return Valve

150 mm DI Non - Return Valve

200 mm DI Non - Return Valve

250 mm DI Non - Return Valve

Attending repair, rectification and reconditioning of CI Non Return Valve including cost of all material, conveyance, labour charges for removing and re-erection of CI Non return valve etc complete as directed by the TWAD Board officers.

300 mm CI Non - Return Valve

350 mm CI Non - Return Valve

400 mm CI Non - Return Valve

600 mm CI Non - Return Valve

700 mm CI Non - Return Valve

Supply and Delivery of G.M GATE VALVES AS PER IS BS 5154 and related IS Specifications inclusive of transportation charges any where in Tamilnadu etc complete as directed by the TWAD Board officers.

50 mm G.M. Gate valves

65 mm G.M. Gate valves

80 mm G.M. Gate valves

100 mm G.M. Gate valves

125 mm G.M. Gate valves

CLEANING OF SUMPS

Removal of sediments and deposition of sludge, silt,Particles inside the sump at various capacities by engaging required labours and diesel pumpsets and cleaning the side wall using wire brushes, brooms, collecting , lifting of the deposited slit particles on above the sump and washing side wall and the slab using bleaching powder including lighting arrangements and safety arrangements inside the sump, hire charges for the buckets, rope, etc and supply of bleaching powder for cleaning purposes etc complete and as directed by TWAD Board officers

FOR 0.05 LL - 0.10 LL Capacity Sump ( 2 x 97 Nos )

FOR 0.15 LL - 0.30 LL Capacity Sump ( 2 x 94 Nos )

FOR 0.35 LL- 0.50 LL Capacity Sump ( 2 x 27 Nos )

FOR 0.55 LL- 1.00 LL Capacity Sump ( 2 x 37 Nos )

FOR 1.05 LL - 1.50 LL Capacity Sump ( 2 x 11 Nos )

FOR 1.55 LL - 2.00 LL Capacity Sump ( 2 x 10 Nos )

FOR 2.05 LL - 2.50 LL Capacity Sump ( 2 x 2 Nos )

FOR 2.55 LL - 3.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 3.05 LL - 4.00 LL Capacity Sump ( 2 x 4 Nos )

FOR 4.05 LL - 5.00 LL Capacity Sump ( 2 x 2 Nos )

FOR 5.05 LL - 7.50 LL Capacity Sump

FOR 7.55 LL - 10.00 LL Capacity Sump

FOR 10.05 LL - 12.50 LL Capacity Sump

FOR 12.55 LL - 15.00 LL Capacity Sump

FOR 20.05 LL - 25.00 LL Capacity Sump

FOR 25.05 LL - 30.00 LL Capacity Sump

FOR 35.05 LL - 40.00 LL Capacity Sump

FOR 40.05 LL - 45.00 LL Capacity Sump

Desilting of light or sandy soil or silt from infiltration wells below water level including the charges for special tools and plants and air compressor etc complete as directed by the TWAD Board officers.

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Removing of sand and silt filled in the radial arms of the collector well inside and cleaning of radial arms by using a wire brushes with special tools and plants and developing the radial for increasing the yield in the well using UPVC pipes for water pressure with special tools and plants including cost of labour for working inside of collector well and fixing of special valves and equipments for cleaning of arms and assured required yield for pumping quantity for the pump set erected in the collector well etc. complete( At the time of work done, flow is required in the river) as directed by TWAD Board Officials

Collector wells at Mettu Mahadhanapuram, Mahadhanapuram and Sithalavai

Chlorine plant operation and maintenance

supply , Delivery & Fixing of spares in Chlorination system etc, complete and as directed by the TWAD Board officers.

