SPECIAL REPAIRS AND REPLACEMENT OF OXIDATION CHAMBER AND SOFTNER INCLUDING CONNECTING ITEMS OF WATER TREATMENT PLANT AT INS NETAJI SUBHAS UNDER GE(I)(CGN) KOLKATA

Amount

Taking down old unserviceable Oxidation chamber 18000 GPH Capacity from water filteration plant at INS netaji subhas including all necessary connecting items , pipes and valves, removing concrete foundation complete all as per specified and as directed. Note: (i) Removal and refixing of tin sheet shed and connected items for removing the oxidation chamber is deemded inclusive of quoted rate. (ii) Make good of any damaged suface/pipeline is deemed inclusive of quoted rate. (iii) Diversion/by-passing the pipeline to restore normal supply for in-situ is inclusive of the quoted rate.

Taking down old unserviceable Softner chamber 18000 GPH Capacity including brine tank from water filteration plant at INS netaji subhas including all necessary connecting items , pipes and valves, removing concrete foundation complete all as per specified and as directed. Note: (i) Removal and refixing of tin sheet shed and connected items for removing the oxidation chamber is deemded inclusive of quoted rate. (ii) Make good of any damaged suface/pipeline is deemed inclusive of quoted rate. (iii) Diversion/by-passing the pipeline if required to restore normal supply for in-situ is inclusive of the quoted rate.

Design, supply,installation,testing and commissioning of MS Oxidation Chamber of Capacity 82 m3/Hrs, 18000 GPH, thickness 10 mm for top and bottom cover and 8 mm for vertical portion with anti corrosive bituminus coating of inner portion to achieve NRF 82 m3/hrs, max RF 90 m3/hrs, min working pressure 3.5 Kg/cm2, maximum working pressure 6.0 Kg/cm2 of size suitable including interconnected MS pipeline with 100 mm bore heavy grade of suitable length with outer surafce painting with 2 coats of FRP paint of standard colour after duly preparation and base primer on the surafce, presure gauges & sampling cocks, filling of filter media i,e gravels/pebbles various size as per requirement,sand, PVC strainers and MnO2 agent (minimum 65% purity) of qty suitable for removal of iron to satisfactory limit etc along with provision of manhole for replacement of media and inspection door complete all as specified and as directed. Note: (i) Design calculation to be submitted to the department for size of vessel and qty of media MnO2 and coke catalyst along with filter media chart. (ii) Pressure gauge, MnO2 filter media and hard coke catalyst, connected pipeline deemed to be inclusive of the quoted rate. (iii) Drawing to be submitted to the department for approval. (iv) Raw water testing to be carried out from an independent NABL accridited/Govt lab before designing the plant and to be submitted to the department. (v) Contractor shall be capable to meet water quality as per defined parameter mentioned at IS: 10500, 2012 (2nd Rev.) and submit test report after duly completion by NABL accreditated/Govt lab(sample should be collected and sealed in front of MES Rep.) (vi) Contractor shall arrange factory visit as and when directed during manufacturing/fabrication of shell. (vii) The quoted rate also deemded inclusive of imparting training to personnel employed by department for 02 weeks. (viii) PCC foundation and earth work shall be measured and paid separately. (ix) Test report of MnO2, coke catalyst to be submitted to the department. Make- Ion exchange or equivalent make approved in the Zonal CE.

Supply,installation,testing and commissioning of air compressor for oxidation chamber of tank capacity 150 litrs, single cylinder , max pressure 10.5 KG/cm2, piston displacement 7.5 CFM, Energy efficient TEFC Motor of capacity 2 HP (Make - Crompton/ Kirloskar/ABB) including DOL starter Make-L&T/C&S/BCH including copper cable of approx length 20 RM from nearest panel, earthing, air filter for dust particle prevention of 3 micron, pressure realease valve, outlet temperature not more than 5 degree centigrade, permissible noise level to be 60-70 dB at 1 mtr distance connected with suitable size of medium grade SS pipe from air compressor to oxidation chamber all as specified and as directed. Note: (i) Cost of motor, S.S. pipeline, DOL starter, connecting cable, earthing and any other required accessories deemed to be inclusive of quoted rate. (ii) PCC foundation and earth work shall be measured and paid separately. (iii) Necessary Test report to be submitted to the department. Make: Masche/Elgi/Bosch/Gardner denver/Atlas Copco.

