Improvement of Water Supply System in Natrampalli Town Panchayat

Amount

Provision for yield and quality test and geophysical survey

Earthwork excavation above water level in light or sandy soil for infiltration wells, suction wells etc including levelling the site with the initial lead of 10m

For First depth of 2m

Reinforced cement concrete M 30 Concrete using machine crushed HBG stone jelly excluding cost of centering, strutting, supply and fabrication of steel reinforcement but including cost of curing etc complete

Sinking of Infiltration well of 6.0 m internal dia and 6.90 m outer dia below pilasters level including all incidental charges in sandy of light soil.

First depth of 2m

Second depth of 2m

Third depth of 2m

Fourth depth of 2m

Fifth depth of 2m

Porous Concrete 1:4 (one cement, Four hard broken granity jelly of size 20mm) for steining of infiltration well excluding cost of centering but including curing etc., complete and as directed by the TWAD Board Officers.

Brick work in CM 1:5 (one cement and five sand) using country bricks of size 22X11X5 cm for steining of 55 cm thick for infiltration well including curing etc., complete and as directed by TWAD Board Officers.

Providing steel centering using MS plates of size 90cmX 60cm,13G to 10G thick welded with 25mmX3mmMS angles supported with country wood scantling of size 10cmX6.5cm at 50cm C/C strutting with casurina props of 10cm 13cm dia as directed by the TWAD Board Officers

For Plane surface - Up to 3.30m balow / Above GL

For curved Surface - Up to 3.30m balow / Above GL

Supply, delivery, fabrication and placing in position of RTS rods for reinforcement for binding ring, plasters, roof slab and well curb including cost of binding and as directed by TWAD Board Officers.

As per bar bending schedule

Plastering with CM1:5 (one cement and five sand) 12mm thick including cost of materials, labour charges for finishing, curing etc., complete and as directed TWAD Board Officers.

Plastering with cement mortar 1:3 (One part of Cement and Three part of Plastering Sand (P- Sand)) 20mm thick in all floors including cost and conveyance of all materials to site and labour charges etc, complete complying with standard specifications (S.I.309)

Supply, delivery and fixing in position 60mm thick RCC manhole coverslab of size 0.6 X 0.6m with necessary reinforcement and MS angle of size 50mmX 6 mm thick fixed in alround the edges of the slab complete and as directed by the TWAD Board Officers. WD-M1357

Supply, delivery and fixing of CI steps in position at 30cm center to center in zig-zag manner and as diredted by the TWAD Board Officers .MW-M0237

Providing ventilating arrangement by fixing in position 160mmPVC pipe with cowl and as directed by TWAD Board Officers.

160 mm pvc

Providing trial boring and confirmatory bores to ascertain the sand depth and localing well site before commencing the work WD-W0767

Providing for cutting edge using 12 G MS sheets including the cost of fabrication welding and placing in the position in the curb including supply of the MS sheet ( 5.107 sqm x 26.79 kg=136.77 kg)

Painting two coats for Extrior surface with approved Interior Plastic Emulsion paint approved quality and colour over a priming coat, including thorough scrapping, clean removal of dirt, etc complete and including necessary plaster of paris, putty, wherever required etc, complete as per standard specification.

Plugging the bottom of the well with corase sand of approved size and grade as directed by Departmental officer

Well curb triangular portion

Painting TWAD emblem on the sump as directed by TWAD Board officers WD-W0745

Supply and delivery of the following sizes of DI pipes as per standard specification

100mm DI D/F Pipes 5.00m length WD-M0763

100mm DI D/F Pipes 1.50m length WD-M0667

100mm DI D/F Pipes 1.00m length WD-M0651

Supply and delivery of following DI specials required as per Std specifications

100mm DI Specials WD-M0778

Earth work excavation and depositing on bank with an initial lead of 10m and initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil

100mm DI D/F Pipes WD-W0662

Refilling the excavated earth after the pipes were laid jointed and tested etc. complete.WD-W0662

100mm DI D/F Pipes WD-W0662

Lowering of DI Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.

