REPAIR OF RO PLANTS CELARING OF OH TANKS AND CONNECTED WORKS AT BMC AREA UNDER GE (CENTRAL) KOLKATA.

Amount

M&L for quarterly cleaning of RO water storage tank of cap 5000 ltrs with bleaching powder by blocking the inlet/outlet flow from manholes, lifting the excess semi-solid water out of the sump, removing the entire deposited sludge, mud, silt etc scrapping the internal wall/floor with wire brush (to remove deposited scales, mud etc from the walls/floors by using suitable T&P manually from the bottom of the tank) and removing the same at a distance n exc 50m from the site where directed,opening the blocked holes etc before normalising flow complete all as specified and as directed by Engr -in-charge. Note (i) contractor has to pump out the storage water at his own arrangement before cleaning the the tank) (ii) All cleaning should be done on quarterly basis from srl no. 1 to 4.

All as per item No 01 here-in- before but service tank 2000 Ltr capacity

All as per item No 01 here-in- before but service tank 1000 Ltr capacity

All as per item No 01 here-in- before but service tank 500 Ltr capacity

Supply and fixing and testing pressure pump of head range: 6-24 m of capacity 0.5 HP complete all as specified and as directed. Make-Crompton greaves. Model : miniforce II

Taking out of pump from existing position dismantling and repairing of pressure pump of any type up to 0.5 hp capacity rewinding the same with super enamelled copper winding wire as per existing gauge and turn to achieve required RPM, replacement of ball bearing, bush, impeller, connection wire, cooling fan of motor, oiling etc including testing complte all as specified and as directed.

Dismantling the PVC body multigrade filter unit, (NFMG 20) of RO frontal pipe line and valves, un loading the media and cleaning media i.e pebbles, gravels using chemical as approved by manufacturer, replacement of filter media with new one, servicing of multi port valve, Refilling the media as per original complete including topping up and re-installation of unit and testing complte all as specified and as directed. Make : ION Exchange or equivalent as approved in Multitex Engg Note : (i) Fixing and unloading charges shall deemed to be included in the quoted rate. (ii) Spare parts will be measured and paid separately as supply only.

Supply only Multigrade filter mediacomplete all as specified and directed by Engr-in-Charge.

Activated carbon media complete all as specified and directed by Engr-in-Charge.

Iron removal media complete all as specified and directed by Engr-in-Charge.

M&L for overhauling of RO plant of capacity 400/600/1000/2000 LPH opening the pump set from RO, dismantling the parts for inspection, replacement of all u/s parts i.e bushes bearing impellers, rewinding of 2/3 HP, 3 phase motor winding and replacement of viltroli coupling shaft seal complete to build up the pressure for smooth functioning of RO plant complete all as specified and directed by Engr-in-Charge. Note : (i) Chemical analysis Lab test : (1. TDS 2. PH 3. Micro biology (ecoly / coliform count) 4. Silica 5. Iron) of RO Plant treated water of various area from Govt. approved laboratory including collection of water in sterillized bottle for testing and submission of the test report (ii) Testing is to be carried out on each plant and once in every qtr

S&F micron catridge capacity 10" slim as in repaircomplete all as specified and direted by Engineer-in-Charge.

S&F in repair micron catridge capacity 20" slim complete all as specified and direted by Engineer-in-Charge.

S&F in repair micron catridge capacity 20" big blow jumbo cartridge complete all as specified and direted by Engineer-in-Charge.

S&F carbon block filter 20x2" including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent .

S&F flow meter of RO plant up to capacity of 1000 LPH including taking down of old unsv one complete all as specified and as directed by Engr-in-charge.

S&F reverse osmosis membrane of cap 10 LPH( 80 gpd) model No. INDRO including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

S&F reverse osmosis membrane of cap 250 LPH model No. INDRO-43 including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

S&F reverse osmosis membrane of cap 500 LPH model No. INDRO-43 including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

S&F reverse osmosis membrane of cap 1000 LPH model No. INDRO-43 including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

Supply only sodium bicarbonate food grade ( Anti chlorine) complete all as specified and directed by Engr-in-Charge. Make : Tata/Enmark

Supply only Corrision inhibitors and Anti sclalant soloution of drinking water complete all as specified and directed by Engr-in-Charge.

Opening top of 10,000 GPH capacity iron removal plant pressure filter, vertical type, unloading the filter media from the pressure filter e.g sand gravels (different sizes), taking out carefully strainer (Push/Thread) from inside bed plate, cleaning the inside bed plate & strainer fixing holes on the bed plate, disposal of sand within 100 metre radius from the existing filter plant, segregate the different sizes of old gravels washing the serviceable gravels by 3% strength HCL, clean the gravels by clear water to remove iron scales on the old gravels cleaning the PVC old serviceable strainer by concentrated hydrochloric acid complete all as directed by Engineer-in-Charge. Note:- (i) Sand and gravels if required to be replaced shall be measured and paid as supply only under relevant items here-in-after. (ii) Chemical analysis Lab test : (1. Turbidity 2. Iron 3. PH 4. Silica ) of IR Plant treated water of various area from Govt. approved laboratory including collection of water in sterillized bottle for testing and submission of the test report (iii) Testing is to be carried out on each plant once in every qtr)

Supply only Coarse sand for filter media (16/32) mesh size

Supply only Gravel 1/4" to 1/10"

Supply only Gravel 1/2" to 1/3"

Supply only Gravel 3/4" to 1"

M&L for replacement of polypropelene strainers rings type of iron removal water treatment plant duly after taking out existing wornout one complete all as specified and directed.

