REPAIR/REPLACEMENT OF EXTERNAL WATER SUPPLY PIPE LINES, VALVES, PUMPS AND CONNECTED WORKS AT ALWAYE AREA AND AT NAE NEDUMBASSERY UNDER AGE B/R ALWAYE.

Amount

Excavation in trenches not exceeding 1.5 Metre wide and not exceeding 1.5 Metre in depth and getting out in soft/loose soil ffor foundation, laying of pipes, cables or for shafts, wells, cesspits, manholes, pier holes, etc, not exceeding 10 sqm on plan and not exceeding 1.5 metre in depth complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick in soft/loose soil complete all as specified and directed.

Removing excavated material (soil) to a distance not exceeding 50 Metre and depositing where directed at a level not exceeding 1.5 Metre above the starting point complete all as specified and directed.

Supply, laying and testing ductile iron pipe flanged 150mm bore spigot class K-9 as per IS-8329 with inside cement lined complete with nut, bolts, packing etc, including dismantling old one complete all as specified and directed.

Ditto all as per Serial No 4 but for 100 mm dia bore

Supply and laying in repair of CPVC Schedule 40 pipes & plain CPVC Schedule 80 fittings laid in trenches fixed to walls/floors and jointed with CPVC primer & solvent cement for 100 mm inner dia including dismantling old one complete all as specified and directed.

All as per Serial item No 06 but for inner dia 75mm Complete.

Supply and laying of 50 mm outer dia bore CPVC pipes SDR 13.5 & Plain CPVC SDR 11 fittings in trenches/wall/floors including dismantling old one complete all as specified and directed.

All as per Serial Item No 8 but for 40 mm dia bore

All as per Serial Item No 8 but for 25 mm dia bore

All as per Serial Item No 8 but for 20 mm dia bore

Supply and Fixing 500 litres capacity Rotational moulded polyethylene water storage tanks (ISI marked) (Cylindrical vertical with closed top) hoisted & fixed in position including taking down the unserviceable old one complete all as specified and as directed.

All as per Serial Item No 12 but for 1000 litres capacity.

All as per Serial Item No 12 but for 2000 litres capacity.

Supply and fix in repair Ball brass valves, high pressure 25mm with polythene float and fly nut complete, screwed for iron pipe or brass ferrule and fixed complete all as specified and directed.

All as per Serial Item No 15 but for 20 mm dia bore float valve

Repairs to CI Sluice valves flanged type 150/100/80/65mm dia by taking down worn out unserviceable gland sleeve, check nut spindle, gate etc. and cleaning the valve by removing all the scales and reassembling the valve with new packing nut and bolts complete all as specified and directed.

Material and labour for plain cement concrete 1:2:4 type B1 (using 20mm graded stone aggregate) as in road cutting, supporting for pipes etc complete all as specified and as directed.

Supply and fix in repairs CPVC Ball Valve of size 20 mm dia screwed both ends or flanged both endssuitable for CPVC pipe including necessary fittings and taking down old one complete all specified and directed.

All as per Serial Item No 19 above but of size 25 mm dia.

All as per Serial Item No 19 above but of size 40 mm dia.

All as per Serial Item No 19 above but of size 50 mm dia.

Disconnecting of electric supply from star delta starter of defective centrifugal pumping set and taking out pump set with 5 to 30 HP motor from foundation and reassembling of complete motor and fixing with pump set and testing complete at site, jointing, welding, turning and polishing to pump shaft any size CI/GM impeller CI Bowl, making key with key way & other replacement of worn out parts with new including lathe work & any type of machine work required at site including replacement of nut, bolts, rubber gasket and reassembling pump set complete after repair, connecting, testing and including transportation complete all as directed.

Material & Labour for rewinding of centrifugal motor stator of 5 to 10 HP with super enameled insulated copper wire as per existing gauge with other winding material including cleaning of stator, slots, replacement of defective components and parts complete all as directed.

All as per Serial Item No 24 above but for centrifugal motor of capacity 12 to 30 HP

All as per Serial Item No 24 above but for Submersible motor of capacity 15 HP.

All as per Serial Item No 24 above but for Submersible motor/Mono block motor of capacity up to 2 HP complete.

Material & Labour for replacement of bearing for centrifugal pump set motor capacity up to 30 HP complete.

