NIT NO. 2 (2021-2022) EE(SDW)VI / Item No.4

Upgradation of flow controlling system at aeration & return sludge pump house of 20 MGD STP Keshopur with following works:- Upgradation of flow controlling system at aeration & return sludge pump house of 20 MGD STP Keshopur with following works:-

Cutting of old damage supporting structure with the help of gas cutter and heavy duty labour i/c holding the valve with help of chain pulley block and tripod stand etc.

Dismantling and taking out the operating mechanism, spindle and CI shutter of 800x800 mm gate from its installed position after cutting of nut bolts and fasteners with the help of gas cutting set, it includes heavy manual labour, long boom crane and other auxiliary works

Dismantling and taking out the operating mechanism, spindle and CI shutter of 1200x1200 mm gate from its installed position after cutting of nut bolts and fasteners with the help of gas cutting set, it includes heavy manual labour, long boom crane and other auxiliary works.

Repairing of CI shutter of 800x800 mm gate including chemical cleaning of gates. Repairing the surface area and wedge side etc. including the cost of chemical & T&P etc.

Repairing of CI shutter of 1200x1200 mm gate including chemical cleaning of gates. Repairing the surface area and wedge side etc. including the cost of chemical & T&P etc.

Cleaning and repairing of guide channel of 800x800 mm for C.I. shutter i/c the cost of chemical and T&P etc. with help of mannual labour.

Cleaning and repairing of guide channel of 1200x1200 mm for C.I. shutter i/c the cost of chemical and T&P etc. with help of mannual labour.

Repairing of existing SS spindle of 1200x1200 mm controlling gate i/c remetalling, turning, re-threading & polishing etc. as required

Making and fixing of new SS spindle of SS-304 for 800x800 mm controlling gate of 45 mm dia, 6 ft length (approx.) along with making threads on lathe, shaper machines

Repairing of operating mechanism by providing fixing of G.M. nut and thrust bearing as per sample with other allied machining works as required to make it operational

Fabrication and fixing of supporting structure made out from M.S. channel, angle iron, M.S. sheet, nuts & bolt and welding work as required holding the valve i/c civil work .

Providing and fixing of channel 4 inches, 5 ft length between gates for support and strength with required civil work as per site requirement

Assembling the controlling gates with its all components with the help of required labour, long boom crane, nut, bolts, fasteners, tools & tackles, welding and other auxiliary works as required at site to make the unit functional.

Repair/Renovation of 200 mm sluice valve. The job i/c taking out sluice valves out of chamber by cutting of rusting nut bolts with the help of gas cutter, repairing the same by repairing/replacing spindle, flap, bush as per site requirement and fixing back at site with rubber gasket, flanges, nut bolts etc as required

Repair/Renovation of 400 mm sluice valve installed at return sludge line in aeration distribution chamber. The job i/c taking out sluice valves out of chamber by cutting of rusting nut bolts with the help of gas cutter, repairing the same by repairing/replacing spindle, flap, bush as per site requirement and fixing back at site with rubber gasket, flanges, nut bolts etc as required

Replacement of gap piece and ms bend in aeration distribution chamber by taking out old rusted MS gap piece with the help of gas cutter. Providing & fixing of new 400 mm MS gap piece and MS bend of 1 meter length (approx.) along with flanges, rubber packing, nut bolts with washer etc as per site requirement.

Providing & fixing of 200 mm MS line with bend of approx. 5 meter length at effluent channel for cleaning and emptying out aeration and FST. The job includes digging the earth, taking out rusted MS pipe, welding the new pipe with old one and fixing the same from ground to inside of effluent channel by providing fixing of MS bends, flanges, rubber packing, nut bolts etc as per site requirement

Painting the complete job with one coat of epoxy primer and two coats of enamel paint after cleaning the surface area.

Testing & commissioning of the flow control system for smooth functioning.

SANJAY SALES CORPORATION

PARAS SALES SYNDICATE

J K ENTERPRISES

JAI DURGA ENGINEERS AND CONTRACORS