ARC for Misc. Mech. Repair jobs for the year 2026-27

Amount

Annexure-I

A-Fabrication including cutting, edge preparation, welding, providing reinforcement pads at branch connection, if required, transportation of CS pipe & pipe fittings to work site. Rates of fabrication should be per inch dia. The fabrication of Mitre bends of various sizes and type will be included in the job.Circumferential joints involved in fabrication of steam jacketed piping shall come under the scope of this item

Rate per inch nominal dia of pipe per welding joint

1-Upto & Including Sch 40

2-Above Sch 40 & upto Sch 80

3-Above Sch 80 & upto Sch 160

B-Fabrication including cutting, edge preparation, welding, providing reinforcement pads at branch connection, if required, transportation of SS pipe & pipe fittings to work site. Rates of fabrication should be per inch dia. The fabrication of Mitre bends of various sizes and type will be included in the job.transportation of SS pipe & pipe fittings to work site. Rates of fabrication should be per inch dia. The fabrication of Mitre bends of various sizes and type will be included in the job.

Rate per inch nominal dia of pipe per welding joint

1-Upto & Including Sch 40

2-Above Sch 40 & upto Sch 80

3-Above Sch 80 & upto Sch 160

C-Fabrication including cutting, edge preparation, welding (By IBR qualified Welder), providing reinforcement pads at branch connection, if required, transportation and assistance for X-Ray & Stress Relieving of Alloy Steel and Carbon Steel pipes (IBR) and pipe fittings to Work Site. Rates of fabrication should be per inch dia.

Rate per inch nominal dia of pipe per welding joint

1-Above Sch 40 & upto Sch 80

2-Above Sch-80 and upto Sch-160

D-Cutting of CS pipes, flanges & other fittings &shifting to sites as per instruction of Engineer in charge:

Rate per inch nominal dia of Pipe

1-Upto & Including Sch 40

2-Above Sch 40 & upto Sch 80

3-Above Sch 80 & upto Sch 160

E-Cutting of CS plate.

Rate per running inch

1-Upto & including 6 mm thickness

2-Above 6 mm upto 12 mm thickness

3-Above 12 mm upo 20 mm thickness

4-Above 20 mm thickness

F-Cutting of SS Plate.

Rate per running inch

1-Upto & including 3 mm thickness

2-Above 3 mm upto 6 mm thickness

3-Above 6 mm upto 10 mm thickness

G-Cutting of SS pipes, flanges & other fittings &shifting to sites as per instruction of Engineer in charge

Rate per running inch

1-Upto & Including Sch 40

2-Above Sch 40 & upto Sch 160

H-Erection of pipe including lifting, placing on sleeper/racks at all elevation, levelling, alignment, jointing of flanges including insertion of gaskets and bolting and supply of manpower for testing and flushing, if required. For steam jacketed piping, erection shall be measured for both core and jacket pipe.

Rate per inch nominal dia per Meter length of Pipe

1-Upto & including Sch 40

2-Above Sch 40 & upto Sch 80

3-Above Sch-80 and upto Sch-160

I-Fabrication of eccentric reducer and other fabrication out of plate fabrication.

Rate per inch welding length

1-Upto 6 MM Thickness

2-7 MM to 10 MM thickness

3-11 MM to 15 MM thickness

4-16 MM to 25 MM thickness

J-Running welding with joint preparation etc. Running welding of longitudinal joints of the jacket of steam jacketed piping shall also come under the scope of this item.

1-Upto 6 MM Thickness

2-7 MM to 10 MM thickness

3-11 MM to 15 MM thickness

4-16 MM to 25 MM thickness

K-Rate per MT

1-Fabrication & Erection of Steel Structure like Chutes, Staircase, Ladder Platform, Walkways, Railings ,Pipe Support etc.

2-Dismantling of various type of Structure, Vessels,Pumps, Gear boxes, pipes , Heat Exchangers and Miscellaneous equipments by Gas cutting of bolts etc. Opening the bolts at various Elevation including opening of flanges, bolts, nuts welding alignment and allied jobs

3-Erection of various types of Structures,Vessels,Pumps, Gear boxes, Heat Exchangers and miscellaneous Equipment at various elevation including boxing up of flanges bolts & nuts, welding, alignment and allied jobs.

L-Replacement of stair case grating and floor grating.

1-Replacement of damaged pre-fabricated Staircase/Floor Grating by fabrication.

