REPAIR MAINT OF IRP FILTRATION PLANT RO SOFTENING PLANT SEWAGE TREATMENT PLANT AND OTHER CONNECTED REPAIR WORKS IN KANKINARA AREA UNDER GE (NORTH) KOLKATA

Amount

M&L for general overhauling of 10000 gallon IRP plant and oxidation chamber by opening/ de-asembling the plant including replacement of worn out parts if required (which shall be measured and paid separately as supply only) washer (GI), nuts, bolts and other minor parts not specifically mentioned shall also be replaced where required for proper functioning of IRP plant complete all as specified and directed.

Removal of filter media complete from mild steel shell of iron removal plant 10000 GPH of dimension 2.25 metre dia and 1.5 metre height and pressure filter complete all as specified and directed.

M&L for Scraping, de-scaling cleaning external surfaces of mild steel shell with necessary prepration of surfaces on external surface of iron removal plants and oxidation chamber including pipeline complete all as specified & directed.

M&L for Scraping, de-scaling cleaning internal surfaces of mild steel shell with necessary preparation of surfaces on internal surface of iron removal plant and oxidation chamber complete all as specified & directed.

Supply only MnO2 compound as filter media of iron removal plant of existing type complete all as specified & directed.

Supply and incorporation of GRAVEL and sand' as filter media of iron removal plant of existing type and size complete all as specified & directed. (Note:- Gravels of following size to be poured as filter media:- 1/2” x 3/4”, 1/2” x 1/4”, 1/4” x 1/8”, 1/8” x 1/16”, 20 x 40 mesh sand, 10 x 20 mesh sand. Quantity to be incorporate as per direction of Engr-in-Charge.)

Supply & fixing PVC strainers double nut type as per sample provided for iron removal plant /pressure filter and taking out old u/s one complete all as specified & directed.

S&F in repair pressure guage 100 mm dial, 0-7 Kg/cm² pressure, with fittings for iron removal plant of existing type, complete all as specified & directed.

M&L for preparation and painting of 10000 gallon IRP plant (inside) with black bituminous paint over one coat of red oxide primer zinc chrome primer and (outside) with two coats of synthetic enamel paint over one coat of red oxide zinc chrome primer complete all as specified and directed.

Dismantling of exiting MS/ CI/ DI pipe and fitting of 100/80mm bore by opening, joint cleaning and removing silt, rust by using wire brush and flushing with clean water for both inside & outside of pipes and fittings, painting the outside surface of pipe & fittings with two coats of synthetic enamel paint over a coat of red oxide primer and re-fixing in exiting position complete all as specified and directed.

Taking out & re-fixing after servicing of butterfly valve of size 100 mm dia by using wire brush emery cloth paper, HCL acid and flushing out fresh water, painting the outer surface handle with synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

Supply and fix 100 mm bore cast iron butterfly valves, (ISI marked) conforming to IS-13095-2020 both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable butterfly valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader/ Audco/RMCO or as per exisiting make.

Supply & fix PVC 15 mm bib tap of PTMT including taking out old unserviceable bib tap complete all as specified and as directed. Make - Prayag / Polytuf/M/S Sak Plast Pvt Ltd.

Supply & fix gun metal horizontal check valve 20 mm dia including taking out old unsv check valve complete all as specified and as directed. Make : Zoloto/Venus/Upadhyaya.

M&L for cutting hard standing /road for laying of pipe complete all as specified and as directed.

Material and labour for PCC (1:3:6) type C-2 (using 40 mm graded aggregate) for filling and making good to disturbed surfaces of road/ hardstanding etc. complete all as specified and as directed.

Material and labour for brick work with bricks class designation 75, old size, straight or curved on plan exc 6m mean radius built in cement mortar (1:4) complete all as specified and as directed.

Supply, and fix in repair, making joint test and connecting PVC insulated and PVC sheathed flat submersible cable of multistranded copper conductors of size 4 sq mm, 3-core, 1100 volt grade complete all as specified and directed.

