Bengaluru Water Supply And Sewerage Board Tender

No.4 - Providing and fixing DI Resilient seated soft sealing SLUICE VALVE of various dia. with body bonnet of ductile iron (DI) conforming to IS- 1865 and of grade GGG 40/50, shaft of stainless steel, wedge fully rubber lined with EDPM seals of NBR and the valves should be vacum tight and 100% leak proof with face to face dimensions as per IS 14846-2000 only. The stem sealing should be with toroidal sealing rings (minimum 2 “ O “ rings). Body and bonut should be coated with Electrostatically applied Epoxy Powder Coating with minimum coating thickness of 250 micron both inside and outside. The rate is inclusive of cost of valves, T.P set, galvanized bolts & nuts and rubber insertions etc. but excluding earth work. (Note: TP set should be considered only for DI pipes estimate. For MS pipes estimates, TP sets cost of corresponding dia shall be deducted from the SR rates of valves and provision for corresponding dia MS flanges should be made in the estimate.) For PN-16: Sluice Valve of PN-16.0 & 150 mm

No.5 - Sluice Valve of PN-25 & 450mm

No.6 - Sluice Valve of PN-16.0 & 600 mm

No.7 - Supplying of DI Pressure Relief Valve PN 25 rating For 450mm dia

No.8 - Providing and fixing kinetic AIR VALVE PN 16.0 for automatic discharge of accumulate air during working condition, conforming to IS 14845 / EN 1074-4. Body and bonnet of DI conforming to IS-1865 of grade GGG-40/50, seals are made of approved EPDM, SS 304 float, guide and internals. Flange drilling according to IS-1538 with appurtenances. complete. Body and bonnet shall be coated with electrostatically applied epoxy powder coating with a coating thickness of 250 micron both inside and outside.

No.9 - Manufacturing, providing, trasporting, rolling, lowering, laying, jointing and commissioning of ERW (Electric Resistance Welded)/SAW (Submerged Arc Welded) MS pipes of Outer dia (Fe-410 grade) conforming to IS 3589-2001 with latest amendments, including perfect linking and welding of joints to correct position, cost of the pipes, conveyance, lead, lift charges, cost of all labour and giving satisfactory hydraulic test as per IS 3589-2001 with latest amendments for test pressure and working pressure both at factory and site etc. complete as per detailed specifications inside with CM 1:1.5 lining of minimum 10mm thick for pipes upto 610mm OD and with minimum 12mm thick beyond 610mm OD and out side with minimum 25mm thick coating in CM 1:3 over 50 x 50mm weld mesh of 13 gauge, including loading and unloading of pipes for the following diameters and specified thickness of plate as noted below, including bailing out of water wherever necessary.(Contractor will make his own arrangements for procuring water for testing). For MS pipe of 457mm dia 9.5mm thick

No.10 - Providing and laying Ductile Iron pipes of class conforming to IS 8329:2000 with latest amendments, conveyiing to work site, rolling and lowering into trenches, laying true to line, level and perfect linking at joints, testing and commissioning, including loading and unloading at both destinations, cutting of pipes wherever necessary, jointing with DI specials (excluding cost of specials) and rubber gaskets, cleaning the socket and spigot end with soap solution, applying soft soap to the socket and spigot ends before insertion of rubber gaskets, jacking and fixing in perfect conditions etc. The cost to include soap solution, soft soap, waste etc. and giving necessary hydraulic test to the required pressure as per ISS with all lead and lifts and cost of all jointing materials. (The contractor will make his own arrangements for water for testing. Earth work excavation in trenches to be measured and paid for seperately) Note: In sewerage projects for internal cement mortal lining ( CML ) of DI pipes, if High Alumina Cement ( HAC ) as recommended in Annexure B clause 16.3 of IS8329:2000 is considered in place of Slag or Sulphate Resistance Cement ( SRC ), the cost of pipes may be increased by 5-6% from the prices listed. For DI K9 pipe 150mm dia

No.11 - Providing, fabricating, supplying and fixing at site various diameters of MS Flanges as per IS standards to fix sluice valves as per sketch. The rate to include cost of all materials, labour, consumables, hire charges for tools and tackles, weldiing equipments etc. complete as per instructions of the Engineer in charge for Flanges of 150mm dia and 12mm thick

