Mechanical cleaning and disinfection of RCC water tanks UG sumps including over head tanks and certain allied works supply of essential chemical annual maintenance/ services of RO plant installed at various location under GE (I) (CG) Chennai

Amount

De-watering and cleaning inner surface of Semi under ground sump of capacity 6.80 lakhs litres for phase-I pump house at Thalakancherry by scrapping down with wire bush and washing with bleaching powder to remove sludge, clay, dirt and other foreign particles etc from the inner base of sump and removal of debris to a distance 50 m away from the site and depositing where directed including cleaning /surface dressing upto 20 meter around the sump complete all as specifed and as directed .

De-watering and cleaning inner surface of Under ground sump of capacity 6.80 lakhs litres for phase-II pump house at Thalakancherry by scrapping down with wire bush and washing with bleaching powder to remove sludge, clay, dirt and other foreign particles etc from the inner base of sump and removal of debris to a distance 50 m away from the site and depositing where directed including cleaning /surface dressing upto 20 meter around the sump complete all as specifed and as directed .

De-watering and cleaning inner surface of Semi under ground sump of capacity 75000 litres for balancing tank in swimming pool at Thalakancherry by scrapping down with wire bush and washing with bleaching powder to remove sludge, clay, dirt and other foreign particles etc from the inner base of sump and removal of debris to a distance 50 m away from the site and depositing where directed including applying two coats of white wash and cleaning /surface dressing upto 20 meter around the sump complete all as specifed and as directed .

De-watering and cleaning inner surface of Semi under ground sump of capacity 100000 litres at ICGAS Meenambakkam and CGRA Ragamalika by scrapping down with wire bush and washing with bleaching powder to remove sludge, clay, dirt and other foreign particles etc from the inner base of sump and removal of debris to a distance 50 m away from the site and depositing where directed including applying two coats of white wash and cleaning /surface dressing upto 20 meter around the sump complete all as specifed and as directed .

De-watering and cleaning inner surface of Under ground sump of capacity 50000 litres at ICGAS Meenambakkam , RHQ(E) and CGRA Royapuram by scrapping down with wire bush and washing with bleaching powder to remove sludge, clay, dirt and other foreign particles etc from the inner base of sump and removal of debris to a distance 50 m away from the site and depositing where directed including cleaning /surface dressing upto 20 meter around the sump complete all as specifed and as directed . NOTES: for Serial item nos: 1 to 5: Sumps has to be Cleaned at every 06 months interval

Taking out and Lowering of sewage pump set 30 HP capacity submersiable type including serviceing of pump with provision of gasket, bushes and net, stainer complete all as specified and as directed.

Mainteance of 250 litre per hour Reverse Osmosis Plant at CG Md Accn at Thalakancheery for smooth running and functioning as per schedule of maintenance mentioned in Appendix "A" complete all as specified and as directed.

Description all as per Srl item NO: 08 here in before but plant capacity of 500 litre per hour reverse Osmosis Plant at ICGAS Meenabakkam, Chennai

Description all as per Srl item NO: 08 here in before but plant capacity 1000 litre per hour reverse Osmosis Plant at CGRA Ragamalika (Mogappair West), Chennai NOTE: The rate quoted for serial item Nos 07 to09 shall also inclusive of quartely cleaning of RO water tank (PVC) and getting the water Sample duty tested Half yearly for the potability by the Govt approved laboratory for each plant.

Replacement of micro filter of size (20`*4") Spun-5 micron Jumbo Wound Complete all as specified and as directed.

Replacement of micro filter of size (20`*2.5") Spun-5 micron PP Wound Complete all as specified and as directed.

Replacement of micro filter housing of size (20`*4") Spun-5 micron Jumbo Wound Complete all as specified and as directed.

Replacement of micro filter housing of size (20`*2.5") Spun-5 micron PP Wound Complete all as specified and as directed.

Supply of Sodium Hypo Chloride Solution for plant including mixing into water as per requirement complete all as speicified and as directed.

Supply of SMBS for De-chlorination for plant including mixing into water as per requirement complete all as specified and as directed.

Supply and fix End Cover and Saddle for membrance housing 40-40

chemical cleaning /washing of membrane of Size 40-40 during routine maintenance work

Supply of Anti Scalant chemicals for plant including mixing into water as per requirememnt complete all as specified and as directed.

Replacement of dosing pump set for RO palnt of capacity 6 litre/hour, single Phase, 230 Volt , AC testing and commissioning of Pump complete all as specified and as directed. NOTE: Contractor shall submit two year warranty for pump.

Replacement of unserviceable membrane housing and provision of membrane as per existing size 4" BW 40-40 for capacity 500 litre, 1000 litre/per Hour RO Plant complete all as specified and as directed. Make: Flimtec/Osmonics/GE/Hydraunatics/Pentair

Replacement of unserviceable membrane housing and provision of membrane as per existing size 4" BW 80-40 for capacity 500 litre, 1000 litre/per Hour RO Plant complete all as specified and as directed. Make: Flimtec/Osmonics/GE/Hydraunatics/Pentair

Replacement of unservieable PVC float valve and Supplyy and fix new PVC float value of 20 to 25 mm size/as per existing size complete all as specified and as directed. Make:M/S Ozone Technologies/GE.

