AOH Work of Boiler Pressure Part Unit No. 10 ,250 MW STPS, SARNI

SECTION-A

CLEANING OF BOILER

COMPLETE EXTERNAL CLEANING OF BOILER FROM TOP TO BOTTOM (UPTO ID FAN)

INTERNAL CLEANING OF BOILER IN IIND PASS

CLEANING OF PENT HOUSE, CAT HOUSE, DEAD CHAMBER

CLEANING OF PENT HOUSE AND ROOF

PREPARATION OF SCAFFOLDING

PREPARATION OF SCAFFOLDING IN BOILER HORIZONTAL PASS (SCREEN TUBES)

PREPARATION OF SCAFFOLDING ABOVE ECONOMISER HOPPER FOR INSPECTION OF ECONOMISER LOWER BANK COILS & C-HEADER.

PREPARATION OF QUICK ERECT SCAFFOLDING SYSTEM (CUP-LOCK SYSTEM) IN BOILER FURNACE (FROM BOTTOM ASH HOPPER TO FURNACE TOP INCLUDING SCAFFOLDING AT PLATEN SH AND REHEATER)

PREPARATION OF SCAFFOLDING IN WIND BOX

PREPARATION OF SCAFFOLDING IN CAT HOUSE FOR FRONT/REAR S-PANEL BACKSIDE CHECKING FOR REPAIRING

Inspection

INSPECTION OF COMPLTE BOILER PRESSURE PARTS (IST & IIND PASS)

INSPECTION & REPAIR OF ALL DOORS ,WINDOWS AND PEEP HOLES IN BOILER

INTERNAL INSPECTION & CLEANING OF BOILER DRUM

CLEANING AND REPAIR OF WIND BOX

WITH STEEL

WITHOUT STEEL

DYE PENETRATION TEST (DP TEST) WITH KIT

HYDRO JET CLEANING OF COMPLETE BOILER PRESSURE PARTS IN THE BOILER

PLATEN SUPERHEATER COILS.

RE-HEATER COILS.

WATER WALL ( FRONT, REAR, LEFT & RIGHT)

Section B

RECTIFICATION, REPLACEMENT AND REFIXING OF PROTECTION SLEEVE (SHIELDING) IN VARIOUS AREAS OF BOILER TUBES.

RECTIFICATION, REPLACEMENT AND REFIXING OF CASSETTE BAFFLES IN VARIOUS AREAS OF BOILER TUBES.

FABRICATION AND FIXING OF EROSION SHIELD

PREPARATION OF BOILER TUBE SURFACE FOR TUBE THICKNESS SURVEY

ASSISTANCE IN RADIOGRAPHY

WELDING OF HP JOINTS OF BOILER TUBES

WATER WALL TUBES-SCREEN TUBES, HANGER TUBES, REAR ARCH TUBES ETC.

LTSH TUBES

FINAL SUPERHEATER TUBES

ECONOMISER HANGER TUBES

STEAM COOLED SPACER TUBES

ROOF TUBES

REHEATER TUBES FRONT & REAR

ECONOMISER TUBES

WELDING OF FINS

RE-ENFORCEMENT OF WELDED JOINTS

ECONOMISER/REHEATER/LTSH/ WATER WALL

WELDING & REPLACEMENT OF DRAIN JOINTS

WELDING & REPLACEMENT OF TRACING LINE/SAMPLING LINE

PAD WELDING OF ERODED TUBES OF VARIOUS SIZE

PAD WELDING OF BOILER TUBES AT VARIOUS LOCATIONS ( SIZE 50MM X 50MM)

ALIGNMENT OF COILS/ TUBES / BLOWERS

ALIGNMENT OF TUBES OF PLATEN SUPERHEATERS

ALIGNMENT OF REHEATER COIL (FRONT/REAR)

ALIGNMENT OF WALLBLOWERS/SERVICING OF WALL BLOWERS

ALIGNMENT /SERVICING OF LONG RETRACTABLE SOOT BLOWER

ASSISTANCE IN HYDRAULIC TEST OF BOILER PRESSURE PART & PREPARATION OF BOILER FOR LIGHTUP

APPLICATION OF REFRACTORY AT VARIOUS LOCATIONS OF BOILER (GR.A)

