REPAIR MAINT OF IRP SOFTENING PLANT RO PLANT SEWAGE PLANT AND LT PANELS IN SEWAGE INSTALLATIONS AND OTHER CONNECTED WKS IN KOLKATA AREA UNDER GE NORTH KOLKATA

Amount

Opening top cover of manhole and side hand hole of 10000 GPH capacity vertical type iron removal plant and unloading the filter media eg. sand, gravells (different sizes) and taking out carefully strainer (push/thread) from inside bed plate and disposal of UNSV filter media(sand, gravel, strainer etc) within 100 mtrs radius from the existing plant complete all as directed. (Location : Salt Lake, Bagjola & Dakshineswar)

Opening top cover of manhole and side hand hole of 5555 GPH capacity vertical type iron removal plant and unloading the filter media eg. sand, gravells (different sizes) and taking out carefully strainer (push/thread) from inside bed plate and disposal of UNSV filter media(sand, gravel, strainer etc) within 100 mtrs radius from the existing plant complete all as directed. (Location : Salt Lake & Dakshineswar)

Opening top cover of manhole and side hand hole of 10000 GPH capacity vertical type softening plant, unloading the filter media eg. rasin,sand, gravells (different sizes) and taking out carefully strainer (push/thread) from inside bed plate and disposal of UNSV filter media(sand, gravel, strainer etc) within 100 mtrs radius from the existing plant and keeping safe custody of serviceable resin for reuse complete all as directed. (Location : Salt Lake, Bagjola & Dakshineswar)

Opening top cover of manhole and side hand hole of 5555 GPH capacity vertical type softening plant, unloading the filter media eg. rasin,sand, gravells (different sizes) and taking out carefully strainer (push/thread) from inside bed plate and disposal of UNSV filter media(sand, gravel, strainer etc) within 100 mtrs radius from the existing plant and keeping safe custody of serviceable resin for reuse complete all as directed. (Location : Salt Lake & Dakshineswar)

Dismalting cover, pipe lines by taking out/cutting the old rusted MS bolt nuts and washers, neoprene rubber gasket etc of oxidation chamber, taking out manganese Dioxide (MNO2) and removing the same within 100m radius from the existing plant, andCleaning, scrapping the inner periphery and external old rusted iron surfaces of oxidation chamber, flushing with fresh water drying and applying two coats of anti corrosive black bituminous paint over a coat of red oxide primer in inner periphery suitable for potable water,and painting with two coats of synthetic enamel paint over a coat of red oxide primer,on outer surface including writing of type of installation in white colour and MES No in dark red colour complete all as directed. Make of paint:- Asian / Berger / Johnson & Nicholson / Shalimar.

Cleaning and scraping the inner periphery and outer surfacse of IRP/ softening plant vessel of capacity 10000 GPH by using wire brush and flushing with fresh water, drying and applying two coats of anticorrrosive bituminous paint over a coat of red oxide primer used in potable waterin inner periphery and painting with two coats of synthetic enamel paint over a coat of red oxide primer on outer surface including writing of type of installation & capacity by synthetic enamel paint of white colour and MES No in dark red colour complete all as directed. Make of paint:- Asian / Berger / Johnson & Nicholson / Shalimar.

Cleaning and scraping the inner periphery and outer surfacse of IRP/ softening plant vessel of capacity 5555 GPH by using wire brush and flushing with fresh water, drying and applying two coats of anticorrrosive bituminous paint over a coat of red oxide primer used in potable waterin inner periphery and painting with two coats of synthetic enamel paint over a coat of red oxide primer on outer surface including writing of type of installation & capcity by synthetic enamel paint of white colour and MES No in dark red colour complete all as directed. Make of paint:- Asian / Berger / Johnson & Nicholson / Shalimar.