Supply and fixing including connection/ testing and commissioning direct on line type motor starter AC 3 Phase 415 Volt 50 Hz enclosed in steel sheet enclosure suitable for 5 to 7.5 HP motor with single phase preventer after taking down the old unserviceable one complete all as specified and directed. Make : L&T/Havells/C&S/Schneider

Taking out wet type sewage pumping set of capacity of 4 HP/ 5 HP (vertical turbine pump) from sewage sump alongwith ERW column pipe and transporting to work shop for repair, dismantling the wet type sewage pump (vertical turbine pump) of any make and assessing to the extent of repair, cleaning,overhauling, greasing etc, replacement of spares and reassemble including minor parts like nuts, bolts washers etc duly painted with black bituminous paint on column pipe and one coats of synthetic enamel paint, including preparation of surfaces and transporting from workshop to site after complete repair, reinstallation of the pump, testing and commissioning complete all as specified and directed. Note:- (i) The spares shall be paid separately, under appropriate items as supply only. The labour component involved in replacing spares is deemed to included in the quoted rate. (ii) Rewinding of motor, if so required, shall be measured & paid separately.

Supply only Bush for motor for sewage pumping set of 4 HP/5 HP pump set complete all as specified and directed.

Supply only bearing for pump for sewage pumping set of 4 HP/5 HP pump set complete all as specified and directed.

Supply only pump shaft stainless steel for sewage pumping set of 4 HP/ 5 HP pump set complete all as specified and directed.

Supply only Shaft sleeve stainless steel for sewage pumping set of 4 HP/5 HP pump set complete all as specified and directed.

Supply only pump impeller bronze for sewage pumping set of 4 HP/5 HP pump set complete all as specified and directed.

Material and labour for re-winding of electrical motor pump non clog set 4 HP/5 HP, 3 Phase 415 volts with super enameled copper winding wire conforming to existing gauge /size and turn including paper separator cleaning of slots ,replacement of insulating and varnishing with approved varnish and testing on completion complete all as specified & directed.

M&L for servicing of Electrical Panel board including cleaning the panel checking all wires, contactors, MCB, MCCBs, starter, relay, tightening the loose connections, replacement of burnt wires, thimbles/lugs, connectors, LED indicators etc complete all as specified and directed. Note: Major parts like MCCB, Contactors, relays shall be measured in respective items taken as supply only:- Make:- L&T or equivalent in C&S/Legrand

Materials & labour for earthing complete with galvanized earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to Galvanised earth lead wire 4 mm dia by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing for watering to earth electrode, earth strip connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and directed.

Materials & labour for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing for watering to earth electrode, earth strip connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and directed.

Material and labour for repairing/servicing of alum dosing unit of IRP plant including changeable spares and connecting as per existing complete all as specified and directed.

Material and labour for repairing/servicing/painting of motor of air compressor of IRP plant including changeable spares and connecting as per existing complete all as specified and directed.

Repairs and servicing of high pressure single head gear motor adjustable dosing pump electrically controlled 230 volt, 50 Hz, single phase, continuous rotor type,including striping out the burnt winding and rewinding with super enameled copper winding wire of the same gauge varnishing and drying, re-erecting, testing and commissioning, including replacement of DE and NDE bearings / bush shaft seal, any other minor parts required for proper functioning, painting the set with two coat of synthetic enamel paint after preparing the surface complete all as specified and directed.

Supply only High strength Calcium based granular chlorination chemical of specifications of approved make from the zonal chief, duly approved by the GE complete all as specified and directed.

Supply and fixing in replacement of V belt suitable for high pressure pump for washing the vehicle model no. C104 complete all as specified and directed.

Supply only hydraulic engine oil for high pressure pump for washing the vehicle complete all as specified and directed. Make : HP,ENKLO-68 /castrol/valvoline/HP.

Repairs and servicing/ Maintenance of high pressure triplex/ quintuplex plunger pump model no.HNT-HP/3850/38 pumping set and 3 phase induction motor of capacity 30 HP, having a discharge of 60 LPM at a discharge pressure 150 kg /Sq cm with 293 stroke/minute having 3 Phase 415 volts, AC, 50 HZ, cleaning the inside of startor, rotor, varnishing and drying, re-erecting, testing and commissioning, including replacement of DE and NDE bearings, shaft seal, NRV spring, any other minor parts required for proper functioning, painting the set with synthetic enamel paint after preparing the surface, etc complete all as specified and directed.

