BIENNIAL CONTRACT FOR MECHANICAL MAINTENANCE (PREVENTIVE and ROUTINE, BD and OH) AND OPERATIONAL SUPPORT OF EQUIPMENTS OF MAIN PLANT BOILER and AUX,TG and AUX AND BOP (EXCLUDING MAJOR OVERHAULS OF BOILER AND TURBINE)AT UPRVUNL CTPS OBRA (2X 660 MW)

Amount

Biennial Routine, Round the clock, Preventive and Breakdown maintenance work of Boiler & ESP of 2x660MW Units C'TPS Obra

Round the clock Routine & Preventive, Minor Breakdown maintenance and equipment cleaning work of Main Boiler, APH for 2x660MW Units.

Daily routine maintenance work scope including burners, scanner air fan, purge air fan, Inspection of soot blowers, oil gun cleaning etc. in respect of Main boiler as well as Aux boiler work round the clock .

Cleaning of boiler and other associated work of 2x660 MW as well as Aux boiler

Routine and Preventive maintenance of Mechanical Systems of ESP for 2x660 MW, CTPS Obra.

Cleaning and sweeping of railing of ESP top cover and cleaning of double geared motors of emitting electrode rapping mechanism (108 nos).

Cleaning and sweeping of plateform between passes and cleaning of doubled geared motor of collecting electrode rapping mechanism ( for both units)

Checking of oil level and attending oil leakage in all double geared motor of CERM, DERM, GDRM.(per week 52x2x2)

Cleaning and sweeping of all stairs railing and plateform from ‘o’ mtr to top of ESP (Once in a week).

Cleaning and sweeping of outside casing walls between passes (once in two month).

Inspection and tightening of nut and bolts of CERM, DERM & GDRM if found in loose condition (once in a week 52x2x2).

Cleaning of ash dust from ESP TR Floor of one pass, monthly per pass.(72x2x2)

Biennial Routine, Round the clock, Preventive and Breakdown maintenance work of TG and its Auxiliaries & CW/ACW Pumps of 2x660MW Units C'TPS Obra

Round the clock Routine , Preventive, Minor Breakdown maintenance and equipment cleaning work of Main Turbine and its Associated Auxiliaries for 2x660MW Units.

Round the clock Routine maintenance, Preventive Maintenance, and Equipment Cleaning work of Main Turbine and its Associated Auxiliaries, for Both Units of 2x660MW (One job consists of 24 hrs. work in 03 shifts of 08 hours each).

Operation of TG hall EOT cranes (02 nos.) Capacity: 140/25 Ton (One Job consists of 08 hours duration operation).

CW & ACW SYSTEM: - Routine, Preventive Maintenance CW Pumps ACW Pumps CW sealing cooling pump ACW Self Cleaning strainer ACW PHE (plate heat exchanger) and Valves/Butterfly valves associated with CW & ACW system as per scope of work (one job consists of three shift of 08 hours each)

EOT CRANE AND MONORAIL CRANE: -Routine, Preventive Maintenance of EOT crane and Monorail Crane as per scope of work (one job consists of 08 hrs )

Daily Cleaning work of all Floors, stairs, railings, trenches, door etc in the turbine area for Both Units of 2x660MW

Weekly Cleaning work of ventilation and cooling air ducts, piping, columns, etc in the Turbine area for Both Units of 2x660MW

Weekly Mechanized cleaning of T.G. floor for Both Units of 2x660MW

Biennial Round The Clock Routine, Preventive and Breakdown Mechanical Maintenance Works of Milling System, RC Feeder, Coal Mill Reject System, ID, FD, PA Fan, Hydrogen Generation Plant and Its Associated System of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Round The Clock Routine & Preventive, Minor Breakdown Mechanical Maintenance and Equipment Cleaning Work of Milling System, RCFs, Fans and EOT Cranes / Monorail Cranes of Mills & Fans of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Round The Clock Routine Maintenance Of Bowl Mills, RC Feeders, Coal pipes & other Miscellaneous work of Unit # 1 & 2 in Morning/Evening/Night shift. (1 Job of 08 Hours duration)

Round The Clock Operation of PLC (Auto) Room/Manually From Mill Site And Compressor For Coal Mill Reject Handling System And Routine/Preventive/Breakdown Maintenance Of Pneumatic Coal Mill Reject Handling System & Compressor With Air Receiver Tank And Air Pipe Lines Etc. Along With The House Keeping Of Reject System And Near By Area (Like Reject Hoppers, Mill Gear Box, Mill Motor Coupling Etc.) of Unit # 1 & 2 in Morning/Evening/Night shift. (1 Job of 08 Hours duration)

Routine Maintenance of ID, FD and PA Fans during General shift per day and other Miscellaneous work of Unit # 1 & 2 (1 Job is considered as 8 hourly works in daytime)

Operation, Maintenance and Upkeep of Hydrogen Generation Plant and Its Accessories of 2X660 MW, CTPS, OBRA (1 Job of 08 Hours during day time as per requirement)

Operation, Routine, Preventive and Breakdown maintenance work, Overhauling of Pumps/ Valves, Housekeeping, patrolling of unloading header, unloading from road tanker, cleaning of tanks and any other work related to fuel oil System as per Scope of Work .

Routine, Preventive & Break Down maintenance works of fuel oil System.

Operation, Routine, Preventive and Breakdown maintenance work, Overhauling of Pumps/ Valves, Housekeeping, patrolling of unloading header, unloading from road tanker, cleaning of tanks and any other work related to fuel oil System (1 Job consists of above work carried out in 1 month)

Decantation (Unloading) of LDO from BTPN Racks.

Biennial Round the clock routine, preventive & breakdown mechanical maintenance and assisting in operation of complete Water & Waste Water Treatment Plant, Induced Draft Cooling Tower system of 2X660 MW, CTPS, Obra

Biennial Round the clock routine & Minor breakdown mechanical maintenance and assisting in operation of complete Water & Waste Water Treatment Plant, Induced Draft Cooling Tower system of 2X660 MW,CTPS, Obra

Round the clock Routine & preventive maintenance and assisting in operation of complete Water, Raw Water & Waste Water Treatment Plant, Induced Draft Cooling Tower system of 2X660 MW,CTPS, Obra

Round the clock collection and preparation of sample and analysis of water/steam/coal/oil/ ash/waste water and Monitoring, Recording & maintaining Water Chemistry of 2X660 MW,CTPS, Obra

Routine collection and preparation of sample and analysis of water/steam/coal/oil/ash/waste water/flue gas/mill fineness/various components pertaining to pollution etc. and Monitoring, Recording & maintaining Water Chemistry ,calibration of instruments and Standardization of solutions for the special testing of 2X660 MW,CTPS, Obra.

Biennial Routine, Round the Clock Operation, Preventive and Breakdown maintenance works of Compressed Air System, Fire Fdetection & Protection System, HVAC and Lifts of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Routine maintenance & General Upkeeping works of Compressed Air system, Fire Detection & Prevention system, HVAC & Lifts/Elevators in 2x660 MW Obra 'C'TPS

Round the clock Operation and Routine & Preventive maintenance (Mechanical) of M/s Atlas Copco make Compressed Air Compressor system of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Round the Clock Operation and Routine, Preventive Maintenance (Mechanical) of M/s Atlas Copco make Service Air Compressor (03Nos,2W+1S), Instrument Air Compressors (03Nos,2W+1S), Air Driers (03Nos,2W+1S), Air Receivers(16 nos.) and associated air / water pipe lines & valves of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Operation and Routine, Preventive Maintenance (Mechanical) and Operation of EOT in Compressor House Building of 2X660MW , 'C'TPS, Obra, Sonebhadra.( Capacity- SWL 8 T)

EOT/Cranes (< 10MT) Statutory Testing of Compressor House( 01 no.)

