JJM Augmentation of Ranni Pazhavanagadi and Vadasserikkara Villages -Supplying and installing 2.5 MLD pressure filter 2 Nos and upgradation of capacity of filter bed at Plant Anapparamala

Amount

Appendix -A-Upgradation of filter media

OD113228/2023-2024:Removing filter sand, various sizes of pebbles from the existing filter box carefully with any damages to PVC perforated pipe , mixing the various sizes aggregate, pebbles by head loading and conveying to the out side of plant house and sieving , washing, and stacking separately for reuse as per the direction of departmental officers.

OD113393/2023-2024:Cleaning the surface of filter box 1 nos (4.6x3.6 m/nearest size) scrapping, cleaning manifold, perforated pipes using by pumping the water inside the pipe and manifold using pump set and replacing the damaged portions and all incidental works etc complete as per the direction of departmental officers.

OD113299/2023-2024:Supplying 90 mm PVC pipe 10 kg for laterals inside the filter box and providing 1 cm dia hole 10 cm c/c at 3 line and placing the pipe inside the filter box between the center of existing laterals and connected one at manifold and providing end cap at one side after cleaning the filter box ,manifold and existing laterals pipes etc complete as per the direction of departmental officers

100.55.1:Supplying of 2 to 6 mm and 6 to 12 mm size fine pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5 km and labour charges for stacking, spreading, testing and as per the directions of the department officers etc. complete as per CPHEEO specifications.

100.55.2:Supplying of 12 to 20mm size pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5km and labour charges for stacking, spreading, testing and as per the directions of the department officers etc complete and as per CPHEEO specification.

100.55.3:Supplying of 20 to 40 mm pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5 km and labour charges for stacking, spreading, testing and as per directions of the department officers etc. complete and as per CPHEEO specification.

100.55.4:Supplying and stacking for measurement of filter sand having effective size 0.45 to 0.70 mm and uniformity coefficient 1.30 to 1.7, of specific gravity in the range of 2.55 - 2.65 and hard and clean, free from clay, dust and other impurities including cost of materials, labour charges and conveyance of materials up to 5 km and as per the directions of the department officers etc. complete and as per CPHEEO specification.

OD112777/2023-2024:Supply of Anthracite in quantity required as per design, Properly graded and tested by supplier specifying the source of material and quality commensurate to the following specifications - SP gravity - 1.45-1.55, Uniformity coefficient 1.5, Bulk density 0.073-0.075 T per m3, hardness - 3 MOH, Hard grove - 44-50, Carbon content 90%, Ash 3.4%, Volatile 5-7 %, Solubility - 1.5% in 10 % HCl/10% in NaOH for 24 hours certification including all cost, Taxes, Conveyance to site, loading and unloading etc., complete and labour charges for stacking, Spreading, Testing and as per directions of departmental officers etc., complete and as per CPHEEo specifications

OD112778/2023-2024:Conveying, laying and spreading already cleaned and washed sand/already washing and cleaned pebbles /new in the filter box carefully that the duel media interfaced is properly formed for maximum filter efficiency and longer life of filter media each layer should be laid without disturbing the lower layer as per the direction of departmental officers.

Appendix-B-Design, supplying and installing 2.5 MLD pressure filter -2 nos

OD113118/2023-2024:Design, supply, installation of satisfactory trial running of mechanical pressure filter unit of capacity 2.5 MLD, consisting of the following components with manual operation and minimum pressure loss. Pressure filter unit with sand filter vessel of carbon steel(IS 2062) having shell thickness 10 m.m and dish 12 m.m with epoxy coating out side and GRP lining inside suitable for an operating pressure of 4 kg/cm2 and test operating pressure of 6kg/cm2 and test pressure of 10kg/cm2. Filter with MS specials disc plate fitted at bottom for collection chamber and filter chamber having filter media consisting of pebbles of 400 m.m height and sand having 625 m.m height of effective size of 0.6 and uniformly coefficient 1.3 to 1.7 with disc type strained/as per the design of manufacturing company and Providing foundation 3x3 x0.5 size /suitable size as per the size with components including necessary trenching works as per the dia of pressure filter minimum 0.5 m / required depth meet the hard surface and providing RCC 1:2:4 mix using 10 m.m dia bar laid 15 c.c C/C at both directions and providing R.R masonry foundation in the same width and length and required height above ground and providing RR masonry basement 0.5 m height ,same width and length of foundation , providing RCC 1:2:4 mix using 10 m.m dia bar 15 cm C.C, plastering the basement side and top of RCC and firmly fixing the filter unit and interconnecting with pumping main and sump tank with all interlocking arrangements as per the direction of departmental officers.

Constructing light roof protection for Pressure filter

10.16.1:Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.Hot finished welded type tubes

4.1.3:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:2:4 (cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

12.1.2:Providing corrugate G.S. sheet roofing including vertical/ curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete ( up to any pitch in horizontal / vertical or curved surfaces), excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.0.80 mm thick with zinc coating less than 275 gm/m2

12.4.1:Providing ridges or hips width 60 cm overall width plain G.S. sheet fixed with polymer coated J or L hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete.0.80 mm thick with zinc coating not less than 275 gm/m2

Water World

Bidder Name

FLOWMAX WATER

Water World