Opening top cover by unscrewing the bolts of 10,000 GPH softening plant, unloading the cation resin from upper portion of softening plant, keeping the resin bed at stable condition at triangular park complete all as specified and directed. Note : (i) Chemical analysis Lab test : (1. Hardness 2. Iron 3. PH 4. Silica ) of Softener Plant treated water from virious area from Govt. approved laboratory including collection of water , sterillized bottle for testing and submission of the test report (ii) testing is to be carried out on each plant and once in every qtr is inclusive of coated rate)

Supply & loading of cation resin after taking down old unserviceable one in the existing softening plant complete all as directed.

Supply and replacing MNO2 inside oxidation chamber at different location including taking out old one complete all as directed.

M&L for painting with one coat of black bituminous paint suitable for drinking water inside the vessels complete all as directed by Engr-in-Charge.

Supply only common salt for controlling of hardness of water of approved quality at water treatment plant complete all as directed. Note : Transportation charges of qty as required to water treatment plant located at Hasting area will be included in the item rate.

M&L for repairing of TDS meter of RO plant capcity 1000/2000 LPH display flow rate incl TDS, pH etc from oem complete all as specified and as directed by Engr-in-charge.

Dismantling of high pressure single head adjustable gear motor of chemical dosing pump and separating the unserviceable parts cleaning the serviceable parts, re-assembling including replacement of old unserviceable parts complete all as specified and directed. Note:- Spare parts will be measured and paid separately as supply only.

S&F heavy duty PVC pipe of suitable size to with stand 5KG/Cm 2 pressure suitable for decrine dozing pump to rising mains including taking out existing unserviceable one complete all as specified and directed.

Supply only ring seal valve for Decrine dosing Pump including taking down unserviceable onecomplete all as specified and directed.

Supply only foot valve assembly suitable for decrine dosing pump including taking down unserviceable valve complete all as specified and directed.

Supply only dia phram valve for DDP including taking out the old unserviceable one.complete all as specified and directed.

Supply only discharge valve for decrine dosing pump including taking down unserviceable one complete all as specified and directed.

Supply only stablised sodium hypocholrite disinfectant for water treatment packed in 25 KG plastic Drum complete all as specified and directed.

S&F reverse osmosis UV light cap 1000 LPH including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

S&F reverse osmosis micron cartiridge Model No INDOR 403 complete including taking down existing worn out ones complete all as specified and directed Make ION Exchange/multitex Engg or equivalent Note Micron cartiridge will be change in every two month

S&F reverse Osmosis memberane Model No INDOR-403 including taking out existing wornout/chocked reverse osmosis membrane complete all as specified and directed Make: Hydronatics/ION Exchange/Multitex Engg or equivaent

Supply and replacement of PVC body multiport valve, 32mm dia complete all as specified and directed Make: ION Exchange or equivalent

S&F of HDPE/PVC strainer inside the multigrade, iron removal softening plant as per existing including taking down old unserviceable one.

S&F 32mm bore UPVC pipe lincluding taking down old unserviceable one complete all as specified and directed by Engr-in-Charge

S&F 50mm bore UPVC pipe lincluding taking down old unserviceable one complete all as specified and directed by Engr-in-Charge

S&F 32mm bore UPVC Elbow as per existing at stie including taking down old unserviceable complete all as directed.

S&F 32mm bore UPVC Tee as per existing at site including taking down old unserviceable complete all as directed.

S&F 32 mm bore UPVC MT as per existing at site including taking down old unserviceable complete all as directed.

S&F 32/40 mm bore UPVC Union as per existing at site including taking down old unserviceable complete all as directed.

S&F 32mm bore UPVC socket as epr existing at site including taking down old unserviceable complete all as directed.

S&F 32/40 mm bore UPVC Bush as per existing at site including taking down old unserviceable complete all as directed.

S&F 32 mm bore UPVC ball valve as per existing at site including taking down old unserviceable complete all as directed.

Repairs Panel board for pump of any size/ any type by disconnecting and taking out old unserviceable wires and spare parts and rewiring the same with same size of copper wire, replacment of nut & bolts with washers, painting with one coat of synthetic enamel paint of existing colour including necessary preparation of surfaces including testing and commisioning complete all as specified & directed by Engr-in-Charge. Note:- Any other Electrical fittings connecting to panel board rate quated under this items.

