Kerala Rural Water Supply And Sanitation Agency Tender

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Kerala Rural Water Supply And Sanitation Agency - KRWSA Tender

Works
Environmental Service
Eprocure
Opening Date27 Dec 2022
Closing Date16 Jan 2023
Tender Amount₹ 46,25,100 
Notes
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Costs

Description

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BOQ Items

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DO_NOT_SHOW

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Course sand

720

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Fine sand

360

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Activated carbon

300

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Katalogs/MnO2/Birm

600

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Supply and fitting of two numbers 100 mm dia pressure gauges, air release valve, and 20mm valves, sampling taps and other fittings etc complete

12

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Anchoring the filter unit at site in cement concrete, including earth work excavation, cost of all materials, labour charges and all allied items of works etc complete

12

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Charges for washing cleaning and filling the filter media in the vessel as per the direction of officers concerned.

12

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Conveying and fixing the vessel at the reservoir site including installation charges

12

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Loading, unloading, and transportation charges

12

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water quality testing

12

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Appendix 2 - Filter 900mm diameter

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Fabricating and supplying cylindrical shape , stainless steel barrel of diameter 900 mm and height 1250mm made of 304 grade stainless steel. Bottom & top of the tank in spherical shape , top of the barrel is to be with detachable water tight flanged joint. Suitable supporting stand in stainless steel to be provided . At the top and bottom of the barrel , inlet and outlet are fixed with 75mm stainless steel pipe with flanged ends . Two number of 20 mm stainless steel pipe nipple are to be fixed at the top and bottom of the tanks for fixing pressure gauge, and other appurtenances. Four numbers of stainless steel perforated plates ( with 6mm at bottom , 4 mm , 2mm and 1mm perforation/longitudinal slots with required spacing) of 2mm thick ss plate having same inside diameter, (with required horizontal stiffeners) barrel. The barrel are to be provided with suitable locking and holdings arrangements for the horizontal plates . To hold the perforated plates horizontally inside the barrel four number of 10mm vertical stainless steel rods are placed inside suitably welded at the bottom of the vessel and 12 mm dia ss pipe having a length of 10cm/5cm bits inserted in the entire length of all the four rods . Stainless steel pipe 12 mm dia with 4mm perforations @ 5cm c/c on both sides shall be placed below the bottom most plate to support the plate and for blowing air from outside as per the drawings attached including cost of all fitting and fixing charges etc complete. The unit is to be tested for water pressure of 3kg/cm2. The unit shall be fitted with required length of 75mm stainless steel pipe 5 nos of 75mm stainless flanged ss ball valves,One non return valve as per drawing etc complete.

9

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Silex 12mm&6mm (20 cm thick)

2250

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Course sand (10cm thick)

1800

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Katalox ( 25cm thick)

1485

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Fine sand (10cm thick)

900

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Activated carbon

360

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Supply and fitting of two numbers 100 mm dia pressure gauges, air release valve, and 20mm valves, sampling taps and other fittings etc complete

9

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... More
Anchoring the filter unit at site in cement concrete, including earth work excavation, cost of all materials, labour charges and all allied items of works etc complete

9

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... More
Charges for washing cleaning and filling the filter media in the vessel as per the direction of officers concerned.

9

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... More
Conveying and fixing the vessel at the reservoir site including installation charges

9

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... More
Loading, unloading, and transportation charges

9

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... More
water quality test

9

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