Kerala Water Authority Tender

OD6937/2023-2024:Repair/ Alteration of the under drain system by replacing all damaged pipes with suitable arrangements and providing all additional mechanisms and fixtures required according to the design of multi layer filtering system etc. complete.

15.2.1:Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in-Charge.Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

OD6949/2023-2024:Modification/alteration of the existing back washing system comprising of compressed air and clear water with existing blower and clear water providing new scouring system, providing such other mechanisms and fixtures required according to the design of multi layer media pack back washing operations complete-As per the direction of departmental officers. ( TS Approved : 2021/13068)

OD6996/2023-2024:Washing and cleaning the fitter chamber and rectifying damages of filter walls including glazed tiles and floor of the filter bed by concreating wherever necessary, preparing entire chamber suitable for dual media filter refurbishment ( TS Approved : 2021/13068)

15.23.1:Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.For thickness of tiles 10 mm to 25 mm

OD3697/2024-2025:Charges for Dismantling the existing 250 mm DF butterfly valve (modulating Type electrical actuator) by loosening or cutting out the bolts or lifting with help of chain pulley arrangement of checking for damages, removing from the existing pipe without causing any damages/ alignment to existing structure or pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing safety measures .. etc. complete as per the direction of Departmental officers

OD3831/2024-2025:Charges for Dismantling the existing 400 mm DF butterfly valve (modulating Type electrical actuator) by loosening or cutting out the bolts or lifting with help of chain pulley arrangement of checking for damages, removing from the existing pipe without causing any damages/ alignment to existing structure or pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing safety measures .. etc. complete as per the direction of Departmental officers

OD3710/2024-2025:Charges for Dismantling the existing 200 mm DF butterfly valve (modulating Type electrical actuator) by loosening or cutting out the bolts or lifting with help of chain pulley arrangement of checking for damages, removing from the existing pipe without causing any damages/ alignment to existing structure or pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing safety measures .. etc. complete as per the direction of Departmental officers

13.7.1:12 mm cement plaster finished with a floating coat of neat cement of mix:1:3 ( 1 cement : 3 fine sand)

11.49.2:Providing and laying Vitrified tiles in floor with different sizes (thickness to be specified by the manufacturer), with water absorption less than 0.08% and conforming to IS : 15622, of approved brand & manufacturer, in all colours and shade, laid with cement based high polymer modified quick set tile adhesive (water based) conforming to IS : 15477, in average 6 mm thickness, including grouting of joints (Payment for grouting of joints to be made separately).Size of Tiles 600x600 mm

OD2950/2024-2025:Cutting SS sheet, by gas cutting . Grinding the cut edges / welded portions in SS sheet, specials by grinding machine , Welding SS sheet, pipe and special by gas or electric plant for three run welding including cost of gas,all labour and hire charges of tools etc complete.

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)

OD118980/2023-2024:Disinfection and sterilization of one filter chamber, gullet, inter connecting pipes and water collection chamber, using appropriate disinfectant and devices so that the entire area is free from insects and its larvae and eggs including cost of disinfectant and clear water from other source, labour etc complete..as per the direction of departmental officers

100.98.1008:Engaging Coolie.

100.7.3:Bailing out water with engine and pump set above 10HP up to 20HP including conveyance to the site, erecting, dismantling and taking back of engine and pump, cost of fuel lubricating oil and other stores pay of staff etc., complete.

OD119645/2023-2024:Conveying and fixing C.I. butterfly valves (modulating type electrical actuator) by providing complete with bolts, nuts, rubber insertions etc. excluding the cost of valve : 250 mm diameter.

OD119648/2023-2024:Conveying and fixing C.I. butterfly valves (with cap) by providing complete with bolts, nuts, rubber insertions etc. excluding the cost of valve :200 mm diameter.

OD123914/2023-2024::Conveying and fixing C.I. butterfly valves (with cap) by providing complete with bolts, nuts, rubber insertions etc. excluding the cost of valve :400 mm diameter.

