Service contract for overhauling of Boiler Pressure Parts of Unit#5 under BandA, BTPS, WBPDCL

Amount

Overhauling of Pressure parts

Cleaning of furnace Zone, PLSH, FSH, FRH by HP water Jet.

Supply and errection of scaffolding materials for furnace and other areas.

Scaffolding of FSH, PLSH, FRH area upto roof top

Pent house and dead chamber cleaning

Penthouse & dead chamber repairing by 3mm ms plate welding

Overhauling of boiler drum

Insertion joint of water wall tube Size: 63. 5X5. 4, Mat: BS3059/45S2 or SA210Gr. C, including replacement of bend

Insertion of division wall tube Size: 82.5X7, Mat: BS3059/45S2 or SA210Gr.C

Insertion joint of furnace roof tube Size: 63. 5X4. 8, Mat: BS3059/620S2 or SA213T11

Insertion joint of Bleed tube

Insertion joint of PLSH and FSH inlet tube Size: 44. 5X7, Mat: SA213T22

Insertion joint of FSH & FRH tube Size: 50. 8X3. 6/6. 3, Mat: SA213T91

Platen SH, Final SH, Final RH coil pulling , inspection and proper alignment of coil and panel with clit and support welding (by SS bar and clamp)

D-metering of boiler tubes in all the high pressure zones of the boiler viz. platen SH, Final R/H, Final S/H, Screen and cage wall, furnace wall, roof tubes, PSH tube, economiser tube etc. and in boiler 1st & 2nd pass (minimum 4500 points)

Radiography of pressure parts weld joint (including old joints)

Stress relieving of welding joints

Inspection and Correction of buck stay and Steelwork (including T and channel connecting joint with tube)

Replacement of stub at different header

Skin casing welding by MS Electrode

Welding of membrane strip

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

Sealing at top of bottom ash hopper by wooden planks, GI sheet and gunny bags

Servicing of Valve size above 40 mm upto 80 mm

Servicing of Valve size above 80 mm upto 100 mm

Servicing of Main steam Stop Valve

Servicing of Eco Inlet Isolating Valve

Servicing of Eco Inlet NRV

Servicing of Start-up vent Isolating v/v

Servicing of FCS Isolating valve

Main steam safety valve 75 mm

Drum safety valve 75 mm

Cold reheat safety valve 153 mm

Trivy test and Assistance to trivy test for Drum, SH, CRH&HRH safety valve

Servicing and repairing of seal plate, dipper plate and tough seal box

Arrangement of require crane/hydra with fuel and operator

Safety valve sheet cutting

Refractory work (manholes, peep hole, wall blower, burner quarl, goose neck to straight tube, etc. )

Scaffolding of Economiser Zone PSH & PRH and cleaning of same by LP water

Inspection and run welding of economiser Hopper, All bracing pipe inspection, changing as per requirement, guard angle fitting upto APH inlet damper

Removal and fitting of guard tube guard plate

Economiser coil lifting, inspection and fitting with proper alignment (including connection joint and RT)

PSH coil lifting, inspection and fitting with proper alignment (including 4 nos. joint/coil and RT)

Insertion joint of PSH bottom bank tube Size: 63. 5X6. 3, Mat: BS3059/45S2 or SA210Gr. C

Insertion joint of PSH middle bank tube Size: 63. 5X8. 8, Mat: BS3059/45S2 or SA210Gr. C

Insertion joint of PSH top bank tube Size: 57. 1X6, Mat: BS3059/620S2 or SA213T11

Insertation joint of Economiser tube 38. 1 x 3. 6 mm, Material BS 3059/45S2

Fabrication of different sizes of bends U-loops etc.

Insulation work (de-insulation and re-insulation)

Replacement of economiser side wall RHS (including replacement of 08 nos. manhole, and PRH I/L header entry bend)

Fixing of manhole at water wall tube (63. 5 x 5. 4, Mat : SA 210 Gr C) including all steel works, fins welding, refractory box repairing/replacement, refractory work, door fixing etc. as per requirement

Man hole/ peep hole door servicing (other than complete manhole/peep hole replacement job)

Eco coil replacement/dismentling repairing and refitting

Engagement of 2 nos. Ex BHEL expert (Age less than 65 yrs. ) for pressure parts checking

Restoration of MS Safety Valve escape including rectification of hanger support

RLA Assitance

GST (if any)

TECHNO ENGINEERING