Nagapattinam Municipality - AMRUT 2.O WS Improvement works

Amount

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site including construction of mud pit.

Drilling of 140/150 mm bore.

upto 60 m.. Depth ending below Ground level.

Reaming from 140/150 mm dia bore to 300 mm dia bore as directed by the department officers.

upto 60 m.. Depth ending below Ground level.

Labour Charges for inserting PVC Casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC Couplers with Cement paste etc., complete, supply and packing the annular space with pebbles of size and quality as approved by the Department officers.

Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and fuel charges for compressor as directed by Department officers. and conducting yield test by 'V' notch method.

Supply and Delivery of unplasticised for plain PVC Casing pipes for the following dia in 3m length with screwed and Socket ends and centering guides for every 15m length of pipes as per IS 12818/1992 and as amended from time to time to suit

Supply and delivery of 150 mm Nominal dia ( 6") Deep borewell Ribbed screen PVC Casing pipe (RDS) with suitable 1.0mm horizandal slot with having open areas 12 % minimum with wall thckness 13mm to 14.30 mm at site of work.

Supply and delivery of Bore cap using M.S. Flat of size 1 cm x 3 mm and M.S. sheet on top with bolting arrangements for securing the cap in position (Bore caps with M.S. Couplings need not be made)

Supply and delivery of M.S. pipes- spiral/longitudinal welding as per IS 3589/2001 with external coating made with FE410

406.4mm Dia x 5mm thick

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers. Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.SS20B

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Supply and delivery of following sizes of DI K7 Class s/s pipes as per IS: 8329 / 2000, at the site of work etc., complete and as directed by Engineer in charge.

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the Department Officers.

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials).

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Cutting the DI pipes true to axis and finishing the ends complete.

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Supply , delivery and fixing of D.I. specials as per IS 9523/2000 at site etc., complete as directed by Engineer in charge.

400mm of DI Class K9- 18Km

Bends - 11.25 Degree

Bends - 22.50 Degree

Bends - 45.00 Degree

Bends - 90.00 Degree

150mm of DI Class K7- 580m

Bends - 90.00 Degree

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Supply, delivery to site, fixing & Commisioning of CI sluice valve to pressure rating PN1.0 with ISI mark with 5 Years warranty, for isolation confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes.

400mm CI Sluice valve - 18km

150mm CI Sluice valve - 580m

Supply, delivery to site, fixing & Commisioning of CI Scour valve to pressure rating PN1.0 with ISI mark with 5 Years warranty, for isolation confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes.

400mm CI Sluice valve - 18km

150mm CI Sluice valve - 580m

Supply delivery to site, fixing & Commisioning of sluice valve PN 1.6 rating with Double orifice Air valves as per IS 14846/2000 specifications including loading and unloading at site, transporting charges taxes and duties etc., as directed by the engineers of the following sizes.

80mm Double Air Valve - 18km

50mm Double Air Valve - 580m

1.65m x 1.65m - 18.58 km

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification etc complete and as directed by Engineer in charge

400mm of DI Class K9- 18Km

150mm of DI Class K7- 580m

Disposal of surplus earth including loading, conveyance within a distance of 5 km and spreading as directed by the Engineer in charge.

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge.

B.T Road - 18km

B.T Road - 580m

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge.

C.C Road-580m

Earth work excavation and depositing on bank with an initial lead of 10m and initial lift of 2m for foundation including shoring, strutting wherever necessary including hand bailing out water and all other incidental charges. etc. complete as directed by TWAD Board Officers as detailed below.Hard stiff clay,stiff black cotton soil, hard red earth, shales, murams, gravel, stoney earth, and earth mixed with 50% fair size boulders and hard gravelly soil -SS20B

First Depth of 2m

Second Depth of 1m

Third Depth of 1m

Supply and filling the foundatiion and basement with clear river sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by T Officers.

Raft Footing

Plain cement concrete with P.C.C 1:4:8 (one cement, four sand and eigth course aggregate) using 40 mm H.B.G stone for levelling course including cost of mixing cement, placing, ramming and curing etc., complete as directed by the Department Officers.

Raft Footing

R.C.C 1:1.5:3 (one cement, one and half sand and three course aggregate) using 20 mm size H.B.G stone (machine crushed) including mixing concrete using machanical mixer machine, and vibrating with machanical vibrator, but excluding cost of steel reinforcement, fabrication and placing the grills in postion and the cost of centering and strutting but including curing, finishing etc., complete as directed by the Department Officers.

Below ground level

Above ground level

Supplying, fabricating and placing in position of RTS rods at all heights for reinforcement including the cost of steel and binding wire, labour charges etc., complete for all RCC works and as directed by Department Officers.

Centering for sides and soffits of R.C.C slab for plane surface / curved surface including strutting upto required height using MS sheets of size 90cmx60cm and BG 10 gauge, stiffend with welded MS angle of size 25mmx25mmx3mm laid over silver oak (country wood) joists of size 10cmx6.5cm (space at about 90cm c/c) and supported by casurina props of 10cm to 13cm dia spaced at 75cm c/c complying with standard specification etc., complete as directed by the Departtment Officers. for the following items

Below GL

Curved

Above GL

Plane

Curved

Curved

Manufacture, Supply of Structural steel / I - Sections including cost and conveyance to site and labour charges including cutting, bending, binding, fabrication of Plate Girder beams to support Pumps & Motors, Gantry Girder Beams

Refilling the outside of the sump with excavated earth(other then sand) complying with standard specification for filling the foundation including watering consolidation etc., complete as directed by the Department Officers.