M-Fabrication of clamp and fixing of feed plate(patch wor)/clamp as per requirement( Attending leakages as per the Scope of work)

1-Clamp size 2’ to 4”

2-Clamp size 5” to 8”

3-Clamp size 10” to 14”

4-Clamp size 15” to 20”

Annexure-II

A-Replacement (opening & boxing up) of Gate Valve, Globe Valve, Diaphragm Valve, Non-return valve, Check Valve, Plug Valve, Ball Valve, Butterfly Valve, Relief and Safety Valve of all sizes.

Rate per inch diameter

1-Upto 300 lbs rating valve

2-600 lbs to 900 lbs rating Valve

3-1500 lbs rating Valve & above

B-Replacement of welded valves i.e. Gate Valve, Globe Valve, Diaphragm Valve, Non-return valve, Check Valve, Plug Valve, Ball Valve, Butterfly Valve, Relief and Safety Valve of all sizes.

Rate per inch diameter

1-Upto 300 lbs rating valve

2-600 lbs to 900 lbs rating Valve

3-1500 lbs rating Valve & above

C-Replacment of welded valve by IBR welder

1-Upto 1500 lbs rating Valve

D-Opening & Fixing of bonnet of valve in Raw water plant filter beds including replacement of spindle Gate Valve, Globe Valve, Diaphragm Valve, Check Valve, Plug Valve, Ball Valve, Butterfly Valve of all sizes.

Rate per Inch Nominal dia of valve

1-Valve upto 300 psi rating

E-Opening & boxing up of flanges and manhole covers:

1-Upto 300 psi rating

2-From 600 to 900 psi #

3-1500 psi and Above

F-Opening, normalizing ( cleaning of flange seat , replacement of flanges if required, replacement of gasket and boxup of the fermanited flanges of various Sizes). Cutting of bolts if required.

1-Flanges of rating 150#

2-Flanges of rating 300#

3-Flanges of Rating 600#

G-Additional items to be excuted in different Section/Plant.

1-Heating of Pipelines, Mechanical Components like Bearings, Couplings, Hubs etc. during Mounting/ Dismounting at the time of assembly of Equipments

Annexure-III

A-Opening, Removal & boxing up of Dish End of Heat Exchanger.

Reate per Inch dia of Dish End.

1-Upto 12" Dia

2-Above 12" to 36" Dia

3-Above 36"

B-Replacement of Tube bundle of Heat Exchanger.

1-Removal of Tube bundle of Heat Exchanger

2-Re-fixing of Tube bundle of Heat Exchanger

Annexure-IV

A-Jobs pertaining to SGP/CPP.

Ash Handling system of SG Plant

1-Opening & Boxing up of B - B/B-C Adopter Sleeve Coupling from Size 150 mm to 300 mm dia.

2-Replacement of CI Fly Ash Pipe Line Size from 150 mm to 300mm (Max. length 5.5 MR)

3-Replacement of CI Elbow Short/long Radius, Size from 150 mm to 200mm dia 90/45 Degree.

4-Replacement of CI Lateral/Y Piece Size from 175 mm to 300mm dia 45 Degree.

5-Repair & Replacement of Ash Extraction Valve (Ash Intake Valve) Size 150 mm to 175mm dia

6-Replacement of Valve Body along with Disc of Ash Extraction Valve Size 150 mm dia

7-Repair & Replacement of Totally Enclosed Rotary Slide Gate (TERSG Valve, Size 200 mm dia in Fly Ash line which includes Removal of TERSG Vale boxing up of TERSG Valve & Repair of Old TERSG Valve

8-Repair & Replacement of Vacuum Breaker Ass'y Size 150 mm dia

9-Exhauster Hydroveyor Assembly Size 200 mm dia (Approx. wt. 400 Kg)

10-Replacement of CI Tube Combining (Tail piece) for Exhauster Hydroveyer Size 200 mm dia

11-Replacement of Air Separator Tank of SG Plant (Approx Wt. 3 Te)

12-Replacement of Segment of Air Separator Tank of SGP (Approx Wt 175 Kg)

13-Replacement of Hydraulic Ejector Assembly (Jet Pump Ass'y) of Bottom Ash System (Approx Wt. 275 Kg)

14-Replacement of Inlet Piece of Hydraulic Ejector of Bottom Ash System.

15-Replacement of Combining Tube of Hydraulic Ejector of Bottom Ash System.

