Rural Water Supply And Sanitation Department Tender

FLASH MIXER: The flash mixer shall be for the capacity of 20 m3/hr. Provisions shall be made for an outlet to connect the Lamella settler. The flash mixer should be designed for a detention period of 30 seconds. The flash mixer chamber shall be of RCC circular type and to be constructed with M30 proportion concrete mix. The minimum thickness of concrete of 150mm shall be provided to both wall and foundation of the flash mixer. A platform of 1.00 Mtr width shall be provided so as to seat the motor and gear box assembly. Suitable HP TEFC motor with starter and all accessories with GI hood cover shall be provided. A suitable worm reduction Gear box for the requirement with necessary couplings including V-Pulley, drive arrangements shall be provided. The paddles shall be with MS radial type turbine paddles with necessary top and bottom bearings assembly with S.S. shaft and MS base frame, including brass insertions, channels etc., necessary anti-corrosive paint shall be provided to all the MS parts. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

FLOCCULATOR: Water from flash mixer enters the flocculator. The size of the inlet to the flocculator shall be designed for the standard velocity range. The flocculator shall be one number having a capacity 20 m3/hr. Flocculator shall be designed for a detention period of minimum 20 minutes and shall be constructed with M30 proportion concrete mix conforming to IS456:2000 and 3370. The minimum thickness of concrete wall should be 150 mm. The exposed surface shall be painted with WPC painting of approved colour and shade over one coat of primer. The flocculator shall be provided with 40mm dia GI medium duty pipe hand railing in three rows with GI / RCC pillar support and MS ladder of 45Cms wide using angle iron of 65x65x8mm. The paddle assembly for the flocculator zone will have an independent mechanical assembly with motor and starter paddles across the cross section of the flocculator zone to be rotated independently with four members of paddles. The assembly will have no connection with the moving bridge. The arrangement proposed for fixing independent paddle shall be shown in the drawing. The offer shall be include providing inlet to flocculator and shall be of RCC pipe ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

CLARIFICATION SYSTEM: Providing, fixing and commissioning of lamella type plate settler system for 20 cu.m/h flowrates, along with all necessary accessories such as flow isolation valves, interconnecting piping, drain valves etc. complete in all respects for adequate performance of clarification system as directed by the engineer incharge. The minimum thickness of the lamella setler side wall shall be 150 mm with admixture of water proof compound in requisite proportion for plastering to water faces. The floor of the clarifier shall have a slope 1:12. The foundation slab shall have a minimum thickness of 150mm with RCC M30 concrete mix confirming to IS 456-2000 Type: Lamella settler Flow Direction: Upward Type of Plates: Corrugated/Flat Deg. Of inclination: 55 Tank MOC: Civil structure M30 Plates MOC: FRP (Isopthalic) Support frame: SS ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

HOLDING TANK: Construction of 5 m3 balancing tank to hold the outlet of lamella settler water for a minimum period of 15 minutes. The tank shall be rectangular in shape constructed above the ground level to collect water from the outlet of lamella settler, and shall be constructed with M30 proportion concrete mix conforming to IS456:2000 and 3370. The minimum thickness of concrete wall should be 150mm. The exposed surface shall be painted with WPC painting of approved colour and shade over one coat of primer, with all lead and lift complete as per specification as directed by the Engineer Incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

FEED PUMPING SYSTEM: Providing and fixing commissioning of Centrifugal Pumpset of 20 m3/hr capacity with adequate required head, as per IS: 1520-1660, IS-9079, IS: 325 for 20 cu.m/h flow of adequate discharge head as per vendor design and process requirement, along with all necessary accessories such as ELCB, MCB, electrical wiring from MCB to motors, suction and delivery header piping along with necessary flow Isolation valves, check valves etc. complete in all respect. (100% x 2 nos.) Casing: Cast iron as per IS: 210: Back pull out type/double suction/Horizontal split casing/Submersible Monoblock. (Specification as applicable) Impeller: CF8M Impeller Ring: CF8M Shaft: High Tensile steel –EN8 or SS 410 Shaft Sleeve: CF8M Bearings: Heavy duty Ball/Roller Bearing Drive Motor: IEC 60034 / IS 12615 - 10HP (Or as per design rating) Base Plate: Cast Iron with all lead and lift.etc complete as directed by the engineer incharge. Impeller shall be made in single piece and shall be securely keyed to the shaft. Measure is to prevent loosening during operation including the rotation in the reverse direction shall be provided. Replaceable shaft sleeves shall be provided the shaft where it passes through the stuffing box. Pump shall be provided with flexible coupling. Common base plate shall be provided for pump and motor. Suitable holes shall be provided grouting and these shall be so located that the base can be grouted in place without disturbing the pump and the motor. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