Dismantling and servicing of the electric connection from the induction motor and taking down the motor upto 30 HP after removing the necessary nuts/ bolts and coupling etc and transporting to local workshop and Dismantling and opening the AC motor by unscrewing the bolts / nuts end cover etc ncluding necessary cleaning thoroughly with a wire brush and drying and applying a coat of varnish etc all as specified and including material and labour and applying appropriate varnish dirying replacement of bearings 2 Nos and properly assembling including testing and transporting back to the Pump House , assembling the motor carefully to its original position including necessary electric and other connections and testing to the satisfaction of Engineer-in-Charge complete all as specified and directed.

Repairs and servicing of Low pressure centrifugal pump set with 3 phase induction motor of capacity 10 HP for washing equipment having a discharge of 450 LPM at apressure of 5 kg/sqcm ,cleaning the inside of stator, rotor, varnishing and drying, re-erecting, testing and commissioning, including replacement of DE and NDE bearings, shaft seal, any other minor parts required for proper functioning, painting the set with two coat of synthetic enamel paint after preparing the surface all as specified and directed.

Repairs and servicing of Centrifugal Monoblock pump set, KDS type, driven by Squirrel cage induction motor, TEFC, 3 Phase 415 volts, AC, 50 HZ, 3 HP,including varnishing and drying, re-erecting, testing and commissioning, including replacement of DE and NDE bearings, shaft seal, any other minor parts required for proper functioning and installation in same position all as specified and directed.

S&F gland packing of required size of gland of superior quality to centrifugal / monoblock pumps of 30 HP pump set capacity , etc complete all as specified and directed.

Supply and fixing in repair to pump tube of model no.RPQ40HD as per existing complete all as specified and as directed.

Supply and fixing in repair of suction/discharge tubing 3/8" as per existing complete all as specified and directed.

Supply and fixing in repair of Dosing injector valve 3/8" as per existing complete all as specified and directed

Supply and fixing in repair of weighted suction line strainer (foot valve) 3/8" as per existing complete all as specified and directed.

Supply and fixing in repair of steel wire rope of size 10 mm for holding the pump complete all as specified and directed.

Supply and fixing in repair on load changeover switches 4 pole 200 A (in sheet steel type) suitable for LT panel pump houses complete all as specified and directed. Make : C & S/ HPL/ Bentec/ Indoasian/ Havells

Material and labour for cleaning of underground sewage water tank of dimension radius 1.5 metre and depth 5 metre ( internal) dewatering, cleaning and desludging the sewage water sump by manually digging out and lifting of concentrated sludge, mud from bottom of the tank and depositing 50 away where directed at a level not exceeding 1.5 metre complete all as specified and directed.

S&F in repair MK1 power contactor 4 pole suitable for 6 HP submersible pump complete all as specified and directed.

S&F in repair Electronic Motor Protection relay from over load, single phasing, under current protection complete all as specified and directed. Make : L&T - MPR200nX or equivalent in Schneider/ C&S

S&F in repair Liquid level controller against dry run and prevents over filling complete all as specified and directed. Make: GIC Cat No. 44s0003 or equivalent in L&T/C&S

S&F connecting, testing and commissioning submersible pump controller conforms to IEC 60947-4-1 AC 3 Phase, 415 V, 50 Hz, enclosed in steel enclosure suitable for 6 HP motor including taking down old unserviceable controller complete all as specified and directed. Make: L&T Cat No. MU-G6 or eqivalent in C&S/ ABB/ Siemens

S&F in repair, making joint test and connect PVC insulated cable of multistranded copper conductors of size 10 sqmm, 4 core, 1100 volt complete all as specified and directed.

S&F in repair jumbo micron cartridge as per existing complete all as specified and directed.

Supply and installation in repair of 1000 lph RO membrane 8040 as per existing complete all as specified and directed.

Supply and installation in repair of 1000 lph RO pressure tube as per existing complete all as specified and directed.

M&L for MnO2 compound, filter media, activated carbon, treated sand for 1000 lph RO plant of existing type complete all as specified and directed.

M&L for rewinding of motor of capacity 1.5 HP for RO pump with same gauge as per existing and same number of turms of super-enamelled solid copper conductor including providing core insulation, heat varnishing, testing complete all as specified and directed.

EASTERN REFRIGERATION AND ELECTRICAL CO (BID ID -3116249)

EAST COAST STANDARD PRODUCTS (BID ID -3116426)