Round the Clock Operation and Routine & Preventive maintenance (Mechanical) work of Fire Detection and Protection System including Inert Gas system of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Round the clock Operation and Routine & preventive maintenance work of Fire Pump House, Foam Pump House (LDO Tank & Day Tank), Hydrant System including pipe line & valves of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Routine/ Round the clock maintenance and monthly monitoring of Sprinkler, Emulsifier, Inert Gas system and fire detection & protection System of 2X660MW , 'C'TPS, Obra, Sonebhadra

Routine, Preventive Maintenance (Mechanical) and Operation of EOT / Mono Rail in Fire Pump House, Foam Pump House ( LDO Storage Tank & Day Tank) and Fire Water Booster Pump House of 2X660MW , 'C'TPS, Obra, Sonebhadra.(Cap.- SWL 5T) (Consisting of all four EOT/Cranes/ Mono Rails.)

Dusting and Cleaning work of all DV houses (Total No. of DV houses =160 & total Area of DV house=900 M²)

Upkeeping of Fire Trenches in 2x660 MW CTPS, Obra and by means removal and disposal of garbage/Sludge/Ash/Coal etc. to suitable place.( Apprx:-7000 M for Obra C)

EOT/Cranes/ Mono Rails (< 10MT) Statutory Testing of Fire Pump House, Foam Pump Houses & Fire Water Booster Pump House. (Consisting of all four EOT/Cranes/ Mono Rails.)

“Round the clock Operation and Routine, Preventive, Breakdown maintenance & general cleaning work of HVAC (Heat Ventilation and Air Conditioning) system of Main Plant, Service Building including AVR Room and Adm, Building, Switchyard & BOP areas of 2X660MW , 'C'TPS, Obra, Sonebhadra

Round the clock Operation and Routine, Preventive, Breakdown maintenance & General cleaning work of HVAC (Heat Ventilation and Air Conditioning) system of Main Plant including AVR Room.

VAM / Chiller Technician for round the clock Operation of VAM- 320 TR (M/s Thremax Make-01 no.) and Chillar Units-174 TR (M/s Blue Star Make-04 nos.) & Chillar Units-160 TR (M/s Blue Star Make-02 nos.)

Round the clock Operation and Routine, Preventive, Breakdown maintenance & General cleaning work of HVAC (Heat Ventilation and Air Conditioning) system Air Cooled Condition Unit in GIS / AIS Switchyard/ DM Plant/FGD/ER-1. ( AHU & ACCU type)

Operation and Routine, Preventive, Breakdown maintenance & General cleaning work of HVAC (Heat Ventilation and Air Conditioning) system of Service Building & Adminitration Building.

Operation and Routine servicing / Preventive & Breakdown maintenance of 5.5 T (15 nos.), 8.5 T (18 nos.), 11.0 T (08 nos.), 17.0 T(08 nos.) ductable ACCUs and 9.0 T (04nos.) Precision ACs (Approx.Total 50 Nos. Dutable ACs + 04 nos. Precision ACs) and 1.5 T (Qty-50 Nos) & 2.0 T (Qty-20 Nos) Split type Air conditioners (Approx.Total 70 Nos. Split AC) installedat at Raw water Pump house/ESP control rooms/Wagon Tripler/ EDG House/ DM Plant/AHP Area/Cooling Tower SWGR/H2 Plant/ Compressor Building/ CW pump house Control room /ACW Pump House Control room/ Fuel Oil Pump House Control room/ FGD Cotrol Room// Permanent Store building/ Fire water booster pump, / Various UPS Rooms / Meeting Room etc. in BOP area.

Operation and Routine, Preventive Maintenance (Mechanical) and Operation of EOT/Cranes/ Mono Rails (>10MT) of CCB AC Plant House, Adm. Building & Service Building of 2X660MW , 'C'TPS, Obra, Sonebhadra

EOT/Cranes/ Mono Rails (>10MT) Statutory Testing of CCB AC Plant House, Adm. Building & Service Building ( Consisting of all three EOT/Cranes/ Mono Rails)

Routine maintenance & operation assistance of Air Washer system .

Round the Clock Operation and Routine / Preventive / Breakdown mechanical maintenance of M/s Techno and M/s Ali Craft make Lifts of CTPS Obra

General up keeping and Assitantance in Operation of 1. Admin Building - 01 no. 2.Service Building-02 nos., 3. TG Hall - 02 nos, 4. Boiler Passanger -02 nos, 5. Boiler Goods- 02 nos., 6.Chimney lift -01 no., 7. ABSORBER 1 & 2 - 02 nos., 8. LIME STONE CRUSHER HOUSE - 01 9. LS PREPARATION - 01 no., 10. GYPSUM DEWATERING - 01 no., 11. WWTP BUILDING -01 no., 12. CRUSHER HOUSE -01 no. 13. JT 10 & 12 - 02 nos. (Total 19 nos). Note: Carrying out above work by minimum 03 semiskilled / shift = 3*3= 9 nos.manpower required + 01 no. semiskilled in Gen. shift and 01 no skilled & 02 nos. unskilled in general shift ( Total 13 manpowers required per day)

Engagement of Field Operation Assistants (Operatiors) in shift (Round the clock) for assistance in operational activities from CCR of 2x660 MW C'TPS Obra

Preventive and Breakdown maintenance works of Main Boiler & its Auxiliaries of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA.

Attending tube leakage up to 1st ten H.P. weld joints. (irrespective of number H.P. weld joints in one frequency)

Attending tube leakages for each H.P. weld joints beyond 10Nos. of H.P. weld joint.

BOILER HP Joint Radiography

Fixing of Scaffolding during Attending Tube Leakage

Sky Clymber Installation and Removal

Eco Coils Attend defect

Stress Relieving of HP Joints

Boiler (Tube Bends) Fabrication

Boiler Segment Shield Welding

Boiler Peep/Main hole Attend Defect

Hanger Inspection

Hanger Servicing

Preventive Breakdown maintenance of Soot Blowers

Wall Blower Over hauling

Attending Defect of Soot Blower Valve

Wall Blower Serving

Operation & Maintenance of LRSB

Flange (Gasket) Replacement of soot blowers

Replacement of damaged Lance Tube of LRSB/ Swivel Tube of Wall Blowers

Preventive Breakdown maintenance of Sky Climber

Testing of Sky climber after installation

Over hauling of Sky Climber

Removal of Honey comb from Boiler

Preventive Breakdown maintenance of HP Valve

Overhauling of Safety Valve

Overhauling of Control Valve size upto 6"

Servicing of HP Valve size upto 6"

Servicing of HP Valve size above 6" to 12"

Servicing of HP Valve size above 12"

Servicing of NRV size 6" to 12"

Servicing of NRV size below 6"

Servicing of NRV size above 12"

Overhauling of E/M Relief Valve

Gland Replacement of HP Valve

Gland Replacement of LP Valve

Relpacement of HP valves (50 NB)

Relpacement of HP valves (100 NB)

Relpacement of HP valves (150 NB)

Preventive Breakdown maintenance of Boiler Fan/blower

Coupling/decoupling/ alignment of Fan/blower

Overhauling of Fan/blower

Checking of blower/fan

Checking and Fault removal of Oil gun assembly

Preventive Breakdown maintenance of Duct & Damper

Attending defect of dampers and Gate

Replacement of Damaged portion of Duct

Repair of damaged Expansion Joints

Maintanace /repair of gate

Hot Air gate servicing

Repairing/ replacement of bracing of Flue Gas up to ID fan inlet and Secondary air Ducts from APH outlet to wind box.

replacement of fuel inlet elbow/bend(spool)

Removal and Installation of Scanner hose Pipe

Preventive Breakdown maintenance of Drain Oil System

Replacement of drain oil Pump

Over hauling of drain oil System

Alignment of Lube drain oil Pump Coupling

Servicing of hoist(Load range 1 to 10 Ton)

Servicing of LP Valve size upto 6"

Replacement of LP Valve (Flange Type) size upto 6"

Insulation of Boiler and Turbine area

NDT (Die Penetration) DPT

Structural Fabrication

Online Leak sealing of leakages from Valve gland/Bonnet/Flange or Pipe Line in Boiler/Turbine area

Attending defect of online

Ring Clamp(above 2") attend defect

Box Clamp(above 9") attend defect

Online Safety Valve set pressure verification and setpressure adjustment by Valtest method for safety Valve installed in Boiler area.