Supplying and erecting pull and push type rolling shutter with ISI make of approved size and section using 18 GI sheet. The shutter shall be painted with one coat of red oxide primer and the rate is inclusive of hood covers, transportation charges etc.,

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering and baling out water and cleaning and levelling the site etc.,complete 10 cum

Refilling with excavated soil (other than sand) complying with the standard specification for filling in foundation and basement

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and Eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete.Concrete of M30 grade using 20mm HBG

Suppling and fabricating and placing in position MS (or) R.T.S. bar for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors.

Centering for soffits of RCC slabs of plane surface like lintels, beams ,etc.,including strutting 3m high using mild steel sheets of size 90cm X 60cm X and B.G 10 stiffened with M.S angles of size 25mm X 25mm X 3mm laid over silver Oak (C.W) joists of size 10cm X 6.5cm (spaced at about 90cm c/c )and supported dy casurina props of 10cm to 13cm dia (spaced of 75cm C/C) complying with standard specification and directed

Column

Footing

Plinth Beam

Roof Beam

Roof Slab

Brick work in CM 1:5 (one cement & Five Crushed Stone Sand (M- Sand)) using II class ground moulded bricks of size 9" X 43/8"X 2 3/4" including finishing, curing, etc., complete complying with standard specification - 100CFT

Plastering with cement mortar 1:5 (One part of Cement and Five part of Plastering Sand (P- Sand)) 12mm, thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications

White washing two coats with freshly burnt shell lime white in colour in all floors including cost of lime and other materials brushes scaffolding charges etc.complete complying with standard specification and as directed. -100sq.m S.I.333

Painting two coats of newly plastered wall surface with ready mixed Cement paint of first quality and of approved colour over a priming coat including preparing the surface, clean removal of dirt and including necessary plaster of paris putty wherever required etc., complete complying with standard specification.

Cement Concrete Flooring in PCC 1:4:8 finished with a floating coat of neat cement mortar 1:4, 20mm thick.

Supply and Delivery Fabrication of MS doors and windows with outer frame and shutter frame in MS angle of size 40mm x 40mm x 6 mm with MS flat 25mm x 25mm x 6mm and MS sheet of 18 gauge including ventilating arrangements using 20mm square MS rods with locking arrangements including two coats of approved enamel paint over coat of red oxide including cost of angles, plates, sheets, fabrication charges, cost of hold fast and transportation charges etc., complete.

Doors - Fully Panelled Double Leaf

Windows - Fully Panelled Double Leaf

2T capacity hand operated over head Travelling (HOT) crane suitable for a span upto 6 Mtrs, and travel length upto 10 Mtrs. with clear lift upto 6 Mtrs. including gear type chain pulley block with GI chain and geared Travelling trolley complete with all accessories including girder.

Wiring with 2 x 1.5 sq.mm. (22 / 0.3) PVC insulated SC unsheathed copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with PVC accessoires in flush with wall with 3mm thick hylum sheet cover with TW switch box and 5A FT switch and making good of the concealed portion with suitable colour for PVC concealed light (6 points per coil) (for rooms like bath, toilet & pumproom, etc.)

Wiring with 2 x 1.5 sq.mm. (22 / 0.3) PVC insulated SC unsheathed copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with PVC accessories in flush with wall with 150mm x 100mm x 113mm TW switch box with 3mm thick hylem sheet cover for 5A 3 pin non inter locking wall socket with 5A flush type switch with continuous earth wire connection of 14 SWG TC wire and making good of the concealed portion with suitable colour for concealed PVC plug point )

Supply and fixing of 1200mm (48") AC ceiling fan complete with stepped electronic 300W regulator with 1 metre down rod on the existing clamp

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 Copper leads from terminals to the fitting

Supply and fixing of WT bulk head fitting with guard suitable for 11W CFL lamp with CFL

Supply and fixing of 375mm (15") sweep (light duty) AC exhaust fan complete with necessary wall opening and making of the wall

Supply and delivery of Horizontal split casing entrifugal pump conforming to IS 1520 and as mended thereafter with CI casing and split glands, stainless steel shaft, hydraulically and dynamically balanced bronze impellers capable of discharging equired quantity of water against a total head noted below due to all causes and with the accessories such as G.M air release cock, Grease cup, G.I priming funnel, M.S lifting hook, drip water G.I pipe connections, leading to the outside of pump house rubber water deflector, double flap foot valve, G.M strainer including unique tyre type coupling, common M.S fabricated base to mount pump and motor and other standard fittings etc complete. Pump shall be capable of discharging the specified quantity at the head noted at the minimum NPSH at site conditions. The shut off head shall be atleast 25% over and above the head at duty point. The pump shall be suitable for operation in AC three phase, 415 V, 50 Hz, 1500 RPM.