100mm DI D/F Pipes WD-W0245

Jointing the DI Pipes and specials with Rubber rings / rubber insertion to the required specifications with MS bolts and nuts etc complete and testing the pipes with required pressure with water (including cost of Jointing materials)

Joints for 100mm DI WD-W0294

Testing of DI pipes with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure inconvenient stetches and attending the bursts if any occured during the test, excluding the cost of pipes, including other incidential and operational charges etc., complete

100mm DI D/F Pipes WD-W0460

Anchorage arrangements for Connecting main

Supply and delivery of the following sizes of DIK7 S/S / DIK9 S/S pipes as per standard Specification.

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Supply and delivery of the DI S/S specials conforming to IS 9523/2000 and as amended from time to time with ISI marking including cost, all taxes, loading, freight unloading and stacking at site etc. complete and as directed by the TWAD Board officers.

DI Specials for Pumping main (sub Data)

Supply and delivery of MJ coller with necessary rubber insertions , bolts & nuts including , loading & unloading, transporting charges, all taxes etc., complete at site as per standard specification and as directed by TWAD Board officers for the following sizes.

200 mm dia M.J Collar for K9 pipes WD-M1547

150 mm dia M.J Collar for K7 Pipes WD-M1546

100 mm dia M.J Collar for K7 Pipes WD-M1545

Supply and delivery of DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years guarantee (Item No. 12.9 SoR)

200 DI D/F Sluice Valves for 200mm DI main WD-M1201

100 DI D/F Sluice Valves for 100mm DI main WD-M1199

Supply and delivery of DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years guarantee (Item No. 12.9 SoR)

150 mm dia DI D/F Air Chamber Valves for scour in 200 mm Main WD-M1196

Supply and delivery of Tamper proof DI single chamber Air release valves with pressure range from PN 1.0 to 2.5 with body and cover made of Ductile Iron of grade GGG 40/45/50 or equivalent grade conforming to IS 1865 with food Grade Epoxy powder coating ( EP-P) inside and for outside of colour blue RAL 5005. ALL internal parts such as float,shell etc., cover bolts, made of Austenitic allloy steel of SS AISI 304/316. The float for DN50 made of polytetrafluroethylene/ Austentic alloy steel of AISI 304/316. Gaskets and seals of EPDM/ Neoprene rubber for TWAD Board works including all taxes, loading freight, transit, unloading and stacking them at site etc. complete and as directed by TWAD Board Officers.

50 mm dia AV in 200 mm Main WD-M1192

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects.

Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished

200mm for 200mm main WD-M1394

Supply and delivery of DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty

200 DI D/F Sluice Valves for 200mm DI main WD-M1201

100 DI D/F Sluice Valves for 100mm DI main WD-M1199

Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty

150 mm dia DI D/F Air Chamber Valves for scour in 200 mm Main WD-M1196

50 mm dia AV in 200 mm Main WD-M1192

Bridge, Channel Crossing & Cross drainage works

Earth work excavation for laying of various type / size of pipes in hard stiff clay, stiff block cotton soil, hard red earth shales murrams, gravel stoney earth and earth mixed with small sized boulders and hard gravelly soil and depositing on bank with an initial lead of 10M and initial lift of 2m including shoring, strutting bailingout water from the trenches wherever necessary and all other incidental charges such as barricading providing danger light etc., complete and as directed by the TWAD Board Officers.

Pumping main and Branch mains

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Refilling the excavated earth after the pipes were laid jointed and tested etc. complete.

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Lowering the following size of DI S/s pipes and specials into the trenches and laying to proper grade and alignment etc. complete and as directed by the TWAD Board Officer

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Jointing the DI Pipes and specials with rubber gaskets (tyton joint) including cost of lubricants, etc., complete as directed byTWAD Board Officers

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Jointing the DI pipes and specials with Mechanical Joint Collars with Rings and fixing in position ,including cost of all labour charges, conveyance, handling, all incidental charges, etc. as directed by the TWAD Board Officers. For jointing the pipes after testing is over For the following pipes

200 mm dia M.J Collar for K9 pipes WD-M1547

150 mm dia M.J Collar for K7 Pipes WD-M1546

100 mm dia M.J Collar for K7 Pipes WD-M1545

Testing of following DI pipes / PVC pipes wiith hydraulic testing equipment by fuilling with water (including cost of water @ Rs.60/KL) and testing to recommended pressure in convinient stetches and attending the bursts if any occured during the tests, excluding cost of pipes, including other incidental and operational charges etc., complete as directed by TWAD Board Officers.

