Greater Cochin Development Authority Tender

od156200/2024_2025 : Supply, installation, testing & commissioning of water supply system pipe work including solvent welded/threaded fittings(tees, elbows, unions, reducers, coupling, etc.), GI "U" bolts, GI slotted rails, rail legs, accessories, etc. for supply riser, distribution risers, ring mains, suspended pipes, etc. with pipes and fittings as per uPVC schedule-40/80 suitable for working pressure of 20bars all in accordance with drawings and relevant standards.Pipe supporting/ Clamping details:- For vertical shaft piping, pipes shall be clamped/supported by using 8mm GI "U" bolts to heavy duty GI slotted (2.5mm) rails& rail legs. For suspended piping, pipes shall be clamped/supported by using 8mm GI "U" bolts to heavy duty GI slotted rails(2.5mm) & slotted rails shall be suspended using 10mm threaded road, 10mm angle fastner, nuts & washers to the slab.

od156303/2024_2025 : Supply, installation, testing and commissioning of UPVC under ground drainage pipes conforming to IS 15328 including necessary fittings, excavation, connection to manholes, bedding the pipe in constant intravels, back filling, removing the surplus etc. as per IS:1742-1983 and testing the lines to required hydraustatis pressure for below ground(seware) installation all inaccordance with the drawings and relevant standards.

4.1.2 : Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:1/2:3 (cement : 11/2 coarse sand : 3 graded stone aggregate 20 mm nominal size)

13.7.2 : 12 mm cement plaster finished with a floating coat of neat cement of mix:1:4 ( 1 cement : 4 fine sand)

14.72 : Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done .