Kerala Water Authority Tender

OD75292/2024-2025:Supply of flow meters and accessories of size 350 mm-as per following specification ELECTROMAGNETIC FLOW METERS : a)The Electromagnetic Flow Meters shall be installed in RCC chambers/open pits or buried for indication of flow rate and total consumption of water in a transmission or distribution pipe network of water supply system. b)Full bore electromagnetic flow meters should be designed, manufactured and calibrated according to ISO standard and shall withstand maximum working temperature of about 600 C and working pressure of 10 kg/cm2. The flow meter shall be capable of measuring bi-directional flow. c)Electromagnetic Flow Meter shall be a velocity sensing electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 10 kg/cm2 working pressure. d)The meter shall be manufactured to highest standard available for mag-meters. The meter shall be equipped with minimum six digit digital totalizers, reading in units of kiloliters and shall be accurate within 0.5% of true flow. e)The accuracy should be inclusive of linearity, hysterisis, repeatability, temperature and pressure effects. f)The meter assembly shall operate within a range of 0.5 m/sec to 5 m/sec and be constructed as follows: a.Meter Tube (Sensor) b.Coil Housing c.Signal Converter g)The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and revere directions. The converter shall provide an isolated 4-20 mA output into minimum 600-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. h)The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays ?Rate of Flow? and ?Total Volume?. The converter shall be compatible with Microsoft Windows and other software programs with built in terminal communication capabilities of RS 485, HART or other protocols for interface. The converter shall be remotely mounted maximum up to 200 m from the sensor, and shall be supplied with all calibration complete for desired requirements. i)Converter shall be supplied with a programmable low flow drop out and empty pipe zero return. The signal converter housing should be diecast aluminum with glass window. j)The converter cum transmitter should be fully programmable from the front facia. k)The programming should be user friendly, self-prompting menu driven. l)Volumetric Testing of all meters must be performed and approved prior to shipment. The complete meter assembly and signal converter must be wet accuracy tested and calibrated as a unit near minimum, intermediate, and maximum specified flow ranges of the meter (full range of flow). m)The overall uncertainty of the calibration rig should be at least three times better than the uncertainty of the full bore electromagnetic flow meter. n)The competent Government authority such as FCRI/NABL must certify the test facility. All the meters shall be calibrated for a minimum of 3 point. The Manufacturer must have the test facility for every size( Max Size=Max Size of Meter in Tender) & should not be limited up to specific size. o)If manufacturer does not have NABL then the meters shall be strictly tested at FCRI. p)The manufacturer should have an ISO 9001, 14001 & BS 18001 certification. The magnetic flow meter should perform within the required accuracy of measured value without being affected by change in pressure due to demand fluctuation. q)Flow meters being used for potable water, Drinking water approval certificate should be required from a central government approved laboratory like CFTRI, Central Food Technology & Research Institute. r)The length of the sensor should be as per manufacturing standard. s)Supplier should have in-house calibration facility and should give calibration certificate for all the flow meters. The flow meter should have grounding rings only. Calibration of each Meter shall be tested at in house facility of manufacturer for the sizes for which manufacturer has this facility. The test bench of such manufacturer should be certified by a reputed government organization like FCRI or NABL. t)Supplier must have test facilities, spare parts, and personnel to maintain, instruct, train or whatever is necessary to assure that meters shall be maintained throughout the guarantee/maintenance contract period. u)The Bidder sho uld submit data sheet of Full bore Electromagnetic flow meter to be supplied along with the proposals. After award of contract, the contractor shall submit the work plan, quality plan and different check lists to the KWA for approval and after approval 3rd party inspection should be called. Technical Specification. A) Process Liquid Type: Potable water/raw water Type of solid: Silt particles B) Operating Condition Operating pressure: As per flange rating Operating temperature:0o C to 50o C. C) Flow Sensor Type:Pulsed DC excitation System :Separate with cable output Power supply:230 V AC, 50 Hz End Connections:Strictly Fixed Flanges of Carbon Steel only( No Lap joint will be acceptable) Flange Rating:PN10 Electrode material:SS 316 (Stainless steel)/Platinum /Tantalum Meter tube:SS 304 (Stainless steel) Electrode type:Round head electrodes, self-cleaning type Lining material:Hard Rubber Protection category:IP 68 Measuring accuracy:Measuring accuracy +/-0.5% of Measured Value inclusive of Linearity, repeatability, Pressure Effect and Hysterics between 0.5 - 4 m/s velocity. Coil Housing:SS 304 with fully welded construction Connection / Junction Box:SS 316 Earthing: Grounding Rings in SS 304, Grounding Electrodes are not accepted. Fluid conductivity:> 20 ? Siemens/cm Marking: Direction of flow with arrow, size, Sr. no, make D) Flow Transmitter/Converter Type: Microprocessor based, Modular Design, remote mounting Display language: English Ambient temperature:-20 C to +600 C Display: Min. 2 line back lit LCD for indication of actual flow rate, forward, reverse, sum totalizes Outputs: One Current output (4 ? 20 mA) One scalable pulse output One Status output Protection Category: IP 67 Enclosure: Die Cast Aluminum with polyurethane finish with glass window Programming: Through Key /keypad on front facia /optical touch key Power Supply:230 V AC, 50 Hz Cable Gland:?? NPTF (4 glands of double compression type) Mounting: Wall mounted/Panel Mounted Interface: HART Power failure mode: Provision of RAM/PROM to store parameter entered and measured flow data during power failure Max. Separation: Up to 200mtrs. between sensor & transmitters Terminals: hock ? Hazard ? protected push lock terminals Error Identification:0/3.6/22 m Amp Interchangeability: Fully interchangeable with all sizes of flow sensors Safety classification: General purpose certification

