Tender For Arc For Misc. Mech. Repair Jobs For The Year 2026-27; 2 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 3 Rate per inch nominal dia of pipe per welding joint 4 1-Upto & Including Sch40 5 2-Above Sch40 & upto Sch80 6 3-Above Sch80 & upto Sch 160 7 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. 8 Rate per inch nominal dia of pipe per welding joint 9 1-Upto & Including Sch40 10 2-Above Sch40 & upto Sch80 11 3-Above Sch80 & upto Sch 160 12 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. 13 Rate per inch nominal dia of pipe per welding joint 14 1-Above Sch40 & upto Sch80 15 2-Above Sch-80 and upto Sch-160 16 D-Cutting of CS pipes, flanges & other fittings &shifting to sites as per instruction of Engineer in charge: 17 Rate per inch nominal dia of Pipe 18 1-Upto & Including Sch40 19 2-Above Sch40 & upto Sch80 20 3-Above Sch80 & upto Sch 160 21 E-Cutting of CS plate. 22 Rate per running inch 23 1-Upto & including 6 mm thickness 24 2-Above 6 mmupto 12 mm thickness 25 3-Above 12 mm upo 20 mm thickness 26 4-Above 20 mm thickness 27 F-Cutting of SS Plate. 28 Rate per running inch 29 1-Upto & including 3 mm thickness 30 2-Above 3 mmupto 6 mm thickness 31 3-Above 6 mm upto 10 mm thickness 32 G-Cutting of SS pipes, flanges & other fittings &shifting to sites as per instruction of Engineer in charge 33 Rate per running inch 34 1-Upto & Including Sch40 35 2-Above Sch40 & upto Sch160 36 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. 37 Rate per inch nominal dia per Meter length of Pipe 38 1-Upto & including Sch40 39 2-Above Sch40 & upto Sch80 40 3-Above Sch-80 and upto Sch-160 41 I-Fabrication of eccentric reducer and other fabrication out of plate fabrication. 42 Rate per inch welding length 43 1-Upto 6 MM Thickness 44 2-7 MM to 10 MM thickness 45 3-11 MM to 15 MM thickness 46 4-16 MM to 25 MM thickness 47 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. 48 1-Upto 6 MM Thickness 49 2-7 MM to 10 MM thickness 50 3-11 MM to 15 MM thickness 51 4-16 MM to 25 MM thickness 52 K-Rate per MT 53 1-Fabrication & Erection of Steel Structurelike Chutes, Staircase, Ladder Platform, Walkways, Railings ,Pipe Support etc. 54 2-Dismantlingof varioustypeof Structure, Vessels,Pumps, Gear boxes, pipes , Heat Exchangers and Miscellaneous equipments byGascuttingof bolts etc. Opening thebolts atvarious Elevation including openingof flanges, bolts, nuts welding alignment and allied jobs 55 3-Erection of various typesof Structures,Vessels,Pumps, Gear boxes, Heat Exchangers and miscellaneous Equipmentat various elevation including boxing up of flanges bolts & nuts, welding,alignment and allied jobs. 56 L-Replacement of stair case grating and floor grating. 57 1-Replacement of damaged pre-fabricated Staircase/Floor Grating by fabrication. 58 M-Fabrication of clamp and fixing of feed plate(patch wor)/clamp as per requirement( Attending leakages as per the Scope of work) 59 1-Clamp size 2’ to 4” 60 2-Clamp size5” to 8” 61 3-Clamp size10” to 14” 62 4-Clamp size15” to 20” 63 Annexure-II 64 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. 65 Rate per inchdiameter 66 1-Upto 300 lbs rating valve 67 2-600 lbs to 900 lbs rating Valve 68 3-1500 lbs rating Valve & above 69 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. 