Municipal Administration And Water Supply Department Tender

depth of 4 m to 6m and

depth of 6 m to 7m and

Earth Work Excavation for Pipe Laying Works for Water Supply And Sewerage Works 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

400mm HDPE P6 Pipe (other than loose soil)

Supply and filling the foundatioin and basement with Stone dust in layers of not more then 15cm thick well ramed leying with standard specification including consolidation and watering etc. complete and as directed by as directed by department Officers

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight 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

Brick work in CM 1:5 (One cement and six sand)using country bricks of size 8.75 "x4.25"2.00" including cost of all materials, labour charges, curing etc., complete as directed by directed by the department officers.

Providing and laying in position Standardised Concrete Mix M-20 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 cement contenet of 325Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone Sand (M- Sand), but excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers -

Below GL

for above GL UPTO 4.32M

Plastering with CM 1:4 (One cement and Three sand) 12mm thick including cost of materials, labour charges for finishing, curing etc., complete and as directed by the department officers

White washing two coats using fine screened shell lime for the new plastered surface for inner and outer side of the room including the cost of materials labour charges etc., complete and as directed by the department officers.

Painting two coats with ready mixed 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. - 10

Painting two coats with Ready Mixed Enamel Paint over the new iron works of approved quality and colour without priming coat including the cost all materials etc.,complete, in all floors.

Supply and fixing of M.S Grills with Doors and Windows with one coat of Red oxide with Primer including all costs such as welding,grinding and fabrication charges, cost and conveyance of all materials to site etc,complete as per standard specification.

Double leaf door (1m x 2.50m)

Window (1.20m x 0.90m)

Ventilator (0.45m x 0.60m)

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 cement contenet of 400Kg/ cum and maximum water cement ratio of 0.45 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone sand (M- Sand) but excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers - The Coarse and Fine aggregates to be used should comply with the requiremnents of IS standards.

Below GL UPTO 1.50M

Below GL UPTO 1.50M TO 4.50M

Below GL UPTO 4.50M TO 9.00M

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.

Supply and erection of steel centering, shuttering for soffits and sides including for all RCC works using MS sheets of suitable size of BG 10 stiffened with MS angle of size 25x25x25x3mm for boarding laid over Silver Oak joists of SIZE 10cmx 6.5cm spaced at 90cm c/c and supported by Casuarina Props 10cm - 13cm spaced at 75cm c/c etc., complete and as directed by Officers (REtrived Materials should be taken back by the contractor.

From 0m to 3.3m

From 3.3m to 4.3m

From4.3m to 5.3m

From 5.3m to 6.3m

From 5.3m to 6.3m

For Plain Surface

For individual footing side

For Square surface- below GL

For column upto GL

Square surface - above GL upto 3.30m

For column upto GL to Roof slab bottom Plinth beam, Basement beam, Roof beam and roof slab.

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 officers.

Pumping Main

Refilling the trenches with excavated soil after the pipes were laid, jointed and tested etc., complete complying with standard specification including watering and consolidation and as directed by the TWAD Board Officers.

400mm HDPE P6 Pipe (other than loose soil)

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

Supplying and fixing of encapsulated P.V.C steps inside the well.

Supplying and fixing of R.S.J Support as per I.S.M.B 450 & I.S.M.B.200 with necessary accessories including chequered plates and material and labours charges .

Supply and delivery of HDPE pipes for sewerage PE 100 PN 6 conforming to IS : 14333/1996 (amended in 2009)

400 mm/ PN.6/HDPE Pipe 'ISI'(PE 100 Grade)

Lowering of HDPE pipes and specials into the trench carefully,laying to proper grade and alignment , jointing as directed by TWAD Board officers

400 mm/ PN.6/HDPE Pipe 'ISI'(PE 100 Grade)

Supply and delivery of the following HDPE specials as per IS 8360/1977 Part I (Reafirmed 1992 ) and Part II and III (Reafirmed 2002)and as amended from time to time With ISI marking. The rates including cost, duties, taxes, loading, freight, unloading and stacking at site of work as directed by TWAD Board officers.