ANCHOR BLOCK FOR EXISTING PUMPING MAIN

2.6.1:Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed.All kinds of soil

4.1.8:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size)

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

5.9.2:Centering and shuttering including strutting, etc. and removal of form for:Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

5.22.6:Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

4.1.4: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 )1 cement : 2 coarse sand : 4 graded stone aggregate 40 mm nominal size)

Construction of toilet

2.32:Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area cleared.

2.8.1:Earth work in excavation by mechanical means (Hydraulic excavator) /manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.All kinds of soil

4.1.8:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size)

5.1.2:Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level:1:1:5:3 (1 cement 1.5 coarse sand :3 graded stone aggregate 20 mm nominal size

5.9.1:Centering and shuttering including strutting, etc. and removal of form for:Foundations, footings, bases of columns, etc for mass concrete

5.9.5:Centering and shuttering including strutting, etc. and removal of form for:Lintels, beams, plinth beams, girders bressumers and cantilevers

5.22.6:Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

50.4.1.1:Providing and laying in position cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 12.5 mm nominal size) up to floor five level excluding the cost of centering, shuttering, finishing for leveling coarse of floor and roof etc.

50.6.3.2:Solid block masonry using pre cast solid blocks (Factory made) of size 40x20x10 cm or nearest available size confirming to IS 2185 part I of 1979 for super structure up to floor two level for 10 cm thick wall in : CM 1:6 ( 1 cement : 6 coarse sand) including cost of scaffolding complete

13.1.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

13.37.1:White washing with lime to give an even shade:New work (three or more coats)

13.61.1:Painting with synthetic enamel paint of approved brand and manufacture to give an even shade:Two or more coats on new work

2.25:Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

11.41.1:Providing and laying vitrified floor tiles in different sizes (thickness to be specified by the manufacturer) with water absorption less than 0.08% and conforming to IS : 15622, of approved make, in all colours and shades, laid on 20 mm thick cement mortar 1:4(1 cement : 4 coarse sand), including grouting the joints with white cement and matching pigments etc., complete.Size of Tile 500x500 mm.

11.36:Providing and fixing I st quality ceramic glazed wall tiles conforming to IS : 15622 (thickness to be specified by the manufacturer), of approved make, in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer -in-Charge, in skirting, risers of steps and dados, over 12 mm thick bed of cement mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3 kg per sqm, including pointing in white cement mixed with pigment of matching shade complete.