Material & Labour for replacement of Pump shaft of stainless steel for centrifugal pump set motor capacity up to 30 HP complete.

Material & Labour for coupling complete with key for motor pump for centrifugal pump set motor capacity up to 30 HP complete.

Material & Labour for replacement of bronze impeller suitable for centrifugal pump set motor capacity up to 30 HP complete.

Material & Labour for motor bush of gun metal upper & lower including fittings for centrifugal pump set motor capacity up to 30 HP complete.

Material & Labour for replacement of bearing suitable for centrifugal pump set motor cap up to 30 HP complete.

Supply & Fix in replacement air valve brass suitable for centrifugal pump set motor cap up to 30 HP complete.

Supply and fix in replacement of fully star delta starter with single phase protection features in sheet steel enclosure type MN motor rating AC 415 Volts, 50 Hz, 3 phase of capacity 15 to 30 HP complete.

All as per Serial Item No 35 above but for 5 HP to 10 HP.

Supply and fix in replacement ofDOL starter with single phase protection features in sheet steel enclosure type MN motor rating AC 415 Volts, 50 Hz, 3 phase of capacity 5 HP complete.

Supply & Fix in repair CI foot valve of 100 mm dia confirming to IS:4038 complete fixed on suction pipe of pump complete all as directed.

All as per Serial Item No 38 above but for 150 mm dia bore.

All as per Serial Item No 38 above but for 50 mm dia bore.

Supply and fixing up to 150mm dia bore DI/CI special such as bends, tees collars tail pieces confirming to IS-9523 flanged type complete all as specified and directed.

Cutting of existing cast iron pipe line of up to 150mm bore in position for inserting CI/DI Special such as tees, bend, collar, tail piece etc for fixing of sluice valves/ for branch connection etc, complete all as specified and directed.

Material & Labour for run lead joint including all jointing material for 100 mm bore cast iron spigot & socketed pipe and fittings including burning out old leaking lead joints in position and removing old lead complete all as specified and directed. (Earth work shall be measured and paid separately).

All as per Serial Item No 43 above but for 150 mm bore pipe.

Supply and fixing Non return valve of size 150 mm dia 1.6 PN completed confirming to IS: 1969 double flanged and drilled including bolts, nuts, washers, gaskets etc complete and dismantling of old one completed all as directed by Engineer-in-Charge.

All as per Serial Item No 45 above but for 100 mm dia bore.

All as per Serial Item No 45 above but for 80 mm dia bore.

All as per Serial Item No 45 above but for 65 mm dia bore.

Material & Labour for construction of one brick masonry valve pit built in cement mortar 1:6 of size 110cm x 110 cm x 105 cm (internal dimension) over 15 cm thick PCC 1:3:6 type C2 sub base extended all-round 15 cm beyond external edge of brick work including plastering 15 mm thick in cement mortar 1:4 internally and flush pointing to brick wall surfaces externally as work proceeds complete with MS Sheet cover 10 SWG with handle, angle iron frame 40mm x 40mm x 6mm (grouting with anchor fasteners length not less than 15 cm - 04 Nos) Locking arrangement and two coats of Synthetic Enamel paint over a primer complete all as specified and directed. (Rate quoted by the tenderer shall deem to be included the cost of excavation and earth work).

All as per Serial Item No 48 above but for size 90cm x 90 cm x 105 cm (internal dimension).

Supply & Fix cast iron body sluice valve heavy duty class PN 1.6 flanged ends any pattern with head wheels & brass spindle ISI marked confirming to IS-14846 of 2000 for 65 mm bore pipe with jointing material, flanged joints, rubber gaskets 6 mm thick, MS wedge nuts & bolts, washers 10 mm thick complete including dismantling old one complete all as directed.

All as per Serial Item No 51 above but for 80 mm dia bore.

All as per Serial Item No 51 above but for 100 mm dia bore.

All as per Serial Item No 51 above but for 150 mm dia bore.

Supply and fix in repair the holding clamp made of flat iron 100 mm wide and 15 mm for 100/80 mm bore pipe with 04 nos of drilled holes including nut bolts etc complete all as directed.

Supply & Fix Well Cap of iron sheet 6mm thick for 150MM (6 Inch) to 300mm (12 inch) bore pipe with proper shape for submersible cable, column pipes etc including nut bolts, welding work and other fixing materials complete all as directed.