REAR ARCH SOOT BOLWER AREA/ OTHER LOCATIONS/ BURNER MOUTH

APPLICATION OF REFRACTORY AT VARIOUS LOCATIONS OF BOILER (GRADE C)

PENT HOUSE, DOOR, WINDOW MANHOLE & PEEPHOLE, ETC/ DEAD CHAMBER & SCREEN VALVE/ FLUE GAS EROSION PLATE OF LTSH & ECO BEND/ COOLING PIPE OF SEAL PLATE/ OTHER AREAS (LIKE HOPPER HEADER ETC.)

SECTION-C

COMPLETE SERVICING/OVERHAULING OF HP VALVES

GLAND PACKING OF HP VALVES

UPTO 25 MM

25 MM TO 50 MM

50MM TO 100 MM

100 MM TO 200 MM

ABOVE 200 MM

COMPLETE SERVICING OF VALVES (EXCLUDING ACTUATOR):

UPTO 25 MM

25 MM TO 50 MM

50 MM TO 100 MM

100 MM TO 200 MM

ABOVE 200 MM

REPLACEMENT OF VALVES (WELDED TYPE)

UPTO 25 MM

25 MM TO 50 MM

50 MM TO 100 MM

100MM TO 200 MM

SERVICING OF MAIN STEAM STOP VALVE

SERVICING OF STOP VALVE/CONTROL OF FEED REGULATING STATION

SERVICING OF BOILER FILL PUMP

Section D

COMPLETE SERVICING OF SPRING LOADED SAFETY VALVES (SV)

BOILER DRUM SV

MAIN STEAM LINES SV

CRH LINES SV

HRH LINES SV

CLEANING / REPAIRING OF SAFETY VALVE DRAIN TRAY & LINE

ASSISTANCE IN SAFETY VALVE SETTING

SECTION-E

PREPARATION / FABRICATION OF HP TUBE BENDS

REPAIR OF PENT HOUSE

REPAIR OF PENT HOUSE BY PATCHING (WITHOUT STEEL)

DISMANTELING OF STEEL STRUCTURES/INSTALLATION OF NEW STEEL STRUCTURES (WITH STEEL)

REPAIR OF DEAD CHAMBER

REPAIR OF DEAD CHAMBER BY PATCHING

DISMANTELING OF STEEL STRUCTURES/INSTALLATION OF NEW STEEL STRUCTURES

REPAIR & SERVICING

BUCKSTAYS

DISMNETLING, INSTALLATION, FEBRICATION OF STRUTURE & MISC. WORKS I.E. CANOPY, BROKEN STAIR/RAILING/DRAIN COVERING ETC.

REPAIRING OF CAT HOUSE

WITH STEEL

WITHOUT STEEL

SERVICING & REPAIRING OF HANGERS & SUPPORTS

SECTION-F

PAINTING OF BOILER BASE STRUCTURE

REPAIRING OF HEADER STUBS HAND HOLE PLUGS

SHIFTING OF ECONOMISER COIL FROM ITS POSITION TO ABOVE ECONOMISER HOPPER LEVEL AND AFTER CHECKING & REPARING POSITIONING OF SAME

Insulation Work

REMOVAL/APPLICATION OF THERMAL INSULATION IN COMPLETE BOILER FROM BOTTOM ASH HOPPER TO PENT HOUSE

REMOVAL/APPLICATION OF THERMAL INSULATION IN STEAM AND WATER PIPING

REMOVAL/APPLICATION OF THERMAL INSULATION IN ESP

REMOVAL/APPLICATION OF THERMAL INSULATION INAIR HEATER & HOPPER

COAL MILL, FUEL OIL AND ITS STEAM PIPING INCLUDING HEATERS FILTERS ETC.

FLUE GAS & HOT AIR DUCT

SHEETING WORK OVER INSULATION (WHERE INSULATION IS IN GOOD CONDITION)

UNITED ENGINEERING

K K POWER CONSTRUCTION