16-Repair / Replacement of Butter fly Valve, Size 300 mm dia

17-Replacement of Bearing of Clinker Grinder of SG Plant

18-Repacking of Gland of Clinker Grinder of SG Plant

19-Replacement of Clinker Grinder Bearing. Replacement including related jobs i.e. Gland packing Gear/Sprocket removal and fitting etc. of CPP

20-Replacement of Seal of Bottom Ash Hopper Gate including dismentling/ refixing of gate housing, power cylinder, service water line connection etc.

21-Repair & Replacement of Hydraulic Cylinder of Clinker Grinder.

22-Replacement of bearing housing with Impeller of ID/FD Fan. Replacement includes removal of Impeller housing of ID/FD Fan casing, removal of impeller & fixing on overhauled/new bearing housing, putting in position , alignment & after completion of job, top

B-Repair/Replacement of Coal & Oil Burner of SG Plant.

1-Repair & Replacement of Coal Burner Assy.

2-Repair & Replacement of Gas Burner Assy.

3-Repair & Replacement of End Air Nozzle Tips

C-Pulverised Fuel (P.F.) system of SG Plant .

1-Opening & Boxing up of PF Line Victaulic Coupling, Size 300 mm dia.

2-Opening & Boxing up of PF Line Orifice, Size 300 mm dia.

3-Rotation of PF Distributor Outlet Pipe, Size 300 mm dia.

4-Replacement of PF Distributor Outlet Pipe, Size 300 mm dia.

5-Replacement of Coal Bends, Size 300 mm dia upto 60 Degree.

6-Replacement of Coal Bends, Size 300 mm dia above 60 Degree upto 90 Degree.

7-Repair of small Distributor (includes removal of old worn out Riffle Elements, Build up Hard Facing and fitting of New Riffle Elements)

D-Jobs pertaining to Electro Static Precipitator of SGP

1-Dismantling & Removal of Collecting Electrode Plate.

2-Erection of Collecting Electrode Plate

3-Replacement of Rapping Hammer (Outer Arm)

4-Repair & Replacement of Drive Shaft.

5-Repair & replacement of Guide Rod(Tie Rod)

6-Repair & replacement of Shock Bar

7-Replacement of Shock Pad.

E-Jobs pertaining to Coal Handling / Urea & Bagging Plant /Bentonite Sulphur Plant

1-Impact Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) after repair for 750 mm & 1000 mm wide Belt.

2-Replacement of Impact Idlers (Rollers) for 750 mm & 1000 mm wide Belt

3-Self Aligning Idlers (Rollers) Bracket Dismantling & Installation with new Idlers (Rollers) after Repair for 750 mm & 1000 mm wide Belt.

4-Replacement of Self Aligning Idlers (Rollers) for 600,750 mm & 1000 mm wide Belt.

5-Troughing Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) for 750 mm & 1000 mm wide Belt.

6-Replacement of Troughing Idlers (Rollers) of carrying side for 750 mm & 1000 mm wide Belt.

7-Return Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) after repair for 750 mm & 1000 mm wide Belt.

8-Replacement of Return Idlers (Rollers) for 600, 750 mm & 1000 mm wide Belt.

9-Clamp Fatener Joint for 750 mm width Conveyor Belt.

10-Replacement of Screen Cloth Panel of Vibrating Screen.

11-Replacement of conveyor belt/oil resistant conveyor belt 1000mm/800mm/ 750mm/600mm

12-Hot Vulcanizing Joint for 600/750/800/1000 mm wide Conveyer Belt/ oil resistant conveyor belt

13-Replacement of Decksheet for 1350x1250x3 mm

14-Replacement of Decksheet for 1350x1100x3 mm

F-Job pertaining to Air preheater

1-Replacement of Radial Seals (Hot End) for Air Preheater of SGP Boilers (Includes removal of old seals, repair of mounting surfaces, if any; re-fixing of New Seals, adjustment of clearances and trial run) - (There are 12 Sectors / APH)

2-Replacement of Radial Seals (Cold End) for Air Preheater of SGP Boilers (Includes removal of old seals, repair of mounting surfaces, if any; re-fixing of New Seals, adjustment of clearances and trial run) - (There are 12 Sectors / APH)

3-Replacement of Circumferential and Rotor Post Seals (Hot End) for Air Preheater of SGP Boilers (Includes removal of old seals, repair of mounting surfaces, if any; re-fixing of New Seals, adjustment of clearances and trial run)

4-Replacement of Circumferential Seals and Rotor Post (Cold End) for Air Preheater of SGP Boilers (Includes removal of old seals, repair of mounting surfaces, if any; re-fixing of New Seals, adjustment of clearances and trial run)

Annexure-V

A-Opening/Inspection & Re-fixing of Demister.