70 Rate per inchdiameter 71 1-Upto 300 lbs rating valve 72 2-600 lbs to 900 lbs rating Valve 73 3-1500 lbs rating Valve & above 74 C-Replacment of welded valve by IBR welder 75 1-Upto 1500 lbs rating Valve 76 D-Opening & Fixing ofbonnet 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. 77 Rate per Inch Nominal dia of valve 78 1-Valve upto300 psi rating 79 E-Opening & boxing up of flanges and manhole covers: 80 1-Upto300 psi rating 81 2-From600 to 900 psi # 82 3-1500 psi and Above 83 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. 84 1-Flanges of rating 150# 85 2-Flanges of rating 300# 86 3-Flanges of Rating 600# 87 G-Additional items to be excuted in different Section/Plant. 88 1-Heating of Pipelines, Mechanical Components like Bearings, Couplings, Hubs etc. during Mounting/ Dismounting at the time of assembly of Equipments 89 Annexure-III 90 A-Opening, Removal & boxing up of Dish End of Heat Exchanger. 91 Reate per Inch dia of Dish End. 92 1-Upto 12 Dia 93 2-Above 12 to 36 Dia 94 3-Above 36 95 B-Replacement of Tube bundle of Heat Exchanger. 96 1-RemovalofTubebundleofHeat Exchanger 97 2-Re-fixing of TubebundleofHeat Exchanger 98 Annexure-IV 99 A-Jobs pertaining to SGP/CPP. 100 Ash Handling system of SG Plant 101 1-Opening & Boxing up of B - B/B-C Adopter Sleeve Coupling from Size 150 mm to 300 mm dia. 102 2-Replacement of CI Fly Ash Pipe Line Size from 150 mm to 300mm (Max. length 5.5 MR) 103 3-Replacement of CI Elbow Short/long Radius, Size from 150 mm to 200mm dia 90/45 Degree. 104 4-Replacement of CI Lateral/Y Piece Size from 175 mm to 300mm dia 45 Degree. 105 5-Repair & ReplacementofAsh Extraction Valve (Ash Intake Valve) Size 150 mm to 175mm dia 106 6-Replacement ofValveBody along with Disc of Ash ExtractionValve Size 150 mm dia 107 7-Repair & Replacement of Totally Enclosed RotarySlide Gate (TERSG Valve, Size 200 mm diain FlyAsh linewhichincludes Removalof TERSGVale boxingupofTERSG Valve& Repair of Old TERSG Valve 108 8-Repair & Replacement ofVacuum Breaker Assy Size 150 mm dia 109 9-Exhauster HydroveyorAssembly Size 200 mm dia (Approx. wt. 400 Kg) 110 10-Replacement of CI Tube Combining (Tail piece) for Exhauster Hydroveyer Size 200 mm dia 111 11-Replacement of AirSeparatorTank of SG Plant (Approx Wt. 3 Te) 112 12-ReplacementofSegment of Air Separator Tank ofSGP(Approx Wt 175 Kg) 113 13-ReplacementofHydraulicEjector Assembly (Jet Pump Assy) of Bottom Ash System (Approx Wt. 275 Kg) 114 14-Replacement of Inlet Piece of Hydraulic Ejector of Bottom Ash System. 115 15-Replacement of Combining Tube of Hydraulic Ejector of Bottom Ash System. 116 16-Repair / Replacement ofButter fly Valve, Size 300 mm dia 117 17-Replacement ofBearingof Clinker Grinder of SG Plant 118 18-Repacking ofGlandof Clinker Grinder of SG Plant 119 19-Replacement of ClinkerGrinder Bearing.Replacement including related jobs i.e. Glandpacking Gear/Sprocket removalandfitting etc. of CPP 120 20-Replacement of Seal of Bottom Ash Hopper Gate including dismentling/ refixing of gate housing, power cylinder, service water line connection etc. 121 21-Repair & ReplacementofHydraulic Cylinder of Clinker Grinder. 