Bengaluru Water Supply And Sewerage Board Tender

No4 - Providing and laying Ductile Iron pipes of class conforming to IS 8329:2000 with latest amendments, 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, 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 SulphateResistance Cement ( SRC ), the cost of pipes may be increased by 5-6% from the prices listed. For DI K9 pipes: 100mm dia pipeline

No5 - 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)150 x 100 x 150mm Tee

No6 - 100mm x 100mm Tee

No7 - 100 mm dia collar

No8 - 100mm x 90 dia MJ bend

No9 - 100mm dia end plate

No10 - 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. a)100mm dia DI valve

No11 - Manufacturing, providing, transporting, lowering, laying and jointing, testing and commissioning of MS specials confirming to IS 7322:1985 with latest amendments, perfect linking and welding of joints to correct position including cost and conveyance of materials with all lead and lifts, 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 specification with inside lining two coats of food grade epoxy painting of approved make with each coat minimum 250 micron, thick (after dry) over one coat of food grade epoxy primer of approved make with minimum of 50 micron thick (after dry) & outside 25mm thick coating in CM 1:3 by providing 50x50mm weld mesh including loading and unloading of pipes for the following category to suit PSC/MS/CI/AC/DI/PVC pipes. The rates are inclusive of all taxes and duties. The weight of the MS shell only be considered before lining and coating for arriving at the rate. The thickness of the plate will be specified by the engineer. (Contractor will make his own arrangement for procurring water for testing) a)Upto & inclusive of 500 mm dia of pipe

No12 - Wet Mix Macadam.Providing, laying, spreading and compacting graded stoneaggregate 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 paver/grader in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density.

No13 - Providing and constructing un-reinforced plain cement concrete pavement, thickness as per design, over a prepared sub base, with 43 grade cement or any other type as per Clause 1501.2.2 M30 (Grade), coarse and fine aggregates conforming to IS:383:2016:, maximum size of coarse aggregate not exceeding 25 mm, mixed in a concrete mixer of not less than 0.2 cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the formwork as per drawing), spreading the concrete with shovels, rakes, compacted using needle, screed and plate vibrators and finished in continuous operation including construction joints, primer, sealant, curing of concrete slabs for 14-days, and water finishing to lines and grade as per drawing and technical specification clause 1501 with all lead, lifts, loading & unloading charges, cost and conveyance of all materials, labour, equipments etc., complete. as per the directions of the Engineer-in-charge of the work

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

No15 - 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.15mm dia For minimum length of 2.0m

No16 - For minimum length connection pipe length beyond 2.0m for every 1.0m

No17 - Hire charges for dewatering pump to bail out water at leaking pits etc. complete