1-AFA-601 (Size 1500 x 150 mm)

2-AGC-601 (Size 1650 x 150 mm)

3-UDA-203 (Size 1788 x 100 mm)

4-UDA-402 (Size 800 x 100 mm)

B-Opening/Inspection & Replacement of Demister in New Ammonia Plant.

1-F 302 CO2 absorber demister replacement

2-F 551 Purge Gas Absorber demister replacement

Annexure - VI

A-Supply of Contract labour for unplanned/unforeseen Plant Break-down/Shut-down Jobs:

Labour Rates (Rate per working day of 8 Hours))

1-General Fitter/HES fitter(Highly Skilled Labour)

2-Auto Electrician(Highly Skilled Labour)

3-Rigger(Skilled Labour Gr.B)

4-Welder (IBR)

5-Welder(Non-IBR)(Skilled Labour Gr.B)

6-Turner/Machinist(Highly Skilled Labour)

7-Mazdoor/Helper(Unskilled )

B-Labour Rates (Over Time Rate per Hours)

1-General Fitter/HES fitter(Highly Skilled Labour)

2-Auto Electrician(Highly Skilled Labour)

3-Rigger(Skilled Labour Gr.B)

4-Welder (IBR)

5-Welder(Non-IBR)(Skilled Labour Gr.B)

6-Turner/Machinist(Highly Skilled Labour)

7-Mazdoor/Helper(Unskilled )

Annexure-VII

ITEM FOR UREA PLANT:

A-Opening & boxing up of swirl of UDA-201.

1-OD of perforated plate : 2050 MM, No. of Swirl: 1087

B-Opening and Box-up of Demister & Perforated plates of UDA-202

C-Opening and Box-up of UGA-403 strainer.

D-Opening and box-up of UGA-404 Strainer

E-Opening & box up of UGB-102 motor radiator.

F-Repair of Wagon Hauler:

1-Single Joint of Wire Rope

2-Double Joint of Wire Rope

3-Replacement of Bearing of Wagon Hauler Pulley

4-Replacement of Wagon Hauler Pulley

5-Replacement of wire rope of wagon hauler - 650mtr including shift of wire rope, lifting & normalizing counter weights of wagon hauler, installing of wire rope and connecting of wire rope with single or double joint as required. Shifting of wire rope from store to site and site to scrap yard

G-Repair of Bucket Elevator.

1-Replacement of Chain along with bucket

2-Replacement of Sprockets, Head Tail End

3-Replacement of Bearings of Sprockets

4-Replacement of Each Bucket.

H-Replacement of Troughing, Carrying Rollers Assembly complete by removing & re-fixing of brackets.

1-For 1000 mm wide belt

2-For 600 mm wide belt

3-For 400 mm wide belt

I-Replacement of Return Rollers .

1-For 1000 mm Belt

2-For 600 mm Belt

J-Replacement of gearbox of conveyor belt in Urea and Bagging Plant.

K-Job in Dust Chamber:

1-Replacement of dust chamber Filter

2-Opening & Boxing-up of 2" Nozzle

L-Repair of CFD Bed:

1-Removal & re-fixing of SS Strip.

2-Removal & re-fixing of 12 MM Skirt bolts.

3-Cutting & Straightening of Skirt plate

4-Removal & re-fixing of Complete SS Wire Mesh

5-Removal of SS perforated plate straightening and re - fixing of plates.

6-Fixing of Rubber Skirt

Annexure - VIII

A-Replacement of Conveyor belt pulley with new bearing .

For Urea Plant & Bagging Plant

1-Pulley size upto 650 dia x 1150 mm Length

2-Pulley dia upto 850 mm x Length upto 1200 mm for conveyor belt upto 1000 mm width

B-Replacement of Expansion Bellow:

1-Expansion Bellow size 1120x1780x 300 mm

2-Expansion Bellow size 1200x4445x 250 mm

3-Expansion Bellow size 1700x4364x 250 mm

4-Expansion Bellow size 1700x2240x 250 mm

5-Expansion Bellow size 4200x5760x 360 mm

Annexure - IX

A-ITEMS FOR MECHANICAL WORKSHOP

1-Scrap removal, machine cleaning and lubrication of guide ways etc.of Boring M/c,Lathe M/c(six Nos.),Radial Drilling M/c,Horizotal Surface Grinder,shaper and Slotter (2Nos.),Cylinderical grinder,Lapping M/c, Milling M/c and hydraulic press(200Te)

2-Loading of jobs, Centering/Setting and unloading of Boring M/c,Lathe M/c(six Nos.),Radial Drilling M/c,Horizotal Surface Grinder,shaper and Slotter (2Nos.), Cylinderical grinder, Milling M/c and hydraulic press(200Te)

3-Assistance for polishing work for Workshop Machinery i.e. Lathe M/c(six Nos.),Radial Drilling M/c Shaper and Slotter (2Nos.), Milling M/c etc.