Design, supply, installation,testing and commissioning of MS Softner Chamber of Capacity 82 m3/Hrs, 18000 GPH, thickness 12 mm for top and bottom cover and 10 mm for vertical portion with anti corrosive bituminus coating of inner portion to achieve NRF 82 m3/hrs, max RF 90 m3/hrs, min working pressure 3.5 Kg/cm2, maximum working pressure 6.0 Kg/cm2 of suitable size including PVC brine tank, control valve, interconnected MS pipeline 100 mm bore heavy grade of suitable grade, outer surafce painting with 2 coats of FRP paint of standard colour after duly preparation and base primer on the surafce, cast steel globe valve 100 mm type PN 1.6 of reputed make like kirloskar/Adco/KSB/Leader, presure gauges & sampling cocks, filling of filter media i,e gravels/pebbles various size as per requirement, sand, PVC strainers, salt for regeneration for testing and cation resin of qty suitable for reducing the hardness to satisfactory limit etc along with provision of manhole for replacement of media and inspection door, suitable size air vent pipe with control valve complete all as specified and as directed. Note: (i) Design calculation to be submitted to the department for size of vessel and qty of media MnO2 and coke catalyst along with filter media chart. (ii) Cast steel globe valve, Pressure gauge, Gravels/pebbles, resin media, brine tank, connected pipeline etc deemed to be inclusive of the quoted rate. (iii) Drawing to be submitted to the department for approval. (iv) Raw water testing to be carried out in an independent NABL accridited/Govt lab before designing the plant and to be submitted to the department. (v) Contractor shall be capable to meet water quality as per defined parameter mentioned at IS: 10500, 2012 (2nd Rev.) and submit test report after duly completion by NABL accreditated/Govt lab(sample should be collected and sealed in front of MES Rep.) (vi) Contractor shall arrange factory visit as and when directed during manufacturing/fabrication of shell. (vii) The quoted rate also deemded inclusive of imparting training to personnel employed by department for 02 weeks. (viii) PCC foundation and earth work shall be measured and paid separately. (ix) Test report of MnO2, coke catalyst to be submitted to the department. Make- Ion exchange or equivalent make approved in the Zonal CE.

Supply and lay pipe MS ERW as per IS3589 (1981) thickness 5.4 mm, of size 100 mm (4”) dia alongwith fittings like Tee, Elbow, flange etc including painting with base primer and 2 coats of synthetic enamel paint of standard colour with route marking complete all as specified and as directed. Note: Necessary fabrication to be carried out by competent technician and charges deemed inclusive of the rate. Make: Jindal/TATA/SAIL

Supply and lay pipe MS ERW as per IS3589 (1981) thickness 5.4 mm, of size 150 mm (6”) dia alongwith fittings like Tee, Elbow,flange etc including painting with base primer and 2 coats of synthetic enamel paint of standard colour with route marking complete all as specified and as directed. Note: Necessary fabrication to be carried out by competent technician and charges deemed inclusive of the rate. Make: Jindal/TATA/SAIL

Supply and fix for 100 mm dia D.I. resilient (soft) seated gate valve with pocket less body, S.S.stem (AISI 410), EPDM coated di wedge 100% vaccum tight design with toroidal sealing rings & over 250 micron epoxy coating in PN16 designed to BS:5163/IS:14846 non-rising stem type with hand wheel operation complete all as specified and as directed . Make-Kirloskar/VAG/Kartar

Supply and fix for 150 mm dia D.I. resilient (soft) seated gate valve with pocket less body, S.S. stem (AISI 410), EPDM coated di wedge 100% vaccum tight design with toroidal sealing rings & over 250 micron epoxy coating in PN16 designed to BS:5163/IS:14846 non-rising stem type with hand wheel operation complete all as specified and as directed . Make-Kirloskar/VAG/Kartar

Excavating in trenches n. exc. 1.5 m. wide and n. exc. 1.5 m. in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pire holes, etc. n. exc. 10 sqm on plan and not exc. 1.5 m. in depth and getting out in soft/loose soil complete all as specified and as directed.

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

Removing excavated soil not exc 50 mtr and depositing where directed at a level not exc 1.5 mtr above the starting point in soil complete all as specified and as directed.

M/L brick work with sub class B bricks staraight or curved on plan exc 6 mtr means redius built in cment morter 1:4 complete all as specified.

M/L cement plaster 15mm thick on fair faces of brick or concrete surface in CM 1:4 finished surface even and smooth without using extra cement complete all as specified and as directed.

M/L for PCC (1:2;4) type B-0 using 12.5mm graded stone aggregate as in coping of drain including necessary form work complete all as specified and as directed.

M/L PCC (1:4:8) ;type D-2 using 40mm graded stone aggregate as in foundation filling and mass concrete complete all as specified and as directed.

M&L for two coat of synthetic enamel paint over and including a coat of red oxide primer after preparation of surface by scraping, cleaning with the help of sand paper / wire brush of the complete and after cleaning of surface painting with the help of painting brush for existing treatment plant, all suface pipeline in the area, angle of shed including all connection pipe line, valve, existing vessel and pipeline, valves along with Lettering, route marking as per colour code specified etc all as specified and directed. Note: The vessel shall be painated with 2 coats of synthetic enamel paint over a coat of red oxide primer. Colour code: (i) For pipeline: Blue/Black/Red (ii) Vessel : Blue (iii) Valve : Body in Blue and handle in Red.

EAST COAST STANDARD PRODUCTS