Pump 10000 LPM against 35 m Head (1W+1S)

Pump 7000 LPM against 25 m Head (1W+1S)

Pump 4000 LPM against 30 m Head (1W+1S)

Pump 7000 LPM against 30 m Head (1W+1S)

Pump 5000 LPM against 25 m Head (1W+1S)

Labour Charges for erection of Horizontal shaft, centrifugal pumpset (Coupled/Monoblock) in bore well/Open well including fixing of suction pipe and foot valve upto a maximum depth of 7 metres and delivery pipes to the required length with valves, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPIC switches starter, Voltmetre, Ammetre, Capacitor single phasing preventor and laying and jointing the cables and twin earthing as per IE rules including providing bed blocks etc., complete and operating the pumps and trial run for 10 days including signing of completion of reports as required by EB authorities.

Supplying Ductile Iron D/F pipes coforming to IS 8329:2000 with latest amendments and conveying to work site, rolling and laying true to line, level and perfect linking at joints, testing and commissioning, including loading and unloading at both destinations and cuts of pipes wherever necessary including jointing of DI pipes & specials excluding cost of specials and required to fixing of various valves, bulk flow metre on the line , jointing with flanged end to ends with rubber gaskets. jacking and fixing in perfect conditions and giving necessary hydraulic test to the required pressure as per ISS with all lead and lift including cost of jointing materials. (contractor will make his own arrangements for procuring water for testing)

350mm dia DI PN10 D/F Pipe

1m length of pipe

3m length of pipe

4m length of pipe

200mm dia DI PN10 D/F Pipe

1m length of pipe

3m length of pipe

4m length of pipe

Ductile iron pipes and fittings as noted below. DI pipes shall conform to class as per IS: 8329/2000 and pipe specials shall conform to IS: 9523/2000. All pipes and fittings shall be flanged and inter connected to the 600mm dia. pumping main.

200mm 90 degree D/F Bends PN16

200mm 90 degree D/F Duck foot bends PN16

350 x 200mm DI D/F Tee PN16

350mm dia. Flanged End cap

Supplying & fixing of DI Resilient seated soft sealing sluice valve with body, bonnet of ductile Iron of grade GGG50, Wedge fully rubber lined with EPDM & seals of NBR and the valves should be vacuum tight and 100% leak proof with face dimensions as per BS 5163 -89/ IS 14846 -20001 DIN 3202 F4/ F5. The stem sealing should be with toroidal sealing rings (Minimum 2 "O"-rings). All the valves should be with Electro static power coating both inside and outside with pocket less body passage. The rate is inclusive of cost of valve, T.P.Set, bolts & nuts and rubber insertions, excluding earth work and including of duties, taxes, tranporting charges etc., complete.

200mm DI D/F sluice valve

Supply, delivery and erection of DI D/F stanted seat swing Check Valve. Body of ductile cast iron GGG40/45/50 or equivalent grade and disc of ductile cast iron GGG 40/45/50 with fully encapsulated EPDM rubber, where both faces can be used. Electrostatic epoxy powder / liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy powder should be approved by W270. (EP-P) it is a resi-coat powder approved for drinking water application. applied through fusion bonding process by dipping the shot blasted casted componebts heated up to 200 deg C. Face to face dimensions as per EN558-1, series 48 and flange connections as per EN 1092-2/IS1538.

300mm DI D/F Non return valve

Jointing following size DI D/F pipes and specials with rubber insertion or any equivalent to the required specifications with M.S bolts and nuts. Complete including charges for special tools and plants such as air compressor and helmets and sheet piles etc.,

200mm dia.

350mm dia.

Supply, installation, testing and commissioning of Bourden type, stainless steel dial type pressure gauge with isolation valve and pipe having calibration of 0-16 kg/cm2. including necessary tools and plants complete as directed by site Engineer. (TWAD SOR 2022-2023, Pg 123)

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers. Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.SS20B

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Supply and filling the foundatiion and basement with Sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by Engineer in charge.

Supply & delivery of following sizes of DI pipe-K7 confirming to IS8329/2000

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Loweing DI pipe-K7 and specials to trench and laying to proper grade and alignment and as directed by the Department Officers

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Jointing DI pipe-K7 and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Department Officers.

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Supply , delivery and fixing of HDPE Pipe specials as per IS 8360/1977/Part I at site etc., complete as directed by Engineer in charge.

Equal tee

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Cutting the DI pipes true to axis and finishing the ends complete.

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification etc complete and as directed by Engineer in charge (TWAD SOR 2022-2023, Pg 295)

350mm Dia DI pipe-K7

300mm Dia DI pipe-K7

250mm Dia DI pipe-K7

200mm Dia DI pipe-K7

150mm Dia DI pipe-K7

Supply, delivery to site, fixing & Commisioning of CI sluice valve to pressure rating PN1.6 with ISI mark, for isolation confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes.

350mm Dia CI Sluice Valve

300mm Dia CI Sluice Valve

250mm Dia CI Sluice Valve

200mm Dia CI Sluice Valve

150mm Dia CI Sluice Valve

Supply delivery to site, fixing & Commisioning of sluice valve PN 1.6 rating with Double orifice Air valves as per IS 14846/2000 specifications including loading and unloading at site, transporting charges taxes and duties etc., as directed by the engineers of the following sizes.