Safety Valve setting

Including Traveling charges with fare expenses issued

Material (Debris) cleaning

Material scrap dispopsal

Scaffolding erection

Servicing/revisioning of boiler safety valves.

Servicing/revisioning of Soot blower safety valves.

Breakdown maintenance of Mechanical Systems of APH for 2x660 MW, CTPS Obra.

Replacement/ rectification and setting out board/ middle board/ in board radial seal and circumferential (by pass) seals and plates of hot end & cold end of Air pre-heater.

Repairing/ Replacement of static seal plates by cutting, grinding, welding after fabrication of hot end & cold end of APH for sector plate.

Repairing/ Replacement of Rotor post seal of Hot End & Cold end of APH.

Resetting/ Replacement of Axial seal and leveling of axial seal plate by means of adjusting bolt in APH

Servicing of lube oil system of Guide/ Support bearing of APH. One job includes one lube oil system of Guide/ Support bearing.

Replacement of Guide bearing

Replacement of Support Bearing

Replacement of Guide Trunion

Inspection & Housing Level Checking Of Support Bearing Or Guide Bearing

Air Seal Housing Inspection And Replacement Of Packing Rope Of Guide Or Support Bearing

Inspection Of Gear Box, Drive Pinion & Pin Rack

Gear Boxes Overhauling (RDU/SDU)

PM Of Air Motor And Associated Valves/ Lines

Servicing/ Replacement Of Air Motor And Associated Valves/ Lines

Repair/ Cleaning Or Replacement Of APH Wash And Firefighting Lines

Trial Run Of Air Heater

Air Receiver Tanks Testing

Replacement Of Main Drive Gear Box

Air Seal Assembly Repair

Rotor Inspection

Overhauling of APH soot blowers

Attending defects of APH soot blowers

Servicing of APH soot blower

Flange gasket replacement of pipe/ valves

Replacement of pump

Replacement/ servicing of bearing of pumps

Overhauling of pumps

De-coupling, coupling and Alignment of pumps (wash Water/SCAPH drain etc)

Breakdown maintenance of Mechanical Systems of ESP for 2x660 MW, CTPS Obra.

Cleaning of complete structure, electrodes, shock bar, rapping mechanism, insulators & hoppers from inside of ESP of one fields by wire brush, hard broom and old cloth/water washing.

Replacement of rapping hammer.

Replacement of plane bearing of rapping mechanism.

Repairing of rapping shaft.

Straightening of rapping shaft.

Replacement of rapping shaft.

Repairing of bent collecting electrodes in ESP chamber in fix position.

Fixing of collecting electrodes with clamp/strip by bolting & welding.

Repair/Replacement of shock bar.

Replacement of shock pads.

Repairing of shock bar guide (front/ rear) and shock bar guide attachment by welding or grinding wherever required.

Straightening of bent stay guide bar of collecting structure.

Removal of damaged emitting electrode and fixing the new emitting electrode(strip).

Changing of damaged support Insulator.

Changing of damaged Shaft Insulator.

Alignment of disturbed emitting structure.

Repairing of support insulator screen pipe inside the ESP

Replacement of asbestos rope of ESP shaft insulators cover.

Replacement of damaged motor gear box of rapping system.

Repairing of damaged rapping gear box.

Repairing of coupling of reduction gear box of collecting/emitting/GD rapping system.

Replacement of asbestos rope of ESP hopper manhole/Casing manhole/Casing top manhole

Repairing of manhole by replacing the damaged plate portion with new one..

Repairing of eroded portion by welding in ash hopper, ESP roof and other places inside and outside of the ESP chamber.

Repair/ fixing/welding of ash deflector plate.

Repairing/ Re fabrication of support of duct plate at ESP inlet.

Repairing of bracings between ESP inlet gate and GD Screen and rear side of ESP by providing patch at eroded area or changing new piece by bracing pipe as per size.

Repairing /refixing of deflector plate on gas distribution screen

Inspection and checking of ESP field and removal of minor defect.

Repairing of GD Screen

Servicing of monorail

Preventive and Breakdown maintenance works of Main Turbine and its Associated Auxiliaries, CW & ACW System and EOT Cranes/Monorail Cranes for 2x660MW Units.

Breakdown maintenance of Main TG area auxiliaries like BFP, CEP, Vacuum pump, DMCW Pump & other small pumps for 2x660MW Units

Re-visioning/ Replacement of DE journal bearing of MDBFP/ TDBFP Booster Pump.

Re-visioning/ Replacement of NDE journal bearing of MDBFP/ TDBFP Booster Pump.

Re-visioning/ Replacement of NDE Thrust Bearing of MDBFP/ TDBFP Booster Pump.

Re-visioning/ Replacement of NDE Mech. Seal of MDBFP/ TDBFP Booster Pump.

Re-visioning/ Replacement of DE Mech. Seal of MDBFP/ TDBFP Booster Pump.

Inspection/ Minor Overhauling of Booster Pump of TDBFP/ MDBFP.

Re-visioning/ Replacement of DE journal bearing of MDBFP/TDBFP

Re-visioning/ Replacement of NDE journal bearing of MDBFP/ TDBFP.

Re-visioning/ Replacement of NDE Thrust Bearing of MDBFP/ TDBFP.

Re-visioning/ Replacement of NDE Mech. Seal of MDBFP/ TDBFP.

Re-visioning/ Replacement of DE Mech. Seal of MDBFP/TDBFP

Thread out of BFP Cartridge as per the scope of work.

Thread in of BFP Cartridge as per the scope of work.

Miscellaneous revisioning work of Hydraulic coupling

Re-visioning of Thrust cum radial bearing no. 1 of BFP-Turbine.

Re-visioning of rear journal bearing no. 2 of BFP-Turbine

Inspection/ overhauling of Gear Box of BFP Turbine.

Inspection/ rectification/ replacement of thrust cum radial bearing of CEP

Inspection/ rectification/ replacement of thrust cum radial bearing of Drip Pump

Re-visioning/ replacement of Mech. Seal of CEP

Re-visioning/ replacement of Mech. Seal of Drip pump

Complete Overhauling of Condensate Extraction Pump.

Replacement of Condensate Extraction Pump

Complete Overhauling of Drip Pump.

Axial & Radial alignment of horizontal equipment like MDBFP to Hydraulic coupling/ Hydraulic coupling to Motor/ Motor to Booster pump/ TDBFP to Drive Turbine/ Drive Turbine to Gear box/ Gear box to Booster pump

Complete servicing/overhauling of vacuum pump.

Replacement/Servicing of DE bearing of main vacuums pump.

Replacement/Servicing of NDE bearing of main vacuum pump.

Replacement of DE Mechanical Seal/ gland of main vacuum pump.

Replacement of NDE Mechanical Seal/ gland of main vacuum pump.

Replacement/Servicing of White metal bearing of Motor. (Booster Pump side /Hydraulic Coupling side).

Servicing/ Overhauling Portable Oil Purifier of MDBFP.

Overhauling of TDBFP/ Main TG/CLOST -transfer oil pump/oil purifier gear type oil pump

Axial and radial alignment of Vertical pump like Tank mounted lube oil pump of Main TG/ BFPT& condensate pump-CEP/Drip Pump

High Capacity horizontal pump alignment

Low capacity horizontal pump alignment.

Replacement of coupling of equipment like of MDBFP/ TDBFP/CEP/Drip pump/Vacuum pump//DMCW pump/MOP/EOP of Main Turbine & BFP Drive Turbine.

Arresting oil leakage through the felt ring of MOP of Main Turbine/ Drive Turbine

Replacement of Main TG (Tank Mounted) MOP/EOP/TDBFP MOP/TDBFP EOP/MDBFP AOP

Rev/ Replacement of bearing of MOP/ EOP of main turbine/ BFP drive Turbine/ MDBFP AOP (One job consists of one pump).