Pressure reducing valve including IS: 2062 steel Body, High tensile body bolt, Brass loading screw, PTFE Diaphragm, seat spring steel cadmium plated, Top spring Has alloy “c” silver plated, Bottom spring, Glass filled PTFE Spindle etc

Flexible copper connector tube 9.5mm O.D x 2.0M x 16swg, I.S – 191, including adapter IS – 319 both sides, Brass Bush and Nut etc, 2 meters length

Supply & delivery of chlorine key

Chlorine gas flow Rota meter including glass tube with float, Stopper Spindle, Top nut, Bottom luck nut, with Rubber gasket, With fittings -

Gas filter including ASTM A 106 Gr.B Seamless CS 80 Sch body, ASTM A 105 SORF Flange carbon steel holdup rod IS 2062 bottom Flange, Antimony lead gasket, Glass wool filter media, silversides wire

Supply and delivery of Manifold frame including Support frame IS A size channel 75mm x 40mm x 6mm length 1500mm x width 1000mm x height 1000mm and bottom Support plate 240mm x 220mm x 20mm thickness and necessary foundation bolt with civil work

Vacuum gauge with adapter MS body including bottom size ½” BSP Thread, Top side ½” BSP thread and pressure gauge range 0-760 mmhg Including S.S Casing 100/150mm dia S.S 316 with silicon oil sensing Element, aluminium die cast case, stainless steel SS 304 Movement, Isolation valve IS -3224 connector IS 2062 filling sealed diaphragm etc

Continous Monitering Single channel chlorine gas leak detection System with digital readout & alarms (CL 9206) Model 9206 Display unit + WP98 FLT CL2 Sensor transmitter + Hooter Sensor Transmitter – Model WP 98FLT Sensor: Electrochemical / 2 wire board Measuring range: 0-100 PPM with lock Min Detectable range: 0.10PPM Display unit (control module) – Model 9206 scanner Mounting: wall mount type for mounting in local/central control rooms Display: Independent digital display of reading, calibration functions, alarm Setting Etc.,

Polypropylene True union ball valve size ¾” fe male threaded for injector

Automatic vacuum regulator to control the required flow of chlorine gas

Frame mounted FRP cabinet for rota meter support

Chlorine Tonner valve to chlorine system copper tube connecting ATC clamp set

Polypropylene Check valve, emergency drain valve, Vacuum gauge isolation valve

Pressure gauge (0–10kg/cm²) including S.S casing 100/150mm Dia, S.S 316 with silicon oil sensing Element, Aluminum Die cast case, Stainless steel (S.S 304) movement isolation valve IS: 3224 connector IS: 2062 filling sealed Diaphragm etc

Chlorine gas face mask with self-contained Breathing apparatus with Medical Oxygen cylinder DLX – 200 bar, use to continuous Operate Duration 45 minutes to fight with gas chlorine cylinder

Pump delivery UPVC pipe line connection, injector crude chlorine solution dozing to GLR necessary fitting, valve, union, complete material

Flow control valve including PVC bottom housing, housing ring gasket and Top housing, spindle, Gland hand wheel, Viton rubber gasket, O ring and brass chromium plated screw etc

Supply and erection of chlorine auxiliary container valve including Monel 400 spindle, brass IS 319 gland and nut PTFE gland packing, Forged AL.SI Bronze valve body and packing collar etc

Charges for rewinding of Reacter unit, including supply of copper flat coil with Class F insulation, fibre class tap roll and charges for dismantling & insulation removing the defective wornout coil, cleaning the core set, servicing of core plates, re-assembling the core, rewinding the reacter with new coil, varnishing, including conveyance charges and re-erection, terminal connecting and testing of FCMA starter etc., complete after deduction of old scraps and as directed by TWAD Board officers.

330 HP FCMA Soft Starter

270HP FCMA Soft Starter

135HP FCMA Soft Starter

125HP FCMA Soft Starter

Charges for filtration of Transformer oil including rent for stream line filtration machine, labour charges for operation, conveyance and other incidental charges, including collection of sample and conducting of Acidity and Break Down Voltage tests, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 2000KVA & 1600 KVA Transformers

Charges for Servicing of 11KV Indoor Vacuum Circuit Breaker including checking all electrical and mechanical links, Visual inspection of breaker, Thorough cleaning of the breaker, Lubrication of all moving parts of mechanism, Oiling of closing & tripping coil, Checking of gear box operation, Checking of test/service aux.switch operation, Checking of tripping mechanism operation, checking of spring coil mechanism, testing of all tripping circuits, and producing test certificate, etc., complete as directed by the TWAD Board officers.