50 Double Air Value

80 Double Air Value

Disposal of surplus earth including loading, conveyance within a distance of 2 km and spreading as directed by the Engineer in charge.

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge.

B.T Road

C.C Road

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers. Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.SS20B

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Supply and filling the foundation and basement with sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by Engineer in charge.

Supply & delivery of following sizes of HDPE PIPES and DI PIPES confirming to IS 4984/2016

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the Department Officers

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Department Officers.

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Cutting the DI pipes true to axis and finishing the ends complete.

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Lowering in trenches, laying, aligning in proper grade etc., complete and as directed by Department officers.

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Jointing DI S&S pipe with rubber gaskets as per IS: 5382 - 1985 including cost of rubber gaskets and hydraulically testing to required pressure etc., complete and as directed by Engineer in charge.

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Supply , delivery and fixing of HDPE Pipe specials as per IS 8360/1977/Part I at site etc., complete as directed by Engineer in charge.

CROSS

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

BENDS

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

END CAPS

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Department officers.

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification etc complete and as directed by Engineer in charge.

315 mm dia HDPE PN 6

250 mm dia HDPE PN 6

200 mm dia HDPE PN 6

160 mm dia HDPE PN 6

140 mm dia HDPE PN 6

110 mm dia HDPE PN 6

400mm dia DI pipe - K7

350mm dia DI pipe - K7

Disposal of surplus earth including loading, conveyance within a distance of 2 km and spreading as directed by the Engineer in charge.

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge.

B.T Road

C.C Road

Labour for cutting open road for laying water mains or sewer.B.T. Roads (or) Maccadam road

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches for laying of pipes for water supply and sewerage works in the following type of soils 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 SS20B as directed by Departmental officers

HSC Connection in HDPE Mains for Water Supply Scheme , delivery of the following Electrofusion tapping saddle PE 80 blue, PN 12.5 with female threaded metal insert of SS 304 as per standards BS EN 12201 tested as per BS 6920 for drinking water in WRCNSF ltd, UK. (Non Wrap with top loading type). Sizes:63mm to 315mm dia distribution HDPE pipes. shall as detailed in a drawing furnished.

Supply, delivery of Brass Ferrule as per IS 319 grade of sizes 15mm, 20mm and 25mm size and threaded as per IS :554 BSPT, ISO:7- 1 to suit the corresponding bore sizes of 15mm dia size ( 1/2", ) in the saddle Connection as per IS :554 BSPT, ISO:7-1

Supply, delivery of Poly propylene 90 Degree Compression elbow with compression joint at both ends as per standards ISO 14236 and Tested as per BS 6920 in WRC-NSF LTD, UK suitable for 20mm OD MDPE pipes

Supply, delivery of Poly propylene 90 Degree Compression elbow with compression joint at both ends as per standards ISO 14236 and Tested as per BS 6920 in WRC-NSF LTD, UK suitable for 20mm OD MDPE pipes

Supply, delivery Poly Propylene compression Female Threaded Adaptor with metal insert of SS 304 as per standards ISO 14236 and Tested as per BS 6920 in WRC-NSF LTD, UK for connecting 20mm, 20mm and 25mm outlet points of Brass ferrule of sizes 15mm respectively.

Supply, delivery of MDPE PE 80 Blue pipe as per standards ISO 4427 and Tested as per BS 6920 in WRC-NSF LTD, UK

U PVC ball valve with one side compression end and other side female end as per ISO 4422-4 and Tested as per BS 6920 in WRCNSF LTD, UK,size : 20mm ODx1/2"ID, 25mm ODX1/2"ID and 32mm OD X 3/4" ID

Supply and delivery of protection box of size 20cm x 30cm for fixing of Water metre. The box should be rectangular base in construction and material of construction should be weather resistant polyethylene (PE) blue /black .Reinforcement rips should be provided at the walls of the box. Box should be at two components comprising body and lid. Lid should be press fitted to the body. No hinges should be used for opened /closed. Operation metre box should be provided with built in lock. The body as inlet and outlet windows to pass the pipe through suitable for use with pipes of sizes up to 1" .Base of the box should be designed in such a way .That the box can be installed to the floor/wall using anchor Bolts / screws without grouting the entire base of the metre Box .Provision for fixing Name plate showing the name of the Department etc., complete and as directed by the Department Official

Supply and delivery of multi jet water metre with removal mechanism water merers confirming to ISO 4064 Class B or IS 779 standards with type test certificates for Routine Test, IP 68 Test certificates issued by FCRI/NABL Accredited Lab. The water metre shall have magnetic or mechanical drivers or shall ber versatile for installation in horizontal position. The metres shall be hydrodynamically or hydrostatically balanced. The runner, runner chamber, pointers of the metre shall be as per ISO 4064 Class B Specification. Dry dial excavated counter housing fully protected against floodings ensuring easy reading in all climatic conditions. The metres shall be inferntial, Dry-Dial Type, Class B with Straight reading Cyclometre with inbuild filter basket, metre body shall be of Brass body confirming to DCB2 material specification and suitable for drinking water applications

Lowering MDPE pipes and specials to the trench and laying to proper grade and alignment, jointing with couplers with cement past etc complete for the pipes size upto 40mm dia OD MDPE Pipes

Jointing MDPE Pipes and Specials by butt fusion weldiEng / electro fusion welding joints using fusion equipment as per ISO 21307- 2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per HDPErected by Department Officers.