200mm DI K9 S/s Pipes

150mm DI K7 S/s Pipes

100mm DI K7 S/s Pipes

Construction of masonry valve pit for fixing Sluice Valve, Scour valves etc as per type design No.9/43. The foundation will be in PCC 1:4:8 and brick work in C:M 1:5 Plastering in cm 1:3 12mm thick and the pit provided with 100mm thick RCC 1:11/2:3cover slab. The rate should include earth work excavation in various soils met with at the site of work, refilling the pit after the construction of pit, cost of levelling course, brick work, plastering, cut stone RCC cover slab, cost of reinforcemet, fabrication charges and fixing the valves in position inside the pit, laying and jointing of CI pipes and specials etc., complete. The Jointing materials such as bolts nut washers, rubber insertion sheets white lead have to be procured and utilised by the contractor at his own cost etc., complete and as directed by the TWAD Board officers.

Chamber For Sluice valves

200 DI D/F Sluice Valves for 200mm DI main WD-M1201

100 DI D/F Sluice Valves for 100mm DI main WD-M1199

Chamber For Scour Valves

150 mm dia DI D/F Air Chamber Valves for scour in 200 mm Main WD-M1196

Cutting of BT road portion for laying of pipes

Supply and delivery of Bore well type submersible pumpsets with following capacity of lpm against Noted head in Metre suitable for erection into the sumps / Open Wells with stainless steel shaft, bronze impeller and stainer with brass screws, water lubricated bearings and protected from sand. The non return value located at the top of the pump in the discharge outlet connection used to be designed with minimum friction. The pump should be directly coupled to a suitable HP. 2880 RPM, 3 phase, 50 HZ, 380/440 B motor suitable for DOL / Star Delta starters of adequate capacity for continuous operation. The pump should be provided with the minimum length of 20 m suitable size PVC insulated copper flat cable. The pumpset should confirm to IS 8034 and amended thereafter.

Pumping from HW Sump to SRs - 30 HP with Duty of 800 LPM x 100 m Head (1w+1s) WD-M1789

At the Existing Infiltration wells - 3.00 HP with Duty of 300 LPM x 40 m (1w+1s) WD-M1764

At the Proposed Infiltration wells - 3.00 HP with Duty of 400 LPM x 25 m (1w+1s)WD-M1769

FULLY AUTOMATIC AIR BREAK AUTO TRANSFORMER STARTER WITH SINGLE PHASING PREVENTOR WITH AMMETER CONFIRMING TO IS 8544 Part IV WITH AUTO RESTART FACILITY ARE AVAILABLESSupply and delivery of Fully Automatic Auto Transformer Starter suitable for the motor offered. Floor mounting type air/ oil cooled Auto Transformer Starter with tapings at 50%, 65%, 80%, housed in robust steel chamber with arc and main contacts confirming to IS 8544 Part IV and as amended therafter for operation in AC three Phase 50 Hz (+/- 5%), 415V (+/- 10%) with the following components, under voltage release with no volt coil, over load relay with dash pot arrangements, single phasing preventor, LED ON/ OFF switches, Mounted Ammeter, Earth leakage relay, contactor assembly suitable for next standard KW rating, in coming and out going cable entry provisions, transformer tank including first filling of oil etc.

