Routine Breakdown annual Overhauling work of Air Compressors and purgehet Air Dryer adsorber and associated work like L P Pipe valves etc and Repairing of the assembly part of Auxiliaries installed in CAD of 3x210 MW ATPS Anpara

Amount

i)General maintenance & preventive checking, minor repair/adjustments, oil toping, nut & bolt tightening, oil cleaning etc., as per scope of work, for all PAC, IAC & dryers(daily). ii)Round the clock work of changeover and flushing etc. of purgehet air dryer of instrument air compressor including all switching/controlling work of valves etc. to keep the dryer in working order with the main plant. (daily)

Complete overhauling & trial run of Plant Air Compressor, as per scope of work.

Complete overhauling & trial run of Instrument Air Compressor, as per scope of work.

Complete overhauling of trial run of purgehet Air Dryer, as per scope of work.

Replacement /repair of piston rod or blocking nut of HP/LP cylinder, dismantling, setting right and reassemble.

Checking & attending the intercooler/after cooler thorough cleaning & remounting, replacement of parts etc.

Gudgeon pin & small end bush assembly. Opening for checking, rectification & replacement, if required.

Changing of sealing ring/piston ring of HP/LP cylinder.

Changing of bearing ring of HP/LP cylinder or changing of piston half/complete piston of HP/LP cylinder.

Replacement of distance piece /cross head / cross- head guide.

Opening, cleaning, repair / Replacement of parts of suction/ delivery valve of HP/LP cylinder.

Attending the leakage of air/oil line including changing of gasket etc. by welding etc., if required.

Attending & checking of oil cooler including replacement of damaged /worn-out parts ,if required.

Oil filter cleaning & attending of primary/ secondary lub oil filter.

Checking, attending & cleaning with non-corrosive scale remover, of water jacket of HP/LP cylinder.

Opening & resetting /replacement of oil scrapper ring/oil flinger etc of HP/LP cylinder.

Attending and resetting of main bearing including repair/replacement of parts, bearing etc. Also attending blockade in lub oil pump.

Opening, attending defects in plumber block, greasing etc.

Opening, checking of the end cover for defects, changing of gaskets bolts etc. Also replacements of end cover, if required.

Replacement of gland packing ring.

Checking/replacement of intermediate plate of HP/LP cylinder.

Changing, remounting& rectification of ‘V’ belt set of compressors and wheel alignment with motor.

Removal of pulley from main shaft and its remounting in proper position.

Complete opening of mechanical lubricator, finding defects and setting right, cleaning and refitting after servicing.

Servicing of safety valve, replacement of worn out/damaged parts.

Opening and attending lub oil pump assembly including cleaning, resetting and replacement of worn out/damaged parts.

Servicing of moisture trap, repair for any defect, felt element cleaning/changing.

Attending big end bearing/ connecting rod /crank shaft for any defects or replacement of broken parts, if any.

Attending of water/air line valve for leakage etc including greasing the valve, replacement of damaged parts.

Attending of main header valve /NRV including replacement of gasket, repair etc.

Cleaning of element of Primary /secondary filter of inter connection system. This also includes replacement of damaged parts, if required.

Cleaning of air compressors, air dryer, associated pipe line and valves, EOT crane in the compressor house and site office cum store.

Fabrication & replacement of damaged heater housing of air dryer absorber by cutting ,welding etc.

Fabrication & replacement/repair of Bottom air strainer of air dryer absorber.

Fabrication & replacement/repair of Top air strainer of air dryer absorber.

Dismantling & attending fault, cleaning, servicing and replacement of worn out parts, ceiling ring, ‘O’ ring etc of slide valve/ de-compressor valve/ non- return valve of air dryer

Replacement of desiccant in dryer ( both adsorber)

Attending primary /secondary filter of air dryer by opening and refitting, cleaning of filter element etc.

General maintenance & preventive checking of L P Piping as per scope of work. This includes attending valves, small leakages in pipes, choking and blockage removal in all pipes, checking, inspection etc.(1Job=24Hrs)

Desilting/Cleaning of L.P Pipe of Clarified/Raw/Service water up to 32 mm dia

Desilting/Cleaning of L.P Pipe of Clarified/Raw/Service water up to 40 to 65 mm dia

Desilting/Cleaning of L.P Pipe of Clarified/Raw/Service water up to 80 to 250 mm dia

Fabrication of pipe bends/reducers/T bend of different sizes by cutting, welding,bending and grinding/machining etc.

Fabrication of flange of different sizes from M.S./Steel plate by cutting, chipping, drilling, grinding etc.

Cutting the flange/ valve/ reducers/ bends/ usable pipe piece of different sizes from old/damaged pipes etc. and grinding, machining etc. to give finished surface to make it usable.

Replacement of damaged gaskets of different sizes of the flange in pipe line. (Above 100 mm dia size).