PN 6 400mm dia 90 Degree Bend

PN 6 400mm dia 90 Equal Tee

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 TWAD Board Officers.

Testing of pipes for water supply with hydraulictesting equipment by filling with water (including cost of water @ Rs. 60/KL) and testing to recommended pressure in convenient stretchesand attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc., complete for the following diametres of pipes.

Supply and Delivery of Tamper proof CI single chamber air release valves with pressure range from PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 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 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 Tamilnadu

Construction of Air Valuve chamber RCC Chamber of size 1.20m x 0.90m x 1.6m thickness of 150mm wall including, Earth work excavation and depositing on bank with initial lead of 10m and initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stony earth and earth mixed with small size of boulders, SDR, DMR & HR, Refilling the foundation using excavated earth including complete consolidation as directed by the Engineer, Conveyance of excess earth to a distance not exceeding 5 km including cost of loading, unloading and transportation charges etc complete as directed by the Engineer,Reinforced cement concrete M30 (400kg/cum of Minimum cement) for Baseslab, side walls and Cover slab using Sulphate Resistant cement and 20mm & 10 mm size hard blue granite stone (machine crushed) including cost of reinforcement, fabrication and placing the grills in position and including cost of centering and shuttering including curing, finishing and mixing concrete using mechanical mixer machine and compaction by machanical vibrator etc., complete and as directed by Engineers,Supplying, fabricating of FE500 & placing in position MS or deformed steel bars for RCC items of work, providing provision of HSC opening, including cost of steel, transporting, straightening, cutting, bending, cranking, binding etc, including cost of binding wire chairs, laps to fix the reinforcement in all positions, all labour & materials complete,Supplying and fixing position of chamber all labour charges etc complete as directed by Engineers

100 mm Double Air Valve on 400mm dia Pumping main

Construction of Thrust blocks - with RCC M20 Grade concrete Earthwork - excavation and depositing on bank with an initial lead of 10 m and initial lift of 2 m in trenches (Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil) including all charges etc complete., complying with standard specification as directed by Corporation Engineers 'P.C.C 1:2:4 (one cement, two sand and four coarse aggregate) using Sulphate Resistant cement and 20 mm H.B.G stone, RCC M 20 grade using cement and 20 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the Corporation Engineers. Refilling the trenches with suitable excavated earth available in layers of 150 mm thick, watering, ramming & consolidation complete as directed by the Corporation Engineer. Conveyance of excess earth to a distance not exceeding 5 km as directed by the Corporation Engineer including cost of loading, transportation and unloading charges etc

Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions as stated in the annexure. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction . Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps to have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 960 for high duty pumps and 960/1450 rpm for low duty pumpsets . Casing and impeller should be of CI Gr. FG 260 :IS210 more preferably with hardened impeller. Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3 ph , 415 V( + or – 10 % ) , 50 Hz ( + or - 5 % ) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously . The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances . The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120 % of rated speed for two minutes without any mechanical damage , in either direction of rotation. The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta / ATS starter, protection against increase in stator winding temperature (15 deg Celsius) , bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitable for continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with power cable of PVC insulated and PVC sheathed , copper , flexible ,round type with required conductor size and number of cores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated , PVC sheathed , flexible for stator winding temperature sensor 3 core x 1.5 sq.mm copper conductor and for bimetallic switches 2 core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10 mts of round submersible copper cable of suitable size.The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS) (P.127) Submersible centrifugal sewage Non clog Pumps -( 393.36cum/hr) 109 lpsx18m Head

Supply and delivery of 250mm DI D/F sluice valves (soft seated) resilient seated soft sealing sluice valves with body bonnet of ductile case 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 vaccum tight and 100%leak proof with face to face dimentions as per BS 5163-89 / ISI 14846-2000 / DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight through body passage. All the valves are to be compatiable for burried application with pressure rating PN 10/16.