30 HP Panel board for Open well type submersiblepumpsets with standby (1+1) WD-M1952

4.00 HP Panel board for Open well type submersible pumpsets with standby (2+2) For Sump WD-M1910

Supply and delivery of 150 mm dia pressure gauge/ vaccum guage includimg all accessories as per specification ( for Suction and Delivery) to be mounted in teak wood board etc. complete (For Infilteration Well) Page 128 WD-M2030

3.50 Core Armoured Aluminium conductor UG cable

35 sqmm from EB Pole to Meter board & up to Bus bar WD-M1963

3 Core Armoured Aluminium conductor UG cable

25 sqmm from Panel Board to OW type Sub Pumpset at HW sump (2*360) WD-M1962

16 sqmm from Panel Board Inf. Well top (2*210) WD-M1961

3 Core Flat Copper cable

6 sqmm for Inf. Well top to OW Type subPsets (2*2*15m) WD-M1976

Laying of following sizes as detailed below : 3.5 Core Armoured Aluminium / 3 Core Copper conductor cable

35 sqmm from EB Pole to Meter board & up to Bus bar WD-M2016

25 sqmm from Panel Board to OW type Sub Pumpset at HW sump (2*360) WD-M2016

16 sqmm from Panel Board Inf. Well top (2*210) WD-M2016

6 sqmm for Inf. Well top to OW Type subPsets (2*2*15m) WD-M2016

Jointing of following sizes as detailed below :

3.5 Core Armoured Aluminium conductor UG cable

35 sqmm from EB Pole to Meter board & up to Bus bar WD-M1989

Jointing of following sizes as detailed below : 3 Core

25 sqmm from Panel Board to OW type Sub Pumpset at HW sump (2*360)WD-M1988

16 sqmm from Panel Board Inf. Well top (2*210) WD-M1987

6 sqmm for Inf. Well top to OW Type subPsets (2*2*15m) WD-M2002

Supply and delivery of floor mounting type vermin, weather and dust proof power coated factory made LT Cubical panel board fabricated with 14 SWG MS Sheet & MS angle irn frame work with enclosed Copper / Aluminium Bus bar of Electrolyte grade E.91 PVC sleeved of suitable size for phase and neutral with hinged fron door and railway type lock and key arrangments 4 Nos of PVC colour sleeved aluminium bus bar of ample capacity current carrying capacity with all internal wiring as per IE rules and as per IS 8633 and as per safety requirements of CEIG. The design of of panel should facilitate for quick operation os allswitchjes from the front side. The panel bard should be completed with all internal wiring including necessary twin earthing arrangements and consists of the components for controlling incoming and out going supply at the pump room WD-M1955

Supply delivery and erection of LT Metering box at Headworks for 50HP WD-M2031

Supply and delivery of CI / GI / HDPE pipes & specials suitable as per relevent IS for Wells / Sump etc.

For pumping - HW Sump to SRs (Annexure - I)

For pumping - from Inf. Wells to HW Sump (Annexure - II)

Supply and Delivery of 100 MS clamp sets for erection of sub pumpset in sump

Supply and Delivery of 65 MS clamp sets for erection of OW sub psets in Sump

Erection commissioning of Submersible Pumpsets and accessories as directed by TWAD officers

Open well type submersible pumpsets 30 HP for sump WD-W0874

Open well type submersible pumpsets 3.00 HP for Inf. Wells WD-W0871

Twin Earthing for pump room as per I E Rules including cost of all materials for 50 HP (25 to 60 HP) WD-M2036

Wiring with 2x1.5 sq.mm. PVCi nsulated single core unsheathed FRLS copper conductor cable of 1100 V grade insuitable heavy gauge MS conduit pipe on wall and ceiling with MS accessories with 150mmx100mmx75mm MS switch box for 5 A 3 pin non interlocking flush type C S plug wfth painting of suitable colour with continuous earth wire connection of 1.5 sq.mm copper wire for open plug point SD 10

Supply and fixing of single box type 4' 36W fluorescent fitting complete with electronic ballast with TW round blocks on wall or ceiling with flu tube with PVC unsheathed FRLS Copper leads from terminals to the fitting SD 87