ACTIVE MEDIA FILTERS: Providing and fixing commissioning of active media filter vessel battery for 20 cu.m/h flow rate as under specification: Vessel Specifications: M.O.C.: Carbon Steel IS 2062 Type: Down flow Max. Filtration Velocity: 15.0 m/hr per vessel Backwash Flow: 40 – 45 m3/hr Internal Diameter: 900mm Height on straight: 1200mm Bed depth: 600mm Vessel Thickness: As per IS 2825 Max. Pressure drop: 0.5 bar. Feed pressure: 5.0 bar Hydraulic test pressureL: 10.0 bar Media (Type & Depth): a) Bottom Layer Gravel : 150 mm b)Top Layer Active Media : 450 mm Media Specifications: Active Media Grade:0.4 – 1.0 mm Type: Activated Media Density: 1.25 gm/cm3 Specific Weight Specific Weight: 1250 kg/m3 Roundness: Greater than 0.6 Coeff. Of Uniformity:1.5 – 1.7 Cross Sectional Ratio: 2.4 Specific Gravity: 2.5Anthracite Media Color: Black Bulk Density: 0.8gm/cc Approx Effective Size: 0.85-0.95 mm Hardness: 3.0-3.8 (Mohrs scale) Caustic Solubility: <1.0% Acid Solubility: <1.0% All vessels must be suitably painted on both internal and external surfaces with high grade industrial quality epoxy paint of min. 100 microns as per the procedure laid out in SSPC. The vessels shall have a nozzle plate type underdrain system having polypropylene mushroom nozzles for treated water collection in the vessel. with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

3-WAY FLOW CONTROL VALVES Providing and fixing commissioning of high quality, hydraulically actuated, 3-way flow control valves for flow regulation during filtration & backwashing modes of active media filters. Complete with all necessary accessories such as PU tubings, PU connectors, 24 VDC solenoid coils, Victaulic coupling connectors etc. These should be diaphragm actuated, compact 3 port valves. The diaphragm actuator plug assembly keeps the supply port closed while the opening of the backwash port and vice versa. Size: 2"X2", Double Chambered type with dynamic seal Flow Pattern: Angle/Globe Control Chamber Displacement Volume: 0.34-1.055 litres Operating Pressure: 0.7 - 10 bar Max. Temperature: 65 degrees Celsius End Connection: Grooved Material of Construction Body, Partition Wall & Lower Adaptor: Polyamide 6 – 30GF Diaphragm: NR-AL52 Nylon fabric reinforced Seats, Diaphragm Washer: Brass Plu, Plug Washer: Acetal copolymer Stopper Disc: PVC-U Spring: Stainless steel AISI 302 Shaft: Stainless steel – AISI 303 Seals, O Rings: NBR External bolts, studs, nuts & disks: Stainless Steel with all lead and lift.etc complete as directed by the engineer incharge.. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

MICRO SCREEN FILTER Providing and fixing of online self-cleaning screen type Micro Screen Filter for total flow of 20 cu.m/hr flow rate as per following specifications: Flow per filter: 20 m3/hr Filtration Degree: 10 microns, Max. Operating Pressure: 10.0 bar Design Differential Pressure at 50% clogged condition:0.5 bar Cleaning mechanism: Suction scanner type with Nylon bristlie Operating Voltage: 230 VAC Control Voltage: 24 VAC/24 VDC MOC - Housing & Lid: CS IS 2062 Epoxy Coated MOC - Screen: SS 316 Seals & Gaskets: NBR Max. water rejection: 0.7% of service flow with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

ISOLATION VALVES : 80 NB Providing and fixing of Butterfly valves for isolation and flow control in Active Media Filter. The isolation valves shall confirm to the following specifications. Size: 3" Valve type: Butterfly Construction: Wafer type Design std: API609 CAT A Testing std: API 598 Pressure rating: PN10 Flange std: ANSI B 16.5 150# Material of Construction Body: Cast Iron Disc: SGI Seat: EPDM Shaft: SS 410 Operator: Lever with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

NON RETURN VALVES (CHECK VALVES): 80 NB Providing and fixing commissioning of high quality non return valves (check valves) at feed pump delivery header & outlet of Micro Screen FIlter. The non-return valves shall confirm to the following specifications: Size: 3" Valve type:Check Valve Construction: Wafer type Design std: API 6D Pressure rating: PN16 Flange std: ANSI B 16.5 150# Material of Construction Body: Mild Steel Disc: Carbon Steel Seat: EPDM Operator: Self with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