Supply and fix new polypropylene strainers double deck type for IRP vessel etc complete all as specified and directed. Make- ION Exchange / RMCO

Supply and fix new polypropylene strainers double deck type for water softening plant as per the existing specification complete all as specified and directed. Make- ION Exchange / MEI / RMCO

Supply and loading the new graded gravells of different size (gravel of size 15" x 1", pebbles of size 1"x1/2",core silex of size 1/2" x 1/4" , fine silex of size 1/4" x 1/8") inside the pressure filters at different location complete all as specified and directed. Make : RMCO / Ion exchange

Supply & charging of new filter sand of 10 x40 mesh from baraker layer by layer as per designed layer to the pressure filters at different location complete all as specified and as directed Make : RMCO / Ion exchange

Supply and loading new resin Indian 225 NA type in the softening plant complete all as specified and directed. (Make : Ion Exchange). (Location : Salt Lake, Bagjola & Dakshineswar)

Laying/filling only resin in the vessel of softening plant and complete all as specified and directed. (Note : Old serviceable cation resin obtained from item No 03 shall be reused after cleaning, washing using hydro chloride solution and fresh water complete all as directed. (Location : Salt Lake, Bagjola & Dakshineswar)

Supply and loading MNO2 in the existing oxidation chamber plant complete all as specified and as directed. (Location : Salt Lake, Bagjola & Dakshineswar) Make : RMCO / Ion exchange

Material & labour for nylon wire mesh including tightening by copper wire as required size on IRP softening plant inside including taking out old damaged wire mesh complete all as specified and as directed.

Dismalting of existing MS/CI pipe and fitting of 100 mm bore by opening flange joint cleaning and removing silt, rust by using wire brush and flushing with clean water for both inside & out side of pipes and fittings, painting the outside surface of pipe & fittings with two coats of synthetic enamel paint over a coat of primer and re-fixing in existing position complete all as specified and as directed. (Note : New bolts, nuts & washers shall be measured and paid separately under supply only rate.The labour element required for fixing nut, Bolts & washers is deemed to be included in the unit rate quoted.)

Dismalting of existing 80 mm bore MS/CI pipe & fitting by opening the flange joints, 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 primer and re-fixing in existing position complete all as specified and as directed. (Note : New bolts, nuts & washers shall be measured and paid separately under supply only rate. The labour element required for fixing nut, Bolts & washers is deemed to be included in the unit rate quoted.)

Dismalting of existing 50 mm bore MS pipe & fitting carefully by opening the flange joints, 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 primer and re-fixing in existing position complete all as specified and as directed. (Note : New bolts, nuts & washers shall be measured and paid separately under supply only rate.The labour element required for fixing nut, Bolts & washers is deemed to be included in the unit rate quoted.)

Dismantling of existing 40 mm bore MS pipe & fitting by opening the flange joints, 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 primer and re-fixing in existing position complete all as specified and as directed (Note : New bolts, nuts & washers shall be measured and paid separately under supply only rate.The labour element required for fixing nut, Bolts & washers is deemed to be included in the unit rate quoted).

Taking out & re-fixing after servicing of CI diaphram valve 100 mm dia by using wire brush emery cloth paper, HCL acid and flushing with fresh water both side reassembling & painting the the outer surface & wheel with two coats of synthetic enamel paint complete all as specified and directed. (Note : New bolts, nuts & washers shall be measured and paid separately under supply only rate. The labour element required for fixing nut, bolts & washers shall deemed to be included in the unit rate quoted.)

All as per item No 20 here-in-before but for valve of size 80 mm dia.

All as per item No 20 here-in-before but for valve of size 50 mm dia.

All as per item No 20 here-in-before but for valve of size 40 mm dia.

Supply & fix CI diaphragm valve 100 mm dia both end flanged including taking down old valve complete all as specified and as directed.(Make : Upadhyay/Super/Hazra). (Note : New bolts, Nuts, washers & gasket shall be measured and paid separately under supply only rate.The labour element required for fixing nut, Bolts & washers shall deemed to be included in the unit rate quoted. Make : Zoloto / RMCO/ Upadhay

All as per item No 24 above but for valve of size 80 mm dia.