Supply and fixing of fancy glass shade and 15 W LED Bulb SD 80

supply and fixing of 48W LED street light fitting with LED (Higher end) with 32mm dia. GI pipe (class B) with 1 no.32 mm GI bend complete on the existing post/ on wall with PVC unsheathed copper leads with MS clamps and with paintings SD 448

Supply and delivery of Bore well type submersible pumpsets with following capacity of lpm against Noted head in Metre suitable for erection into the sumps / Open Wells with stainless steel shaft, bronze impeller and stainer with brass screws, water lubricated bearings and protected from sand. The non return value located at the top of the pump in the discharge outlet connection used to be designed with minimum friction. The pump should be directly coupled to a suitable HP. 2880 RPM, 3 phase, 50 HZ, 380/440 B motor suitable for DOL / Star Delta starters of adequate capacity for continuous operation. The pump should be provided with the minimum length of 20 m suitable size PVC insulated copper flat cable. The pumpset should confirm to IS 8034 and amended thereafter.

Pumping from HW Sump to SRs - 10 HP with Duty of 800 LPM x 40 m Head (1w+1s) WD-M1789

FULLY AUTOMATIC AIR BREAK AUTO TRANSFORMER STARTER WITH SINGLE PHASING PREVENTOR WITH AMMETER CONFIRMING TO IS 8544 Part IV WITH AUTO RESTART FACILITY ARE AVAILABLESSupply and delivery of Fully Automatic Auto Transformer Starter suitable for the motor offered. Floor mounting type air/ oil cooled Auto Transformer Starter with tapings at 50%, 65%, 80%, housed in robust steel chamber with arc and main contacts confirming to IS 8544 Part IV and as amended therafter for operation in AC three Phase 50 Hz (+/- 5%), 415V (+/- 10%) with the following components, under voltage release with no volt coil, over load relay with dash pot arrangements, single phasing preventor, LED ON/ OFF switches, Mounted Ammeter, Earth leakage relay, contactor assembly suitable for next standard KW rating, in coming and out going cable entry provisions, transformer tank including first filling of oil etc.

12.50 HP Panel board for Open well type submersiblepumpsets with standby (1+1) WD-M1917

Supply and delivery of 150 mm dia pressure gauge/ vaccum guage includimg all accessories as per specification ( for Suction and Delivery) to be mounted in teak wood board etc. complete (For Infilteration Well) Page 128 WD-M2030

Supply delivery of 3.5 / 3 core cable of following sizes as detailed below :

3.50 Core Armoured Aluminium conductor UG cable

10 sqmm from EB Pole to Meter board & up to Bus bar WD-M1960

3 Core Armoured Aluminium conductor UG cable

10 sqmm from Panel Board to OW type Sub Pumpset at HW sump (2*15)WD-M1960

Laying of following sizes as detailed below : 3.5 Core Armoured Aluminium / 3 Core Copper conductor cable

10 sqmm from EB Pole to Meter board & up to Bus bar WD-M2016

10 sqmm from EB Pole to Meter board & up to Bus bar WD-M2016

Jointing of following sizes as detailed below :

3.5 Core Armoured Aluminium conductor UG cable

10 sqmm from EB Pole to Meter board & up to Bus bar WD-M1986

Jointing of following sizes as detailed below : 3 Core

10 sqmm from Panel Board to OW type Sub Pumpset at HW sump WD-M1986

Supply and fixing of 63A Three phase 500V 4 Pole Change over Switch on suitable angle iron frame work with MS cable entry boxes with earth connection only SD 647

Twin Earthing for pump room as per I E Rules including cost of all materials for 50 HP (25 to 60 HP) WD-M2035

OHT inlet connections to 1.00LL & 1.50LL OHTs (12.0m St Ht) with 100mm Size inlet at TP Office Campus & Samundy St

OHT inlet connections to 0.60LL OHTs ( 7.50m St Ht ) with 80mm Size inlet (At Anna St & RCS St)

GST Amount for providing service to Government contract works for the above construction works. { GST amount is the Total GST amount for total overall quoted amount above this row in column "BB" for all works in this package}

SRI SELA VENTURES LLP (BID ID -1345286)