AIR AND VACUUM RELEASE VALVES Providing and fixing commissioning of high quality Air & Vacuum Valve so as to discharge air during the filling or charging of the system, and intake air into the system during system drainage. As the system starts to fill, the valve shall function according to the following stages: ·        Entrapped air is released by the valve. ·        The liquid enters the valve lifting the float and sealing the valve. When internal pressure falls below atmospheric pressure (negative pressure): ·        The float will immediately drop away from the orifice. ·        Air will intake into the system. The air and vacuum release valves shall confirm to the following specifications. Working pressure range: 0.2 bar – 10.0 bar Testing pressure: 16.0 bar Working Temperature: 60 degrees Celsius Material of Construction Body: High tensile, UV Resistant, Engineering Plastic Internals:Corrosion resistant with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

ONLINE DOSING SYSTEM FOR FLOCULANT DOSING & CHLORINATION Providing and fixing commissioning of high quality industrial grade dosing system comprising of dosing pump and chemical storage tanks for adequate dosing of flocculants as well as pre and post chlorination. The chemical dosing pumps: ·        Should have high speed of operation with up to 100 strokes-per-minute for high resolution chemical feed, elimination of slug-feed effects. ·        The liquid end, drive and electronics should be modular in design, enabling economical repair or replacement of parts. ·        Must be equipped with double check valves to prevent loss of prime and ensure easy self-priming of up to 100 cps viscosity solutions with a 1 m. suction lift. ·        The diaphragm must be PTFE laminate over EPDM, molded onto a solid core. A retainer plate must be provided to minimize flow rate changes as pressure varies. The dosing pumps for online dosing system shall confirm to the following specifications: Pump Type : Electronic Metering Pumps with Microprocessor Control Max. Output: 4 l/hr Max. Pressure : 5.5 bar Power: 40 watts minimum Drive: Electrical power unit, class ‘F’ insulation. Suction Lift:1.0 m Flow regulation: manual Electrical Rating: 230 V AC +/- 10% Material of Construction Housing: Glass Filled PP Diaphragm: Flexiprene Ball: Ceramic Antisyphon Valve: PVC Foot Valve: PVC including with all lead and lift. with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

DIFFERENTIAL PRESSURE SWITCH Providing and fixing commissioning of differential pressure switch across the battery of active media filter for sensing drop in pressure across the filter battery and feedback to control panel. The Differential pressure switch should be an analogue type differential pressure indicator to be used to sense differential pressure build up across the pre filtration and media filtration system, independently. The differential pressure switch must be of heavy duty diaphragm type confirming to the following specifications including with all lead and lift.etc complete as directed by the engineer incharge. Differential Pressure Range:0-50" H2O (0-125 mbar) to 0-30 PSI Accuracy :�5% F.S. Max. Working Pressure : 1,000 PSIG (70 bar) Operating Temp. : -40� F To +200� F (-40�C to +93�C) Body Material: Aluminum, Brass, 316/316L Internal Materials: 316 Stainless Steel Elastomers : Buna-N (Std), Viton, Neoprene, Ethylene-Propylen Switch Mounting : Pre-set in Tube, Flat Pack, Din Connector Process Connections: 1/8" FNPT Bottom Connections ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

SOLENOID COILS Providing and fixing of electrical solenoid coils for hydraulic circuit regulation. The solenoid coil should be a compact 3-Way Latching Solenoid Pilot Valve, comprised of two main components: 1.      A dry solenoid actuator and 2.      A 3-way hydraulic pilot valve. The actuator is neutralized from water damages by an isolating membrane, which hermetically isolates it from the water. The coil should consume power only when switching positions, using a very short electric impulse. The hydraulic base should feature a manual override and consist of a bracket for attaching to the valve or to a solenoid manifold. The solenoid coil shall confirm to the following specifications: Operating Pressure Range: 0-10 bar Base Port: 1/8” NPT Base Orifice Diameter: 2.2 mm Base Flow Factor: a) Pressure port Kv = 0.12 m3/h @ 1 bar ΔP; Cv = 0.14 GPM @1 psi ΔP b) Exhaust port Kv = 0.14 m3/h @ 1 bar ΔP; Cv = 0.16 GPM @1 psi ΔP. Actuator Casing: Nylon Seals and Isolating Membrane: NBR Wetted parts: Nylon Base: Nylon Voltage Range: 12-50 VDC. Coil Resistance: 4.2 Ω Pulse Width: 20-100 mSec Required Capacitor: 4700µF Operation Modes (electrical connections): a) + Red & - Black: Solenoid vents b) + Black & - Red: Solenoid pressurizes. with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