122 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 123 B-Repair/Replacement of Coal & Oil Burner of SG Plant. 124 1-Repair & Replacement of Coal Burner Assy. 125 2-Repair & Replacement ofGas Burner Assy. 126 3-Repair & Replacement ofEndAir Nozzle Tips 127 C-Pulverised Fuel (P.F.) system of SG Plant . 128 1-Opening & Boxing up of PF Line Victaulic Coupling, Size 300 mm dia. 129 2-Opening & Boxing up of PF Line Orifice, Size 300 mm dia. 130 3-Rotation of PF Distributor Outlet Pipe, Size 300 mm dia. 131 4-Replacement of PF Distributor Outlet Pipe, Size 300 mm dia. 132 5-Replacement of Coal Bends, Size 300 mm dia upto 60 Degree. 133 6-Replacement of Coal Bends, Size 300 mm dia above 60 Degree upto 90 Degree. 134 7-Repair of small Distributor (includes removal of old worn out Riffle Elements, Build up Hard Facing and fitting of New Riffle Elements) 135 D-Jobs pertaining to Electro Static Precipitator of SGP 136 1-Dismantling & Removal of Collecting Electrode Plate. 137 2-ErectionofCollectingElectrode Plate 138 3-Replacement of Rapping Hammer (Outer Arm) 139 4-Repair & Replacement of Drive Shaft. 140 5-Repair & replacement ofGuideRod(Tie Rod) 141 6-Repair & replacement of Shock Bar 142 7-Replacement of Shock Pad. 143 E-Jobs pertaining to Coal Handling / Urea & Bagging Plant /Bentonite Sulphur Plant 144 1-Impact Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) after repair for 750 mm & 1000 mm wide Belt. 145 2-Replacement of Impact Idlers (Rollers) for 750 mm & 1000 mm wide Belt 146 3-Self Aligning Idlers (Rollers) Bracket Dismantling & Installation with new Idlers (Rollers) after Repair for 750 mm & 1000 mm wide Belt. 147 4-Replacement of Self Aligning Idlers (Rollers) for 600,750 mm & 1000 mm wide Belt. 148 5-Troughing Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) for 750 mm & 1000 mm wide Belt. 149 6-Replacement of Troughing Idlers (Rollers) of carrying side for 750 mm & 1000 mm wide Belt. 150 7-Return Idlers (Rollers) Bracket Dismantling & Installation with New Idlers (Rollers) after repair for 750 mm & 1000 mm wide Belt. 151 8-Replacement of Return Idlers (Rollers) for 600, 750 mm & 1000 mm wide Belt. 152 9-Clamp Fatener Joint for 750 mm width Conveyor Belt. 153 10-Replacement of Screen Cloth Panel of Vibrating Screen. 154 11-Replacement of conveyor belt/oil resistant conveyor belt 1000mm/800mm/ 750mm/600mm 155 12-Hot Vulcanizing Joint for 600/750/800/1000 mm wide Conveyer Belt/ oil resistant conveyor belt 156 13-Replacement of Decksheet for 1350x1250x3 mm 157 14-Replacement of Decksheet for 1350x1100x3 mm 158 F-Job pertaining to Air preheater 159 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) 160 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) 161 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) 162 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) 163 Annexure-V 164 A-Opening/Inspection & Re-fixing of Demister. 165 1-AFA-601 (Size 1500 x 150 mm) 166 2-AGC-601 (Size 1650 x 150 mm) 167 3-UDA-203 (Size 1788 x 100 mm) 168 4-UDA-402 (Size 800 x 100 mm) 169 B-Opening/Inspection & Replacement of Demister in New Ammonia Plant. 