NIT NO. 18 (2021-2022) EE(SDW)VI / Item No.7

Repair / Renovation of Primary Settling Tank (PST No.1) for executing the work as per the following specifications. Isolating the PST from inflowing and out flowing channel by closing sluice gate and providing gunny bags to ensure no flow in the PST. De-watering the stagnant water of the PST with the help of sewage submersible pumps and cleaning the site manually for execution the work.

Dismantling of Central mechanism, Reduction gear box with motor and other attached mechanical fixtures from the top of turn table. & Scum arm by removing of nut bolts etc. removing of worm shaft from the gear box and shifting to workable safe place.

Dismantling and taking out the worn-out scrapper arms (both) & center caze, and all other allied rusted structure of PST with the help of gas cutter, man power, and lowering lifting tools and tackles as per site requirement.

Making temporary platform for workable place in the PST around the central caze with all T&P as thrust supports jacks, MS pipe, MS plate, rope wire completes with all safety equipment.

Supply & fixing of scum arm with M. S. plate 20 m long with 8 mm thick and 500 mm width and replacement of support MS angle of size 50 x 50 x 6 including Pipe as required at site.

Providing & fixing of chain coupling sprocket wheel & chain set made out exactly as per shapes, size & MOC of sample.

Providing / fixing of M.S. scraper made out from M.S. steel of 6 mm thick MS plate of size 260 mm width x 1800 mm long as per sample.

Reparing of M.S. centre drum having 2-meter height and 22.5-meter circumfrence approx. of PST with installation of 2 Meter heights x 22.5 –meter circumfrence (approx) fiber sheet on both sides of the MS centre drum. The work includes reparing of damaged channel of the drum as per site requirement.

Supply & Installation of hard threaded rubber squeezers. (Approx. 4” x 3.1 meter

Repairing of reduction gear box with replacement of worm shaft of main gear and to replacement of all damaged bearing with worn out garari machining of complete body with the help of lathe machine with required oil seal and gear oil as required.

Rehabilitation of existing Turntable assembly for noiseless operation operation of the Turntable including supply of components and job work as required including repairing/overhauling and housing straightening repair, machining, polishing, levelling of bevel gear, bushes and replacement of damaged SS balls as required to complete the work of turntable.

Opening the chockage of the pipe line between the PST and Raw sludge Pump House sump with help of jeting Machine and manual labour.

Repair/Servicing of sluice value installed on the line for PST including dismantling and repairing of spindle with nut.

Replacement of scum box made out from M.S. Sheet, angles chanel etc. as required at site.

Repairing of scum chamber by replacement of damage M.S. Jal and G.I. pipe railing including other items etc as required at site.

Pasting of sealing arrangements leak proof for oil from chamber with cotton and gland for prevent of oil up to required level and fixed of middle part of centre mechanism to proper alignment.

Assembly of complete internal gear and gear box assembly after fixing of complete turn table along with the other gear with all safety measures with help of heavy labour and material handling equipment.

Providing & fixing new motor 3 HP 3 Phase as per sample (Make: Kirloskar/C.G./Siemens/ABB DJB/ DJB approved make)

Erection/ Installation of the complete structure PST after assembly/fixing the above material with provision of weight to align the same

Painting the complete PST structure after removing the rust with the wire brush and painting with one coat of epoxy primer and two coats of enameled paint as required at site.

To & Fro charges/ Loading & unloading with all allied other hardware items with complete charges.

Alignment, Testing & commissioning the complete PST after completion in all respect on No load/Full load.

Repairing/Renovation of Primary Settling Tank (PST No. 2) for executing the work as per the following specifications. Isolating the PST from inflowing and out flowing channel by closing sluice gate and providing gunny bags to ensure no flow in the PST. De-watering the stagnant water of the PST with the help of sewage submersible pumps and cleaning the site manually for execution the work.

Dismantling of Central mechanism, Reduction gear box with motor and other attached mechanical fixtures from the top of turn table. & Scum arm by removing of nut bolts etc. removing of worm shaft from the gear box and shifting to workable safe place.

Dismantling and taking out the worn-out scrapper arms (both) & center caze, and all other allied rusted structure of PST with the help of gas cutter, man power, and lowering lifting tools and tackles as per site requirement.

Making temporary platform for workable place in the PST around the central caze with all T&P as thrust supports jacks, MS pipe, MS plate, rope wire completes with all safety equipment.

Supply & fixing of scum arm with M. S. plate 20 m long with 8 mm thick and 500 mm width and replacement of support MS angle of size 50 x 50 x 6 including Pipe as required at site.

Providing & fixing of chain coupling sprocket wheel & chain set made out exactly as per shapes, size & MOC of sample.

Providing / fixing of M.S. scraper made out from M.S. steel of 6 mm thick MS plate of size 260 mm width x 1800 mm long as per sample.

Repairing of M.S. centre drum having 2-meter height and 22.5-meter circumfrence approx. of PST with installation of 2 Meter heights x 22.5 –meter circumfrence (approx) fiber sheet on both sides of the MS centre drum. The work includes repairing of damaged channel of the drum as per site requirement.

Supply & Installation of hard threaded rubber squeezers. (Approx. 4” x 3.1 meter)

Repairing of reduction gear box with replacement of worm shaft of main gear and to replacement of all damaged bearing with worn out garari machining of complete body with the help of lathe machine with required oil seal and gear oil as required.

Rehabilitation of existing Turntable assembly for noiseless operation of the Turntable including supply of components and job work as required including repairing/overhauling and housing straightening repair, machining, polishing, levelling of bevel gear, bushes and replacement of damaged SS balls as required to complete the work of turntable.

Replacement of scum box made out from M.S. Sheet, angles chanel etc. as required at site.

Repairing of scum chamber by replacement of damage M.S. Jal and G.I. pipe railing including other items etc as required at site.

Pasting of sealing arrangements leak proof for oil from chamber with cotton and gland for prevent of oil up to required level and fixed of middle part of centre mechanism to proper alignment.

Assembly of complete internal gear and gear box assembly after fixing of complete turn table along with the other gear with all safety measures with help of heavy labour and material handling equipment.

Providing & fixing new motor 3 HP 3 Phase as per sample (Make: Kirloskar/C.G./Siemens/ABB DJB/ DJB approved make)

Erection/ Installation of the complete structure PST after assembly/fixing the above material with provision of weight to align the same

Painting the complete PST structure after removing the rust with the wire brush and painting with one coat of epoxy primer and two coats of enameled paint as required at site.

To & Fro charges/ Loading & unloading with all allied other hardware items with complete charges.

Alignment, Testing & commissioning the complete PST after completion in all respect on No load/Full load.

SANJAY SALES CORPORATION

CHANDERA BUILDERS

Casmo Traders and Engineers