Low-capacity water & Oil service Pump Mechanical Seal replacement

Low-capacity water & Oil service Pump Bearing replacement

Complete Overhauling/ Servicing of Low-capacity water & oil service pump.

Repair/ Overhauling of DMCW Pump

O/H of Vapor extractor of MOT/ Control Fluid Tank/ TDBFP Oil Tank/GSC vapor extractor.

O/H of Sump Pump/ Dewatering Pump

Replacement/ Inspection/ Revisioning of EH control oil unit pump of Main Turbine/ HP bypass valve

Checking & filling of N2 gas in accumulators

Replacement of N2 Bladders/ Service of accumulators of oil tank.

Overhauling of Hydrazine/ Ammonia dosing pump

TG Hall (140/25 MT) / BFP EOT (70/5 MT) EOT Crane –Attend Defect

Inspection, Testing & Issue of required Statutory test certificate for TG Hall (140/25 MT) / BFP EOT (70/5 MT) EOT Crane

Breakdown maintenance work of TG Area: Tanks/ Heaters/ Strainers/Condenser for 2x660MW Units

Replacement of the Burst Atmospheric relief Diaphragm of LP Turbine/ Drive Turbine.

Inspection of last stage blades of LP Turbine and minor repair work if required.

Oil Replacement/Tank cleaning & Minor revisioning of Main Turbine EHC unit Oil /Turbine HP Bypass Oil.

Steam Turbine Preservation

CEP /BFP-BP/DMCW Pump (Suction Strainer) Cleaning

BFP Main pump Suction Strainer Cleaning

MOT Duplex Filter/ Return oil MOT strainers Cleaning

Centrifuging of Lube Oil through Portable Centrifuging machine. Operation of External Centrifuge/Purifier on Lube oil/Control fluid system/oil barrels

Bowl cleaning of Portable centrifuge

Cartridges replacement of Main Turbine/Drive Turbine/CLOST Oil Conditioners

Inspection/ cleaning, flushing and normalization of Deaerator

Inspection/ cleaning, flushing and normalization of Condenser hot well

Condenser (WATERBOX) Cleaning

Inspection, cleaning, and adjustment of Condenser COLTCS Screen

Tank Cleaning -TG DMCW O/H tank / Drip tank/ flash tank (either of LP/HP/Atm FT/). (One job consists of one tank)

Inspection and Cleaning of MOT Tank/COT/DOT Tank

Inspection and Cleaning TDBFP MOT Tank

Inspection/ Cleaning of MOT Oil Plate Heat Exchanger

Inspection/ Cleaning of MDBFP & TDBFP Lube oil /working oil Plate Heat Exchanger

HP Heater / LP Heater /DE superheater/GSC Internal inspection/servicing & attend tube leakage

HP Heater/ LP Heater /DE Superheater/ GSC manhole door gasket replacement

Tube & Shell type cooler cleaning

Cleaning of sump pits of TG Area.

Filling, Flushing, and normalization of TG DMCW System

Performing of system vacuum and Condenser tube leak test and attending all the leakages by plugging and welding, if any.

Hanger Check and attend defect

Revisioning / Servicing of Ball Collector of Condenser Tube Cleaning System.

Inspection/ minor repairing of ball catch strainer of condenser tube cleaning system installed inside CW return line..

Cleaning of CEP Pit/ Condenser Pit/ BFPT Pit/ MOT pit

Breakdown maintenance work of TG Area: Servicing/ overhauling of Valves/ NRV/PRV for 2x660MW Units

Main TG/BFPT: MSV/MCV servomotor servicing

HP/ LP BP Valve Servicing

LP Valve Servicing: motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Día < 6”) Class: 150-800.

LP Valve Servicing: motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Día 6" - 12”) Class: 150-800.

LP Valve Servicing (per mm dia. Basis): motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Dia >12”) Class: 150-800.

HP Valve Servicing: motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Dia < 6”) Class: >800.

HP Valve Servicing: motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Dia 6" - 12") Class: >800.

HP Valve Servicing (per mm dia. Basis): motor/ pneumatic operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves of Size: (Dia >12") Class: >800.

Replacement of gland packing of HP / LP Valves on per mm. dia. basis of valve.

Repair/ Replacement of LP piping by cutting & welding on per mm ID basis.

Replacement of flange type gate / globe valves/butterfly valves of LP lines on per mm dia. basis of valve.

High pressure TIG Welding per one inch of welding

Safety Valve (1”-4") Servicing

Safety Valve (>4”-8") Servicing

Safety Valve (>8") Servicing

Revisioning / Servicing of Butterfly valves; Size: <6”

Revisioning / Servicing of Butterfly valves; Size: 6” – 12”

Revisioning / Servicing of Butterfly valve Size: >12”

Servicing of valve Gear Box Size: Up to 12”

Servicing of valve Gear Box Size: > 12”

Flange (Above DN300) Attend Defect

Replacement of flange gasket of HP/ LP valves, Piping & fittings on per mm dia. basis of valve.

Expansion Joints (UPTO 1000MM) Replacement

Breakdown maintenance work of TG Area: Replacement of Valves/ NRV/PRV & Miscellaneous work for 2x660MW Units

LP Valves -Replacement on per mm dia basis, Class: 150-800

HP valves- Replacement on per mm dia basis, Class: > 800

Steam Piping (DIA<=6") Stress Relieving

Steam Piping (DIA>6") Stress Relieving

Fabrication & Erection of platform, stairs & Rack on Tonnage basis

Erection of Scaffolding

Breakdown maintenance CW Pumps ACW Pumps CW sealing cooling pump ACW Self Cleaning strainer ACW PHE (Plate Heat Exchanger) Valves/Butterfly valves associated with CW & ACW system alongwith EOT crane and Monorail Crane

Decoupling & coupling of motor and CW pump (while motor replacement)/motor removal and fitting of motor of CW pump

Alignment of motor and CW pump

Gland replacement and tightening of glands in stuffing box for arresting leakage in CW pump

Break down maintenance/Overhauling of CW pump

Decoupling & coupling of motor and ACW pump with adjustment of pump lift (while motor replacement)/motor removal and fitting of ACW motor

Alignment of motor and ACW pump

Gland replacement and tightening of glands in stuffing box for arresting leakage in ACW pump

Replacement of thrust bearing/spherical roller bearing

Break down maintenance/Overhauling of ACW pump

Fabrication/Repairing/Cleaning of log screen/log gateof CW PUMP

Fabrication/Repairing/Cleaning of log screen/log gate of ACW PUMP

Servicing/Maintenance of Lube water cooling pump and attend defect

Cleaning / replacement of filter in duplex filter of Lube Water cooling system of CW Pump

Cleaning of mesh of self-cleaning strainer

Servicing of self-cleaning strainer (including drive assembly)

Inspection/Cleaning and reconditioning of plate heat exchanger (PHE) OF ACW line

Servicing/maintenance of Air release vent (ARV) / Isolation valve and attend defect

Servicing/maintenance of gear box of Butterfly valve

Replacement of Rubber sealing ring of Butterfly valve

Replacement of Expansion bellow

Cleaning of sump pit of CW/ACW Pump

CWPH EOT crane/ Mono rail Crane - Attend defect

Inspection, Testing & Issue of required Statutory test certificate for CWPH EOT Crane / Mono Rail Crane

Preventive and Breakdown Mechanical Maintenance Works of Milling System, RC Feeder, Coal Mill Reject System, ID, FD, PA Fan, Hydrogen Generation Plant and Its Associated System of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA.