170 1-F 302 CO2 absorber demister replacement 171 2-F 551 Purge Gas Absorber demister replacement 172 Annexure - VI 173 A-Supply of Contract labour for unplanned/unforeseen Plant Break-down/Shut-down Jobs: 174 Labour Rates (Rate per working day of 8 Hours)) 175 1-General Fitter/HES fitter(Highly Skilled Labour) 176 2-Auto Electrician(Highly Skilled Labour) 177 3-Rigger(Skilled Labour Gr.B) 178 4-Welder (IBR) 179 5-Welder(Non-IBR)(Skilled Labour Gr.B) 180 6-Turner/Machinist(Highly Skilled Labour) 181 7-Mazdoor/Helper(Unskilled ) 182 B-Labour Rates (Over Time Rate per Hours) 183 1-General Fitter/HES fitter(Highly Skilled Labour) 184 2-Auto Electrician(Highly Skilled Labour) 185 3-Rigger(Skilled Labour Gr.B) 186 4-Welder (IBR) 187 5-Welder(Non-IBR)(Skilled Labour Gr.B) 188 6-Turner/Machinist(Highly Skilled Labour) 189 7-Mazdoor/Helper(Unskilled ) 190 Annexure-VII 191 ITEM FOR UREA PLANT: 192 A-Opening & boxing up of swirl of UDA-201. 193 1-OD of perforated plate: 2050 MM, No. of Swirl: 1087 194 B-Opening and Box-up of Demister & Perforated plates of UDA-202 195 C-Opening and Box-up of UGA-403 strainer. 196 D-Opening and box-up of UGA-404 Strainer 197 E-Opening & box up of UGB-102 motor radiator. 198 F-Repair of Wagon Hauler: 199 1-Single Joint of Wire Rope 200 2-Double Joint of Wire Rope 201 3-ReplacementofBearingofWagon Hauler Pulley 202 4-ReplacementofWagon Hauler Pulley 203 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 204 G-Repair of Bucket Elevator. 205 1-Replacement of Chain along with bucket 206 2-Replacement ofSprockets,Head Tail End 207 3-Replacement ofBearings of Sprockets 208 4-Replacement of Each Bucket. 209 H-Replacement of Troughing, Carrying Rollers Assembly complete by removing & re-fixing of brackets. 210 1-For 1000 mm wide belt 211 2-For 600 mm wide belt 212 3-For 400 mm wide belt 213 I-Replacement of Return Rollers . 214 1-For 1000 mm Belt 215 2-For 600 mm Belt 216 J-Replacement of gearbox of conveyor belt in Urea and Bagging Plant. 217 1-600 mm 218 2-1000 mm 219 K-Job in Dust Chamber: 220 1-Replacement of dust chamber Filter 221 2-Opening & Boxing-up of 2 Nozzle 222 L-Repair of CFD Bed: 223 1-Removal & re-fixing of SS Strip. 224 2-Removal & re-fixing of 12 MMSkirt bolts. 225 3-Cutting & Straightening ofSkirt plate 226 4-Removal & re-fixing ofComplete SS Wire Mesh 227 5-RemovalofSSperforatedplate straighteningandre - fixingof plates. 228 6-Fixing of Rubber Skirt 229 Annexure - VIII 230 A-Replacement of Conveyor belt pulley with new bearing. 231 For Urea Plant & Bagging Plant 232 1-Pulley size upto 650 dia x 1150 mm Length 233 2-Pulley dia upto 850 mm xLength upto 1200 mmfor conveyor belt upto 1000 mm width 234 B-Replacement of Expansion Bellow: 235 1-Expansion Bellow size 1120x1780x 300 mm 236 2-Expansion Bellow size 1200x4445x 250 mm 237 3-Expansion Bellow size 1700x4364x 250 mm 238 4-Expansion Bellow size 1700x2240x 250 mm 239 5-Expansion Bellow size 4200x5760x 360 mm 240 Annexure - IX 241 A-ITEMS FOR MECHANICAL WORKSHOP 242 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) 243 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) 244 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. 