Supply, delivery and fixing of GI pipes for encasing in open drain including handling charges. etc complete as per standard specifications and as HDPE rected by the Department Officers

Refilling with excavated soil (other than sand complying with the standard specification for filling in foundation and basement (total earth work quantity - volume of the pipe)

Earth work excavation for foundation (for narrow excavation) in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10 mts and initial lift of 2 mts. and clearing and levelling the site, etc., complete complying with standard specification.In hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravel, stoneyearth and earth mixed with small sized boulders

Outer & Inner Column

G.L. brace

SDR - (Not Requiring Blasting) Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in Soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting

Cement Concrete 1:4:8 (One Cement, Four crushed stone sand and eight hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick, well rammed, consolidated and curing etc. complete complying with standard specification

Providing and laying in position, Standardised Concrete Mix M-30 Grade in accordance with IS:456-2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cementcontent of 400 kg/m3 and maximum water cement ratio of 0.45, including admixture (plasticiser / superplasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete,

Beyond 1.5 m below GL

Upto 1.5 m below G.L.

Upto 4.50 m ht. Above G.L.

From 4.50 m to 7.32 m ht. From G.L.

From 7.32 m to 10.98 m ht. From G.L.

From 10.98 m to 14.64 m ht. From G.L.

Outer column 14.64-15.35 m

From 18.3 m to 21.96m

Painting two coats with approved cement paint over cement plastered exposed surface of the reservoir including cleaning, preparing the surface and curing etc. complete and as directed by the Department Officers.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid)

Square Column

Column 0 to 3.3m ht above GL and below GL

Column above 3.3m to 4.3m ht from GL

column above 4.3 m to 5.3m ht from GL

column above 5.3 m to 6.3m ht from GL

column above 6.3 m to 7.3m ht from GL

Column above 7.3m to 8.3m ht from GL

column above 8.3 m to 9.3m ht from GL

column above 9.3 m to 10.3m ht from GL

column above 10.3 m to 11.3m ht from GL

column above 11.3 m to 12.3m ht from GL

column above 12.3 m to 13.3m ht from GL

column above 13.3 m to 14.3m ht from GL

column above 14.3 m to 15.3m ht from GL

column above 15.3 m to 16.3m ht from GL

Plain surface

Below GL upto 3.3m above GL

Column footing

Central column

Peripheral column

Circumferantial brace bottom and sides

cross braces

0 m to 3.3m ht from floor level

roof slab bottom

Deduct for column head

Deduct for side wall top

3.3 m to 4.3m ht from GL

Brace -I set

Circumferantial brace bottom and sides

cross braces

7.3 m to 8.3m ht from GL

Brace -II set

Circumferantial brace bottom and sides

cross braces

11.3 m to 12.3m ht from GL

Brace -III set

Circumferantial brace bottom and sides

cross braces

15.3 m to 16.3 m from GL

Floor slab bottom

Drop sides

deduct for junction of column with floor slab

deduct for column head

circular Column

Column 0 to 3.3m ht above GL and below GL

central column

column inside the tank

column head sides

Deduct for column brace

Column 3.3 to 4.3m ht above GL

central column

Deduct for column brace

Column 4.3 to 5.3m ht above GL

central column

Column 5.3 to 6.3m ht above GL

central column

Column 6.3 to 7.3m ht above GL

central column

Column 7.3 to 8.3m ht above GL

central column

Deduct for column brace

Column 8.3 to 9.3m ht above GL

central column

Column 9.3 to 10.3m ht above GL

central column

Column 10.3 to 11.3m ht above GL

central column

Column 11.3 to 12.3m ht above GL

central column

Deduct for column brace

Column 12.3 to 13.3m ht above GL

central column

Column 13.3 to 14.3m ht above GL

central column

Column 14.3 to 15.3m ht above GL

central column

Column 15.3 to 16.3m ht above GL -Curved surface

Column head

Floor ring beam Outer sides

Floor ring beam inner sides

Curved surface

From 0 to 3.3m from floor level

Floor slab sides

Sidewalls outer

Sidewalls inner

Roof slab sides

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Supplying and painting the walls with two coats of cement paint over one coat of cement primer as instructed by the departmental officers including preparation of surface curing, etc., complete in all floors complying with standard specifications (The colour and shade of the cement paint shall be got approved by the Executive Engineer before use of work).

Supplying and fixing of cutstones size 0.45x 0.45x0.15m in CM 1:3 below the inlet pipe

Providing RCC inside ladder as per approved design

Providing RCC spiral staircase as per approved design

Providing RCC hand rail of 1.2 m height around the top of the roof slab

Supply, delivery and fixing in position of RCC manhole of size 0.60 m x 0.60 m including locking arrangement, cost of materials etc. complete and as directed by the Depart. officers.

Providing ventilating arrangements over roof slab and roof dome of S.R.

Supply, delivery and fixing in position of water level indicator with float of approved pattern for inner and outer compartments including cost of materials etc. and as directed by the Dept officers.

