Bengaluru Water Supply And Sewerage Board Tender

No4 - Supplying & Laying of Ductile iron pipes of Class K-9, conforming to IS 8329:2000 with latest amendments and conveying 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 and cuts of pipes wherever necessary including jointing of DI pipes and specials, (excluding cost of specials) with rubber gaskets including cleaning the spigot and socket ends before insertions of rubber gasket, jacking and fixing in perfect conditions including cost of soap solutions, soft soap, waste etc., and giving necessary hydraulic test to the required pressure as per ISI with all lead and lift including cost of jointing materials(contractor will make his own arrangements for procuring water for testing a)100mm dia DI pipeline

No5 - Supplying and fixing of DI Resilient seated soft sealing sluice valves with boddy 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 14846-2000 /DIN 3202 f4/f5 the stem sealing should be with toroldal sealing rings (minimum 2 "O" rings). all the valves should be with electro static power coating both insidde and outside with pocket less body passage. The rate is inclusive of cost of valve, flanged spigots, MJ Collars, bolts and nuts, rebber insertions, excluding earthworks. PN.10.0 a)100mm dia DI valve

No6 - Supplying of MJ DI Specials suchh as branches ,bends ,suitable for the DI K9& K7 pipes and CI LA Class pipes as per IS 13382 with latest amendments with complete accessories and fixing at site excluding earth work including loading and unloading at both the locations icluding loading and unloading at both the locations ,including freight charges , etc complete. a)100 mm dia x Tee branch

No7 - 100mm dia MJ collar

No8 - 100mm x 90 deg dia MJ bend

No9 - 100mm x 45 deg dia MJ bend

No10 - 100mm x22.5 deg dia MJ bend

No11 - Providing, fabricating and fixing at site various diameter MS MJ ends with dummy plates (END CAPS) to suit CI / DI spigots end as per the sketch. The cost is inclusive of all materials, i.e, rubber 'O' rings, flanges, bolts and nuts, dummy plates, consumables, hire charges, tools and welding equipments, lead and lifts, etc. complete as per the instructions of Engineer in charge. For CI / DI pipes of 100mm dia.

No12 - Providing, laying, spreading and compacting graded stones aggregate to wet mixmacadam specification including pre mixing the material with water at OMC in mechanical mix plant carriage of mixed method of tipper to site, laying in uniform layers with paver in sub-base/base course on well prepared surface and compacting with vibratory roller to achieve the desired density complete as per specification.

No13 - Refilling available earth around trenches/pipelines,cables in layers not exceeding 20cm in depth, compacting each deposited layer by ramming ater watering with a lead upto 50m and lift upto 1.5m. Including cost of all albour complete as per speciications.

No14 - Removal of Unserviceable Soil with Disposal upto a suitable distance as directed by the Engineer incharge of work

No15 - Providing and applying tack coat with RSI Bituminous Emulsion using emulsion pressure distributor at the rate of 0.25kg/m² on Granular surface.

No16 - Providing and Laying Bituminous concrete with 120 TPH capacity hot mix plant batch using crushed aggregates of specified grading, pre-mixed with bituminous binder VG-30 @ 5.2 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 respect. Bituminous concrete grading I for traffic LESS THAN 20 MSA.

No17 - Providing and laying in position Cement Concrete for levelling course for all works in foundation. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150 mm thickness, well compacted using plate vibrators, including all lead & lifts, cost of all materials of quality, labour, Usage charges of machinery, curing, and all the other appurtenances required to complete the work as per technical specifications Mix 1:3:6 Using 20 mm nominal size graded crushed coarse aggregates

No18 - Provding house connection with excavation in all types of soils without damaging the other ulitilies and supplying and aying 25mm OB MDPE pipe (PE80) manufactured in accordance with ISO 4427-1996 with minimum required strength of 8 Mpa, hydraulic design stress of 6.3 Mpa and with minimum wall thickness of 2.3mm by making the bore of 15mm dia. size on the Board's supply mains if 100mm dia using drilling bits or machines only and laying the pipe line at a depth not less than 0.45 mtrs. from the road surface, including providing 40mm dia. "A class GI pipe as casing over the MDPE pipe from the bore point and upto the entrance of the premises and removeing the stone slab covering of the drain and dismantling the size stone mansonry wherever necessary and making bore in the wall of the premiss. On entering the premises, connection should be continued with 20mm GI pipe by making "U" shape for the meter point below the ground level by making pit with sufficient space for the easy installation and removal of the water meter and providing vartical stand pipes on both sides of the mater. The connection should be secured firmly on the Board's main pipe with SS/Brass ferrule of size 1/2"x 3/4 and fixing the union joint and gate valve/stop cock before the meter point and a reflex valve/Non-return valve should be fixed on the connection after the mter point. (All these fixtures should be of standard quality conforming to IS). The compression fittings for MDPE pipes conforming to ISO 14236 and its latest versions. The excavated ttrench should be refilled with soft selected earth and the dismantled masonry of the drain should be re-constructed with availble size stones in CM 1:8 and providing coping in CC 1:3:6 wherever required and the stone slab covering should be refixed in position with pointing in CM 1:3 and also the bored wall of the premises should be re -done to the original position and the rates are inclusive of the cost of all the materials, cement, sand water etc., required for these works. The road suface should be compacted well and brought to the original condition and the excess earth or debris should be disposed off to a disctance with an initial lead of 10km etc. complete for. For minimum length of 2.0m

No19 - For minimum length connection pipe length beyond 2.0m for every 1.0m