245 4-Assistance for repair of valves/overhauling and for fabrication shop 246 B-Job pertains to Heavy Earth Moving Section (Auto Section) 247 Rate for No. of Times jobs to be done in a year 248 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 249 C-Deployment of Operator for operating various equipments. 250 1-127 Te/75Te Crane 251 2-50 HX Backhoe Loader 252 3-14 Te/8 Te/5Te/3Te Hydra 253 4-Tractor 254 D-Deployment of Operator for operating various equipments. (Over time rate/ hour) 255 1-127 Te/75Te Crane (Over time) 256 2-50 HX Backhoe Loader (Over time) 257 3-14Te/8 Te/5Te/3Te Hydra (Over time) 258 4-Tractor 259 Annexure-X 260 Load Testing of Cranes and Lifting Tackles: 261 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. 262 Cranes/Hydra/EOT Cranes 263 1-TATA P&H Crane Cap. 127 Te, Located at Mech Workshop 264 2-TATA P&H Crane Cap.75 Te, Located at Mech Workshop 265 3-Coles Crane Cap.12.5 Te, Located at Mech Workshop 266 4-Hydra 8Te Located at Mech Work-shop 267 5-Hydra 5 TeLocatedatMech. Work-shop 268 6-Hydra 3 TeLocatedatMech. Work-shop 269 7-M/s Garlic Udyog O/H Crane, capacity 20 Te in Urea Compressor House. 270 8-M/s Mukand Engg. O/HCraneCap. 20/5 Te in Ammonia Comprssor House 271 9-M/s Garlic Udyog O/H Crane, capacity 10 Te in Workshop. 272 10-M/s Garlic Udyog O/H Crane, capacity 5 Te in O&U Compressor House. 273 11-M/s Khandewal Udyog EOTCrane Cap. 5 Te of Urea Pump House and Bagging Plant Empty Bag Store 274 12-M/s Garlic Udyog O/H Crane, capacity 0.5 Te in RWP Chemical Dozing House 275 13-M/s khandewal Udyog O/H Crane, capacity 43/10 Te in TG House CPP. 276 14-Single Girder EOT Crane (BUC Make), capacity 5 Te, Located at Slurry Pump House and Ash Water Pump House. 277 15-Wire Rope Hoist (TAK Elect. Make), capacity 7.5 MT at Prilling Tower Top. 278 16-Wire Rope Hoist (Tirfor Make), capacity 1.6 MT at Urea Syn. Reactor Top. 279 17-Wire Rope Hoist, capacity 2 MT at Hydro Vector Tower of SG Plant. 280 18-Wire Rope Hoist, capacity 2 MT at Hydro Vector Tower of CPP Plant. 281 19-Chain Hoist, capacity 2 MT at Bowl Mills Bay & Firemans Floor in SGP and Coal Feeder in CPP. 282 20-M/S garlic udyog O/H EOT crane capacity 25/5 Te in old ammonia compressor house 283 21-M/S armsel engg. O/H EOT crane capacity 25/5 Te in new ammonia compressor house 284 22-M/S HERCULEOS. O/H EOT crane capacity 1Te in Bentonite Sulphur plant 285 23-Pick & Carry Crane( 14 Te Hydra) 286 B-Chain Pulley Blocks. 287 Rates for Testing only. 288 1-Chain Pulley Block, capacity 0.5 Te 289 2-Chain Pulley Block Capacity 1.0Te 290 3-Chain Pulley Block, capacity 1.5 Te 291 4-Chain Pulley Block Capacity 2.0Te 292 5-Chain Pulley Block Capacity 3.0Te 293 6-Chain Pulley Block Capacity 4.0/5.0Te 294 7-Chain Pulley Block Capacity-7.5/10.0Te 295 C-Rates for Repair/Overhauling & Testing 296 1-Chain Pulley Block Capacity0.5 Te 297 2-Chain Pulley Block Capacity1.0 Te 298 3-Chain Pulley Block Capacity2.0 Te 299 4-Chain Pulley Block Capacity3.0 Te 300 5-Chain Pulley Block Capacity4.0/5.0 Te 301 6-Chain Pulley Block, capacity 7.5 Te 302 7-Chain Pulley Block, capacity 10.0 Te 303 Annexure - XI 304 Electrical Dept. 305 A-Shifting of ID Fan Motors. 