No.12 - Flanges of 450mm dia and 25mm thick

No.13 - Manufacturing, providing, transporting, rolling, lowering, laying, jointing & testing and commissioning of MS specials of minimum 8mm thick such as bends, tail pieces, reduces etc. conforming to IS-7322:1985 with latest amendments and including perfect linking and welding of joints to correct position includng cost and conveyance of materials with all lead and lifts, cost all labour and giving satisfactory hydraulic test as per IS:3589:2001 with latest amendments for test pressure and working pressure both at factory and site etc. complete as per detailed specifications with inside lining two coat of food grade epoxy painting of approved make with each coat of 250 micron thick (after dry) over one coat of food grade epoxy primer of approved make with minium of 50 micron thick (after dry) and outside 25mm thick coating in CM 1:3 by providing 50x50mm weld mesh including loading and unloading of the pipes for the following category to suit PSC / MS / CI / AC / DI / PVC pipes. The weight of MS shell only by considered before lining and coating for arriving at the rate. The thickness of plate will be specified by the engineer. (Contractor will make his own arrangements for procuring water for testing) for Pipe bends,branches, tail pieces, reducers etc. for upto 500mm dia pipes

No.14 - Pipe bends,branches, tail pieces, reducers etc. for above 500mm dia pipes

No.15 - Refilling available earth around trenches/pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ram- ming after watering with a lead upto 50 m , and lift upto 1.5 m. Including cost of all labour complete as per specifications

No.16 - Providing and laying in Cement Concrete for all Basement & surface level works, return walls, retaining walls, sunken floors etc. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all lead & lifts, cost of all materials of quality, labour, Usage charges of machinery, curing and all other appurtenances required to complete the work as pertechnical specifications M25 Design Mix Using 20 mm nominal size graded crushed coarse aggregates

No.17 - Percentage Additionalities for Formwork, Centering & Scaffolding - Additional percentage to be added to the finished rates of concrete of Buildings, Irrigation works, Water supply works, Roads & Bridges depending upon the type of structure

No.18 - Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tying with binding wire / soft annealed steel wire and other ancilary operations complete as per drawing and technical specification. All other type of structures

No.19 - Installation, Commissioning and Testing (for receipt of readings to the Bulk Flow Metering and Monitoring System SCADA Centre ) of HART output ( flow rate and Totalizer) based Electromagnetic Induction Bulk Flow Meters approved make to the feeder mains . The flow meter shall be full bore type shall be installed as per Manufacturer Recommendations. The Electromagnetic Induction Bulk Flow meters shall comply with the specifications mentioned. The maximum allowable measuring error shall be +/- 0.2 % of the volume. The meter transmitter shall convert the HART Output to produce reliable and correct output. The data to the remote server shall be transmitted with HART Protocol Remote Telemetry Device(RTU)..The Remote Telemetry Devices to Monitor the Real Time Water Flow and Totalizer by converting Output from Bulkflow meter (the Output is of HART output). The transmitter or the modem provided shall be of HART ( Highway Addressable Remote Transduser) type, which shall work in the master mode to read the totalizer and flow rate including panel box. The Remote Telemetry Devices shall have atleast the following specification.All data will be read via HART protocol and transmitted to the client Server via FTP Hardware:: Power: 12V DC, Connectivity: Builtin 3G with 2G fall back connectivity, Input HART: Builtin HART Modem in Master Mode to read flow rate and totalizer value, Digital inputs to connect to Door sensor and AC relays, One Relay output to switch on Light inside the enclosure, One MicroUSB port to configure the gateway, Customized sheet metal box, Operating Temperature: -10 to +70 Deg C operating, High Gain GPRS Antennae. Software :: Linux based Operating System, Programmable via C and Node.js, ReAP Framework supporting HTTP and FTP, Option to configure 3 FTP Sites for data transfer, Option to configure 1 HTTP url for data transfer, Automatic Upgradation of Firmware and Configuration Software via Over the Air. The cost includes all materials,accessories,labour complete. Battery Operated 450mm dia

No.20 - Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with Grader in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density complete as per MORTH specification No.406 B

No.21 - Removal of Unserviceable Soil with Disposal upto a suitable distance as directed by the Engineer incharge of work

No.22 - Providing and applying primer coat with SS1 grade Bitumen Emulsion on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70 kg/m2 using mechanical means

No.23 - Providing and laying Dense Graded Bituminous Macadam with 100 TPH capacity hot mix plant batch type using crushed aggregates of specified grading, premixed with bituminous binder VG-30, @ 4.0 per cent by weight of total mix and filler, transporting the hot mix to work site, laying with mechanical paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification clause No. 505 complete in all respects. (CSR 23-24, Vol-III, Sl.No.5.10, Pg. No. 34)

No.24 - Providing and applying tack coat with RS1 Bituminous Emulsion using emulsion pressure distributor at the rate of 0.20 kg/m2 on the prepared bituminous surface cleaned with mechanical broom

No.25 - Providing and laying Bituminous Concrete with 100 TPH capacity hot mix plant batch type using crushed aggregates of specified grading, premixed with bituminous binder VG-30, @ 5.4 per cent of mix and filler, transporting the hot mix to work site, laying with mechanical paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 507 complete in all respects