Supply & Fix Float valve ball (set of two balls) of size 250mm dia into Over head reservoir of capacity 15000 to 60000 gallon connected with ceiling rope 2 mm dia of length upto 40 metres with GI Plate indicator hanged along with ceiling rope for indication of water level complete all as directed.

Supply & Fix Bearing type pulley for support and movement of ceiling rope on over head reservoir, 03 Nos for each tank including fixing and connected accessories complete for Over head reservoir of capacity 15000 to 60000 gallon.(at Depot, Ambalapady, & TSK area).

Disconnecting of electric supply from star delta starter of defective submersible pumping set and taking out pump set with 15 HP motor from water body by the help of tripod and chain pulley including submersible cable and other accessories etc and relowering, commissioning and testing the same after repairing of submersible pump set straitening ring, jointing, welding, turning and polishing to pump shaft any size CI/GM impeller CI bowl, making key with key way & other replacement of worn out parts with new including lath work & any type of machine work required at site including replacement of nut & bolt, rubber gasket of column pipe and reassembling pump set complete after repair, connecting & testing all as directed. Note :- (a) Transportation of pump sets from site to workshops and vice versa shall deem to be included in the unit quoted rate. (b) Tools & Plant required at site will be arranged by the contractor.

Supply pea shaped gravel of size 1/8 to 3/8 inches and gravel shrouding in annular space between well and liner assembly required during re-development.

Redevelopment of tube well with air compressor of adequate capacity (not less than 250 Cubic Feet Per Minute) till the availability of sand free clear water, subject to minimum 48 hours of operation of air compressor. (Note: Transportation of compressor and other allied equipment/material to and from the site of tube well is to be deemed in the quoted rates).

Material & Labour for Stabilization and yield testing of tube well by using submersible pump of adequate capacity (subject to minimum of 24 hours of development with submersible Pump) including conduction of sounding test.

Supply and fixing MS heavy duty ISI marked column pipe 80/65 mm bore 3 metre long both ends flanged all as specified and directed by Engineer-in-Charge.

Replacement of single phase preventer of capacity 100 Amps with reverse phase/ single phase/overload protection all as specified and directed by Engineer-in-Charge.

Material and labour for cleaning inside RCC Over Head tank of 20000 Litres capacity (at TSK) by removing dirt, sediments, stilts, algae etc from internal bottom and wall surfaces of tank using suitable brushes, applying bleaching powder and other cleaning agents as required and applying two coat of lime wash inside surface, including writing capacity of tank and date of cleaning and next due date of cleaning on outside the tank using synthetic enamel paint and removing of creepers and bushes over the OH tank and perimeter of the OH Tank Including all Scaffolding works or any other tools/material required at site complete all as specified and directed by Engineer-in-charge.

All as per Serial item No 65, but for OH Tank of capacity upto 60000 gallon at Ambalapady & NAD Depot complete all as specified and directed by Engineer-in-charge

All as per Serial item No 65, but for Under Ground Sump of capacity 20000/25000 Litres at Ambalapady-1, TSK-1, Ayudh Vihar-02.

All as per Serial item No 65, but for Under Ground Sump of capacity 50000/60000 Litres at Ambalapady-1, Depot-1, Ayudh Vihar-01 & NAE- 01.

All as per Serial item No 65, but inside the HDPE/AC tanks of 5000 Litres capacity. NOTES For serial item No 65 to 69:- (a) Cleaning will be carried out twice during the entire contract period after completion of 6 months from the first cleaning. (b) After cleaning twice, the quantity will be measured as one Each Job.

Material and Labour for applying synthetic enamel paint with one coat of painting of approved colour to overhead reservoir iron stairs/railings etc including connected accessories as per instruction complete including preparation of old painted surface complete all as directed by Engineer in Charge.

Servicing of tank Model No. VST 1006 net capacity 100 litres of FRP dosing tank top dia 540mm x bottom dia 480mm x height 575mm consisting of the following, (a) Water inlet line. (b) Dosing pump inlet arrangement. (c ) Drain (d) Overflow (e) Level gauge (f) Inspection port (g) Agitator 120 watt 900 RPM single phase flange mounted motor with plastic shaft and impeller. (h) Provision of mounting pump on lid/wall.