Supply, delivery of 250mm DI D/F slanted seat Swing check valve. Body of ductile cast iron GGG 40 or equivalent grade and disc of ductile cast iron GGG 40 or equivalent grade 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 components heated upto 200deg. Face to face dimensions as per EN558-1, series 48 and flange connections as per EN 1092-2/IS 1538. including all taxes.

3 T capacity hand operated over head travelling crane suitable for a span upto 6 m , and travel length upto 10 m with clear lift upto 6 m including gear type chain pulley block and geared travelling trolley with all accessories including suitable vertical and Horizontal girder ISMB.

150mm dia Pressure Gauge and Vaccum guage including all accessories as perspecification (For Suction and Delivery to be mounted on wall on Teak Wood Board)

Supply and delivery of following 250mm, 400mm, 100mm CI pipes and spls. IS 7181/86 and IS 1538/1993. The rates are inclusive of Transportation charges.

Lowering of 250mm C.I. D/F Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Board Officers.

Jointing of 250mm, 400mm and 100mm CI D/F pipes and specials with rubber insertion to the required specification with MS Bolt and nuts complete (including cost of jointing materials).

250mm CI D/F Pipes and specials

400mm CI D/S Pipes

100mm CI D/F Pipes

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., complete.

Charges for clearing the suction well and laying the pipe line areas by deploying earth moving machineries.

Trenchless crossing in new NHAI RoadExcavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (bredth), upto 5m depth in all soil strata including shoring and strutting using 6mm tk MS plate of size 3.50m x 3.50m usable for 20 operations and providing 16mm thickness MS plate of size 3.00m x 3.50m with 100mm x 100mm x 12mm angles of 4m length for holding the MS plates for Thurst arrangements to receive the impacts during pushing operation of encasing pipe. Lowering the folloing size of MS encasing pipe by using Contractor;s crane and machineries and jointing MS pipes by welding, accross the National Highways/ State Highways / Railways / Canal crossing etc and driving the horizontal bore by pushing / jacking method (trechless technology method) using Contractor's machineries such as cranes, jacks, jacking materials, generator, welding machineries, compressor, jack hammer and other equipments etc., without interfering and causing any hindrance to the movement of traffic or any other vehicles, without any disturbances to the railway/road/canal formation etc., including bailing/pumping of water where ever necessary without affecting any installation like water supply pipeline/telephone cable, electric cables etc. passing nereby area and scooping the earth inside the pipes and pit and depositing the surplus earth in a convenient place and leveling the site after completion of entire work as directed by TWAD Engineers. (TWAD SOR 2022-23 P 326)

For 800mm dia MS encasing pipe for various thickness

Dia metre & thickness of pipe in mm , Bare pipe per metre, CMC external 20mm thick per metre

Labour charges for erection and commissioning of Submersible pump sets in infiltration well including fixing and jointing submersible cable with proper clamps up to the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges up to the exterior wall of pump room and erection of panel board consisting of TPICN switches, starters, voltmeter, Ammeter, three pilot ( indicating ) lamps, capacitor, single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc.,complete and testing the pump set and trail run for 10 days.

Supply, delivery and erection of M.V. Panel board. The M.V. Control panel shall be of floor mounting type, vermin and dust proof, modular type consisting of the following accessories and controls. The control panel shall be of enclosed type and built with compartmentalised modular type cubical. All cubicals shall be constructed from 14SWG, MS Sheet at the bottom and rear and 12 SWG MS sheet at front. The panel board shall have removable rear cover hinged front door fitted with knobs. The interior and exterior of the panels and compartment shall be treated with one coat of primer and two coats of stove enamelled light grey shades. The SB is to be supplied with 4 Nos. of aluminium bus-bars with ample carrying capacity, properly sleeved with colour mode including electrical items. (Seperate sheet enclosed)