Refilling the sides of the foundation with excavated soil (data 2021-2022)

Supply, delivery and fixing of pipes for OHT connections including civil works 100mm CI PIPE for inlet, outlet, overflow and 100mm CI pipe

Inlet

OUTLET

Scour

Overflow

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board on the Service Reservoirs including cost of all consumables, one coat of base paint, scaffolding charges including painting NRDWP Logo on the Service Reservoirs.

Provision for conducting SBC

Provision for light jungles

Provision for change in classification of soils

Earthwork excavation and depositing on bank for foundation, with an initial lead of 10m and initial lift of 2m including shoring, strutting and all other incidental works, as directed by the departmental Officers in the following classification of soil. Hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small sized boulders.

Single under reamed pile 400mm dia Boring, providing and installing cost-in-situ single under reamed piles of specified dia metre and length below pile cap in CC pile with mix 1:1.5:3 to carry a safe working load not less then specified excluding the cost of steel reinforcement but including the bentonite solution, machinary and labour charges etc..,all complete

Plain Cement Concrete 1: 4 : 8 (One cement, Four Sand and eight hard granite broken stone of 40 mm size ISS gauge) for levelling course of fountation includingmixing,placing,ramming,finishing and curing etc., complete in accordance with specification and as directed by the Department Officers

RCC M30 design mix concrete (Approximately for one cum of concrete 400 kg of cment, 0.47 cum of sand with bulkage and wastage, 0.57 cum of HBG ston of 20 mm size ,0.28 cum of HBG stone of 10 mm size are to be used ) for the following members (excluding the cost of RTS grills for reinforcement, centering and shuttering, strutting,) but including cost of mixing, laying of concrete, vibrating with mechanical vibrators, ramming consolidating finishing, curing etc., complete complying with relevent standard specification and as directed by Department Officers.

Upto 1.5m below GL

upto 4.5m above GL

4.5m to 7.32m above GL

7.32m to 10.98m above GL

10.98m to 14.64m above GL

14.64m to 18.3 m above GL

18.3 to 21.96 m above GL

Centering for soffits of RCC members or plane surface including shuttering, strutting to the centering and providing supports etc. complete for the following members using MS sheets of size 90x60cm and 'BG' 10 gauge stiffened with welded M.S. angles of size 25x25x3mm laid over silver oak (country wood) joists of size 10 x 6.5 cm spaced at about 90cm C/C and casurina props of 10 to 13 cm dia (spaced at 75cm C/C) for various heights and as directed by the TWAD Board Officers.

Plain surface

Upto 3.30 M Below GL

Pile cap

Square column

Circular column

Upto 3.30 M above GL

Plane surface

Square column

Circular column

3.30 - 4.30M above GL

Square column

Circular column

Plain surface

4.30 - 5.30M above GL

Square column

Circular column

5.30 - 6.30M above GL

Square column

Circular column

6.30 - 7.30M above GL

Square column

Circular column

Plain surface

7.30 - 8.30M above GL

Square column

Circular column

8.30 - 9.30M above GL

Square column

Circular column

9.30 - 10.30M above GL

Square column

Circular column

10.30 - 11.30M above GL

Square column

Circular column

Plain surface

11.30 - 12.30M above GL

Square column

Circular column

12.30 - 13.30M above GL

Square column

Circular column

13.30 - 14.30M above GL

Square column

Circular column

14.30 - 15.3 M above GL

Square column

Circular column

Curved surface

15.3 - 16.3 M above GL

Curved surface

Plane surface

Inside the tank

From 0m to 3.3 m from floor slab

Curved Surface

Circular column

From3.3m to 4.3 m from floor slab

Curved Surface

Plane surface

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc.The steel should conform to the relevant ISspecification and supplied with test certificate (Fe.415 grade as per IS specification No.1786/1985 and as amended from time to time) for delivery at site of work including loading, freight, unloading, stocking, transit insurance charges, taxes etc. complete.

Painting two coats with approved cement paint over cement plastered exposed surface of the reservoir including cleaning, preparing the surface and curing etc. complete and as directed by the Department Officers.

Providing and fixing RCC inside access ladder of approved pattern and design in RCC 1:1.5:3 design mix of ISS gauge 0.40m width, 0.10m thickness, 0.12m breadth for side post, 0.05m thickness 0.12m breadth for steps with suitable inclination including cost of cement, reinforcement centering, finishing, curing etc., complete and as directed by Department Officers.

Supply and fixing of M30 design mix RCC hand rails of 0.9 m height over the top of the roof slab of approved pattern and design including the cost of cement, reinforcement, centering, precasting, finishing, curing cement painting the surfaces etc., complete and as directed by the Department Officers.

Supplying and fixing in position of cut stone of size 0.45m x 0.45m x 0.15m set in CM 1:3(One part cement and three part sand) at bottom of inlet pipe inside the Sump the suitable size and as directed by the Department Officers.

a) Construction of RCC Spiral stair case in RCC M30 design mix concrete of 1.80m dia of required height for approach to the roof of Service Reservoir with RCC hand rails as per type design No.Sanitary Engineer/PH(M) NO.18/64 - 65 Sanitary Engineer(PH) 3/64 including necessary earth work excavation in various classification of soils met with at the site of work for providing foundation concrete in CC 1:4:8 mix, RCC footing M30 mix, GL platform etc., including cost of steel reinforcement, fabrication charges, scaffolding, centering precasting charges, cement painting the surfaces etc.,complete and as directed by the TWAD Board Officers. The staircase shall be braced to the column of Service Reservoir at suitable interval

Supply,delivery and fixing in position of CI Manhole frame with cover of size 0.60m x 0.60 (heavy duty) etc.complete and as directed by Department Officers.