Supply & Fix tank lid (HDPE) of capacity 1000 Litres with suitable sizes of hinges.

Sampling and testing of water for the confirmation of Desirable/Permissible limit of following requirements for "DRINKING WATER" as per IS: 10500-1991 from Govt approved laboratory including transportation of water from site to lab complete all as specified and directed. (a) Bacteriological requirements: Testing of Coli form organisms/100ml (b) Chemical requirements: Testing of colour Hazen Unit Max, Odour, Taste, Turbidity NTU Max, pH Value, Total Hardness (as CaCO3) mg/l max, Iron (as Fe) mg/l max. (c) Desirable Characteristics: Testing of dissolved solids mg/l max, Calcium (as Ca) mg/l max, Manganese (as Mn) mg/l max, Copper (as Cu) mg/l max, Magnesium (as Mg) mg/l max, Sulphate (as SO4) mg/l max, Nitrare (as NO3) mg/l max, phenolic compound mg/l max, Mercury mg/l max, Cadmium (as Cd) mg/l max, Selenium (as Se) mg/l max, Arsenic (as As) mg/l max, Cyanide (as CN) mg/l max, Lead (as Pb) mg/l max, Zinc (as Zn) mg/l max, Chromium mg/l max, Mineral oil mg/l max.

Supply & Fix Water pressure gauge for suitable for pumping line as directed by Engineer in charge.

Supplying calcium hypochlorite based granular disinfectant for water treatment, packing in 45 Kgs plastic drums.

Supply, Fixing and testing electrical cable submersible type flat copper 3 core 10 Sqmm with standard conductor PVC insulated and sheathed including jointing material all as directed by Engineer-in-Charge.

All as per item No 76 but of size 4 Sqmm x 3 core

Material & Labour for disconnecting and refixing after repairing of water meter 50 mm to 150 mm dia by lab or OEM Service centre and testing from KWA as per norms. (Note : Rate quoted deemed for any type of repair of water meter, testing, transportation etc including replacement of defective parts)

Supply & Fix in repair Cast Iron Air Valves with two air outlets, 50 mm dia bore and fixing up in cast iron water supply mains.

Material and Labour for applying synthetic enamel paint with one coat of painting of approved colour to Centrifugal motor pump upto 30 HP including connected accessories such as sluice valves (65 mm to 150 mm size),flanges, bends, Pipes etc with marking as per instruction complete including prepration of old painted surface. Note: All pumps/sluice valves/NRV/pipes within pump house premises and connected accessories at One pump house will be measured as one job.

Supply and fixing GI pipe medium grade with necessary fittings in floor /wall/fixed on ceiling of size 100 mm dia complete all as specified

Material & Labour for cleaning and removing all scale and dirt etc, from inside of rotational moulded polyethylene water storage tanks and from mouths of circulating pipes etc of tank size exceeding 250 Litres and not exceeding 500 litres capacity complete all as specified.

All as per item No 82 but for tank size exceeding 500 Litres and not exceeding 1000 litres capacity complete all as specified.

All as per item No 82 but for tank size exceeding 1000 Litres and not exceeding 2000 litres capacity complete all as specified. Note for item No 82, 83 & 84: Cleaning of Tank will be carried out twice during the contract period; Minimum interval of 6 months will be maintained between 1st cleaning and 2nd cleaning. After cleaning twice, quantity will be measured as one Job.

Supply and fix, Ball brass valves, high pressure 50mm with polythene float and fly nut complete, screwed for iron pipe or brass ferrule and fixed complete all as specified and directed.

Supply chlorine test kit with coloured ample, O T Solution and testing items packed in rexine finish wooden box complete all as directed.

Supply & Fix Digital Auto level controller model ALC MK – I including top mounted, non contact ultrasonic level transmitter ( probe unit), level indicating controlling box including system incorporated digital stage level, high & low alarm etc, but without wire from transmitter to controlling box as per our enclosed catalogue sensing range up to 6 metres complete all as directed.

Supply and laying 3 core Shielded copper signal cable 0.75 Sqmm branded materials require for proper and clear signaling all as directed by Engineer in Charge.

Amount of Credit Schedule shall be deducted to arrive the Contract Sum.

M/s S & S Enterprises/ Suresh Shivasankarapillai