DEPOSIT_Nagara Sanchayam_Thonikkadavu (Pkg2)_Kolazhy GP

Laying of Pumping Main 90 mm PVC pipe (Working Charges)

100.1.1:Excavating trenches of required width for pipes, cables, etc., including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20cm in depth, including consolidating each deposited layer by ramming, watering, etc., and disposing of surplus excavated soil as directed, within a lead of 50m, in all kinds of soil.

100.1.5:Excavating trenches of required width for pipes, cables, etc., including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20cm in depth, including consolidating each deposited layer by ramming, watering, etc., and disposing of surplus excavated soil as directed, within a lead of 50 m, in Ordinary Rock.

100.2.7:Excavating trenches of required width for pipes, cables, etc., including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20cm in depth, including consolidating each deposited layer by ramming, watering, etc., and disposing of surplus excavated soil as directed, within a lead of 50m, in Medium Rock where Blasting is Prohibited.

100.8.1:Fencing one side of trenches, 1.50m height with two rows of 10cm plastic caution tape in vertical casuarina pole (girth 15cm to 24cm) fixed at 2m intervals.

100.9.8:Laying uPVC pipes of class 2 to class 6 and specials, lowering to the trenches already made, placing in position aligning the pipeline to the lines and levels and jointing the pipes and specials with solvent cement and testing the pipeline with water to the required test pressure (excluding cost of pipes and specials): 90 mm nominal outside diameter pipes.

100.31.1.1:Conveying and fixing C.I. sluice valves (with cap) by providing bolts, nuts, rubber insertions etc., complete, but excluding the cost of the valve (tail pieces, if required, will be paid separately): 80mm diameter, Class I.

100.32.3:Conveying and fixing C. I. Double Acting Air Valve of approved quality with bolts, nuts, rubber insertions etc., complete, but excluding the cost of air valve (tail pieces, if required, will be paid separately): 50mm Double Acting Air Valve.

18.12.8:Providing and fixing G.I. pipes complete with G.I fittings including trenching and refilling etc. External work80 mm dia nominal bore

Pumping Main 90 mm PVC pipe (Cost of materials)

100.98.236:Supply of PVC Pipe, 10kg/cm2, 90mm Dia.

OD223575/2024-2025:Add 3 % for pvc specials

100.98.446:Supply of CI Air Valve, Conforming to IS 14848 - 2000, Double Orifice Type DS2, Size 50mm.

100.98.457:Supply of CI Double Flanged Sluice Valve Conforming to IS 14846 - 2000, Sluice Valve with Cap PN 1.6, Size 80mm.

Installation of submersible Motor Pump set

OD223574/2024-2025:Supply and erection of best quality ISI marked KWA approved open well submersible motor pump set having a 4.3 lps discharge against 51.51 m head (7.5 HP) working at 415 V at 50 c/s with bronze impeller , stainless shaft, CI pump casing with suitable type base plate. Including suitable starter with protection relay, MS panel board withMCCB, ELCB, Capacitor, indicator lamps, volt meter, ammeter, etc. suitable for the above motor pump set including necessary copper cable for wiring, earthing, GM/CI non return and sluice valves, suction and delivery connections etc as per the ISI and IE regulations and KSEB standard and erected and trial run conducted for 7 days as per the direction of departmental officers .if any documentation is required that should be arranged by the tender.

Integrated pressure filter cum iron removal plant and chlorine dosing system

OD223578/2024-2025:Designing, supply, installing one number of Integrated pressure sand filter cum Ironremoval Unit as per the technical demand and site condition ( The system shall be able to treat the raw water contain a turbidity level of at least 16.1 NTU and iron content 1.6 mg/l) and its trial running and commissioning. The Integrated pressure sand filter cum Iron removal Unit is of capacity 17000 LPH Discharge at 62 m head(Suitable to the head and dicharge of the pump set). Pressure Filter vessel with Diameter 1000 mm and HOS 1800 mm ( Height ) and Shell thickness 6 mm and Dish end thickness 8 mm adequate to withstand possible maximum internal pressure. The container should have a manhole with cover at top for easy inspection of the unit provision of door/ dummy at bottom for media removal. The unit should be incorporated with best quality 2 1/2?? (65) mm C I Butterfly Valves having ISI mark for filter unit functioning including rinsing and back washing. The outlet of the Integrated pressure sand filter cum iron removal unit shall be connected with the Pumping Main. The scope of work includes all related, mechanical and plumbing works and interconnection of the system at inlet and outlet with existing pumping main, by pass arrangement. All the metallic parts should be painted with approved quality anticorrosive paint. The filter media comprising of graded Coarse, Fine Sand and Iron removal media of catalox. It should have good performance life for a minimum period of 2 years. The supporting under bed materials shall be graded pebbles/crushed gravel etc. : The Basement should be of 1.5 meters square with 0.75 cm depth RR Masonry and the 0.20 cm. RCC with 1:1.5:3

OD223579/2024-2025:Design, Supply and installation based on site conditions and as directed by the Engineer in charge and commissioning of 1 No of Chlorine Dosing System with all necessary accessories. The chlorine solution shall be direcly injected to the system at suitable point by using suitable chemical dosing pump (mechanical diaphragm pump) having adjustable discharge up to 10 lts/Hrat a delivery pressure of 15 kg/cm2 so as to maintain required residual chlorine in the treated water as per the norms including all accessories such as suitable angle stand to fix the pump set, best quality 100 lts PVC tank to the correct alignment and wiring from existing panel board to the pump set by using power cables encased in PVC conduit and trail running, etc

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