306 1-Shifting of ID Fan Motors 307 2-Replacement and shifting of UJD-301 A & B Screw conveyor geared motors 308 B-Opening/fixing of Electrical Motors and placing in the Plant for repair. Repair will be in the scope of NFL. 309 Rates when Motors are not to be shifted to Elect. Workshop 310 1-From 11 K.W. to 90 KW 311 2-From 90 K.W. to 315 KW 312 3-Above 315 KW Motor 313 C-Rates when Motors are to be shifted to Elect. Workshop 314 1-From 11 K.W. to 90 KW 315 2-From 90 K.W. to 315 KW 316 3-Above 315 KW Motor 317 4-UGB-302, 600 KW at Prilling Tower Top at 65 Meter Height (Approximate Weight 6 MT) 318 5-UGA-302 A & B, 125 KW at Prilling Tower Dust Chamber at 50 Meter Height (Approximate Weight 1.5 MT) 319 Annexure - XII 320 Valves pertaining in Instrument Dept. 321 A-Upto & including 3 dia 322 1-Opening upto 600 lbs Rating. 323 2-Re-fixing upto 600 lbs Rating. 324 3-Opening above 600 lbs Rating. 325 4-Re-fixing above 600 lbs Rating. 326 B-Above 3 dia and upto & including 6 dia: 327 1-Opening upto 600 lbs Rating. 328 2-Re-fixing upto 600 lbs Rating. 329 3-Opening above 600 lbs Rating. 330 4-Re-fixing above 600 lbs Rating. 331 C-Above 6 dia and upto & including 12 dia: 332 1-Opening upto 600 lbs Rating. 333 2-Re-fixing upto 600 lbs Rating. 334 Annexure - XIII 335 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. 336 1-Economiser Tube Welding Joint (Upto Tube OD 63.5 mm) 337 2-Economiser Tube Length Erection (Upto Tube OD 63.5 mm) 338 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). 339 1-Water Wall Tube Welding Joint (Upto Tube OD 76.2 mm) 340 2-Water Wall Tube Length Erection (Upto Tube OD 76.2 mm) 341 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). 342 1-Super Heater Tube Welding Joint (Upto Tube OD 63.5 mm) 343 2-Super Heater Tube Length Erection (Upto Tube OD 63.5 mm) 344 D-Repair job in Steam Drum and Mud Drum of BHEL & MES Boiler 345 1-Plug Welding in Steam Drum and Mud Drum of BHEL & MES Boiler 346 2-Seal Welding in Steam Drum of BHEL & MES Boiler 347 3-Seal Welding inMud Drum of BHEL & MES Boiler 348 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: 349 1-Upto & including 10 meter height 350 2-Above 10 Meter upto & below 25 meter height 351 3-Above 25 Meter Height 352 Annexure - XIV 353 A-REPAIR/OVERHAULING OF BOWL MILLS AND MAINT. OF ASH DISPOSAL LINE EXHAUSTER & GEAR BOX AND ITS COMPONENTS 354 JOB PERTAINS TO RC FEEDER: 355 1-Replacement(Including Fabrication & Hard facing) of Square Coal Feed Chute between Coal Bunker Hopper and Coal Feed Gate. 356 2-Reapir & ReplacementofCoalFeed Gate (Including Hard Facing) 357 3-Replacement(Including Fabrication & Hard facing) of Square Inverted Pyramid Coal Inlet Chute between Coal Feed Gate & RC Feeder. 358 4-ReplacementofFeedRoll Blades of RC Feeder (1 Set = 6 Nos.) 359 5-Replacement ofFeed RollSpiderAssemblyof RC Feeder 360 6-OverhaulingincludingRepair & Replacementof RC Feeder 361 7-Repair & Replacement ofHingGateMechanism Assembly of RC Feeder 362 8-Repair & Replacement ofHingGate& Blade Assembly of RC Feeder 363 9-Replacement(Including Fabrication & Hard facing) of Coal Discharge Chute between RC Feeder and Coal Feed Pipe of Bowll Mill. 364 B-JOB PERTAINS TO BOWL MILL: 365 10-Repair of ConverterHead bypatch welding and Box up. 366 11-Replacement of new Converter Head 367 12-Adjustment ofclearance (Gap)betweenRoller Journal Assembly & Bull Ring and pressure Ring Assembly. 