REPAIR/REPLACEMENT/MAINT OF FILTER MEDIA, CLARIFIER, FLOCULATOR, FILTER BEDS, AERATORS, COMPRESSOR AND OTHER CONNECTED WORKS AT RSPH AT AF STN DIGARU.

Amount

Dewatering of Airator chamber of size 8 mtr X 2.5 mtr X 1.5 depth by means of pump set and removing all deposited silt,mud,sludge etc from the bottom of RCC tank and depositing at distance not exc 50 mtr, Cleaning and disinfection of entire internal surfaces of chamber using suitable cleaning agent / bleaching powder complete all as specified and directed by Engr-in-charge.

Dewatering of cascade Airator 4 step of base dia 7 mtr, height 6 mtr approx by means of pump set and removing all deposited silt,mud,sludge etc from the all step of RCC foundation and depositing at distance not exc 50 mtr, Cleaning and disinfection of entire internal and outer surfaces of all steping including Base foundation by using jet water spray(using jet water spray machine) and suitable cleaning agent(liquid spray type) complete all as specified and directed by Engr-in-charge.

Preparation of wall with broom or steel wire brush complete and M & L for distemper Oil emulsion /cement base paint one coat as per existing colour with arrangement of scaffolding / T&P by the contractor for inner and outer surface of RCC Airator tank well of any shape of the of size 8mtr X 2.5 mtr X 1.5 mtr depth complete all as specified and directed.

Dewatering of flocculation chamber of size 13'6" X 13'6" X 12' depth by means of pump set and removing all deposited silt,mud,sludge etc from the bottom of RCC tank and depositing at distance not exc 50 mtr, Cleaning and disinfection of entire internal surfaces of chamber using suitable cleaning agent / bleaching powder complete all as specified and directed by Engr-in-charge.

Dewatering of Clarifier chamber of size 36' dia,14'6" depth by means of pump set and removing all deposited silt,mud,sludge etc from the bottom of RCC tank and depositing at distance not exc 50 mtr, Cleaning and disinfection of entire internal surfaces of chamber using suitable cleaning agent / bleaching powder complete all as specified and directed by Engr-in-charge.

Preparation of wall with broom or steel wire brush complete and M & L for distemper Oil emulsion /cement base paint one coat as per existing colour with arrangement of scaffolding / T&P by the contractor for inner and outer surface of RCC Flocculator tank well of any shape of the of size 13'6" X 13'6" X 12' depth complete all as specified and directed.

Preparation of wall with broom or steel wire brush complete and M & L for distemper Oil emulsion /cement base paint one coat as per existing colour with arrangement of scaffolding / T&P by the contractor for inner and outer surface of RCC Clariffier tank well of any shape of the of size 36' dia,14'6" depth complete all as specified and directed.

M&L for painting of suction line,discharge line,priming line and centrifugal motors of 50 HP-03 Nos at High lift and turbine pump 50 HP at Low lift and all gate valves,sluice valves, NRVs etc as existing colour with two coats of synthetic enamel paints by spray painting of Asian make and removal of existing paint by hand scrapping and wire brush preparing the surfaces by sand paper and cleaning the surface and making good damaged surface by denting, welding, grinding all as required for completion of job complete all as specified and directed.

Removal of existing/old unserviceable filter media from RCC filter chamber of size approx 3meterX 3meterX 3.5 Meter depth of water treatment plant and deposting at a distance not exceeding 50 meter and cleaning filterchamber and wall surface throughly and applying two coats of lime wash on side walls etc. complete all as specified and directed.

Supply and filling of filter media using graded gravel of size between 40mm to 20 mm etc. complete all as specified and directed.

Supply and filling of filter media using graded gravel of size between 25mm to 15mm etc complete all as directed

Supply and filling of filter media using graded gravel of size between 15mm to 08 mm etc. complete all as specified and directed.

Supply and filling of filter media using BARKARA coarse sand of 10 to 20 mesh etc. complete all as specified and directed.

Supply and filling of filter media using BARKARA coarse sand of 16 to 32 mesh etc. complete all as specified and directed.

Disconnecting and dismantling the unservicable floculator gear box and motor from flocculator tank from High lift at RSPH, shifting to civil workshop and removing burnt out windings, cleaning the slots, rewinding with super enamelled copper winding wire as per existing gauge and size, varnishing and drying complete, reassembling with gear box after servicing/replacing the gear box as per existing size and make, transporting to site and refixing at original position and connecting floculator gear box and motor electrically and mechanically, testing for satisfactory working complete all as specified and directed. Note: - All the accessories with nuts bolts, washers etc shall be provided by the contractor and unit rate quoted shall deemed to include the cost of the same.

Repair/replacement of old unservicable Cheminject Chemical dosing pump RMP-11 plunger type fitted with 0.5 HP 440 volts,200 LPH AC TEFC type 1440 RPM at riverside high lift pump house. Make :- Cromton Greaves Ltd,RMCO or equivalent

Repair/replacement of 100 ltrs capacity FRP solution cum settling tank fitted with gear,motor and SS-316 agitator from high lift at river side pump house all as specified and directed. Make: RMCO or equivalent

Cleaning of jackwell (10 meter depth and 6 meter dia approximate at RSPH low lift) from bottom by means taking out solid sludge to be disposed outside MOD Land from the starting poin, White washing to complete internal walls and floors of chambers and painting to hand rail all as per specified and directed and up to the satisfaction of Engineer-In-Charge.

Removal of existing old /unserviceable filter media and supply filling / laying filter media in the sewage treatment plant including necessary testing with coarse sand (16 to 32 mesh) complete all as specified and directed.

M&L, one coat of synthetic enamel painting over a coat of red oxide primer after scraping the rusted surface of the existing panel board, pump motor, blower unit, air blower pipe line, sludge pipeline, clear water pipeline, valves, pump house gate and etc. with the brush all as per existing colour code under sewage plant complete all as specified and directed by Engr-in-charge.

Dewatering of priming tank at RSPH of size 14x6.8x3.5 mtr depth by means of pump set and removing all deposited slit, mud, sludge etc. from bottom of RCC tank and depositing at a distance not exceeding 50 mtr, cleaning and disinfection of entire internal surfaces of chamber using suitable cleaning agent/bleaching powder and applying two coats of lime wash on side wall complete all as specified and directed by Engr-in-Charge.

Taking down Turbine motor of 50 HP capacity from existing position for carrying out repair works and re-assembling, re-installing the pump set in original position for the same capacity. Note:- Spare parts, winding wire required for renewal shall be measured and paid separately.

Supply and fixing in repair ball bearing suitable for turbine pump 50 HP no 321E/291E. Make : SKF/NBC or equivalent.

Supply and fixing in repair ball bearing suitable for turbine pump 50 HP no 6311. Make : SKF/NBC or equivalent.

Supply and fixing in repair MS collar as per sample.

Supply and fixing Pump shaft of vertical turbine pump of cap 50 HP (min 3 meter long) of stainless steel as per existing sizes with MS socket, bush complete with threading, machining and groove cutting with shaft key as per sample complete all as specefied and directed.

Ms N D Enterpise

M/S B.H. ENTERPRISE

M/s Rawat Enterprises

M/s Capital Traders

M/s Ravi Enterprise

M/S. SUBHAS CONSTRUCTION CO.