Replacement of unservicable existing skid complete and Supply and Fix New Frame/Stand/Skid for R O Plant made out of staniless steel -grade 304 material suitable for 250 LPH capacity including necessary demolition of existing PCC Platform and provision of PCC 1:2:4 type B1 using 20 mm graded stone aggregate as in platform (0.5cum Approx) for fixing of Skid including removal of debris of distance not exceeding 50 metres complete all as specified and as directed.

Replacement of unservicable existing skid complete and Supply and Fix New Frame/Stand/Skid for R O Plant made out of staniless steel -grade 304 material suitable for 500 LPH capacity including necessary demolition of existing PCC Platform and provision of PCC 1:2:4 type B1 using 20 mm graded stone aggregate as in platform (0.75cum Approx) for fixing of Skid including removal of debris of distance not exceeding 50 metres complete all as specified and as directed.

Replacement of unservicable existing skid complete and Supply and Fix New Frame/Stand/Skid for R O Plant made out of staniless steel -grade 304 material suitable for 1000 LPH capacity including necessary demolition of existing PCC Platform and provision of PCC 1:2:4 type B1 using 20 mm graded stone aggregate as in platform (1.0cum Approx) for fixing of Skid including removal of debris of distance not exceeding 50 metres complete all as specified and as directed.

Replacement of unserviceable LP switch and Supply and fix new LP switch (KP 35) as per existing size complete all as specified and as directed. MAKE: Ozone technologies/GE/Donfoss.

Replacement of unserviceable HP switch and Supply and fix new HP switch (KP 36) as per existing size complete all as specified and as directed. MAKE: Ozone technologies/GE/Donfoss.

Replacement of unservicable UPVC pipe of any size and Supply fix 40 mm bore UPVC pipes of pressure rating 10 kg/cm2 with fittings laid in trenches/on wall/floor fixed with clamps complete all as specified and as directed. MAKE: Finotex/Trubore/Supreme

Replacement of unservicable UPVC pipe and Supply fix 25 mm bore UPVC pipes of pressure ratng 10 kg/cm2 with fitting laid in trenches/on wall/floor fixed with clamps complete all as specified and as directed. MAKE: Finotex/Trubore/Prince

Replacement of uservicable flow meter and Supply fix new flow meter as per existing size complete all as specified and as directed. MAKE: Ozone technologies/GE/Donfoss.

Supply only 10mm dia PVC hose pipe for pressure gauge and dosing

Supply only pressure gauge 0-25kg/cm2

Supply only Needle ball valve for dosing pump

Supply and fix PVC ball valve of 1" dia

Supply and fix PVC ball valve of 3/4" dia

Supply and fix Ultra violet lamp housing for 500-1000 litres capacity RO Plant

Replacement of unservicable multi port valve and Supply and fix new multi port valve of size 40NB TMF SOLO, 250 to 500 LPH capacity RO Plant complete all as specified and as directed. MAKE: Ozone technologies/GE/USS/Solo

Replacement of unservicable control panel and supply and fix new control panel Astro Panel 33 complete all as specified and as directed. MAKE: Astro/GE.

Servicing/Repairing of Auto control panel Astro-33

Replacement of uservicable pressure sand filter media and Supply and fix new pressure sand filter media suitable for 500/1000LPH RO plant complete all as specified and as directed. MAKE: Astro/GE.

Replacement of uservicable pressure sand filter media and Supply and fix new Activated carbon filter media suitable for 500/1000LPH RO plant complete all as specified and as directed. MAKE: Astro/GE.

Supply, hoisting,installing and connecting rotational mould polyethylene water storage tank of capacity 500 litres , double layered cylindrical vertical tank with closed top confirming to IS 12701:96 complete all as specified and directed MAKE: Sintex/Aquaplus/Polycon

Supply, hoist,install and connect rotational mould polyethylene water storage tank of capacity 1000 litres , double layered cylindrical vertical tank with closed top confirming to IS 12701:96 complete all as specified and directed MAKE: Sintex/Aquaplus/Polycon

Re-programming Automatic Digital multi port valve with reference to interconnected other media filters and control panel board

Servicing/Repairing of Automatic Digital multi port valve (25NB Auto valve solo)

Replacement of unserviceable Automatic Digital multi port valve(25 NB Auto valve solo) and Supply and fix new Automatic Digital Multi port valve of size 40mm dia ( for 500 to 1000 LPH RO Plant ) complete all as specified and as directed.MAKE: Ozone technologies/GE/USS/Solo

Fixing/Laying only GI Pipe 25 mm dia including provision of all fitting and fixtures such as bend, elbow, socket etc. including taking out old unservicable pipe and taken as credit complete all as specified and as directed.Note :(GI pipe will be issued under sch B as free for fixing only)

­do - here in before but 40 mm size dia

­do - here in before but 80 mm size dia

Exacavtion in trenches not exceeding 1.5 m wide and not exceeding 1.5m depth to foundation , taking out/laying GI pipe etc. and getting out in soft/loose soil complete all as specified and as directed.

Returing,filling in including spreading, levelling ,watering and well ramming in layers not exceeding 25 cm in soils complete all as specified and as directed.

Removal of surplus soil to distance not exceeding 50meter away from starting point and depositing 1.5Meter above the starting point complete all as specified and as directed.

RAVI ENTERPRISE