REPAIRS AND MAINTENANCE OF LIQUID AND GASEOUS CHLORINATION PLANTS WATER SUPPLY PUMPS WITH ALLIED WORKS AT AIR FORCE STATION THANJAVUR

Amount

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 user's 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+ temprature meter, TDS meter range 0 to 500 PPM min Digital TDS meter of make Hydrosphere Impex india Pvt lte or etc equivalent

M&L for cutting the existing 80 mm GI pipe line and inserting the TEE of size 80X80X20mm and making necessary arrengement for pouring of liquid chlorine through funnel in pipeline when dosing pump is off and including fixing of 20mm gate valve to control revese flow of the water suply line complete all as directed.

M&L for cutting the existing 50 mm GI pipe line and inserting the TEE of size 50X50X20mm and making necessary arrengement for pouring of liquid clorine through funnel in pipeline when dosing pump is off and including fixing of 20mm gate valve to control revese flow of the water suply line complete all as directed.

Supply ony pvc apron for operator to handling of chlorine.

S KUMARAN