All as per item No 24 above but for valve of size 50 mm dia.

All as per item No 24 above but for valve of size 40 mm dia.

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 the outer surface handle with synthetic enamel paint over a coat of red oxide primer complete all as specified and as directed.(Note : Nuts along with bolts, washers and gasket shall be measured and paid separately under supply only rate.The labour element required for fixing nut, Bolts & washers shall deemed to be included in the unit rate quoted.

All as per item No 28 above but for valve of size 80 mm dia.

Supply & fix butterfly valve of size 100 mm dia conforming to IS 13095 both end flanged including taking down old valve complete all as specified and as directed. Make : Audco/Upadhya/Crawley & Ray/ Zoloto

All as per item No 30 above but for valve of size 80 mm dia.

Supply & fix PVC 15 mm bib tap of PTMT including taking out old 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 check valve complete all as specified and as directed. Make : Laxmi/Upadhya/Alto/HM/ Zoloto

Supply only MS bolts, nuts & washers of different sizes suitable for CI/MS flanged pipe & sluice valve etc.complete all as specified and as directed Make:- GKW / Mahendra/ any other reputed make as approved by the GE.

Supply only neoprene rubber gasket for manhole and side hole cover of IRP/Softening plant/oxidation chamber complete all as specified and as directed.

Material & labour for cleaning and removing all scale and dirt, etc, from salt mixing PVC tanks exc 500 Ltrs but not exc 1000 Ltrs and from mouths of circulating pipes, etc complete all as specified & directed

Material and labour for drilling on 100 mm dia MS/CI or GI pipe for fixing of pressure gauge, sampling cock, brass cock, gun metal bush & GI socket etc incl welding work complete all as specified & directed

Material and labour for drilling on 80 mm dia MS/CI or GI pipe for fixing of pressure gauge, sampling cock, brass cock, gun metal bush & GI socket etc incl welding work complete all as specified & directed

Material & labour for Arrow marking indicating flow of water direction by white paint of size length 8" and width 1" on pipe line of IRP/softening plant, oxidation chamber rising main, delivery line & wash out line etc including writing of SMNO/MES NO complete all as specified and as directed. Make of paint:- Asian / Berger / Johnson & Nicholson / Shalimar.

Microbiological, Physical and Chemical testing of water sample collected from various locations from NTH Kolkata or as approved by GE, on quarterly basis alongwith submission of test report complete all as directed.(Note:- Locations- (a) Salt lake (b) Dakshineswar (c) Bagjola (d) 2CBPO (e) ECSD 46 BT Road)

Supply and laying Ductile Iron Pipe spigot & socketed ends, (suitable for Tyton joint), centrifugally cast, type K-7, 100 mm bore in any length, laid in trenches/floor/wall & leakproof jointing with existing DI/CI pipe line alongwith accessories fittings like flange, rubber gasket, nut bolts etc. and testing including taking down old U/S CI Pipe complete all as specified and as directed. Make : Electro Steel/TATA

Supply and laying Ductile Iron Pipe spigot & socketed ends, (suitable for Tyton joint), centrifugally cast, type K-7, 150 mm bore in any length, laid in trenches/floor/wall & leakproof jointing with existing DI/CI pipe line alongwith accessories fittings like flange, rubber gasket, nut bolts etc. and testing including taking down old U/S CI Pipe complete all as specified and as directed. Make : Electro Steel/TATA

Excavating in trenches, n. exc 1.5 m wide or n. exc 10 sq m on plan and n. exc 1.5 m in depth for foundation etc and getting out in soft / loose soil for taking out pipe line complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil complete all as specified.

Removing excavated materials not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified.

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 of disturbed surfaces of road/hard standing etc complete all as specified and as directed.

