Tender For Work Contract For Aoh Of Boilers-Pressure Parts Of Unit # 4 At 2X660mw, Sstpp, Mppgcl, Dongalia. (T-2022_Mppgc_237457), dongalia-Madhya Pradesh

Work Contract For Aoh Of Boilers-Pressure Parts Of Unit # 4 At 2X660mw, Sstpp, Mppgcl, Dongalia. ( T-2022_Mppgc_237457 ) -PREPARATION OF QUICK ERECT SCAFFOLDING SYSTEM (CUP-LOCK SYSTEM) IN BOILER FURNACE: 3 INTERNAL CLEANING OF BOILER II ND PASS 4 CLEANING OF ASH FROM ECONOMIZER HOPPER, DEAD CHAMBER, CAT HOUSE DOG HOUSE 5 PREPARATION OF SCAFFOLDING IN BOILER HORIZONTAL PASS (SCREEN TUBES, RE-HEATER HANGER, SUPER HEATER HANGER TUBES) 6 PREPARATION OF SCAFFOLDING ABOVE ECONOMIZER HOPPER FOR INSPECTION OF ECONOMISER LOWER BANK COILS. 7 PREPARATION OF SCAFFOLDING AT WW RING HEADER FOR INSPECTION OF RING HEADER & REFIXING/REPLACEMENT OF ORIFICES. 8 INSPECTION OF COMPLETE BOILER PRESSURE PARTS (I ST & II ND PASS) 9 INSPECTION/REPAIR OF ALL PEEP HOLES IN BOILER 10 CLEANING AND REPAIR OF All WIND BOXES 11 SERVICING OF SECONDARY/ADDITIONAL AIR PORT DAMPERS 12 PREPARATION OF SCAFFOLDING IN BOTTOM ASH HOPPER AND FRONT/REAR S- PANEL BACKSIDE, COVERING THE S- PANEL COMPLETELY WITH SHEETS FOR SIMULTANEOUS CHECKING, REPAIRING WORK IN BOTTOM ASH AREA AND FURNACE TOGATHER: 13 DYE PENETRATIONN TEST (DPT) 14 TRANSPORTATION OF ASH, SCRAPS, DEBRIS AND OTHER WASTE MATERIAL (INCL. LOADING. /UNLOADING) 15 THOROUGH CLEANING OF BOILER FROM INSIDE BY USING HYDRO-JET CLEANING METHOD 16 COMPLETE EXTERNAL CLEANING OF THE BOILER FROM TOP TO BOTTOM 17 SECTION-B 18 RECTIFICATION, REPLACEMENT AND REFIXING OF PROTECTION SLEEVE (SHIELDING) IN VARIOUS AREAS OF BOILER TUBES. 19 PREPARATION OF BOILER TUBE SURFACE FOR TUBE THICKNESS SURVEY 20 (Section-C) WELDING OF HP JOINTS AND ALIGHMENTOF BOILER TUBES/COILS/BANKS 21 WATER WALL TUBES (PRIMARY AND SECONDARY PASS)/RIFLE TUBES, SCREEN TUBES, HANGER TUBES ETC. 22 PRIMARY SUPER HEATER TUBES 23 SECONDARY SUPER HEATER TUBES 24 TERTIARY SUPER HEATER TUBES 25 PRIMARY SUPERHEATER SUPPORT/HANGER TUBES 26 PRIMARY REHEATER SUPPORT/HANGER TUBES 27 PRIMARY AND SECONDARY REHEATER TUBES 28 ROOF TUBES 29 ECONOMIZER SUPPORT TUBES 30 ECONOMIZER COILS IN REHEATER AND SUPERHEATER PASS 31 ALIGNMENT OF COILS OF TERTIARY/FINAL SUPERHEATERS 32 ALIGNMENT OF COILS OF SECONDARY SUPERHEATERS 33 ALIGNMENT OF COILS OF SECONDRY/FINAL REHEATERS 34 ALIGNMENT OF COIL OF ECONOMIZER 35 ALIGNMENT OF COIL OF PRIMARY