Supply and fixing in position ventilator of reinforcement cement concrete RCC M30 design mix 50 CM wide/diametre of approved pattern and design including cost of cement, reinforcement centering, shuttering, strutting, curing and fixing in position on the roof slab with mosquito proof net arrangement etc., complete. and as directed by the Department Officers.

Providing pipe connection by lifting pipes and specials in vertical direction and placing the same for required alignment including lifting the pipes and specials in various heights of inlet, outlet, overflow and scour including earthwork excavation conveying the pipe and specials into the trenches, laying to proper grade and alignment cutting, threading and jointing with jointing materials with required specification including labour charges and supply of valves pipes, specials MS Clamps to fix the pipes with the columns including all taxes duties and connected charges etc. complete and taxes duties and connected charges etc. complete and as directed by Engineer in charge.

Inlet

OUTLET

Scour

Overflow

Labour charges for painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board on the Service Reservoirs including cost of all consumables etc., complete and as directed by Department Officers.

Supply, delivery and fixing in position of enamel coated "water level indicator" with all accessories of approved pattern and design, in the outer surface of the side wall of Sump to read the water level of the required height and as directed by Department Officers.

Earth work excavation and depositing on bank with an initial lead of 10m and initial lift of 2m for foundation including shoring, strutting wherever necessary including hand bailing out water and all other incidental charges. etc. complete as directed by TWAD Board Officers as detailed below. Hard stiff clay,stiff black cotton soil, hard red earth, shales, murams, gravel, stoney earth, and earth mixed with 50% fair size boulders and hard gravelly soil -SS20B

Pile Cap

Second Depth of above 2m

Supply and filling the foundatiion and basement with clear river sand in layers complying with standard specification including consolidation and watering etc. complete and as directed by Department Officers.

Plain cement concrete with P.C.C 1:4:8 (one cement, four sand and eigth course aggregate) using 20 mm H.B.G stone for levelling course including cost of mixing cement, placing, ramming and curing etc., complete as directed by the Department Officers.

RCC M30 design mix concrete (Approximately for one cum of concrete 400 kg of cment, 0.47 cum of sand with bulkage and wastage, 0.57 cum of HBG ston of 20 mm size ,0.28 cum of HBG stone of 10 mm size are to be used ) for the following members (excluding the cost of RTS grills for reinforcement, centering and shuttering, strutting,) but including cost of mixing, laying of concrete, vibrating with mechanical vibrators, ramming consolidating finishing, curing etc., complete complying with relevent standard specification and as directed by Department Officers.

Below GL Column

Ground Level Braces

Above GL 0 - 4.5m Height

Braces @3.4m from GL

4.5 - 7.32m Height

7.32 - 10.98m Height

Braces @ 7.60mfrom GL

10.98 - 14.64m Height

Braces @ 11.40 m from GL

14.64 - 18.30m Height

Bottom level Beams @14.95m from GL

14.64 - 18.30m Height

18.30 - 21.96m Height

18.30 - 21.96m Height

Roof level Beams @20.30m from GL

Roof level Slab @20.60m from GL

Boring, providing and installing bored castin - Situ reinforcement cement concrete pile of specified diametre and length below the pile cap in cement concrete 1:1.5:3 (1 cement, 1.5 coarse sand, & 3 graded stone aggregate of 20 nominal size) to carry a safe working load not less than specified excluding the cost of steel reinforcement but including Bentonite solution mechinery & labour charges etc, all complete. (Length of pile for payment shall be measured from bottom of pile to the bottom of pile cap).

600mm Dia Piles

Supplying, fabricating and placing in position of RTS rods at all heights for reinforcement including the cost of steel and binding wire, labour charges etc., complete for all RCC works and as directed by Department Officers.

Centering for sides and soffits of R.C.C slab for plane surface / curved surface including strutting upto required height using MS sheets of size 90cmx60cm and BG 10 gauge, stiffend with welded MS angle of size 25mmx25mmx3mm laid over silver oak (country wood) joists of size 10cmx6.5cm (space at about 90cm c/c) and supported by casurina props of 10cm to 13cm dia spaced at 75cm c/c complying with standard specification etc., complete as directed by the Department Officers. for the following items

below G.L up to 1.5 m

Plane

Curved

Column

Above GL

Plane

Column

Plane

Column

Column

Plane

Column

Plane

Column

Plane

Column

Column

Plane

Column

Plane

Column

Plane

Column

Column

Plane

Column

Column

Plane

Curved

Column

Curved

Column

Plane

Curved

Column

Curved

Column

Plane

Curved

Column

Plane

Curved

Column

Supply and delivery of 600mm dia FRC manhole frame to have clear opening of 600mm dia to suit 600mm dia FRC Cover Heavy Extra duty to duty stores on as per IS 12592:2002 to its latest revision with reinforcement details for covers and frames.

