Work contract for AOH of boiler non pressure part of 210 MW ATPS MPPGCL Chachai

ANNUAL OVERHAULING OF FANS :

OVERHAULING MAINTENANCE OF ID FANS :

MAINTENANCE OF SEAL AIR FANS :

OVERHAULING MAINTENANCE OF F.D. FANS :

OVERHAULING MAINTENANCE OF PA FANS :

CLEANING & SERVICINGOF FD & PA FAN COMPONENTS :

SECTION B

OVERHAULING OF ROTARY AIR HEATER :

Maintenance of Spool Piece :

Maintenance of sealing system of air Pre-Heaters :

MAINTENANCE OF HEATING ELEMENTS SYSTEM OF AIR PREHEATERS:

STEAM WASHING OF NEW BASKETS

REPLACEMENT OF HOT/INTERMIDEATE END HEATING ELEMENT

REVERSAL OF HOT & INTERMEDIATE END ELEMENTS.

REPLACEMENT OF COLD END HEATING ELEMENT

Welding of Steel (6 mm to 20 mm) MS Plate, Complete Welding of Diaphragm Plate, Stay Plate and Repairing / Replacement of damage / eroded plate

Body and duct repairing

WITHOUT STEEL

SECTION C

REPAIR/ MAINTENANCE OF DUCTINGS

REPAIR OF DUCTS BY PATCHING

WELDING OF STEEL (06 MM TO 20 MM) STEEL PLATE

REPLACEMENT OF BRACING PIPES / PROTECTIVE ANGLES INSIDE DUCT

SECTION D

MAINTENANCE OF DAMPERS & GATES

SECTION E

OVERHAULING MAINTENANCE OF COAL CIRCUIT:

REPAIRING OF RCF BODY:

WITH STEEL

WITHOUT STEEL

REPLACEMENT OF COAL CHUTE ABOVE CENTER FEED PIPE OF COAL MILL

P.F.DISCHARGE PIPE:

REPLACEMENT OF P.F. BENDS.

REPAIRING OF P.F. BEND, CENTRE FEED PIPES & STRAIGHT PIPE BY PATCH WELDING.

REVERSAL OF COAL PIPE BENDS AFTER DUE REPAIRING

REPLACEMENT OF STRAIGHT COAL PIPE/CENTRE FEED PIPE

ROTATION OF STRAIGHT COAL PIPE BY 180 DEGREE ETC.

CHANGING OF COAL PIPE VICTAULIC COUPLING GASKET ETC.

SERVICING OF COAL PIPE HANGER INCLUDING REPAIRING.

SERVICING/ REPLACEMENT OF SLEEVE/VICTOLIC COUPLING OF COAL PIPES.

REPAIRING/REPLACEMENT OF COAL BURNER:

REPLACEMENT OF COMPLETE COAL BURNER ASSEMBLY

REPAIRING OF COAL NOZZLE ASSEMBLY AND FUEL INLET ELBOW AND REFITTING INCLUDING WELDING.

REPLACEMENT/REPAIR OF OIL /AIR TIP.

SERVICING & REFITTING OF OIL GUNS

REPLACEMENT/REPAIR OF GUIDE PIPES OF OIL GUN/SCANNERS/IGNITERS INSIDE THE OIL COMPARTMENT

REPLACEMENT OF WINDBOX CORNER DOOR COVER PLATE BOLTS

REPLACEMENT AND RE-FIXING OF BURNER PANEL AIR SEAL PLATE WITH FASTENER

SERVICING OF BURNER TILT MECHANISM & ALIGNMENT OF ALL FOUR CORNERS COAL NOZZLES.

MILLS :

INSPECTION AND CLEANING OF COAL MILL

ALIGNMENT OF MILL MOTOR WITH GEAR BOX.

REPAIRING/REPLACEMENT OF MPO, MDV, OUTLET VENTURI, MPO PLATE, ETC

SERVICING OF CLASSIFIER VANES

REPLACEMENT/ REVERSAL OF ORIFICE AND VICTAULIC COUPLING GASKETS OF MILL TOP.

REPAIRING AND RESETTING OF BOTTOM INSULATION COVER PLATE.

REPAIRING/REPLACEMENT OF AIR DIVERSION PLATE.

REPAIRING/REPLACEMENT OF MILL BODY SIDE LINER BY PROVIDING PATCHING OF SIZE 300 X 300MM

SERVICING OF LUB OIL SYSTEM OF MILL.

REPAIRING OF AIR PORT ASSEMBLY

REPLACEMENT OF SET OF LABYRINTH SEALS

REPLACEMENT/REPAIRING OF UPPER SKIRT, LOWER SKIRT & SCRAPER

REPLACEMENT/REPAIRING OF LOWER SKIRT AND SCRAPER

REPLACEMENT OF SCRAPER ASSLY.

SERVICING OF SECONDARY AIR DAMPERS

SERVICING, RECTIFICATION OF FEEDER INLET/OUTLET GATE.

SERVICING, RECTIFICATION OF BUNKER OUTLET GATE JAMMING.

REPAIRING OF COAL COMPARTMENT AND WIND BOX JOINTS BY REMOVING OLD DAMAGED PORTION

SECTION F

OVERHAULING OF ESP:

CLEANING, INSPECTION & ALIGNMENT RECTIFICATION OF ESP PASSES :

INTERNAL CLEANING OF ESP FIELDS & HOPPERS

CLEANING & INSPECTION OF SHAFT INSULATOR & ITS HEATING ELEMENTS

REPLACEMENT OF DAMAGED COMPONENTS OF ESP :

INSPECTION & RECTIFICATION OF PLAIN BEARING OR, BUSH BEARINGS & BUSH BEARING HOUSINGS

REPLACEMENT / REPAIRING OF RAPPING HAMMERS OF CERM / EERM /GDRM

REPAIR / REPLACEMENT OF SHAFT INSULATORS

REPAIR / REPLACEMENT OF SUPPORT INSULATORS

REPAIRING OF SUPPORT ANGLES

REPAIR / REPLACEMENT OF G.D. SCREEN

REPLACEMENT OF G.D. DEFLECTION PLATE

REPAIRING & ALIGNMENT OF COLLECTING ELECTRODE

REPLACEMENT & ALIGNMENT OF COLLECTING ELECTRODE

REPLACEMENT & ALIGNMENT OF EMITTING ELECTRODES

REPLACEMENT / REPAIR OF VERTICAL SHAFT OF EERM.

REPLACEMENT OF COMPLETE SHAFT ASSEMBLY OF CERM / EERM/ GDRM

REPLACEMENT OF OIL OF CERM/ EERM/ GDRM GEAR-BOX

REPLACEMENT OF SHOCK-BAR PADS

REPLACEMENT OF GEAR WHEELS OF EERM.

LIFTING & TRANSPORTATION OF ASH FROM ESP AREA

REPAIR & RECLAMATION OF ESP COMPONENTS:

REPAIR OF ESP MANHOLE DOOR

REPAIR OF ESP CASING :

(I) WITH STEEL

SECTION G

SERVICING OF FUEL OIL PRESSURISING SYSTEM:

SERVICING OF HFO PUMP

SERVICING OF LDO PUMP.

SERVICING OF HFO HEATER.

SERVICING / REPLACEMENT OF VALVES

UPTO 50 MM

ABOVE 50 MM

COMPLETE SERVICING OF HFO STRAINER/LDO FILTER.

REPLACEMENT OF TRACING LINE/AIR PIPE/OIL PIPE