SUPERHEATER 36 ALIGNMENT OF PRIMARY REHEATER COIL 37 WELDING OF FINS 38 RE-ENFORCEMENT OF WELDED JOINTS 39 PAD WELDING OF BOILER TUBES AT VARIOUS LOCATIONS (SIZE 50mmX50mm) 40 CHECKING AND RECTIFICATION OF SUPPORTS/HANGERS OF CRITICAL PIPE LINES 41 CHECKING AND RECTIFICATION OF EXPANSION INDICATOR IN BOILER AREA 42 (Section-D) APPLICATION/REPAIR OF REFRACTORY (WHYTHEAT C/WHYTHEAT C PATCH) / BSF BLANKET AT VARIOUS LOCATIONS OF BOILER 43 BOTTOM ASH HOPPER GR-C 44 PENT HOUSE, DOORS & WINDOWS ETC. (ADDITIONAL AIR PORT/WATERWALL TUBES) GR.-C/HTC 45 MAN HOLES, PEEP HOLES, ROOF SEAL BOXES GR-C 46 HYDRAULIC TEST OF BOILER PRESSURE PART & PREPARATION FOR BOILER LIGHT UP 47 (SECTION-E) 48 COMPLETE SERVICING/OVERHAULING OF HP VALVES (MIV/MOV) 49 >25 mm & up to 50 mm 50 >50mm & up to 100 mm 51 >100 mm & up to200 mm 52 Above 200 mm 53 COMPLETE SERVICING OF CONTROL VALVES (EXCLUDING ACTUATOR). 54 >25 mm & up to 50 mm 55 >50mm & up to 100 mm 56 >100 mm & upto200 mm 57 Above 200 mm 58 REPLACEMENT OF VALVES (WELDED TYPE) 59 Up to 25 mm 60 >25 mm & up to 50 mm 61 >50mm & up to 100 mm 62 (SECTION-F) 6.1. COMPLETE SERVICING OF SPRING-LOADED SAFETY VALVES 63 WATER SEPARATOR SV 64 MAIN STEAM LINES SV 65 CRH LINES SV 66 HRH LINES SV 67 ELECTROMATIC RELIEF VALVE AND PILOT VALVE 68 (SECTION G) 69 PREPARATION OF HP TUBE BENDS 70 REPAIR OF PENT HOUSE/SKIN CASING OF BOILER 71 REPAIRING OF DEAD CHAMBER 72 (SECTION H) APPLICATION OF THERMAL INSULATION 73 COMPLETE BOILER FROM BOTTOM ASH HOPPER TO PENT HOUSE 74 STEAM AND WATER PIPING 75 ESP 76 AIR HEATER & HOPPER 77 FUEL OIL AND ITS STEAM PIPING INCLUDING HEATERS FILTERS ETC. 78 (SECTION -I) 79 SERVICING OF MAIN STEAM STOP VALVE 80 SECTION-J 81 COMPLETE OVERHAULING & RESETTING OF WATER WALL SOOT BLOWER: - 82 COMPLETE OVERHAULING & RESETTING OF LONG RETRACTABLE SOOT BLOWER: - 83 (SECTION -K) INSTALLATION AND MAINTENANCE OF CCTV CAMERA TO DIFFERENT LOCATIONS OF BOILER 84 work of installation and implementation of CCTV surveillance system during AOH

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	05-04-2023	Fifth Extension of Due date	Date	12-04-2023
2	09-03-2023	2nd Due date extension	Date	17-03-2023
3	20-03-2023	3rd extension of due date	Date	27-03-2023
4	28-02-2023	First Extension of Due date	Date	07-03-2023
5	29-03-2023	4th extension of due date	Date	03-04-2023

INR 5000 /-

INR 200000.0 /-

INR 1.16 Crore /-