4-Assistance for repair of valves/overhauling and for fabrication shop

B-Job pertains to Heavy Earth Moving Section (Auto Section)

Rate for No. of Times jobs to be done in a year

1-Assistance in upkeep/maintenance of Auto Section of its various equipment I.e.127Te/75Te Crane,Hydra crane (3Te,5Te,8Te), Dozer (D-80 A12),Loader (Terex), 50HX Backhoe Loader,Tractor Trolley etc.as well as deployment of various Cranes/Tractor Trolle

C-Deployment of Operator for operating various equipments.

1-127 Te/75Te Crane

2-50 HX Backhoe Loader

3-14 Te/8 Te/5Te/3Te Hydra

4-Tractor

D-Deployment of Operator for operating various equipments. (Over time rate/ hour)

1-127 Te/75Te Crane (Over time)

2-50 HX Backhoe Loader (Over time)

3-14Te/8 Te/5Te/3Te Hydra (Over time)

4-Tractor

Annexure-X

Load Testing of Cranes and Lifting Tackles:

A-Annual load testing of cranes & lifting tackles includes the lubrication of all the points, checking the brake blocks/brake liners etc. for proper operation with respect to load testing. In case of any abnormality faced in operation during load testing of Cranes/Hydra/EOT shall be rectified by NFL. Trolley mounted/chain blocks shall be attended by contractor. Spares, if required, will be provided by NFL free of cost.

Cranes/Hydra/EOT Cranes

1-TATA P&H Crane Cap. 127 Te, Located at Mech Workshop

2-TATA P&H Crane Cap. 75 Te, Located at Mech Workshop

3-Coles Crane Cap. 12.5 Te, Located at Mech Workshop

4-Hydra 8Te Located at Mech Work-shop

5-Hydra 5 Te Located at Mech. Work-shop

6-Hydra 3 Te Located at Mech. Work-shop

7-M/s Garlic Udyog O/H Crane, capacity 20 Te in Urea Compressor House.

8-M/s Mukand Engg. O/H Crane Cap. 20/5 Te in Ammonia Comprssor House

9-M/s Garlic Udyog O/H Crane, capacity 10 Te in Workshop.

10-M/s Garlic Udyog O/H Crane, capacity 5 Te in O&U Compressor House.

11-M/s Khandewal Udyog EOT Crane Cap. 5 Te of Urea Pump House and Bagging Plant Empty Bag Store

12-M/s Garlic Udyog O/H Crane, capacity 0.5 Te in RWP Chemical Dozing House

13-M/s khandewal Udyog O/H Crane, capacity 43/10 Te in TG House CPP.

14-Single Girder EOT Crane (BUC Make), capacity 5 Te, Located at Slurry Pump House and Ash Water Pump House.

15-Wire Rope Hoist (TAK Elect. Make), capacity 7.5 MT at Prilling Tower Top.

16-Wire Rope Hoist (Tirfor Make), capacity 1.6 MT at Urea Syn. Reactor Top.

17-Wire Rope Hoist, capacity 2 MT at Hydro Vector Tower of SG Plant.

18-Wire Rope Hoist, capacity 2 MT at Hydro Vector Tower of CPP Plant.

19-Chain Hoist, capacity 2 MT at Bowl Mills Bay & Fireman's Floor in SGP and Coal Feeder in CPP.

20-M/S garlic udyog O/H EOT crane capacity 25/5 Te in old ammonia compressor house

21-M/S armsel engg. O/H EOT crane capacity 25/5 Te in new ammonia compressor house

22-M/S HERCULEOS. O/H EOT crane capacity 1Te in Bentonite Sulphur plant

23-Pick & Carry Crane( 14 Te Hydra)

B-Chain Pulley Blocks.

Rates for Testing only.