9.141:Providing and fixing PVC Door Frame of size 50x47 mm with a wall thickness of 5 mm (±0.2mm), made out of single piece extruded PVC profile, with mitred cut joints and with 2 nos of PVC bracket of size 190 mm x 100 mm long arms of cross section size 35 x 15 mm & self driven self taping screws, the vertical door profiles to be reinforced with 40x20 mm M.S. rectangular tube of 0.8 mm, including providing EPDM rubber gasket weather seal throughout the frame, including jointing 5 mm PVC frame strip with PVC solvent cement on the back of the profile. The door frame to be fixed to the wall using 8x100 mm long anchor fasteners complete, all as per manufacturer's specification and direction of Engineer-in--charge.

9.142.1:35 mm thick factory made Solid panel PVC Door shutter, made out of single piece extruded solid PVC ( ±0.2 mm) thick, having styles & rails (except lock rail ) of size 95 mmx 35 mm x 5 mm, out of which 75 mm shall be flat and 20 mm shall be tapered (on both side), having one side thickness of 15 mm integrally extruded on the hinges side of the profile for better screw holding power, including reinforcing with MS tube of size 40 mm x 20 mm x 1 mm, joints of styles & rails to be mitered cut & joint with the help of PVC solvent cement, self driven self tapping screws & M.S. rectangular pipes bracket of size 190 mm x 100 mm of cross section size 35 mm x 17 mm s 1 mm at each corner. Single piece extruded 5 mm thick solid PVC Lock rail of size 115 mm x 35 mm x 35 mm, out of which 95 mm to be flat and 20 mm to be tapered at both ends, having 15 mm solid core in middle of rail section integrally extruded, fixing the styles & rails with the help of solvent and self driven self tapping screws of 125 mm x 11 mm, including providing 5 mm Single piece solid PVC extruded sheet inserted in the door as panel, all complete as per manufacturer's specification and direction of Engineer-in-charge.Non decorative finish (matt finish)

21.1.2.1:For shutters of doors, windows & ventilators including providing and fixing hinges / pivots and making provision for fixing of fittings wherever required including the cost of EPDM rubber/ neoprene gasket required (Fittings shall be paid for separately)Anodised aluminium ( anodised transparent or dyed to required shade according to IS : 1868, Minimum anodic coating of grade AC 15)

21.3.1:Providing and fixing glazing in aluminium door, window, ventilator shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of Engineer - in -Charge. ( Cost of aluminium snap beading shall be paid in basic item):With float glass panes of 4.0 mm thickness

17.3.1:Providing and fixing white vitreous china pedestal type water closet (European type) with seat and lid, 10 litre low level white vitreous china flushing cistern & C.P. flush bend with fittings & C.I. brackets, 40 mm flush bend, overflow arrangement with specials of standard make and mosquito proof coupling of approved municipal design complete, including painting of fittings and brackets, cutting and making good the walls and floors wherever required :W.C. pan with ISI marked white solid plastic seat and lid

50.18.9.9.1:Providing and fixing PVC pipes includings jointing of pipes with one step PVC solvent cement, trenching, refilling & testing of Joints complete as per direction of engineer in charge.110 mm dia 6Kgf/cm2

50.18.8.3.1:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Concealed work, including cutting chases and making good the wall etc. 25 mm pipe 12 kgf/cm2

18.51.1:Providing and fixing C.P. brass long body bib cock of approved quality conforming to IS standards and weighing not less than 690 gms.15 mm nominal bore

50.9.15.1:Supplying and fixing 200 mm Aluminium aldrop

50.17.1.2:Supplying and fixing CP Towel rod 45cm or nearest available length including cost of materials and labour charges etc complete as per the direction of site Engineer-in-charge.

50.17.1.4:Supplying and fixing CP Health faucet good quality including cost of materials and labour charges etc. complete as per the direction of site engineer-in-charge.

17.7.3:Providing and fixing wash basin with C.I. brackets, 15 mm C.P. brass pillar taps, 32 mm C.P. brass waste of standard pattern, including painting of fittings and brackets, cutting and making good the walls wherever require:White Vitreous China Wash basin size 550x400 mm with a pair of 15 mm C.P. brass pillar taps

OD76676/2024-2025:Cost of septic tank - 25-30 flush capacity

10.2:Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

12.1.1: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.1.00 mm thick with zinc coating not less than 275 gm/m2

OD76678/2024-2025: Cost of new dry waste incinerator