OD7036/2023-2024:Trial running and maintaining the filter beds for a period of one month and providing training to the KWA personnel in the operation and maintenance of the new system including providing knowledge transfer to the concerned engineers of KWA assaigned for the purpose including all expenses for such training etc. complete ( TS Approved : 2018/6287)

OD92362/2024-2025:charges for Laying anthracite / filter sand /Pebbles (having effective size 0.45 to 0.70 mm) / grit of effective size varying 6.35 mm to 3.2 mm in the filter box carefully over higher size pebble layer already laid so that the dual media interface is properly formed for maximum filter efficiency and longer life of filter media, each layer should be laid without disturbing the lower layer already laid, and ensuring uniform thickness for each layer and each media, and as per directions of the department officers.

Cost of Materials -

OD119016/2023-2024:Supply of the Anthracite as per item 1 above 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 Gravity1.45-1.55, Uniformity coeft.-1.5, bulkdensity0.73- 0.76T/m3,Hardness -3MOH, Hardgrove44-50,carboon cont; 90%,Ash-3.4%,Volatile 5.7%,Solubility-1.5% in 10%,HCL-10% NaOH, for 24 Hrs certification including all cost ,taxes conveyance to site loading & unloading etc. complete. ( TS Approved 2018/6287)

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.

OD119035/2023-2024:Supplying grit of effective size varying 6.35 mm to 3.2 mm for supporting media of filter bed ( TS Approved : 2020/13971)

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.

OD3008/2024-2025:supplying and 58mm PP/PPFV special nozzles for the filter underdrainage system and fixing the same on the filter bed floor with suitable stainless steel/FRP mezzanine floor &support system connecting to to the central manifold as per standard specification

OD5225/2024-2025:supplying of new Stain less steel sheet (Minimum 306/304/316, stainless steel grade to ensure superior corrosion resistance) thickness 10mm on the bottom of the filter bed for fixing sheet on the filter bed wall including cost of material, and all labour charges ..etc

OD119043/2023-2024:Supply, erection, testing and commissioning of flow meter.Optiflux 2000 DN 250 KROHNE Make , Including Electromagnetic Flow Sensor Model : Optiflux 2000. Technical Specifications for Electromagnetic Flow meter Process Data Fluid : Water Operating Pressure : 10 Bar Operating Temperature : 40 Deg Flow rage : Suitable to measure flow corresponding to velocity -12m/s to 12m/s Electromagnetic Flow Sensor Model : Optiflux 2000 Type : Pulsed DC Meter size : Refer Below Table Flow tube : SS 304 Coil housing : Fully welded Sheet Steel, PU coated Liner : Hard Rubber Electrodes : SS 316 Grounding type : Rings Grounding ring material : SS 316 Process connection : Flanged to ANSI 150# Flanges : CS, SORF – PN10 Area classification : Non-Hazardous Cable entry : M20 x 1.5 with blind plug Protection class : IP 68 Signal Converter Model : IFC 050 Cable length : 20 Meter Mounting : Remote Type : Microprocessor Based Output : 4-20mA, HART + Pulse / Frequency + Status Accuracy : ± 0.5% of measured value Max load : 500 Ohms Display : Large back lit LCD Display Parameters : Actual flow rate, totalized flow (8 digit), flow direction, flow velocity, conductivity, mass flow rate (at constant density) Diagnostics : Empty pipe detection Local indication : Programmable Power supply : 85-250VAC, 48-63Hz Housing : Die cast Aluminum with Polyester top coat Cable entry : M20 x 1.5 with blind plug Area classification : Non-Hazardous Protection class : IP 66 / 67 the cost of transportation, loading and unloading all taxes , testing charges etc complete

OD119533/2023-2024:Supply of CI Butterfly Valve (PN 10) modulating type 220 V AC Quarter turn ;Disc type SGI , Electrical Actuator ,Wafer type end to suit ASMEB16.5 -Size 200mm

OD119534/2023-2024:Supply of CI Butterfly Valve (PN 10) modulating type 220 V AC Quarter turn ;Disc type SGI , Electrical Actuator ,Wafer type end to suit ASMEB16.5 -size 250 mm

OD123831/2023-2024:Supply of CI Butterfly Valve (PN 10) modulating type 220 V AC Quarter turn ;Disc type SGI , Electrical Actuator ,Wafer type end to suit ASMEB16.5 , Size 400mm