repairs and maintenance of liquid and gaseous chlorination plants water supply pumps with allied works at air force station thanjavur , comprehensive maintenance and repair of liquid chlorine dosing system of capacity 6 ltr per hour of any make complete with dosing pump and other connected accessories 7 nos located in the following locations :- ( i ) domestic area pump house - 03 no . ( ii ) technical area - 02 nos ( iii ) living in area 02 no . note: ( i ) spare items/spare parts for liquid chloronome plant shall be measured and paid separately under relevant items as supply only . ( ii ) cost of items/spare parts which are not covered in sch `a but are necessary for the satisfactory functioning of the plant shall be deemed to be included in the rate quoted for this item . ( iii ) testing of clorine contants has to be maintained as per the users point within 0 . 2 to 0 . 5 ppm . ( iv ) rate for re-fixing of dozing pump in proper way after repair and servicing/cleaning of pvc tank and other accesories is deemed to be inclusive . ( v ) labour charges for removal of unserviceable parts and fixing of new spare items/parts ( supplied under the item no . 01 ) shall be deemed to be included in the rate quoted for this item . make:aqua / purichlor / aqua safe plus or equivalent approved by ge . , supply only following spares/parts :- , glass nrv valve . , pvc heavy duty ball valves 15 mm dia inlet . , pvc heavy duty ball valves 15 mm dia outlet . , pvc air release valves 15 mm dia . , dosing head for liquid chlorination plant . , suction filter with adaptor for liquid chlorination plant . , injection valve assembly for liquid chlorination plant . , foot valve for liquid chlorination plant . , nrv for liquid chlorination plant , teflon or lkdp liquid connecting pipe . , supply only orthotolodine solution capacity 500ml make:thomas backer/glaxo/nice/ nikita enterprises , supply of sodium hypochloride liquid in sealed container of 35/ 50 litrs purity 10 to 12% and suitable for potable drinking water . , supply of bleaching powder 25 kg bag complete all as specified and directed . make:vikram/dcm/modi/ sriram spb , supply only measuring jar 2000 ml to measure clorine and water in pvc liquid clorine tank . make : sopy twist , esaw or equivalent , supply only calcium hypo chlorite 65 to 70% pure packed in 45 kg drum suitable for human consumptionall as specified and as directed . make: purichlor / aquafit or equivallent . , supply and fix in repairs chloroscope 0 . 1 to 2 ppm having different glass of amples in wooden box ( portable ) . make: satyasai/aqua /candy or equivalent make approved by e in c . , supply only pvc hand gloves for handling of liquid clorine chlorine and granuals form . , taking out the water sample from various location of bore well and carry out water for bioligical & chemical testing from government ground water dept twad cell thanjavur . , repair/replacement of existing water level indicator by replacing the defective stainless steel wire rope of size 3 mm , and stainless steel float of 400 mm dia etc for over head tank all as specified and directed . make : m/s level and flow control engineers chennai , seco , v-guard , simma safety device or etc equivalents . , repair/replacement of existing water level indicator by replacing the defective stainless steel wire rope of size 3 mm , and stainless steel float of 400 mm dia etc for under ground sump all as specified and directed . make : m/s level and flow control engineers chennai , seco , v-guard , simma safety device or etc equivalents . , supply and fix in repair new water level indicator digital type complete working in 240 volt 50 hz power supply includes of sensors , control wiring , control circuits , indicators etc all as specified and directed . make: m/s level and flow control engineers chennai , seco , v-guard , simma safety device or etc equivalents . , taking down unserviceable watermeter and supply & fix c . i . water meter woltman type magnetic drive class-b flanged end suitable for borewell submersible pump delivery line 80mm dia fixed incuding jointing with nuts , bolts , rubber gaskets etc complete all as specified and as directed . make : kranti , dashmesh & manikant brothers , mumbai , taking down unserviceable watermeter and supply & fix c . i . water meter woltman type magnetic drive class-b flanged end suitable for borewell submersible pump delivery line 50mm dia fixed incuding jointing with nuts , bolts , rubber gaskets etc complete all as specified and as directed . make : kranti , dashmesh & manikant brothers , mumbai , supply & fixed rigid non-metallic pvc conduit 20mm dia exclusive of boxes ( junction/terminal ) but inclusive of all tees , bends , elbows , reducers , bell mouth tube ends and fixing accessories such as couplers , lock nuts , saddles , pipe hooks complete all as specified and as directed , repair & replacement of sodium hypo dosing system including 100 ltr pe/frp tank with pe/ frp lid & level gauge along with agitator ( 1200 rpm ) with shaft & blade ( frp/ epoxy coated ) / plastic mounted on tank , making provision for pouring sodium hypo chlorine and water when necessary , connecting/ inserting the outlet of the dosing pump to the delivery line for direct injection to achieve higher efficiency of the dosing pump , testing & commissioning complete all as specified and directed by engr-in-charge . make: aqua pure / aquafit , purichlor or equivalent , repair & replacement of preparation tank of chemical dosing system as accessories capacity of tank 150 ltrs to 170 ltrs approx pe/frp tank dia 650x net height 375+ conical 300 and cross height with stand 1000mm consisting of water inlet line , out let with y strainer , drain overflow , conical bottom of sludge deposition , pot hole with cover/ lid & level gauge including necessary pvc connection & testing complete all as specified and directed by engr-in-charge . make: aquafit , purichlor or equivalent , repair & replacement of agitator 120watt 900rpm single phase flange mounted motor of chemical dosing system with plastic shaft and impeller including electric and water connection , . testing & commissioning complete all as specified and directed by engr-in-charge . make: aquafit , purichlor or equivalent , repair & replacement of service tank 100 ltrs of frp dosing tank top dia 540mm bottom dia 480 mm x height 575mm consisting of water inlet line dosing pump inlet arrangement , drain overflow , level gauge , inspection port and pvc connection of suitable size including testing complete all as specified and directed by engr-in-charge . make: aquafit , purichlor or equivalent , repair & replacement of agitator 120 watt 900rpm single phase flange mounting motor with plastic shaft and impeller making provision for pouring granules and water when necessary , connecting/inserting the outlet of the dosing pump to the delivery line for direct injection to achieve higher efficiency of the dosing pump , testing & commissioning complete all as specified and directed by engr-in-charge . make: aquafit , purichlor or equivalent , suply and fixed in repair divinext multifuctional water testing zkit tds+ph+ec+ tempra