M&L for PCC (1:4:8) type D-2 using 40mm graded stone aggregate as in foundation base of pvc water tank/path/platform and other similar locations all as specified & directed including demoltion of old PCC/broken PCC

M&L for PCC (1:3:6) type C-2 using 40mm graded stone aggregate with and including all necessary form work complete all as specified & directed.including demoltion of old PCC/broken PCC

M&L for PCC (1:2:4) type B-1 using 20mm graded stone aggregate as in PVC water tank/CI pipe line suporting and other similar location etc with and including all necessary form workand plastering complete all as specified & directed including demoltion of old PCC/broken PCC.

Cutting & Chasing required on concrete block /path tile /floor/ wall not exceeding 10 cm girth to concealed the cable/GI wire and making good to disturbed surface with cement mortar 1:3 including facing / finishing where as required to match with existing surfaces complete all as specified and directed.

Material and labour Preparation of old painted surface of existing for scraping painting with one coat of Red oxide /black/ white/ Sky blue paint suitable for raising /distribution CI /GI pipeline/ including pump motor etc complete all as directed by Engr-in-Charge.

M & L for glow sign board alongwith joy pipe bracket, accessories and supply and fixed 0.20mm thick white rubber coated vinyl or synthetic viny 1 sheet painted with scotch/computer inject printing with out door ink and with 300x720 DPI and also 140 DPI laminated with average 0.15mm high quality weather protected with chemical and including 1.5mm thick poly carbonated PVC milky/transparent sheet drawing art work computer designing including 22 SWG sheet frame work arrangement for fixing LED tube light fittings 1 no/sqm incl connection with 1.5 sqmm single core copper conductor cable and 50mm dia light grade pipe 3 RM x 2 nos duly grouted in ground 0.8 m deep in PCC/ fixing on top of the gate incl all arrangement & T&P required and testing complete all as specified and as directed.

Maint and Repairing of pressure pump of any type up to 0.5 hp capacity.

Material and labour Preparation of old painted surface of existing for scraping painting outer with one coat of Red oxide,black, white, Sky blue paint suitable for Iron removal plants, pressure filter and oxidation chambers etc complete all as directed by Engr-in-Charge.

De-watering of existing RCC OH water tank size 100000 Gln capacity at 80 feet staging cleaning the overhead tank with wire brush,cloth ,bleaching powder,removing alll dirt scale from tank and from mouths of circulating pipes etc through drain pipe or by manually including writing with white paint in tank wall as "TANK CLEANED ON" with date ,month and year with a minimum 10 CM height capital lettrs/numbers and conducting all connections (if any) after cleaning and testing at different multi-storeyed buildings at BM camp complete all as specified and directed by Engineer-In-Charge.(a) To drain out the water by using exit valve or our own high capacity dewatering system. (b) Cleaning all the algae formation insied the tank by using TERBAC G5 a laboratory tested branded chemical of the company and scrubbing the walls of the tanks.(c) Fresh water cleaning by high speed jet pump (d) first bacteria screening is desertification by using TERBAC G5 a govt laboratory certified branded halogen compound. (e) Cleaning of the floor of the water tank by industrial vacuum cleaner. (f) The second bacteria screening and sterlizing method by using ultra violet ray with in the tank and kills all suspended bacteria. (g) Cleaning the third bacteria screening and sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agent TERBAC G65.

M&L for water quality test reports for Physical/chemical/batrorigical test every QE to Collecting of water sample for testing form main water receiving of UG sump at BMC pump house at BMC and special sterilized container and submitting to Govt. approved test laboratory as per IS 10500 quality of water suitable for human consumption or not is to be menttioned in microbiological water test report. Note : Quarterly Testing shall be carried out in a Govt approved testing centre all as directed by Engr -in- charge

Cleanning of PVC water tank of capacity exc 500 ltrs & n.exc 1000 ltrs by taking down existing inlet and outlet pipes setting aside the tank and cleaning rubbing down and removing all scales and dirt mud and any other foreign materials etc from inside and outside the tank with bleaching powder and refixing the tank in its original position and inlet outlet pipe including writing letter on PVC tank as 'TANK CLEANED ON---------'complete all as specified and directed by Engr-in-charge.

All as per item No 67 here in before but capacity from 1000 to 2000 Ltrs

All as per item No 67 here in before but capacity from 2000 to 5000 Ltrs

M&L for moulded polyethylene water sotrage tanks 3 layers (cylindrical vertical with close top) hoisted and fixed in position after taking out old us tanks of capacity 500 ltrs all as specified and directed.

All as per item No. 70.00 here in before but of capacity 1000 ltrs

All as per item No. 70.00 here in before but of capacity size 2000 ltrs

Supply and fix in replacement reverse osmosis pressure pump of cap 100 LPH complete all as specified and directed.

All as per item No.73.00 Here -in- before but for Cap 60 LPH.

All as per item No. 73.00 Here -in- before but for Cap 40 LPH.

All as per item No. 73.00 Here -in- before but for Cap 30 LPH.

S&F in repair multiple valve of capacity 25/40mm for RO plant including taking down old unsv one complete all as specified and directed by Engr-in-Charge. Make : Ion exchange/Hydronatics/ion exchange/Multitex engg or equivalent.

EAST COAST STANDARD PRODUCTS

EASTERN REFRIGERATION AND ELECTRICAL CO