Providing cut stone set in C.M 1:3 for inlet pipe.

Refilling the outside of the sump with excavated earth(other then sand) complying with standard specification for filling the foundation including watering consolidation etc., complete as directed by the Department Officers.

Painting two coats with approved cement paint over cement plastered exposed surface of the reservoir including cleaning, preparing the surface and curing etc. complete and as directed by the Department Officers.

a) Construction of RCC Spiral stair case in RCC M30 design mix concrete of 1.80m dia of required height for approach to the roof of Service Reservoir with RCC hand rails as per type design No.Sanitary Engineer/PH(M) NO.18/64 - 65 Sanitary Engineer(PH) 3/64 including necessary earth work excavation in various classification of soils met with at the site of work for providing foundation concrete in CC 1:4:8 mix, RCC footing M30 mix, GL platform etc., including cost of steel reinforcement, fabrication charges, scaffolding, centering precasting charges, cement painting the surfaces etc.,complete and as directed by the TWAD Board Officers. The staircase shall be braced to the column of Service Reservoir at suitable interval

Supply and fixing in position ventilator of reinforcement cement concrete RCC M20 design mix 50 CM wide/diametre of approved pattern and design including cost of cement, reinforcement centering, shuttering, strutting, curing and fixing in position on the roof slab with mosquito proof net arrangement etc., complete. and as directed by the Department Officers.

Providing RCC hand rail of 1.2 m height around the top of the roof slab

Providing RCC inside ladder as per approved design

Supply, delivery and fixing in position of enamel coated "water level indicator" with all accessories of approved pattern and design, in the outer surface of the side wall of Sump to read the water level of the required height and as directed by TWAD Board Officers.

Painting HRCE emblem on the outer surface of the side wall

Supply, delivery and fixing of pipes for OHT connections including civil works 100mm CI PIPE for inlet, outlet, overflow and 100mm CI pipe

Inlet

Outlet

Scour

Overflow

SI NO12.14.6 DI Pressure Reducing and Flow Limit Control Valve (PN10/16) with the function to reduce higher upstream pressure into a preset lower downstream pressure and to not allow flow rate in the line to exceed beyond the defined set point. The flow orifice diametre is designed based on the set point as per the design requirement. The set point can be changed to a maximum of +10%.“Manufacture supply and delivery of DI D/F Diaphragm type own medium controlled Pressure Reducing and flow limit control valve with cast body of ductile iron grade GGG-40 or equivalent grade or as per IS 3896-Part-2-1985 customized control cylinder for linear control behaviour or equivalent, performed diaphragm and pull out safe profile sealing ring of EPDM, threaded inserts (CORFIX - to prevent the coating from coming off in the connections area as well as corrosion and incrustations in the control circuit) or equivalent. 2 pressure gauges for operator-friendly control to determine the actual inlet and outlet pressure connected directly to the valve. Flange connection dimensions according to EN 1092, Part 2/ ISO 7005[DIN]/ IS 1538, all parts (Epoxy coating, and diaphragm) in contact with medium are as per KTW and DVGW certified (harmless)/WRAS & NSF approved. The EPDM rubber & Epoxy coating (EP-P) should be approved by W270.(EP-P)/ WRAS & NSF.”Pilot valve system having Stainless Steel / Brass fittings with spring of stainless steel 304 as per standard parts according to DIN EN 12 266-1 and Stainless steel 316 orifice plate shall be as per the set point of flow rate, all the external control tubing of SS 304 / Copper/ reinforced plastic rated PN16, Tightness to DIN EN 12 266-1, leakage rate A (or) equivalent and the needle valve/ speed control device should be provided to vary opening speed of the main diaphragm with self- cleaning filter to avoid possibility of dirt build up inside the control tubing.

Flow cum pressure control valves at inlet of OHT

Supply, delivery to site, fixing & Commisioning of CI sluice valve to pressure rating PN1.6 with ISI mark, for isolation confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes. for DMA

100mm sluice valve

150mm sluice valve

200mm sluice valve

300mm sluice valve

350mm sluice valve

Electromagnetic Flow metre shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube metre for 1.0 Mpa working pressure, manufactured to highest standard available for mag-metres, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic metre) 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: metre 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 metre tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. metre tube shall have a constant nominal inside diametre 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 metre. 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 metre test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

100mm dia

150mm dia

200 mm dia

300 mm dia

350 mm dia

Supply, delivery to site, fixing & Commisioning of CI sluice valve to pressure rating PN1.6 with ISI mark, for Scour confirming to IS 14846/2000 with necessary rubber insertions, bolts & nuts including loading & unloading ,transporting charges taxes & duties etc. complete at site as per standard specification and as directed by engineers of the following sizes.

100mm Scour valve

150mm Scour valve

200mm Scour valve

300mm Scour valve

350mm Scour valve

Valve pit of size -1.2mx0.9m

Valve pit of size -1.5m x 1.2m

Valve pit of size -2.0mx1.5m

Valve pit of size -2.55mx1.33m

Valve pit of size -2.75mx1.4m

Earth work excavation -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

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and Eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

PandC Projects Private Limited