1-Chain Pulley Block, capacity 0.5 Te

2-Chain Pulley Block Capacity 1.0 Te

3-Chain Pulley Block, capacity 1.5 Te

4-Chain Pulley Block Capacity 2.0 Te

5-Chain Pulley Block Capacity 3.0 Te

6-Chain Pulley Block Capacity 4.0/5.0 Te

7-Chain Pulley Block Capacity-7.5/10.0 Te

C-Rates for Repair/Overhauling & Testing

1-Chain Pulley Block Capacity 0.5 Te

2-Chain Pulley Block Capacity 1.0 Te

3-Chain Pulley Block Capacity 2.0 Te

4-Chain Pulley Block Capacity 3.0 Te

5-Chain Pulley Block Capacity 4.0/5.0 Te

6-Chain Pulley Block, capacity 7.5 Te

7-Chain Pulley Block, capacity 10.0 Te

Annexure - XI

Electrical Dept.

A-Shifting of ID Fan Motors.

1-Shifting of ID Fan Motors

2-Replacement and shifting of UJD-301 A & B Screw conveyor geared motors

B-Opening/fixing of Electrical Motors and placing in the Plant for repair. Repair will be in the scope of NFL.

Rates when Motors are not to be shifted to Elect. Workshop

1-From 11 K.W. to 90 KW

2-From 90 K.W. to 315 KW

3-Above 315 KW Motor

C-Rates when Motors are to be shifted to Elect. Workshop

1-From 11 K.W. to 90 KW

2-From 90 K.W. to 315 KW

3-Above 315 KW Motor

4-UGB-302, 600 KW at Prilling Tower Top at 65 Meter Height (Approximate Weight 6 MT)

5-UGA-302 A & B, 125 KW at Prilling Tower Dust Chamber at 50 Meter Height (Approximate Weight 1.5 MT)

Annexure - XII

Valves pertaining in Instrument Dept.

A-Upto & including 3" dia

1-Opening upto 600 lbs Rating.

2-Re-fixing upto 600 lbs Rating.

3-Opening above 600 lbs Rating.

4-Re-fixing above 600 lbs Rating.

B-Above 3" dia and upto & including 6" dia:

1-Opening upto 600 lbs Rating.

2-Re-fixing upto 600 lbs Rating.

3-Opening above 600 lbs Rating.

4-Re-fixing above 600 lbs Rating.

C-Above 6" dia and upto & including 12" dia:

1-Opening upto 600 lbs Rating.

2-Re-fixing upto 600 lbs Rating.

Annexure - XIII

A-Replacement of Economiser Tube of Boiler: (Involves Cutting to reach weak tube, edge preparation, fitting of new tube, root run, DP check, final welding, Assistance in X-Ray and Hydro test. Also includes erection of scaffolding & working platform, wherever required. Welding shall be carried out by an IBR qualified Welder). It includes 2 welding joints per tube upto the length of 6.4 Meter.

1-Economiser Tube Welding Joint (Upto Tube OD 63.5 mm)

2-Economiser Tube Length Erection (Upto Tube OD 63.5 mm)

B-Replacement of Water Wall Tube of Boiler: (Involves cutting, edge preparation, fitting of new tube, root run, DP check, final welding, Assistance in X-Ray, Hydro test and welding of sealing fin. Also includes erection of local additional scaffolding & working platform, wherever required. welding shall be carried out by an IBR qualified Welder).

1-Water Wall Tube Welding Joint (Upto Tube OD 76.2 mm)

2-Water Wall Tube Length Erection (Upto Tube OD 76.2 mm)

C-Replacement of Super Heater Tube of Boiler: (Involves cutting, edge preparation, fitting of new tube, root run, DP check, final welding, Assistance in X-Ray and Hydro test. Also includes erection of local additional scaffolding & working platform, wherever required. Welding shall be carried out by an IBR qualified Welder).

1-Super Heater Tube Welding Joint (Upto Tube OD 63.5 mm)

2-Super Heater Tube Length Erection (Upto Tube OD 63.5 mm)

D-Repair job in Steam Drum and Mud Drum of BHEL & MES Boiler

1-Plug Welding in Steam Drum and Mud Drum of BHEL & MES Boiler

2-Seal Welding in Steam Drum of BHEL & MES Boiler

3-Seal Welding in Mud Drum of BHEL & MES Boiler

E-Erection & dismantling of scaffolding for various jobs at various heights inside/outside Boiler, Furnace, Steam Start-up Heater or any other Vessels as under:

1-Upto & including 10 meter height

2-Above 10 Meter upto & below 25 meter height

3-Above 25 Meter Height

Annexure - XIV

A-REPAIR/OVERHAULING OF BOWL MILLS AND MAINT. OF ASH DISPOSAL LINE EXHAUSTER & GEAR BOX AND ITS COMPONENTS

JOB PERTAINS TO RC FEEDER:

1-Replacement(Including Fabrication & Hard facing) of Square Coal Feed Chute between Coal Bunker Hopper and Coal Feed Gate.