INTERCONNECTING WATER PIPING Providing and fixing commissioning of interconnecting piping along with suitable flanges & counter flanges of ANSI B16.5 #150 class along with necessary nuts, bolts and gaskets, complete in all respects. The water piping shall be sized for a maximum velocity of 2.4m/s and pressure drop limited to 4m WC per 100m equivalent length. However, gravity lines and pumps suction line, shall be sized for a maximum velocity of 1.5 m/s. All piping, fitting and accessories shall be designed to withstand the maximum pressure in the corresponding line that may occur in the system under normal condition any exigencies. Pipes MOC: M.S. Tube Heavy Class-C ERW I.S. 1239/ 1964 Joints & Flanges: Screwed Unions, Slip on flanges Sealing Material: Non-Hardening Lubricant, 3mm, 3-ply, Rubber insertion All piping shall be black steel unless otherwise stated and from standard manufactures. Pipes shall be given one primary coat of red oxide paint before being installed except for insulted pipes. Pipe shall be sloping towards drain points. Fittings shall be new and from standard manufactures. Fittings shall be of malleable casting and of pressure ratings suitable for the piping system. Fittings used on welded piping shall be of the weld able type. Flanges shall be new and from standard manufacturers. Supply of flanges shall include bolts, washers etc. as require. Use of flanges made from plates will not be permitted. All pipes and fittings, valves, flanges etc. shall conform to piping element specification MSD— Tee-off connections shall be through reducing tees upto 150mm, otherwise ferrules welded to the main pipe shall be used. Drilling and tapping of the walls of the main pipes, shall be through unions/screwed flange upto 50mm dia and welded flanges for larger diameter. All equipment and valve connections, or connection to any other two or more meeting pipes, shall be through unions/ screwed flange upto 50mm dia and welded flanges for larger diameters. All welding shall be done by qualified (I.T.I – 6GR Grade) welders and shall strictly conform to BIS code of practice for manual metallic welding of Mild Steel. All weld joints shall be die penetrant tested and shall be hydro tested for any leakages. including with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

PRESSURE GAUGE Providing commissioning of high quality, industrial grade pressure gauges at various locations for measurement of pressure. The pressure gauge shall be filled with glycerine for adequate dampening. Dial Size: 6” Range: 0 – 10 bar with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

ELECTRICAL DISTRIBUTION & STARTER PANEL Starter panel for intake pumping system, Starter panel for Feedpumping system, power supply for Active media Filter panel, Power supply for Dosing Pump, Micro screen filter, lighting system & spares. Including power cable, control cable, Power supply upto main panel 75 mtrs length, Cable tray, protecting switches, necessary fusses, etc. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

CONTROL SYSTEM FOR ACTIVE MEDIA Providing commissioning of PLC based control panel for controlling Filtration and Backwashing sequence of Media Filters. The Panel shall comprise of PLC, HMI Screen, inbuilt transformer, contactors, relay, safety fuses etc complete in all respects to work on single phase 230 VAC and step it down to 24 VDC which is the required control voltage. The panel should be programmable with focus on ease of use, for changing flushing frequency, flushing duration, DP values, dwell times, master valve control etc. The panel shall be made of high quality weather resistant enclosure. The panel shall be connected with adequate lengths of high quality 1.5 sq. mm copper control cables to the external instrumentation such as DP switch & Solenoid coil. including with all lead and lift.etc complete as directed by the engineer incharge. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

Filter House Construction of suitable foundation & building with brick wall for active media filter battery, Micro Screen Filter including earth work excavation in all soils , providing and laying PCC of M-10 and raft of M-20 garde. Truss shed for 8 x 4 m2 (inside wall to wall) with minimum height of 4 mtrs from the Finished floor level consisting of Pre-coated sheets of minimum 0.45 mm thickness. Necessary illumination points inside of 4 twin fluorescent tubes, with extra power points & 1 mtr. wide projection on all sides to protect the plant from Rain & Sunlight. ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work

OPERATION & MAINTENANCE Operation & maintenance of the Filtration plant during defect liability period for one year including chemical (PAC/Alum powder & chlorine) ---- The rate including with all leads, lifts,loading,unloading,cost and convience of all materails, labour,equipments etc.,complete as per the direction of the engineer of the work