For 11kv Indoor VCB at Common Sump and Booster Pumping Stations

Charges for servicing of Air Circuit Breaker including Visual inspection for any broken parts and replace as needed, Cleaning and lubricating all mechanical linkages, Inspecting all breakers, inspect for damage, wear and deterioration, cleaning and lubricating as required, Checking, cleaning and dressing (if required) the main contacts, clean all covers and arc shields, Carrying out insulation test, phase to phase and phase to earth, Prove mechanical and electrical operation of the breaker by racking breaker to test position and production of Test certificate etc., complete as directed by TWAD Board officers.

For ACB at Common Sump and Booster Pumping Stations

Charges for servicing of Electronic flow meter including testing the flow with portable ultrasonic flow meter and calibration of transmitter etc., complete as directed by the TWAD Board officers.

For Collector wells, Common Sump and Booster Pumping Stations

Charges for refilling the extinguishing agent (Dry Chemical Powder - 4 Kg) in the existing fire extinguisher, refilling the extinguishing agent by appropriate weight for size of the unit, re-pressurizing the unit to the required pressure, completing a leak test, installing a new tamper seal on the safety pin and attaching a new recharge tag etc., complete as directed by the TWAD Board officers.

Supply,delivery of lubricating oil viscocity grade 68 for Vertical Turbine Motors as per IS specifications etc., complete as directed by TWAD Board officials.

Supply and delivery of Gland Packing Rope - 10mm thickness, Graphite impegrated Rope for VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of Gland Packing Rope - 12mm thickness, Graphite impegrated Rope VT/HSC Pumpsets and Sluice valves as per IS specifications etc, complete.

Supply and delivery of copper fuse wire, Tinned copper wire SWG-12 as per IS specifications etc, complete.

Supply and Delivery of Grease, Lithium base multipurpose to 'Grade 3' of IS:7623, Operating temperature for Grease -20oC to +120oC, etc., complete.

Supply and delivery of Lightening Arrester (Metal Oxide) for 11KV supply - rating: 9KV, 5KA as per IS specifications etc., complete.

Supply and Delivery of 500 Amps porcelain fuse carrier unit as per IS specifications, etc complete.

Supply and Delivery of SMPS power supply unit, 24V DC output, 230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of On Delay Timer unit, 0-30s range, 24DC/230V AC input supply as per IS specifications, etc complete.

Supply and Delivery of 8 pin relay unit, 5 Amp 2 pole 240V AC input supply as per IS specifications, etc complete.

Supply and Delivery of Battery pack 12 V DC, 7 Ah as per IS specifications, etc complete.

Supply and Delivery of Over Voltage Cutoff Device single phase 240V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of LED panel Indicator light, set of Red, Green, Blue, Yellow, 230V AC supply and as per IS Specifications etc., complete.

Supply and Delivery of Cotton waste for cleaning purpose

supply , Delivery & Fixing of electrically operated Actuator Spare Parts item etc, complete and as directed by the TWAD Board officers.

Supply and Delivery of linear controlled electrically operated Actuator Spare Part with position feedback sensor suitable for fixing on the 350mm CI sluice valves with required mechanical adaptor arrangements and mounting accessories etc., complete as directed by TWAD board officials.

HOUSING

SWITCH COMPARTMENT COVER

DECLUTCH LEVER

CLUTCH ROTARK ASSEMBLY

DECLUTCH LATCH

DECLUTCH TRIPPING ARM

WORM SHAFT ASSEMELY

BEARING FLANGE

COMPRESSION SPRING

CLUTCH RING

HEAD WHEEL SET

HEAD WHEEL RETAINER

PINION GEAR & COMPRESSION SPRING

HOLLOW DRIVE SHAFT ASSEMBLY

OIL SEL&"O"RING KIT

CIRCLIP SET

MOTOR PINION

MOTOR MOUNTING FLANGE

SPUR GRAR

WORM GEAR

LIMIT SWITCH COMPLETE ASSEMBLY

TORQUE SWITCH

LIMIT SWITCH DRIVE ASSEMBLE

2 TRAING X 480 TURNS LIMIT SWTICH COUNTER GEAR

TORQUE SWITCH DRIVE ASSEMBLE

KC2 MOTOR (A171) 415 V, 2800 RPM,50 HZ S2-15

MAIN POWER CONTROL BOARD

POWER MODULE

CONTACTOR ASSEMBLY

COMPLEATE LOOM ASSEMBLY

YOKE ASSEMBLY

CENTRE COLUMN

THRUST BEARING WITH WASHER (2 Bearings with 4 washers)