2-Reapir & Replacement of Coal Feed Gate (Including Hard Facing)

3-Replacement(Including Fabrication & Hard facing) of Square Inverted Pyramid Coal Inlet Chute between Coal Feed Gate & RC Feeder.

4-Replacement of Feed Roll Blades of RC Feeder (1 Set = 6 Nos.)

5-Replacement of Feed Roll Spider Assembly of RC Feeder

6-Overhauling including Repair & Replacement of RC Feeder

7-Repair & Replacement of Hing Gate Mechanism Assembly of RC Feeder

8-Repair & Replacement of Hing Gate & Blade Assembly of RC Feeder

9-Replacement(Including Fabrication & Hard facing) of Coal Discharge Chute between RC Feeder and Coal Feed Pipe of Bowll Mill.

B-JOB PERTAINS TO BOWL MILL:

10-Repair of Converter Head by patch welding and Box up.

11-Replacement of new Converter Head

12-Adjustment of clearance (Gap) between Roller Journal Assembly & Bull Ring and pressure Ring Assembly.

13-Replacement of Roller Journal Assembly

14-Repair & Replacement of Inner Cone

15-Overhauling including Repair & Replacement of Wear Components of Bowll Mill excluding Gear box.

16-Replacement of Worm Shaft Ass'y including blue matching of Worm Shaft & Gear Wheel and alignment.

17-Overhauling of Worm Shaft Assembly

18-Overhauling including Repair & Replacement of complete Bowl Mill.

19-Preventive Maint. of Oil Pump Assembly including lower Bearing Housing.

20-Replacement of scraper Assembly of Bowl Mill.

21-Opening & Boxing up of one segment of Skirt Assembly (for inspection of vertical Shaft & its Upper Guide Bearing)

22-Replacement of Skirt Ass'y(1 No. = 4 segments)

23-Opening & Boxing up of Bibby / Gear Coupling between Bowl Mill and Exhauster or Motor for Inspection.

24-Alignment of Bibby / Gear Coupling between Bowl Mill and Exhauster or Motor.

25-Replacement of coupling including alignment of coupling between Bowl Mill and Exhauster or Motor.

26-Overhauling of Hot Air Gate

27-Replacement of Mill Body Liner for Bowl Mill (Includes removal of old liner by opening of bolt/cutting, surface preparation by welding/grinding, if required and fixing of New Liner)

28-Replacement of Extension Strip in Bowl Mill which includes removal of old strip and welding/positioning of new strip (1 set includes 6 Nos.)

C-JOB PERTAINS TO EXHAUSTER:

29-Opening & Boxing up of Manhole Cover for Inspection of Exhauster.

30-Opening & Boxing up of Manhole Cover and assistance in balancing.

31-Replacement of periphery Liners # II (below door) of Exhauster (including opening & boxing up of Manhole Cover)

32-Replacement of periphery Liner (door) of Exhauster (including opening & boxing up of Manhole Cover)

33-Replacement of periphery Liners # III (above door) of Exhauster (including opening & boxing up of Manhole Cover)

34-Replacement of periphery Liners # IV (Top) of Exhauster (1 set = 4 Nos.)

35-Replacement of Fan Blades and balancing of Exhauster (1 set = 6 Nos.)

36-Replacement of Whizer Blades and balancing of Exhauster (1 set = 6 Nos.)

37-Replacement of Whizer Disc and balancing.

38-Replacement of Fan Intake pipe of Exhauster.

39-Fabrication & Erection of Fan intake pipe (Rate should be on per meter basis)

40-Replacement of Exhauster suction Elbow alone.

41-Replacement of Discharge Neck of Exhauster alone.

42-Replacement of Stub End Victaulic Coupling of Discharge Neck of Exhauster alone.

43-Replacement of complete ED Valve Assembly including Disc, Shaft, Bushing and Power Cylinder alone.

44-Overhauling of ED Valve Ass'y including repair & replacement of Body, Disc, Shafts & Bushing etc. alone.