Material and labour in replacement DI fittings for double ended flanged pipe such as bends (any type, any radius) tapers any type, Tee, pieces, collars, caps plugs etc up to 100 mm bore dia DI pipes complete all as specified and as directed. Make : Electro Steel/TATA

Material and labour in replacement DI fittings for double ended flanged pipe such as bends (any type, any radius) tapers any type, Tee, pieces, collars, caps plugs etc up to 150 mm bore dia DI pipes complete all as specified and as directed. Make : Electro Steel/TATA

Material and labour in replacement rubber gasket joint (tyton joint) for ductile iron pipe, up to 150mm bore with all material including testing complete all as specified and directed .

Supply and fix in repairs rubber insertion/gasket 6mm thick for 100mm and 150mm dia pipe joints complete all as specified and as directed

Supply and fix 100 mm bore cast iron sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, 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 including taking down old unserviceable sluice valve complete all as specified and as directed. Make : Zoloto / Upadhay/Leader

Supply and fix 150 mm bore cast iron sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, 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 including taking down old unserviceable sluice valve complete all as specified and as directed. Make : Zoloto / Upadhay/Leader

Supply and fix 100 mm bore cast iron swing type Non Return Valve (NRV) (ISI marked) PN 16 conforming to IS-5312, both end flanged, with bronze body ring, natural hinge pin rubber gasket and fasteners etc. and testing including taking down old unserviceable NRVs complete all as specified and as directed. Make : Zoloto / Upadhay/Leader

Material and labour for brick work with sub class B 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 replacement, making joint test and connect PVC insulated and PVC sheathed flat submersible cable of multistranded copper conductors of size 4 sqmm, 3 core,1100 volt grade complete all as specified and directed. Make : Finolex/Mescab/Polycab

Supply and fixing including connection/ testing and commissioning fully automatic 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 having range 05 to 13 Amps with single phase preventer after taking down the old one complete all as specified and directed. Make : L & T/ABB/Schneider

Taking out non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor of any make from sewage sump from the foundation, decoupling the pump & motor after disconnecting of cable, suction and delivery lines & transportation of pump & motor to workshop and back for necessary repair & replacement of unserviceable parts, including. bolts, nuts, washers, gaskets etc, duly cleaning and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer & reassembling the same including testing, lowering & commissioning of sewage pumping set complete all as specified and directed. NOTE: (i) Spare parts shall be measured & paid separately as supply only under appropriate item. Unit rate against above item shall be quoted accordingly. (ii) Rewinding of motor, if so required, shall be measured & paid separately.

Supply only Cast iron impeller” for non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only Shaft sleeve” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only Shaft 0-40” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only “Gland” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only “Bearing” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only “CI coupling between pump and motor” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Supply only “GM bush” for centrifugal or non clogging centrifugal type Sewage pumping set of capacity 5HP to 7.5 HP with motor complete all as specified and directed.

Taking out non clogging centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor of any make from sewage sump from the foundation, decoupling the pump & motor after disconnecting of cable suction and delivery lines & transportation of pump & motor to workshop and back for necessary repair & replacement of unserviceable parts including bolts, nuts, washers, gaskets etc, duly cleaning and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer & reassembling the same including testing, lowering & commissioning of sewage pumping set complete all as specified and directed. NOTE: (i) Spare parts shall be measured & paid separately as supply only under appropriate item. Unit rate against above item shall be quoted accordingly. (ii) Rewinding of motor, if so required, shall be measured & paid separately

Supply only Cast iron impeller” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only Shaft sleeve” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only Shaft 0-40” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only “Gland” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only “Bearing” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only “CI coupling between pump and motor” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Supply only “GM bush” for centrifugal/ submersible type Sewage pumping set of capacity upto 3HP with motor complete all as specified and directed.

Material and labour for re-winding of motor capacity 5HP to 7.5 HP for non clogging centrifugal type Sewage pumping set with same gauge as per existing and same number of turns of super enamelled solid copper conductor including providing core insulation, heat varnishing, testing complete all as specified and directed.

Material and labour for re-winding of motor capacity upto 3 HP for non clogging centrifugal/ submersible type Sewage pumping set with same gauge as per existing and same number of turns of super enamelled solid copper conductor including providing core insulation, heat varnishing, testing complete all as specified and directed.