LOCAL/REMOTE KNOB ASSEMBLY OPEN/CLOSE/STOP KNOB

POTENTIAL TRANSMITTER

Attending Major repair works to transformer 2000KVA/11KV/433V under Melur CWSS

Labour Charges for dismantling of 2000 KVA Transformer at Melur CWSS Head works with all accessories by using crane etc. Complete as directed by TWAD Board officers

Supply and delivery of HV 11KV copper Dual Con. Super enameled Winding Coils for 3 phase to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of HV 433KV Copper Winding for 3 phase insulation to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 3 phase insulation material to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of new transformer oil to 2000KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 11KV HV bushing with Metal parts to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of 433V LV bushing copper rod to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of silica gel breather to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of capillary type thermometer including accessories to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of gasket & oil seals to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Supply and delivery of paint to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for hot air chamber treatment for IR value improvement Work 900C for 2 days to 2000 KVA Transformer etc., complete as directed by TWAD board officers.

Charges for Transformer tank cleaning and painting work to 2000 KVA Transformer as per IS Specification as directed by TWAD Board officers.

Labour charges for new windings rewinding with new insulation off load taps switch connection both with delta star connection by copper bracing work two coatings varnish apply work to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for attending Core winding job to tank accessories fixing as per IS specification including testing work with loading to 2000 KVA Transformer as per IS specifications as directed by TWAD board officers.

Charges for Re-erection of 2000 KVA Transformer and all accessories at Melur CWSS Head works by using crane and fixing etc complete as directed by TWAD Board officers.

Conveyance charges for transformers unit from Melur CWSS Head works to work shop site and work shop site to Melur CWSS Head works completion of rectification works etc complete as directed by TWAD Board officers

Painting of Sump, Pumproom, Comound wall, Grill gate and TWAD emblem Etc.,

White washing two coats using fine screened shell lime including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Inside and Ceiling) (Pump Room & Compound wall)

Applying two coats of Cement Paint of approved colour and quality over cement plastered wall surfaces and new surfaces including cleaning, preparing the surface area and including cost of all materials, labour charges, curing etc., complete and as directed by TWAD Board Officers. (Pump Room , Compound wall & Sump)

Applying of Painting with ready mixed paint two coat of approved colour and quality over Iron works including cleaning, preparing the surface area and including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers. (Grill Gate)

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board, ncluding cost of all consumables, one coat of base paint, scaffolding charges including painting NRDWP Logo. (Pump Room & Sump)

Plastering for CM 1:3 20mm Thickness of decayed surfaces existing MS transmission main, Pump rooms, Sumps. including cost of all materials, labour charges, etc., complete and as directed by TWAD Board Officers.

COST OF CHEMICALS

Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (such as bleaching powder, chlorine cylinder, silver ionization rods as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc complete as directed by the TWAD Board officers.

Supply, delivery of stable Bleaching Powder anywhere in the schemes maintained by TWAD Board as per IS 1065:1989 (Grade I) and amended from time to time including freight, loading, unloading, transporation, transit insurance, all other incidental charges at site of work etc., complete and as directed by TWAD Board officers. ( 01.04.2028 to 31.03.2029 )

Supply and delivery of Liquid Chlorine cylinder as per IS specification (with chlorine 99.80% moisture, Na203 Hydrogen and carbon dioxide are to be Nil) including loading, freight, unloading, stacking transit insurance and all other incidental charges and as directed by TWAD Board officers. ( 01.04.2028 to 31.03.2029 )

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