Flushing of existing Bore well and repair works in Kamaraj nagar in Ward 28, North Zone

Providing borewell flushing using a diesel-operated air compressor of minimum 300 CFM capacity with suitable pressure, including all labour, fuel, hoses, tools, and accessories and transportation charges for compressor as directed by depratment officers and conducting test by ‘V’ notch method complete for effective well development until clear water is obtained.W 0839

Supply of 200mm dia OD PVC casing pipe 6 kg/cm2 Suitable wall thickness etc complete AS PER IS 12818 / 2010 (TWAD SR SI No 1.1) WD-M0031

4. Labour charges for inserting PVC casing pipes assembly (with slots or withour slots) in the drilled hole including jointing the pipes with PVC Couplers with cement paste etc., complete & supply & packing the annular space with pebbles of size & quality as directed byt the engineer incharge etc complete, For 200 mm dia PVC casing Pipe Assembly (TWAD SR SI No 13 a) WD 0831

Supply and delivery of clear water THREE PHASE SUBMERSIBLE PUMPSET SUITABLE FOR 150MM DIA BOREWELL AS PER IS 8034/2002 WITHOUT PANEL BOARD vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes.The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continous rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 % (Duty - lpm x m 250x125) - WD 1681

Supply and delivery of Star-Delta starter confirming to IS 13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/ Three Phase/50HZ (+/- 5%) and 415V (+/- 10%) including 3 pole magnetic contactor with under voltage release - 3 Nos., CT operated Ammeter (65 mm dia) with suppressed scale, Voltmeter (65mm dia), Voltmeter selector switch Miniature circuit breaker, Thermal Overload relay, Air Break contactors suitable for next Standard higher KW rating, Single phasing preventor, dry running preventor and On/Off Push button switches, wiring with 1 sq.mm/4 sq. mm copper pvc insulated cable, powder coated vermin proof box, including the capacitor (the cost of capacitor is to be taken separately) with Timer facility Twad SOR 11.2

Supply of insulated & sheathed 4 sq.mm 3 core flat type Copper cableof ISI brand - WD 1975

63mm OD PVC pipe 6Ksc

63mm PVC Elbow

50mm GI pipe B class