Preventive and Breakdown Mechanical Maintenance of Bowl Mills and Its Associated System of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Inspection/Replacement of Mill Coupling

Oil Replacement of Mill Roller Assembly/Gear Box/Centrifuging of Oil

Replacement & Servicing of Bowl Mill Spring

Replacement of Bull Ring Segment

Adjustment/Repair of Separator Body Assembly/Classifier Servicing

MDV/Burner Inlet Gate (BIG)/Variable Orifice/Transition Piece Replacement

Repair/Replacement of Scraper Assembly

Replacement/Checking of Labyrinth Seal Assembly Per mill

Mill Gearbox Input Shaft/Bearing Replacement

Cleaning, Greasing, Servicing of electrically operated hoist.

Structure Fabrication

Replacement of Roller Journal assembly

Changing Trunnion Position of RJ Assembly (One Trunnion of One Mill Makes One Job)

Replacement of Worn Out Grinding Roll With New/Healthy One including Servicing of RJ assembly

Repairing of Complete One Set Louvre Ring Assembly (One Set Consist of 08 Pieces)

Repairing/Replacement of Bowl Extension Ring Segment.

Repairing Eroded Portion of Classifier Inner Cone

Complete Dense Hard Facing of Cap of Louvre Ring Assembly & Extension Ring (With L&T-670/700 Hard Facing Electrode)

Servicing of Lube Oil System of Mills (One Mill Makes One Job)

Servicing of pressure spring assembly (one spring assembly of any mill shall be considered as one quantity)

Replacement/servicing of journal stop bolt

Checking/replacement of (leaking) victaulic coupling rubber gasket of MDV/Transition piece

Replacement/refitting/servicing of classifier blade

Replacement of mill side liner

Repairing of Mill side liners by patching/welding

Repairing/Replacement of mill side bottom liner

Checking/Replacement of bottom insulation covers plate (Complete set)

Repairing of bottom insulation cover plate

Servicing of seal air valve on seal air header of mills

Cleaning/ Removal of choking from the split raw coal pipe from bunker outlet gate to bowl mill of Unit # 1 & 2 (mainly during rainy season) choked due to wet coal in the form of slurry/sticky.

Preventive and Breakdown Mechanical Maintenance of RC Feeders and Coal Pipes of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Inspection and Maintenance of Gravimetric Feeder

Replacement of Belt

Replacement of Belt Drive Reducer

Servicing of Belt Drive Reducer & Eddy Current Clutch Coupling

Replacement of Clean Out Conveyor Drive Reducer

Servicing of Clean Out Conveyor Drive Reducer

Replacement of Head/Tail Pulleys/Idlers/COC Shaft of Coal Feeder

Servicing of Feeder Inlet/Outlet Gates/ Bunker Outlet Gates

Feeder Bearing Replacement

Attending Breakdown of Feeder

Removal of Choking From Coal Pipe

Replacement of Center Feed Pipe Coupling Area With SS Spool Piece

Replacement of Coal Pipe Coupling Gasket/Coupling Assembly

Attending Coal Dust Leakage

Welding/ Patch Welding Work For Repairing

Straight Pipe Rotation/ Replacement of Pulverizer Fuel Pipe

Coal Pipe Bend Replacement

Repairing/Adjustment of Fuel Piping Supports/ Hangers

Preventive and Breakdown Mechanical Maintenance of Coal Mill Reject System and Its Associated System of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Round the Clock Handling, Lifting, and Shifting of Coal Mill Reject from the Following Areas of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Mill floor at ‘0’ meter

Below the SILO

Preventive and Breakdown Mechanical Maintenance of ID, FD, PA Fan and Its Associated System of Unit # 1 & 2 of 2X660 MW, CTPS, OBRA

Repairing of ID/FD/PA Fan

Arresting of Lube Oil Leakage (Inside Casing) of ID/FD/PA Fan

Maintenance of Lube Oil System of ID/FD/PA Fan

Maintenance of Mill Seal Air Fan/ID Fan Seal Air Fan

Overhauling of Mill Seal Air Fan/ID Fan Seal Air Fans

De-Coupling, Coupling And Alignment Of Mill Seal Air Fan/ID Fan Seal Air Fan

Preventive and Breakdown maintenance of complete Water System including WTP, Raw Water, Clarified Water, Waste Water Treatment Plant, IDCT system

Breakdown mechanical maintenance of Pre-Treatment Plant, DM Plant, Effluent Treatment Plant and other associated work

Servicing/repairing of Valves (gate/globe/NRV/ butterfly/ diaphragm valves) (Dia<= 100mm)

Servicing/repairing of Valves (gate/globe/NRV/butterfly/ diaphragm valves (Dia 100mm- 200mm)

Servicing/repairing of Valves(gate/globe/NRV/butterfly/ diaphragm valves (Dia >200mm)

Overhauling of Valves (gate/globe/ nrv/butterfly/ diaphragm valves (Dia<= 100mm)-

Overhauling of Valves(gate/globe/NRV/butterfly/ diaphragm valves (Dia 100mm- 200mm)

Overhauling of Valves(gate/globe/NRV/butterfly/ diaphragm valves ( Dia >200mm)

Replacement of Valves (gate/globe/ nrv/butterfly/ diaphragm valves (Dia<= 100mm)

Replacement of Valves (gate/globe/ nrv/butterfly/ diaphragm valves ( Dia 100mm- 200mm)

Replacement of Valves (gate/globe/ NRV/butterfly/ diaphragm valves ( Dia >200mm)

Overhauling of Horizontal Pump: - (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make-Up, and Pumps associated with PT Plant, DM Plant, ETP Plant. ( Dia <100 mm)

Overhauling of Horizontal Pump: - (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make-Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) ( Dia 100 mm- 200mm)

Overhauling of Horizontal Pump: - (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make-Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) ( Dia >200mm)

Overhauling of Horizontal Pump: - (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make-Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) ( Dia 100 mm- 200mm)

Alignment of Horizontal Pumps(DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) (Dia <100 mm)

Alignment of Horizontal Pumps(DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) ( Dia 100 mm- 200mm)

Alignment of Horizontal Pumps(DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) ( Dia > 200mm)

Servicing of Horizontal Pumps:- (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.)(Dia < 100 mm)

Servicing of Horizontal Pumps:- (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant.) (Dia 100 mm-200 mm)

Servicing of Horizontal Pumps:- (DM Make Up, Backwash, Degassed water, Potable Water, CPU Regeneration, Emergency Hot Well Make Up, and Pumps associated with PT Plant, DM Plant, ETP Plant. (Dia >200 mm)

Overhauling of Agitators/Flocculators (Of all chemical tanks and clarifiers

Servicing of Agitators (Of all chemical tanks and clarifiers

Overhauling of Clariflocculator

Overhauling of Blowers

Bearing replacement of Blowers

Belt replacement of Blowers

Overhauling of Reciprocating pumps

Servicing of Reciprocating pumps

Servicing of NRV

Servicing of Screw pump/Compressor

Overhauling of Screw pump/Compressor

Choking Removal of GI Pipes

Servicing of Water Channel Gates

Gland replacement of LP Water Pumps

Attending Defects in Flanges

Choking Removal of clariflocculator

Servicing of Clariflocculator Drive

Repair/Replacement of rail of Clariflocculator/Electrical Hoist

Repair/servicing of Clariflocculator Scrapers (Replacement of CCF scrapper structure of ETP & PT-CW Clariflocculator

Lifting of water Channel Gates

Miscellaneous Welding Works

Replacement of the Cartridge Filter Element of RO /UF Water System

Inspection, Repair and Replacement of the RO/UF Membranes of RO Water System

Attending Defects in HDPE pipes

Laying of HDPE pipes

Erection/laying of SS Lines

Replacement of Pressure Vessels for RO/UF of RO Water System

Replacement of Victaulic coupling/bushes, CPVC Valves & Fitting of RO /UF Water System

Inspection of Pressure Vessels

Servicing of V/V gear box (100mm-200mm)

Cleaning of Tanks ((RO, UF, DM WATER, FILTER WATER & CST WATER TANKS)

Overhauling of Vertical pumps (100 mm – 200 mm)

Overhauling of Vertical pumps (Dia 200 mm – 300 mm)

Overhauling of Vertical pumps (Dia >=300 mm)

Providing a diving team of 3 divers and one supervisor

Replacement of seal of Butterfly Valves (>300mm)

Servicing of Butterfly Valves(>300mm)

EOT/Cranes (>15-30MT) servicing:-

Cleaning of Pit/Sump

Replacement of MS piping (100mm-200mm)

Replacement of MSRL Pipes

Attending Defects in Expansion Joints (of RW intake/supply pump etc.)