45-Overhauling & Replacement of Bearing Housing Assembly of Exhauster alone.

46-Overhauling including Repair & Replacement of Exhauster Ass'y including Bearing Housing, Exhauster Casing & ED Valve Assembly.

47-Overhauling including Repair & Replacement of Exhauster Ass'y.incuding bearing housing but excluding Exhauster Casing and ED Valve Assembly.

48-Overhauling including Repair & Replacement of Exhauster Ass'y. excluding replacement of Bearing Housing Assembly, ED Valve Assembly and Exhauster Casing.

49-Replacement of complete Riffle Element of big Riffle Distributor for Pulverised Fuel.

50-Replacement of big Riffle Distributor Assembly for Pulverised Fuel.

51-Replacement of complete Riffle Element of small Riffle Distributor for Pulverised Fuel.

52-Replacement of small Riffle Distributor Assembly for Pulverised Fuel.

53-Replacement of Motor of Bowl Mill

54-Replacement of Extension Ring & Strip

55-Replacement of spring Assy.

56-Replacement of Jack bolt

57-Replacement of Ash water Pump in SGP including alignment

58-Replacement of Bearing of Ash Water Pump in SGP which includes matching of Bearing surface with shaft.

59-Replacement of flange segment for exhauster(removed by cutting alinging&refixing in position by welding on both sides.

Annexure - XV

A-MAINTENANCE OF ASH DISPOSAL LINE TO ASH POND

1-Replacement of Knife Edge Gate of 12 inch dia Motor Operated Knife Edge Gate Valve.

2-Opening & Boxing up of 12" dia spool piece in the suction line of Ash Slurry Pump.

3-Opening & Boxing up of 12" x 10" dia Reducer in the suction line of Ash Slurry Pump.

4-Replacement of 12 Inch dia 150# Pipe Sleeve Coupling.

5-Replacement(Including Repair) of 12" NB 45 Degree C.I. Elbow.

6-Replacement(Including Repair) of 12" NB 45 Degree C.I. Offset Elbow ('S' Elbow)

7-Replacement(Including Repair) of 12" NB 90 Degree C.I. Elbow.

8-Replacement(Including Repair) of 12" NB 45 Degree C.I. Letral.

9-Replacement of 14" dia 150# Pipe Sleeve Coupling.

10-Replacement(Including Repair) of 14" NB 45 Degree C.I. Elbow.

11-Replacement(Including Repair) of 14" NB 90 Degree C.I. Elbow.

12-Replacement of gasket of 12" dia Ash disposal line.

Annexure-XVI

A-Jobs pertains to Cooling Tower

1-Opening & boxing up of sump striner of cooling towers for inspection

B-Jobs Pertains to Sulphur Bentonite plant

1-BF-02 filter replacement of size 200NB

2-Replacement of Gear Pumps

3-Stainless steel belt jointing job (1 mm thickness)

a-Cracks jointing job

b-Patch jointing job

c-Cracks jointing job

d-Patch jointing job

C-Jobs Pertaining to GTG-HRSG Plant

1-NG filter element replacement of size 12”, 300#

2-GTG Air Intake Filter Replacement.

Annexure-XVII

Various Plant Jobs:

To assist NFL Employee in executing various Mechanical Maintenance Jobs in routine day to day maintenance in general shift & Plant shift.

A-Ammonia Plant

1-Reformer Area AFC Plant

2-CO Area AFC Plant

3-Compressor House, ARU, Synthesis Section, ASU NWU & Argon Plant

4-Ammonia Plant rotating shift

B-Off Sites & Utilities:

1-DM Plant, Cooling Towers, Air Compressor

2-Effluent Treatment Plant, Methanol Storage Area

3-Raw Water Plant and final Pond

4-Sulphur Bentonite plant

1-GTG-HRSG plant & Ashing section

2-Steam Generation Plant

3-Material Handling Plant

D-Urea Plant

1-Compressor House, Ammonia Feed Pump, R & D Section

2-Centrifuge House, Cristalyser Section Priling Tower, Melter, Distributors, CFD etc.

3-Conveyors, Stitching Machines, Stitching Station etc.

4-Urea Gold Plant

E-New Ammonia plant jobs

1-XP 301 strainer opening/ box-up

2-P 301 pump strainer opening/box-up

3-IAD filter replacement

United Engineering Enterprises Pvt Ltd (BID ID -921109)

M/S Bharat Mechanical and Structural Work (BID ID -921289)