368 13-Replacement of Roller Journal Assembly 369 14-Repair & Replacement of Inner Cone 370 15-OverhaulingincludingRepair & Replacementof Wear Components of Bowll Mill excluding Gear box. 371 16-Replacement of Worm Shaft Assy including blue matching of Worm Shaft & Gear Wheel and alignment. 372 17-Overhauling of Worm Shaft Assembly 373 18-OverhaulingincludingRepair & Replacementof complete Bowl Mill. 374 19-Preventive Maint.of Oil PumpAssembly including lower Bearing Housing. 375 20-Replacement of scraper Assembly of Bowl Mill. 376 21-Opening & Boxing upofonesegment ofSkirt Assembly (for inspection of vertical Shaft & its Upper Guide Bearing) 377 22-Replacement of Skirt Assy(1 No. = 4 segments) 378 23-Opening & Boxing upofBibby / Gear Coupling between Bowl Mill and Exhauster or Motor for Inspection. 379 24-Alignment of Bibby / Gear Coupling between Bowl Mill and Exhauster or Motor. 380 25-Replacementof coupling including alignment ofcoupling between Bowl Mill and Exhauster or Motor. 381 26-Overhauling of Hot Air Gate 382 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) 383 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.) 384 C-JOB PERTAINS TO EXHAUSTER: 385 29-Opening & Boxing up ofManhole Coverfor Inspection of Exhauster. 386 30-Opening & Boxing up of Manhole Cover and assistance in balancing. 387 31-Replacement of peripheryLiners # II (below door) of Exhauster (including opening & boxing up of Manhole Cover) 388 32-Replacement of periphery Liner(door) of Exhauster (including opening & boxing up of Manhole Cover) 389 33-Replacement of periphery Liners # III (above door) of Exhauster (including opening & boxing up of Manhole Cover) 390 34-Replacement of periphery Liners # IV (Top) of Exhauster (1 set = 4 Nos.) 391 35-ReplacementofFanBladesandbalancingof Exhauster (1 set = 6 Nos.) 392 36-ReplacementofWhizerBladesandbalancingof Exhauster (1 set = 6 Nos.) 393 37-Replacement of Whizer Disc and balancing. 394 38-Replacement of Fan Intake pipe of Exhauster. 395 39-Fabrication & Erection of Fanintakepipe(Rate should be on per meter basis) 396 40-Replacement of Exhauster suction Elbow alone. 397 41-Replacement of Discharge Neck of Exhauster alone. 398 42-Replacement of Stub End Victaulic Coupling of Discharge Neck of Exhauster alone. 399 43-Replacement of complete ED Valve Assembly including Disc, Shaft, Bushing and Power Cylinder alone. 400 44-OverhaulingofED Valve Assy including repair & replacement of Body, Disc, Shafts & Bushing etc. alone. 401 45-Overhauling & Replacement of Bearing Housing Assembly of Exhauster alone. 402 46-Overhauling including Repair & Replacement of Exhauster Assy including Bearing Housing, Exhauster Casing & ED Valve Assembly. 403 47-Overhauling including Repair & Replacement of Exhauster Assy.incuding bearing housing butexcluding Exhauster Casing and ED Valve Assembly. 404 48-Overhauling including Repair & Replacement of Exhauster Assy. excluding replacement of Bearing Housing Assembly, ED Valve Assembly andExhauster Casing. 