Laying of ERW Pipes

Bulk Chemicals (RESINS/Activated carbon/dual media/sand) Handling & Stacking

Overhauling of vessel (Ion exchanger Like SAC/WAC, SBA/WBA, MB, CIP, CPU & CPU Regeneration Vessel/ ACF/DMF & Other Vessels.)

Servicing of air blower (Degasser blower, Caustic Blower, MB Blower, Sludge Pump Blower,Dual Media Filter Blower, CPU Blower, ETP Blowers etc.)

Strainer Cleaning/choking removal

Replacement/filling of Resin (ion exchangers/CPU and Nozzle Replacement work/Carbon replacement in ACF/Repairing work of CPU Vessel)

Servicing of diaphragm chamber/oil pressure relief valves (of alum/coagulant aid dosing pump/chemical dosing pump)

Attending gland leakage of various pumps and valves

Maintenance of gear box of PT-CW/ETP Clarifier/Flocculator

Coupling Bush replacement and alignment in vertical pump

Laying of MS pipe line

Maintenance of Air Vent & A.R.V

Cleaning of Trash Rack: (RW INTAKE/SUPPLY.P.H): 1 set = complete trash rack installed for one no. of pump.)

Cleaning of Travelling screen: (RW INTAKE)

PAINTING

Replacement/servicing/repairing of ejectors

Rubber lining/re-rubber lining of tanks/valves/pipings/Tee/Bends et.

Re rubber lining of Acid /Alkali/FeCl3/PE/Brine solution/ ARU/CRU/CMB/N.pit/RO/UF cleaning solution etc. dosing/ measuring Tanks with two layer of neoprene rubber each have thickness of 2.5 mm.

Re rubber lining of one stream of cation tank with two layer of neoprene rubber each have thickness of 2.5 mm.

Re rubber lining of one stream of Degasser tank with two layer of neoprene rubber each have thickness of 2.5 mm.

Re rubber lining of one stream of anion tank with two layer of neoprene rubber each have thickness of 2.5 mm.

Re rubber lining of one stream of mixed bed tank with two layer of neoprene rubber each have thickness of 2.5 mm.

Rubber lining/ re- rubber lining of pipe/ bends/ Tee including both side flanges etc. (including fabrication works for flanges joining) with new pipe having sizes from 25 NB to 250 NB. (Running Meter measured at center line of pipes used).

Protective coating of Epoxy paint including removal of old paint, rusted surface, preparation of surface by sand blasting, two coat of epoxy primer and two or more coat of epoxy paint on outer surface of Acid storage tanks / Alum Solution Preparation Tank (PAC storage Tank) / DM water stream tanks/structures of Acid / Alkali unloading rack / other vessels / pipes of various sizes / bends / tee’s / and other Misc. work.

Breakdown mechanical maintenance of CW/RW/PW Chlorination Plant, CW Treatment Plant & Side Stream Filtration Plant and other associated work.

Servicing of CW chlorinator

Servicing of RW chlorinator

Servicing of CW evaporator.

Servicing of RW evaporator

Replacement /servicing of CW/RW/PW Remote Vacuum regulator

Replacement /servicing of CW/RW/PW pressure relief valve

Replacement /servicing of CW/RW /PW Flow meter

Replacement /servicing of CW/RW /PW Flow Control valve

Replacement/ Servicing of CW Differential Pressure Regulator

Servicing of PW chlorinator.

Servicing/cleaning of CW Cl2 absorption tower with suction duct network

Repairing /Servicing of CW Injector assembly with associated NRVs/valves

Repairing /Servicing of RW Injector assembly with associated NRVs/valves -

Repairing /Servicing of PW Injector assembly with associated NRVs/valves -

Repairing /Servicing of complete tonner manifold of CW with associated valves & expansion cylinders -

Repairing /servicing of complete tonner manifold of RW with associated valves-

Repairing /servicing of CW chlorine dispenser lines of one chlorinator & evaporator with associated valves & filters

Repairing /servicing of PW chlorine dispenser lines of one chlorinator with associated valves & filters

Repairing /servicing of RW chlorine dispenser lines of one chlorinator with associated valves & filters

Replacement of coupling and Alignment of Booster pump

Replacement of coupling and Alignment of Recirculation pump

Servicing of caustic recirculation pump

Servicing of CW Booster pump

Overhauling of caustic recirculation Booster pump

Overhauling of CW Booster pump

Servicing of caustic Blowers

Overhauling of caustic Blowers

Bearing replacement of different pumps

Bearing replacement of Blower

Repairing /Servicing of valves sizes 0mm-50mm

Repairing /Servicing of valves sizes 50 mm -100 mm- Similar as Item no. 11.117

Repairing /Servicing of valves sizes 100mm -200mm- Similar as Item no. 11.117

Repairing /Servicing of PP diaphragm/check valves sizes -0mm- 80mm

Repairing/servicing of CPVC NRV/BALL valve 0MM-50 mm

Repairing/servicing of CPVC BF/Check Valve 100mm-150 mm

Repair of MS pipeline work to arrest leakage

Repair of HDPE pipeline for CW to arrest leakage of chlorine solution

Repair of HDPE pipeline for RW to arrest leakage of chlorine solution

Repairing /servicing of CW Forebay chlorine solution diffuser with associated valves

Repairing /servicing of RW parshall flume chlorine solution diffuser with associated valves

Replacement of CW chlorinator PVC vacuum pipeline with associated bends, tees, unions, flanges etc

Replacement of RW/PW chlorinator PVC vacuum pipeline with associated bends, tees, unions, flanges etc

Fabrication of lead gaskets ID 13mm, OD :20MM Thickness : 3mm (as per sample)

Refilling with maintenance /serving of oxygen cylinder and safety set

Repairing /Servicing of emergency shower with associated pipe line & valve connected to source

Servicing of CW/RW line strainers

Attending B/D by re-rubber lining of different pipes, bend, pipes, Tee & Cross

Repairing /Servicing & revisioning of stroke adjustment of Acid dosing pump/scale inhibitor/corrosion inhibitor /biocide dosing pump

Complete cleaning & removal of foreign-material from scale inhibitor /corrosion inhibitor/biocide tanks, their strainer, backwashing of tank & Cleaning & flushing of pipe lines

Repairing/Servicing of agitator of scale inhibitor tank/corrosion tank/bio dispersant tank of dosing system

Repairing/Servicing of acid unloading pumps along with suction and discharge valve

Attending leakage in pipe lines

Repairing/servicing of PTFE NRV/BALL/Diaphragm valve up to 50 mm

Painting of Acid Storage Tank, Acid/Scale/ Corrosion inhibitor/ biocide measuring Tanks (Note : Paint and primer is in the contractor scope)

Overhauling of SSF Filter Back wash Pump

Servicing of SSF Filter Back wash Pump

Overhauling of SSF Air blower

Servicing of SSF Air blower

Replacement of Bearing of Filter Back wash Pump:-

Replacement of Bearing of Filter Back wash blowers

Replacement of coupling, Alignment & balancing of Back wash pumps

Cleaning /removal of mud/sludge from SSF Backwash Water Pit and its disposal

Miscellaneous repairing / welding work of MS Pipe lines

Replacement/ Top up of media (sand) per m3

Inspection of Pressure Vessels

Cleaning of Pressure Vessels

Gland replacement of Water Pumps:-

Attending Defects in Flanges

Attending gland leakage of various pumps and valves

Breakdown mechanical maintenance of induced drought cooling tower system of 2x660 MW, CTPS, Obra.

