Overhauling job of Boiler and its pressure parts and HP valves, boiler casing and insulation repairing of Unit 2, BTPS

Amount

Supply & Scaffolding of Furnance zone up to roof top and Sealing at top of bottom ash hopper by Steel planks, GI sheet and gunny bags

Overhauling of boiler drum

High pressure jet cleaning of Furnace Wall, secondary super heater,Reheat super heater, ,primary superheater and economizer coil and Tube of air-preheater (11,280 Nos. of tubes).

Pent house and dead chamber & windbox (avobe bottom ash hopper) ash cleaning

Penthouse , dead chamber & economiser casing repairing by ms plate, angle , channel welding

Replacement of 3/4 leaf expansion bellow at economiser zone

Insertion of joints of secondary super heater. Material: Alloy steel,Size: 63.5mm. ODx 5.16mm. To 8.84mm. Thick including 100% RT

Insertion of joints Primary super heater tubes. Material: Alloy steel, Size: 63.5mm.OD X 5.16 mm to 8.84 mm thick & including 100% RT

Insertion of joints Reheat super heater tubes. Material: Alloy steel, Size: 50.8mm.OD X 3.40mm thick & 57.2mm. OD X 6.10 mm. thick including 100% RT

Repairing & Insertion of Economizer tube Material: Carbon steel, Size: 51.0mm. OD X 4.88 mm thick. including 100% RT during coil repairing.

Insertion of screen wall tube Material: Alloy steel, Size-63.5mm OD X 5.16 Mm thickness. including 100% RT

Insertion of Furnance water wall tube, Material: Carbon steel, Size: 63.5 mm OD X 4.57 mm.to5.16 mm thick & 75.4 mm OD X 5.16 mm.to 7.62 mm thick. including 100% RT

Re-heat and primary super heater inlet & outlet coils pulling,inspection and proper alignment with clit & support bar.

Replacement of Economiser coil at Upper & lower bank. including 100% RT with BED preparation/modification.

Economiser inlet header stub header stub joint rectification/replacement. including 100% RT

A Comprehensive record of thickness of tubes at different locations should be prepared by measuring actual thickness of them with thickness gauge of reputed make to arranged by you measurements which are to be taken at different location.

Fabrication of bends of any degree, bend will be fabricated from straight tubes, at site. One bend may certain more than one off-set. Defective bends will be replaced with new one without any extra cost.

Fabrication of tube guard/shield if required ,shall have to be done from available steel sections.

Errection of guard tube & guard plate for PSH/RH/FSH/Economiser Etc.

Insulation of secondary outlet header , Reheat header, primary out let header, cross over pipe, reheat inlet and outlet pipes, MS pipes within penthouse, Down comer ring header and supply tubes.

Refractory work ( bottom ash hopper & different dead chamber of the boiler, manhole,peep hole,goose neck to straight tube,burner quarrel etc.

Bottom Ash hopper seal plate deeper plate cutting,fitting and welding with proper alignment.

Radiografhy of Boiler tube old welding Joint

Stress relieving of welding joints

Skin casing welding by MS Electrode

Rectification/Straightening of bowed of furnace wall tubes.

Straightening/repair/replacement of Bowed buck stays

Insulation work (de-insulation and re-insulation)

Membrane strip welding

Deposition of weld metal on tubes/stubs/ header etc.

Servicing of Main Steam Isolating valve , Size-12" (boiler end)

Full Servicing of Feed control station hammer isolating valve ;Size: 6"

Full Servicing of Half cap controller valve, Size: 6"

Full servicing of Start up vent isolating valve ,Size :4"

Full Servicing of valve upto , Size: 2"

HP valve gland packing replacement upto 6"

HP valve replacement upto size 2"

02 Nos. Drum safety and 01 Nos. MS safety valve of Unit#2,BTPS servicing

Trivy test and Assistance to trivy test for Drum, Main steam safety valve

Hiring of Crane with operator and fuel

TECHNO ENGINEERING (BID ID -6029746)