Biennial Service Contract(2025-27)Regarding Mechanical Maintenance And Boiler Tube Leakage Rectification Job Of Unit#3&4 (2X500mw),Sgtpp Sl No- 1.01-1.02: Mandatory Jobs; Sl No- 1.03-1.22: Piecemeal Job;Sl No- 1.23-1.3: Mill Overhauling & Maintenance;Sl N, Murshidabad-West Bengal

BIENNIAL SERVICE CONTRACT(2025-27)REGARDING MECHANICAL MAINTENANCE AND BOILER TUBE LEAKAGE RECTIFICATION JOB OF UNIT#3&4 (2X500MW),SGTPP SL NO- 1.01-1.02: mandatory jobs; SL NO- 1.03-1.22: piecemeal job;SL NO- 1.23-1.3: Mill overhauling & maintenance;SL NO- 1.31-1.57: Boiler Tube leakage-0 1 MechanicalMaintenance mandatory works of SGTPP U#3 &4 boiler (500 MW*2) & auxillaries 2 Safety Equipment[including PPE] 3 Roller Journal servicing 4 Steel work 5 MRS conveying line[125NB] replacement 6 APH seal adjustment 7 Removal of damaged roller journal 8 Coal pipe bend/straight pipe replacement 9 APH gearbox replacement 10 HFO/LDO pump replacement 11 ID fan bearing replacement 12 OH of Seal air fan with runner replacement 13 PA/FD fan Rotor replacement 14 PA/FD Fan blade replacement 15 Area/Equipment Cleaning with scope of supply of separate manpower, conveying vehicle like Tructor with operator and fuel 16 Painting work [Structure+Equipment+Mill] 17 PAF/FDF suction strainer[Top,Net,Silencer module] 18 APH hot washing[4 no APH per set] 19 Hiring of Hydra(14 TON) With Fuel &Operator 20 MRS Dome seal replacement 21 ID/FD/PA/MILL Motor shifting 22 Safety valve servicing 23 Coal mill overhauling including RJ assembly set servicing 24 Classifier Inner cone replacement 25 Bowl/Yoke hub replacement 26 Coal mill gear box replacement 27 Roller Journal hard facing work 28 Coal Feeder Overhauling 29 Coal Feeder O/L Chute Replacement 30 Replacement of input shaft bearing[DE/NDE] of coal mill gear box 31 Water wall Tube Joint Without scaffolding tube OD 51XT6.0MM,SA210 GR-C 32 Economiser Coil Joint Without Scaffolding Tube OD 38.1XT5.3MM, SA210 GR-A 33 LTSH Joint Without Scaffolding Tube OD 47.63XT6.6MM, SA213 T11 34 Divisional Panel Joint Without Scaffolding Tube OD 51XT 7.1 MM,SA213 T22 35 Divisional Panel JointWithout Scaffolding Tube OD 45.5XT 5.6 MM,SA213 T91 36 Platen SH Joint Without Scaffolding Tube OD 51XT 6.3 MM,SA213 T22 37 Platen SH Joint WithoutScaffolding Tube OD 63.5XT 8.0 MM,SA213 TP 347H 38 RH Joint WithoutScaffolding Tube OD 47.63XT 4.5 MM,SA213 T11 39 RH Joint Without Scaffolding Tube OD 54.00XT 5.0 MM,SA213 T91 40 Screen Tube/Arch Tube/Water Wall HangerTube/Steam Cooled Wall/Roof Tube Without Scaffolding Tube OD 63.5X12 MM SA210 GR C 41 LTSH Hanger Tube Without Scaffolding Tube OD 51X11 MM SA210 GR C 42 ECO Hanger Tube Without Scaffolding Tube OD 45.5X7.1 MM SA210 GR C 43 Other SH Joints Tube 44 Stress Relieving per day 45 Removal/Refitting/Fabrication Of Guard 46 Build-Up On Eroded Tubes If Found 47 RT Per Day 48 Welding Of Membrane Strip/Fins For boiler 49 Fabrication Of Different Sizes Of Bends, U-Loop ETC 50 Horizental Scaffolding For Approaching RH,Platen SH,Div PNL, Screen Tube,Roof Tube,Per 6M Horizontal 51 Vertical Scaffolding At Furnace Wall, Roof Tube,Platen, Div PNL, Economiser. Per 6M Vertical 52 D-Metering of PR Parts /Day Associate Scaffolding 53 Boiler 2nd Pass Washing By LP Water WithAssociate Scaffolding 54 Economiser / LTSH Per Coil Lowering And Subsequent Lifting After Completion of Job Without Welding Joint Including Coil Alignment 55 Complete Scaffolding Inside Boiler 56 Sky Climber Fitting Inside Boiler With Platform Over S-Panel 57 Minimum BTL job value to be paid per day

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