CT Fan (DRIVE SHAFT) ALIGNING

CT Fan (HUB/HUB COVER) Replacement

CT Fan (BLADES) SETTING

CT Dist Pipe/Nozzles Cleaning

CT Fan(G.box) (OIL) Replacement

CT Fan(G.box) O/H

CT Fan(G.box) (OILSEAL) Replacement

CT Fan (DRIVE SHAFT) Replacement

CT Fan (BLADES) Replacement

CT Basin Cleaning

CT Fill Packs Cleaning(Online)

CT Fill Packs Cleaning

BFV (SEAL) Replacement

BFV (900NB) Servicing

Servicing of Centrifugal Sludge disposal pump

Over Hauling of Sludge Pump

Misc Works - WELDING /Patching etc.

Servicing of Water Channel Gates

Servicing of stop log gate as per scope of work

Breakdown mechanical maintenance works of M/s Atlas Copco make Service Air Compressor (03Nos,2W+1S), Instrument Air Compressors (03Nos., 2W+1S), Air Driers (03Nos., 2W+1S), Air Receivers(16 Nos.) as per site requirement including assistance in A.M.C of above equipmentsof 2X660MW , 'C'TPS, Obra, Sonebhadra.

Replacement of pipe lines by cutting & welding of different sizes of Compressed Air System (It includes its transportation from store to site, replacement of pipes and transportation of damaged pipe lines back to site store.)

Replacement of 200/150 NB size GI pipe by cutting and welding

Replacement of 100/80/65/50/40/32/25/15 NB size GI pipe by cutting and welding

Replacement of different types of valves of Compressesd Air System ( It includes transportation of valves from store to site, replacement of valve and transportation of damaged valve back to store.)

15/25/40/50/80 NB size Gate Valve/ GlobeValves/Ball VAlves and NRVs

100/150/200 NB size Gate Valve/ GlobeValves/Ball VAlves and NRVs

25/50/65/80 NB size Buterfly Valve

100/150/200 NB size Buterfly Valve

Breakdown mechanical maintenance of Fire Detection and Protection System including Inert Gas system of 2X660MW , 'C'TPS, Obra, Sonebhadra.

Preventive & Break dowm maintenance of Fire Fighting Pumps

Maintenance / overhauling of Hydrant Pump /Spray pump (motor/diesel engine driven)

Maintenance/ overhauling of Jockey Pump

Replacement of damaged bearing including all related works along with alignment for Hydrant Pump/Spray Pump 410 Cubic Mtrs per hour capacity.

Replacement of damaged bearing including all related works along with alignment for 40 Cubic Mtrs per Hour capacity Jockey pump

Replacement of different types of valves of Fire Fighting System ( It includes transportation of valves from store to site, replacement of valve and transportation of damaged valve back to store.)

250/300/350/400 mm size Gate Valve or NRV

25/40/50/80/100/150/200 NB size Gate Valve or NRV

80/100/150/200/250 NB size Buterfly Valve

65/80/100/150 NB size Deluge Valve or Alarm Valve.

Replacement of pipe lines by cutting & welding of different sizes of Fire Fighting System (It includes its transportation from store to site, Replacement of pipe lines and transportation of damaged pipe line back to site store.)

Replacement of 300/400 NB size of pipe by cutting and welding

Replacement of 250/200 NB size of pipe by cutting and welding

Replacement of 150/100/80/65/50/40/32/25/15 NB size of pipe by cutting and welding

Replacement of 150/200 NB size of pipe by cutting and welding at a height.

Maintenance / repairing of 350//250 mm C.I. Isolating gate valves (fabricating , fixing & lapping of new brass seat rings in valve body & gate seat after removal of damaged ones, repair /replacement of wedge nut ,spindle, key , keyway ,gears, etc)

Maintenance / repairing of 100/80/65 mm C.I. Isolating gate valves (fabricating , fixing & lapping of new brass seat rings in valve body & gate seat after removal of damaged ones, repair /replacement of wedge nut ,spindle, key , keyway ,gears, etc)

Maintenance of 350/250 mm C.I. swing type Non Return Valve

Maintenance of 200/150 mm C.I. swing type Non Return Valve

Maintenance of 100/80/65 mm C.I. swing type Non Return Valve

Overhauling(cleaning, repairing , replacement of damaged parts etc) of 350/300/250/200mm Y-type Strainer

Overhauling(cleaning, repairing , replacement of damaged parts etc) of 150/100/80/65/50mm Y-type Strainer

Fabrication & fitting of flap seat of 350//250/200 mm swing type NRV

Fabrication & fitting of flap seat of 200/150 mm swing type NRV

Fabrication & fitting of flap seat of 100/80/65 mm swing type NRV

Fabrication & fitting of complete hinge-lever of 250/200/150 mm swing type NRV

Fabrication & fitting of complete hinge-lever of 100/80/65 mm swing type NRV

Filling of gland packing in stuffing box of valves (350-200 mm)

Filling of gland packing in stuffing box of valves (150-50 mm)

Maintenance of Air release valve 25mm/40mm

Maintenance / overhauling of 150 /100mm Deluge valve

Maintenance / overhauling of 80 mm Deluge valve

Maintenance/servicing of 150/100 mm butterfly valve

Maintenance/servicing of 80 /65 mm butterfly valve

Maintenance of 100 /80 mm C.I. Isolating Valve installed underground in the chamber

Maintenance of 200 /150 mm C.I. Isolating Valve installed underground in the chamber

Maintenance of Hydrant valve75 mm inlet and 63 mm(monitor) out let

Maintenance of Foam Pump (Electric motor Driven)

Servicing of Diesel Engine of Hydrant/Spray/Booster pumps

Maintenance of 50/40 mm Inline Balance Pressure Foam Proportioner)

Maintenance of Foam Maker

Cleaning & servicing of basket type strainer 150 mm in Fixed Foam pourer pump house/system

Maintenance of C.S./S.S. valves/check valve (25 mm - 40 mm) in Fixed Foam pourer pump House/ system

Maintenance of Y type Strainer 32 NB (S.S.) in Fixed Foam pourer pump house/system

Maintenance of booster pump(Electric motor/Diesel Engine)

Leakage arresting work in underground pipe line at approx. 1.5 meter depth.

Leakage arresting work in water lines laid at ground level.

Leakage arresting work in water lines running overhead.

For arresting leakage in pipe lines laid above ground or inside of trenches by providing clamp.

Servicing of Inert Gas flooding system.

Maintenance / repairing of 200/150 mm C.I. Isolating gate valves (fabricating , fixing & lapping of new brass seat rings in valve body & gate seat after removal of damaged ones, repair /replacement of wedge nut ,spindle, key , keyway ,gears, etc)

Replacement of pipe lines by cutting & welding of different sizes of Fire Fighting System (It includes its transportation from store to site, Replacement of pipe lines and transportation of damaged pipe line back to site store.)

Breakdown maintenance of damaged/defective spare parts of VAM (M/s Thremax Make), Chiller Units (M/s Blue Star make), AHUs(M/s Edgetake make), Ductable ACs, Precision ACs installed at Main Plant, Service Building including AVR Room, Adm. Building, ESP control rooms, Switch Yard & BOP areas and 1.5/ 2.0 Ton Split type Air conditioners installed at various UPS Room /Raw water Pump house/Wagon Tripler/ EDG House/ DM Plant/AHP Area/Cooling Tower SWGR/H2 Plant/ Compressor Building/ CW pump house Control room /ACW Pump House Control room/ Fuel Oil Pump House Control room/ FGD Cotrol Room/ Permanent Store building/ Fire water booster pump / Meeting Room etc. in BOP area of 2X660MW , 'C'TPS, Obra, Sonebhadra

Inspection / Sevicing of Air Handling Units (M/s Edgetake make) ( Total 32 nos.) (Inspection of one AHU cosidered as one Job)

Complete overhauling of AHUs

AHU/Blwr (FILTER) Cleaning

AHU/Blwr (DRIVE BELT) Replacement

AHU/Blwr BRG replacement

AHU Blwr OH

Air Washer Unit (TANK) Cleaning

Air Washer Unit (NOZZLE) Cleaning

Chiller Pump Decpl/Cpl/Algn

Chiller Pump OH

Chiller Pump servicing

Cooling Tower Cleaning

Chiller Unit Attend Defect

Chiller Unit Gas Filling

Duct (AC SYS FLEX) OH

Cooling Tower OH

Air Washer Unit OH

Chiller Unit Cleaning

Condensate Pump Decpl/Cpl/Algn

Condensate Pump OH

Desuperheater Pump OH

Desuperheater Pump Decpl/Cpl/Algn

Condenser Pump OH

Condenser Pump Decpl/Cpl/Algn

Replacement of 1.5 / 2.0 Ton burnt compressor

Gas charging in 1.5 / 2.0 Ton Compressor (R-32).