Replacement of damaged/worn-out valve at different locations with new/repaired one; (for size above 100mm dia of valves).

Providing flange/bend/reducer/valve in the existing/replaced pipe line including cutting and welding of pipe & tightening with gasket, nuts & bolts etc.

Replacement of damaged/worn-out pipe of various sizes with new one; pipe sizes 15 to 300mm dia.

Providing tapping of different sizes in water/air pipeline with MS/CS/Steel pipe; sizes: 15 to 300mm NB.

Patching/overlapping on different sizes of pipe from 101 cm2 to 400 cm2 patch

Patching/overlapping on different sizes of pipe from 401 cm2 to 900 cm2 patch

Painting with one coat of red oxide primer and two coats of synthetic enamel high gloss paint of approved shads and make, on pipe, valve, flange/steel structures up to 40 mm dia

Painting with one coat of red oxide primer and two coats of synthetic enamel high gloss paint of approved shads and make, on pipe, valve, flange/steel structures up to 41 to 65 mm dia

Painting with one coat of red oxide primer and two coats of synthetic enamel high gloss paint of approved shads and make, on pipe, valve, flange/steel structures up to 66 to 100 mm dia

Painting with one coat of red oxide primer and two coats of synthetic enamel high gloss paint of approved shads and make, on pipe, valve, flange/steel structures up to 101 to 150 mm dia

Repairing and maintenance of spider of sludge pump(PT-1) as per scope of work

Repairing and maintenance of Impeller casing spider of sludge pump(PT-1)

Repairing and maintenance of Line shaft/Impeller shaft/pump shaft of sludge pump(PT-1)

Repairing and maintenance of Shafts (line/pump/impeller) of sludge Pump (PT2)/ permanent vertical sump pump. Dewatering pump /Lubricating pump as per scope of work.

Repairing and maintenance of spider of sludge pump(PT-2) as per scope of work

Repairing and maintenance of Shaft of CRW pump as per scope of work

Repairing and maintenance of Shaft of PRW pump as per scope of work

Repairing and maintenance of Shaft of PT/SRW pump as per scope of work

Repairing and maintenance of mounting spindle of bearing CRW pump as per scope of work

Repairing and maintenance of mounting spindle of bearing PRW pump as per scope of work

Repairing and maintenance of mounting spindle of bearing SRW/PT pump as per scope of work

Repairing and maintenance of Discharge bowl/ intermediate bowl impeller casing / suction bell of CRW pump as per scope of work.

Repairing and maintenance of Discharge bowl/ intermediate bowl impeller casing / suction bell of PRW pump as per scope of work.

Repairing and maintenance of Discharge bowl/ intermediate bowl/ impeller casing / suction bell of PT Pump/SRW pump/Impeller casing of sludge pump(PT-1)/Pump casing of 90 KW DEWATERING PUMP as per scope of work.

Repairing and maintenance of TT Nut/TT Plate CRW/ PRW pump as per scope of work

Repairing and maintenance of TT Nut/TT Plate SRW/ PT pump as per scope of work

Repairing and maintenance of Bearing housing of CRW pump as per scope of work

Repairing and maintenance of Bearing housing of PRW/SRW/PT pump as per scope of work

Repairing and maintenance of Bearing housing/guide vane of Hot clarified pump as per scope of work

Repairing and maintenance of shaft of Hot clarified/clarified pump(PT-1) as per scope of work

Repairing and maintenance of shaft of clarified pump(PT-2) as per scope of work

Repairing and maintenance of Impeller of (PT-1) clarified/(PT-1) Sludge pump/Hot clarified pump as per scope of work

Repairing and maintenance of pump shaft of SP-3L/SP-4L/6L pump as per scope of work

Repairing and maintenance of Impeller of SP-3L/SP-4L/SP-6L pump/Vertical pump/Lubricating pump as per scope of work

Repairing and maintenance of Lower stool/Stuffing box housing /impeller shaft/ Intermediate shaft/gland shaft/head shaft of CW pumps as per scope of work

Repairing and maintenance of Intermediate Plate of LP/HP Cylinder of Air Compressor as per scope of work

Repairing and maintenance of Impeller of CRW pump as per scope of work

Repairing and maintenance of Flywheel of Air Compressor as per scope of work

Re-metallizing of worn-out/damaged portion of the given part by standard quality low hydrogen electrodes metal suitable to the parent material of the C.I. Parts.

Re-metallizing of worn-out/damaged portion of the given part by standard quality low hydrogen electrodes metal suitable to the parent material of the Alloy steel Parts.

Re-metallizing of worn-out/damaged portion of the given part by standard quality low hydrogen electrodes metal suitable to the parent material of the S.S. Parts.

M/S USHA ENTERPRISES (BID ID -5630050)