Material and labour for rewinding of Air Blower motor of STP upto 10 kw, AC 3 phase, 415 volts with same gauge super enamelled copper cable conforming to existing size including paper separator, cleaning of slots, replacement of insulating materials etc. and varnishing with approved varnish and testing complete all as specified and directed.

Preiodic cleaning/servicing of RO plant of capacity 800LPH by dismantaling of the iron filter/Bag filter/Candle filter, RO membrane, storage tank,flow metre, connected pipe lines etc and proper cleaning and assembling and making fit for use as well as control TDS with in prescribed limit complete all as directed. Note: (i) Location: 2 CBPO. (ii) Any Break down occured to membrane during the contract period to be rectified by contractor with out any extra cost. (iii) Change of any connecting pipes (PVC pipe), NRV nut, Bolts & washers shall deemed to be included in the unit rate quoted. .

All as per Sl Item No:77 above but for capacity 600/500/250 LPH complete all as specified and directed. Note:Location: IWT Dakshineswar-02 Nos & Salt Lake-02 Nos.

Replacement of Mechanical seal of RO plant high pressure pump of capacity 800/600/500/250 LPH complete all as specified and directed.

Repair and servicing of high pressure pump of RO plant of capacity 600/500/250 LPH complete all as specified and directed.

Repair and servicing of high pressure pump for membrane cleaning of RO plant of capacity 800 LPH complete all as specified and directed.

Repair and servicing of membrane cleaning pump of RO plant of capacity 600/500/250LPH complete all as specified and directed.

Cleaning of Sand & Activated carbon filter by taking out old media and charging with new one as per existing ratio for RO plant of capacity 600/250/500 LPH complete all as specified and directed.

Supply and fixing Iron filter for existing model at Salt Lake, Dakshineswar and 2 CBPO of capacity 250/500/600/800 LPH complete all as specified and directed.

Supply only O-ring of any size, nuts, bolts, washers PVC pipes, flexible pipes etc parts and allied consumable items as required during each servicing or RO plant of capacity 800 & 600/500/250 LPH complete all as specified and directed.

Supply and fixing in replacement of Cartriage Filter for RO plant of capacity 800/600/500/250 LPH+ complete all as specified and directed. Make : CSM/Vontron/Maxpure/Taptec

Supply and fix in replacement of Cartriage cover/housing for RO plant of capacity 800/600/500/250 LPH complete all as specified and directed

Supply and fixing Ultra Violet Ray lamp suitable for RO plant of capacity 800/600/500/250 LPH complete all as specified and directed

Supply only chemical of nomenclature AQUACLEAN CVD for cleaning of membrane of RO plant of capacity 800/600/500/250 LPH complete all as specified and directed.

Supply and fixing TDS meter as per existing Model including taking out old meter complete all as directed.

Supply and fixing TDS Sensor as per existing model including taking out old unserviceable sensor of RO plant of capacity 250/500 LPH complete all as specified and directed.

Supply and fixing Floaty as per existing model including taking out old unserviceable floaty of RO plant of capacity 800/500 LPH complete all as specified and directed

Material and labour for re-winding of motor capacity 1HP centrifugal pump set with same gauge as per existing and same number of turns of super enamelled solid copper conductor including providing core insulation, heat varnishing, testing complete all as specified and as directed.

Material and labour for re-winding of motor of high pressure pump set with same gauge as per existing and same number of turns of super enamelled solid copper conductor including providing core insulation, heat varnishing, testing complete all as specified and as directed.

Supply and fixing RO plant Membrane in replacemnet of unserviceable membrane of RO plant of capacity 800/600/500/250 LPH complete all as specified and directed. Make : CSM/Vontron/Maxpure/Taptec (Note : Any defects occurred to the plants during the currency of the contract shall be rectified by the contractor without any extra cost).

JAIN CONSTRUCTION AND ENGINEERS

EAST COAST STANDARD PRODUCTS