Replacement of Strainer filter of 1.5/ 2.0 Ton Split AC

Replacement of Starting capacitor/ running capacitor of 1.5 / 2.0 Ton split AC

Replacement of Thermostat of 1.5 / 2.0 Ton split type Air conditioner

Replacement of Blade of fan blower of 1.5 / 2.0 Ton split type Air conditioner

Replacement of Fan motor capacitor of 1.5 / 2.0 Ton split type Air conditioner

Rewinding of outer blower motor of 1.5/2.0 Ton split type Air conditioner

Rewinding of inner blower motor of 1.5/2.0 Ton split type Air conditioner

Replacement of Starting relay of 1.5/2.0 Ton split type Air conditioner

Repairing of PCB 1.5/2.0 Ton split type Air conditioner

Replacement of PCB 1.5/2.0 Ton split type Air conditioner

Repairing of Remote kit of 1.5/2.0 Ton split type Air conditioner

Replacement of Remote kit of 1.5/2.0 Ton split type Air conditioner

Top up of refrigerant of unit as per requirement (R-32).

Shifting of wall mounted complete Split AC of 1.5 Ton and 2.0 Ton Split AC as per requirement of site, including supply of inlet/outlet copper piping with insulation, cutting, brazing & gas charging. Supply of inlet/outlet copper piping, insulation material, brazing & gas charging will be in the contractor scope.

Replacement of Condenser/Evaporator coil of 1.5 / 2.0 Ton AC

Replacement of Fan Motor of 1.5 / 2.0 Ton AC

Replacement of 2.0 Ton burnt compressor with gas charging (New compressor will be provided by contractor.)

Replacement of 1.5 Ton burnt compressor with gas charging (New compressor will be provided by contractor.)

Gas Charging ( As per requirement) in 5.5 Ton Compressor

Gas Charging ( As per requirement) in 8.5 Ton Compressor

Replacement of Thermostat of 5.5/8.5/11.0/17.0 Ton Ductable type air conditioners

Replacement of Blade of fan blower of 5.5/8.5/11.0/17.0 Ton Ductable type air conditioners

Replacement of Blade of fan blower of 9.0 Ton Precision air conditioner

Replacement of Thermostat of 9.0 Ton Precision air conditioner

Replacement of Fan Motor capacitor of 5.5/8.5/11.0/17.0 Ton Ductable type air conditioners

Replacement of Fan Motor capacitor of 9.0 Ton Precision air conditioner

Rewinding of blower of AHU motor

Rewinding of fan motor of 5.5/8.5/11.0/17.0 Ton Ductable type air conditioners

Rewinding of fan motor of 9.0 Ton Precision air conditioner

Repair of air blowers of air handling units. The work includes dynamics balancing of blower fan, replacement of bearing repair of shaft and other associated work.

Replacement of pipe lines by cutting & welding of different sizes of HVAC System (It includes its transportation from store to site, Replacement of pipe line and transportation of damaged line back to site store.)

Replacement of 150/100 NB size MS pipe by cutting and welding

Replacement of 80/65/50/40/32/25/15 NB size MS pipe by cutting and welding

Replacement of 300/250/200 NB size MS pipe by cutting and welding

Replacement of Valves by cutting & welding of HVAC System (It includes its transportation from store to site, Replacement of Valve and transportation of damaged valve back to store.) & OH of Y-type Strainer

15/25/40/50/80 NB size Gate Valve / GlobeValves / Balancing valves / 2 Way valves and NRVs

100/150/200 NB size Gate Valve / GlobeValves / Balancing valves/ 2 Way valves and NRVs

50/65/80/100 NB size Buterfly Valve

150/200/250 NB size Buterfly Valve

150/200/250 NB size Motorised Buterfly Valve

Overhauling(cleaning, repairing , replacement of damaged parts etc) of 100/80/65/50/25mm Y-type Strainer

Overhauling(cleaning, repairing , replacement of damaged parts etc) of 200/150 mm Y-type Strainer

Biennial Contract for Annual Maintenance Contract (AMC) for Equipments/Auxilieries of Compressed Air Systems, Fire Protection & Detection System, HVAC System and M/s Techno & M/s Ali Craft make Lifts of CTPS, Obra

Compressesd Air System

Manpower Support work for Annual maintenance contract(AMC) of Atlas Copco make Air Compressor (Service Air Compressor 03nos, Instrument Air Compressors 03nos & Air Driers 03nos) With T&P and consumables. (03 Unskilled Man power per day)

Annual maintenance contract(AMC) of Atlas Copco makes Air Compressor (06 Nos) model ZR-500 and Air Dryer (03 Nos) installed at (2X660MW) CTPS, Obra with OEM, M/s Atlas Copco qualified enginner / supevisors. (One visit for 06 Nos air compressor and 03 Nos Dryer will be consider as One Job)

Fire Fighting System

Annual maintenance contract(AMC) by OEM of Hydrant /Spray diesel engine ( Total 03 nos.) ( One visit consider as 01 Job)

Annual maintenance contract(AMC) by OEM of Fire Water Booster diesel engine ( Total 01 no.) ( One visit consider as 01 Job)

Annual maintenance contract(AMC) by OEM ( M/s Mini Max)Technical Advisor of Inert Gas flooding system.( One visit consider as 01 Job)

HVAC System

Annual maintenance contract(AMC) of VAM (M/s Thremax Make- 320 TR) by OEM Engineer including emergency visit during B/D of VAM. ( One visit considered as 01 Job.)

Annual maintenance contract(AMC) of Chiller Units (M/s Blue Star Make- 174 TR - 04 nos. & 160 TR- 02 nos.)(Total 06 nos.) by OEM Engineer.( One visit considered as 01 Job)

Lift System

Administrative Building, (01 no.) M/s TECHNO make

Service Building , (02 nos.) M/s TECHNO make

TG hall Lift unit # 1, (01 no.) M/s TECHNO make

TG hall Lift unit # 2, (01 no.), M/s TECHNO make

Boiler passenger Lift unit #1, (01 no.) M/s TECHNO make

Boiler passenger Lift unit #2, (01 no.) M/s TECHNO make

Boiler Goods Lift unit #1, (01 no.) M/s TECHNO make

Boiler Goods Lift unit #2, (01 no.) M/s TECHNO make

Chimney Lift, (01 no.), M/s Ali Craft make

ABSORBER 1, (01 no.) M/s TECHNO make

ABSORBER 2, (01 no.) M/s TECHNO make

LIME STONE CRUSHER HOUSE, (01 no.) M/s TECHNO make

LS PREPARATION, (01 no.) M/s TECHNO make

GYPSUM DEWATERING, (01 no.) M/s TECHNO make

WWTP BUILDING, (01 no.) M/s TECHNO make

CRUSHER HOUSE, (01 no.) M/s TECHNO make

JT 10(01 no.), M/s TECHNO make

JT 12, (01 no.) M/s TECHNO make

Bhavani Erectors Pvt Ltd

TIRANGA CONSTRUCTION

INDWELL CONSTRUCTIONS PRIVATE LIMITED