Cauvery Neeravari Nigam Limited Tender

CNN004 - Cutting Asphalt /Concrete road surface using machine cutter for leakagepit with earth work excavation in all classifications of soil including alllead and lifts bailing out water with pumps including barricading, danger lighting etc., as per requirement and disposing of the excavated stuff asdirected. After attending the leak, refilling the trench for 30 cm depth quarry dust above and around pipelines and balance with available earth in layers not exceeding 20 cms in depth, compacting Each deposited layer by ramming including watering and consolidation by mechanical meansapproved by Engineer Incharge. (Work to be carried out as per leak repairmanual and the rate includes hire charges of dewatering Pump, tractor Jeep with all kinds of Labour in a Complete manner complete all lead and lifts as per engineer incharge

CNN005 - Manufacturing, supplying, laying in position, aligning, jointing, testingand commissioning of electric resistance welded / submerged arcwelded mild steel ( Fe-410 grade ) raising main pipe of specified diameter and plate thickness provided with flanges / outlets wherever required for connecting to manifold system / for fixing valves andprovided with 625 micron thick coat of Polyurethane paint for inner lining and inner surface, 25mm thick outer linning of CM 1:3 proportion by volume ( aggregate for outer lining shall be mixture of 80 percent natural sand and 20 percent 6 mm down crushed stone chips ) over 13 gauge 50 x 50 mm opening size weld mesh including cost of all materials, machinery, labour, cutting, bending, welding, cement mortar lining, finishing, curing, conveying to spot, lowering, aligning, jointing, arranging water for testing, hydraulic testing at manufacturing site and after laying and jointing at specified test pressure & all necessary works complete as per specifications and approved drawings. Basic Cost of MS Plate is considered as Rs.71,700.00 per MT. Diameter of raising main pipe mm Thickness of plate mm. Note: Rate per m of pipe Rate per tonne x weight of pipe per m weight of pipe per m for specified diameter in mm and thickness of plate in mm = 0.597x diameter of pipe in mm x plate thickness in mm / 24000 complete all lead and lifts as per engineer incharge

CNN006 - Providing and fixing Wafer type single flange Butterfly valve conforming to relevant IS 13099/9991 EN GGG40/50 with latest amendments as detailed below of the following diameter and types with TP set and conveying to work site, loading and unloading, stacking etc. with all lead and lift. The rate is inclusive of the cost of valve, TP set, rubber insertion, bolts and nuts and excluding earth work excavation.For PN 10.0 (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 complete all lead and lifts as per engineer incharge

CNN007 - Supply and fixing of Cast steel ASTM A 216 Gr.WCB double flanged Dual plate check valve Conforming to API 594 with latest amendments Shaft material shall be SS420/431 and spring shall be spring steel superior grade quality as detailed below of following diameters and types and conveying to work site, loading, unloading, stacking with appurtenances., complete with all lead and lift. The rates are inclusive of cost of Galvanised Bolts and Nuts: For class 150 etc. complete 200mm. complete all lead and lifts as per engineer incharge

CNN008 - Providing and fixing of Single/ Double chamber triple function tamper proof (Both the orifces to be housed in the single chamber) Air valves with Body and cover in Ductile cast iron of grade GGG 40/ 50. All internal parts such as float, shell with appurtenances., all cover bolts of austenitic alloy / SS 304 steel, DN 50 float of HOSTAFLON / SS 304 and gaskers and seals of EPDM. Epoxy powder coating (EP-P) inside and outside colour blue RAL5005. The valves should be designed for all the three functions i.e., 1. Large orifice for venting of large air volumes on start up. 2. Large orifice for intake of large air volumes. 3. Small orifice for discharge of pressurized air during operation.For PN 10.0 etc. complete.For TP Air Valves of 100mm dia complete all lead and lifts as per engineer incharge

CNN009 - Refilling available earth around trenches/pipelines, cables in layers notexceeding 20 cms in depth, compacting each deposited layer by ramming afterwatering with a lead upto 50 m, and lift upto 1.5 m. Including cost of all labour complete as per specifications complete all lead and lifts as per engineer incharge