405 49-Replacement of complete Riffle Element of big Riffle Distributor for Pulverised Fuel. 406 50-Replacement of big Riffle Distributor Assembly for Pulverised Fuel. 407 51-Replacement of complete Riffle Element of small Riffle Distributor for Pulverised Fuel. 408 52-Replacement of small Riffle Distributor Assembly for Pulverised Fuel. 409 53-Replacement of Motor of Bowl Mill 410 54-Replacement of Extension Ring & Strip 411 55-Replacement of spring Assy. 412 56-Replacement of Jack bolt 413 57-Replacement of Ash water Pump in SGP including alignment 414 58-Replacement of Bearing of Ash Water Pump in SGP which includes matching of Bearing surface with shaft. 415 59-Replacement of flange segment for exhauster(removed by cutting alinging&refixing in position by welding on both sides. 416 Annexure - XV 417 A-MAINTENANCE OF ASH DISPOSAL LINE TOASH POND 418 1-Replacement of Knife Edge Gate of 12 inch dia Motor Operated Knife Edge Gate Valve. 419 2-Opening & Boxing up of 12 dia spool piece in the suction line of Ash Slurry Pump. 420 3-Opening & Boxing up of 12 x 10 dia Reducer in the suction line of Ash Slurry Pump. 421 4-Replacement of 12 Inch dia 150# Pipe Sleeve Coupling. 422 5-Replacement(Including Repair) of 12 NB 45 Degree C.I. Elbow. 423 6-Replacement(Including Repair) of 12 NB 45 Degree C.I. Offset Elbow (S Elbow) 424 7-Replacement(Including Repair) of 12 NB 90 Degree C.I. Elbow. 425 8-Replacement(Including Repair) of 12 NB 45 Degree C.I. Letral. 426 9-Replacement of 14 dia 150# Pipe Sleeve Coupling. 427 10-Replacement(Including Repair) of 14 NB 45 Degree C.I. Elbow. 428 11-Replacement(Including Repair) of 14 NB 90 Degree C.I. Elbow. 429 12-Replacement of gasket of 12 dia Ash disposal line. 430 Annexure-XVI 431 A-Jobs pertains to Cooling Tower 432 1-Opening & boxing up of sump striner of cooling towers for inspection 433 B-Jobs Pertains to Sulphur Bentonite plant 434 1-BF-02 filter replacement ofsize 200NB 435 2-Replacement of Gear Pumps 436 3-Stainless steel belt jointing job (1 mm thickness) 437 a-Cracks jointing job 438 b-Patch jointing job 439 c-Cracks jointing job 440 d-Patch jointing job 441 C-Jobs Pertaining to GTG-HRSG Plant 442 1-NG filter element replacement of size 12”, 300# 443 2-GTG Air Intake Filter Replacement. 444 Annexure-XVII 445 Various Plant Jobs: 446 To assist NFL Employee in executing various Mechanical Maintenance Jobs in routine day to day maintenance in general shift & Plant shift. 447 A-Ammonia Plant 448 1-Reformer Area AFC Plant 449 2-CO Area AFC Plant 450 3-Compressor House, ARU, Synthesis Section, ASU NWU & Argon Plant 451 4-Ammonia Plant rotating shift 452 B-Off Sites & Utilities: 453 1-DM Plant, Cooling Towers, Air Compressor 454 2-Effluent Treatment Plant, Methanol Storage Area 455 3-Raw Water Plant and final Pond 456 4-Sulphur Bentonite plant 457 C-SMC 458 1-GTG-HRSG plant & Ashing section 459 2-Steam Generation Plant 460 3-Material Handling Plant 461 D-Urea Plant 462 1-Compressor House, Ammonia Feed Pump, R & D Section 463 2-Centrifuge House, Cristalyser Section Priling Tower, Melter, Distributors, CFD etc. 464 3-Conveyors, Stitching Machines, Stitching Station etc. 465 4-Urea Gold Plant 466 E-New Ammonia plant jobs 467 1-XP 301 strainer opening/ box-up 468 2-P 301 pump strainer opening/box-up 469 3-IAD filter replacement
